[e16e8f2] | 1 | /* ----------------------------------------------------------------------- * |
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| 2 | * |
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| 3 | * Copyright 2008-2011 Gene Cumm - All Rights Reserved |
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| 4 | * |
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| 5 | * This program is free software; you can redistribute it and/or modify |
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| 6 | * it under the terms of the GNU General Public License as published by |
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| 7 | * the Free Software Foundation, Inc., 53 Temple Place Ste 330, |
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| 8 | * Boston MA 02111-1307, USA; either version 2 of the License, or |
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| 9 | * (at your option) any later version; incorporated herein by reference. |
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| 10 | * |
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| 11 | * ----------------------------------------------------------------------- */ |
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| 12 | |
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| 13 | /* |
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| 14 | * rosh.c |
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| 15 | * |
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| 16 | * Read-Only shell; Simple shell system designed for SYSLINUX-derivitives. |
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| 17 | * Provides minimal commands utilizing the console via stdout/stderr as the |
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| 18 | * sole output devices. Designed to compile for Linux for testing/debugging. |
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| 19 | */ |
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| 20 | |
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| 21 | /* |
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| 22 | * ToDos: |
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| 23 | * prompt: Allow left/right arrow, home/end and more? |
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| 24 | * commands Break into argv/argc-like array |
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| 25 | * rosh_cfg: allow -s <file> to change config |
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| 26 | * rosh_ls(): sorted; then multiple columns |
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| 27 | * prompt: Possibly honor timeout on initial entry for usage as UI |
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| 28 | * Also possibly honor totaltimeout |
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| 29 | */ |
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| 30 | |
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| 31 | /*#define DO_DEBUG 1 |
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| 32 | //*/ |
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| 33 | /* Uncomment the above line for debugging output; Comment to remove */ |
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| 34 | /*#define DO_DEBUG2 1 |
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| 35 | //*/ |
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| 36 | /* Uncomment the above line for super-debugging output; Must have regular |
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| 37 | * debugging enabled; Comment to remove. |
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| 38 | */ |
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| 39 | #include "rosh.h" |
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| 40 | #include "version.h" |
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| 41 | |
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| 42 | #define APP_LONGNAME "Read-Only Shell" |
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| 43 | #define APP_NAME "rosh" |
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| 44 | #define APP_AUTHOR "Gene Cumm" |
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| 45 | #define APP_YEAR "2010" |
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| 46 | #define APP_VER "beta-b090" |
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| 47 | |
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| 48 | /* Print version information to stdout |
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| 49 | */ |
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| 50 | void rosh_version(int vtype) |
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| 51 | { |
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| 52 | char env[256]; |
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| 53 | env[0] = 0; |
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| 54 | printf("%s v %s; (c) %s %s.\n\tFrom Syslinux %s, %s\n", APP_LONGNAME, APP_VER, APP_YEAR, APP_AUTHOR, VERSION_STR, DATE); |
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| 55 | switch (vtype) { |
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| 56 | case 1: |
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| 57 | rosh_get_env_ver(env, 256); |
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| 58 | printf("\tRunning on %s\n", env); |
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| 59 | } |
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| 60 | } |
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| 61 | |
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| 62 | /* Print beta message and if DO_DEBUG/DO_DEBUG2 are active |
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| 63 | */ |
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| 64 | void print_beta(void) |
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| 65 | { |
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| 66 | puts(rosh_beta_str); |
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| 67 | ROSH_DEBUG("DO_DEBUG active\n"); |
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| 68 | ROSH_DEBUG2("DO_DEBUG2 active\n"); |
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| 69 | } |
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| 70 | |
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| 71 | /* Search a string for first non-space (' ') character, starting at ipos |
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| 72 | * istr input string to parse |
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| 73 | * ipos input position to start at |
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| 74 | */ |
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| 75 | int rosh_search_nonsp(const char *istr, const int ipos) |
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| 76 | { |
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| 77 | int curpos; |
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| 78 | char c; |
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| 79 | |
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| 80 | curpos = ipos; |
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| 81 | c = istr[curpos]; |
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| 82 | while (c && isspace(c)) |
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| 83 | c = istr[++curpos]; |
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| 84 | return curpos; |
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| 85 | } |
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| 86 | |
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| 87 | /* Search a string for space (' '), returning the position of the next space |
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| 88 | * or the '\0' at end of string |
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| 89 | * istr input string to parse |
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| 90 | * ipos input position to start at |
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| 91 | */ |
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| 92 | int rosh_search_sp(const char *istr, const int ipos) |
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| 93 | { |
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| 94 | int curpos; |
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| 95 | char c; |
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| 96 | |
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| 97 | curpos = ipos; |
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| 98 | c = istr[curpos]; |
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| 99 | while (c && !(isspace(c))) |
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| 100 | c = istr[++curpos]; |
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| 101 | return curpos; |
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| 102 | } |
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| 103 | |
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| 104 | /* Parse a string for the first non-space string, returning the end position |
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| 105 | * from src |
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| 106 | * dest string to contain the first non-space string |
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| 107 | * src string to parse |
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| 108 | * ipos Position to start in src |
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| 109 | */ |
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| 110 | int rosh_parse_sp_1(char *dest, const char *src, const int ipos) |
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| 111 | { |
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| 112 | int bpos, epos; /* beginning and ending position of source string |
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| 113 | to copy to destination string */ |
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| 114 | |
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| 115 | bpos = 0; |
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| 116 | epos = 0; |
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| 117 | /* //HERE-error condition checking */ |
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| 118 | bpos = rosh_search_nonsp(src, ipos); |
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| 119 | epos = rosh_search_sp(src, bpos); |
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| 120 | if (epos > bpos) { |
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| 121 | memcpy(dest, src + bpos, epos - bpos); |
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| 122 | if (dest[epos - bpos] != 0) |
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| 123 | dest[epos - bpos] = 0; |
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| 124 | } else { |
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| 125 | epos = strlen(src); |
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| 126 | dest[0] = 0; |
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| 127 | } |
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| 128 | return epos; |
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| 129 | } |
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| 130 | |
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| 131 | /* |
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| 132 | * parse_args1: Try 1 at parsing a string to an argc/argv pair. use free_args1 to free memory malloc'd |
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| 133 | * |
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| 134 | * Derived from com32/lib/sys/argv.c:__parse_argv() |
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| 135 | * Copyright 2004-2009 H. Peter Anvin - All Rights Reserved |
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| 136 | * Copyright 2009 Intel Corporation; author: H. Peter Anvin |
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| 137 | */ |
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| 138 | int parse_args1(char ***iargv, const char *istr) |
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| 139 | { |
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| 140 | int argc = 0; |
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| 141 | const char *p; |
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| 142 | char *q, *r, *args, **arg; |
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| 143 | int sp = 1; //, qt = 0; /* Was a space; inside a quote */ |
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| 144 | |
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| 145 | /* Scan 1: Length */ |
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| 146 | /* I could eliminate this if I knew a max length, like strncpy() */ |
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| 147 | int len = strlen(istr); |
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| 148 | |
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| 149 | /* Scan 2: Copy, nullify and make argc */ |
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| 150 | if (!(args = malloc(len + 1))) |
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| 151 | goto fail_args; |
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| 152 | q = args; |
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| 153 | for (p = istr;; p++) { |
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| 154 | if (*p <= ' ') { |
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| 155 | if (!sp) { |
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| 156 | sp = 1; |
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| 157 | *q++ = '\0'; |
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| 158 | } |
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| 159 | } else { |
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| 160 | if (sp) { |
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| 161 | argc++; |
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| 162 | sp = 0; |
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| 163 | } |
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| 164 | *q++ = *p; |
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| 165 | } |
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| 166 | if (!*p) |
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| 167 | break; |
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| 168 | } |
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| 169 | |
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| 170 | q--; /* Point q to final null */ |
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| 171 | /* Scan 3: Build array of pointers */ |
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| 172 | if (!(*iargv = malloc((argc + 1) * sizeof(char *)))) |
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| 173 | goto fail_args_ptr; |
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| 174 | arg = *iargv; |
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| 175 | arg[argc] = NULL; /* Nullify the last pointer */ |
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| 176 | if (*args != '\0') |
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| 177 | *arg++ = args; |
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| 178 | for (r = args; r < q ; r++) { |
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| 179 | if (*r == '\0') { |
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| 180 | *arg++ = r + 1; |
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| 181 | } |
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| 182 | } |
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| 183 | |
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| 184 | fail_args: |
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| 185 | return argc; |
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| 186 | fail_args_ptr: |
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| 187 | free(args); |
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| 188 | return 0; |
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| 189 | } |
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| 190 | |
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| 191 | /* Free argv created by parse_args1() |
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| 192 | * argv Argument Values |
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| 193 | */ |
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| 194 | void free_args1(char ***argv) |
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| 195 | { |
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| 196 | char *s; |
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| 197 | s = **argv; |
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| 198 | free(*argv); |
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| 199 | free(s); |
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| 200 | } |
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| 201 | |
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| 202 | /* Convert a string to an argc/argv pair |
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| 203 | * str String to parse |
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| 204 | * argv Argument Values |
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| 205 | * returns Argument Count |
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| 206 | */ |
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| 207 | int rosh_str2argv(char ***argv, const char *str) |
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| 208 | { |
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| 209 | return parse_args1(argv, str); |
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| 210 | } |
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| 211 | |
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| 212 | /* Free an argv created by rosh_str2argv() |
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| 213 | * argv Argument Values to free |
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| 214 | */ |
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| 215 | void rosh_free_argv(char ***argv) |
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| 216 | { |
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| 217 | free_args1(argv); |
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| 218 | } |
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| 219 | |
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| 220 | /* Print the contents of an argc/argv pair |
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| 221 | * argc Argument Count |
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| 222 | * argv Argument Values |
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| 223 | */ |
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| 224 | void rosh_pr_argv(int argc, char *argv[]) |
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| 225 | { |
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| 226 | int i; |
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| 227 | for (i = 0; i < argc; i++) { |
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| 228 | printf("%s%s", argv[i], (i < argc)? " " : ""); |
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| 229 | } |
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| 230 | puts(""); |
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| 231 | } |
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| 232 | |
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| 233 | /* Print the contents of an argc/argv pair verbosely |
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| 234 | * argc Argument Count |
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| 235 | * argv Argument Values |
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| 236 | */ |
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| 237 | void rosh_pr_argv_v(int argc, char *argv[]) |
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| 238 | { |
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| 239 | int i; |
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| 240 | for (i = 0; i < argc; i++) { |
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| 241 | printf("%4d '%s'\n", i, argv[i]); |
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| 242 | } |
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| 243 | } |
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| 244 | |
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| 245 | /* Reset the getopt() environment |
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| 246 | */ |
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| 247 | void rosh_getopt_reset(void) |
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| 248 | { |
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| 249 | optind = 0; |
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| 250 | optopt = 0; |
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| 251 | } |
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| 252 | |
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| 253 | /* Display help |
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| 254 | * type Help type |
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| 255 | * cmdstr Command for which help is requested |
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| 256 | */ |
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| 257 | void rosh_help(int type, const char *cmdstr) |
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| 258 | { |
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| 259 | switch (type) { |
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| 260 | case 2: |
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| 261 | if ((cmdstr == NULL) || (strcmp(cmdstr, "") == 0)) { |
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| 262 | rosh_version(0); |
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| 263 | puts(rosh_help_str2); |
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| 264 | } else { |
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| 265 | switch (cmdstr[0]) { |
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| 266 | case 'c': |
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| 267 | puts(rosh_help_cd_str); |
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| 268 | break; |
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| 269 | case 'l': |
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| 270 | puts(rosh_help_ls_str); |
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| 271 | break; |
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| 272 | default: |
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| 273 | printf(rosh_help_str_adv, cmdstr); |
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| 274 | } |
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| 275 | } |
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| 276 | break; |
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| 277 | case 1: |
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| 278 | default: |
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| 279 | if (cmdstr) |
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| 280 | printf("%s: %s: unknown command\n", APP_NAME, cmdstr); |
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| 281 | rosh_version(0); |
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| 282 | puts(rosh_help_str1); |
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| 283 | } |
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| 284 | } |
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| 285 | |
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| 286 | /* Handle most/all errors |
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| 287 | * ierrno Input Error number |
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| 288 | * cmdstr Command being executed to cause error |
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| 289 | * filestr File/parameter causing error |
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| 290 | */ |
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| 291 | void rosh_error(const int ierrno, const char *cmdstr, const char *filestr) |
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| 292 | { |
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| 293 | printf("--ERROR: %s '%s': ", cmdstr, filestr); |
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| 294 | switch (ierrno) { |
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| 295 | case 0: |
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| 296 | puts("NO ERROR"); |
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| 297 | break; |
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| 298 | case ENOENT: |
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| 299 | puts("not found"); |
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| 300 | /* SYSLinux-3.72 COM32 API returns this for a |
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| 301 | directory or empty file */ |
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| 302 | ROSH_COM32(" (COM32) could be a directory or empty file\n"); |
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| 303 | break; |
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| 304 | case EIO: |
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| 305 | puts("I/O Error"); |
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| 306 | break; |
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| 307 | case EBADF: |
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| 308 | puts("Bad File Descriptor"); |
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| 309 | break; |
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| 310 | case EACCES: |
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| 311 | puts("Access DENIED"); |
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| 312 | break; |
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| 313 | case ENOTDIR: |
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| 314 | puts("not a directory"); |
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| 315 | ROSH_COM32(" (COM32) could be directory\n"); |
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| 316 | break; |
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| 317 | case EISDIR: |
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| 318 | puts("IS a directory"); |
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| 319 | break; |
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| 320 | case ENOSYS: |
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| 321 | puts("not implemented"); |
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| 322 | break; |
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| 323 | default: |
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| 324 | printf("returns error; errno=%d\n", ierrno); |
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| 325 | } |
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| 326 | } /* rosh_error */ |
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| 327 | |
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| 328 | /* Concatenate command line arguments into one string |
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| 329 | * cmdstr Output command string |
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| 330 | * cmdlen Length of cmdstr |
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| 331 | * argc Argument Count |
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| 332 | * argv Argument Values |
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| 333 | * barg Beginning Argument |
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| 334 | */ |
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| 335 | int rosh_argcat(char *cmdstr, const int cmdlen, const int argc, char *argv[], |
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| 336 | const int barg) |
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| 337 | { |
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| 338 | int i, arglen, curpos; /* index, argument length, current position |
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| 339 | in cmdstr */ |
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| 340 | curpos = 0; |
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| 341 | cmdstr[0] = '\0'; /* Nullify string just to be sure */ |
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| 342 | for (i = barg; i < argc; i++) { |
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| 343 | arglen = strlen(argv[i]); |
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| 344 | /* Theoretically, this should never be met in SYSLINUX */ |
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| 345 | if ((curpos + arglen) > (cmdlen - 1)) |
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| 346 | arglen = (cmdlen - 1) - curpos; |
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| 347 | memcpy(cmdstr + curpos, argv[i], arglen); |
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| 348 | curpos += arglen; |
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| 349 | if (curpos >= (cmdlen - 1)) { |
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| 350 | /* Hopefully, curpos should not be greater than |
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| 351 | (cmdlen - 1) */ |
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| 352 | /* Still need a '\0' at the last character */ |
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| 353 | cmdstr[(cmdlen - 1)] = 0; |
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| 354 | break; /* Escape out of the for() loop; |
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| 355 | We can no longer process anything more */ |
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| 356 | } else { |
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| 357 | cmdstr[curpos] = ' '; |
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| 358 | curpos += 1; |
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| 359 | cmdstr[curpos] = 0; |
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| 360 | } |
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| 361 | } |
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| 362 | /* If there's a ' ' at the end, remove it. This is normal unless |
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| 363 | the maximum length is met/exceeded. */ |
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| 364 | if (cmdstr[curpos - 1] == ' ') |
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| 365 | cmdstr[--curpos] = 0; |
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| 366 | return curpos; |
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| 367 | } /* rosh_argcat */ |
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| 368 | |
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| 369 | /* |
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| 370 | * Prints a lot of the data in a struct termios |
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| 371 | */ |
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| 372 | /* |
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| 373 | void rosh_print_tc(struct termios *tio) |
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| 374 | { |
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| 375 | printf(" -- termios: "); |
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| 376 | printf(".c_iflag=%04X ", tio->c_iflag); |
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| 377 | printf(".c_oflag=%04X ", tio->c_oflag); |
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| 378 | printf(".c_cflag=%04X ", tio->c_cflag); |
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| 379 | printf(".c_lflag=%04X ", tio->c_lflag); |
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| 380 | printf(".c_cc[VTIME]='%d' ", tio->c_cc[VTIME]); |
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| 381 | printf(".c_cc[VMIN]='%d'", tio->c_cc[VMIN]); |
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| 382 | printf("\n"); |
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| 383 | } |
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| 384 | */ |
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| 385 | |
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| 386 | /* |
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| 387 | * Attempts to get a single key from the console |
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| 388 | * returns key pressed |
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| 389 | */ |
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| 390 | int rosh_getkey(void) |
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| 391 | { |
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| 392 | int inc; |
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| 393 | |
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| 394 | inc = KEY_NONE; |
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| 395 | while (inc == KEY_NONE) |
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| 396 | inc = get_key(stdin, 6000); |
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| 397 | return inc; |
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| 398 | } /* rosh_getkey */ |
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| 399 | |
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| 400 | /* |
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| 401 | * Qualifies a filename relative to the working directory |
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| 402 | * filestr Filename to qualify |
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| 403 | * pwdstr working directory |
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| 404 | * returns qualified file name string |
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| 405 | */ |
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| 406 | void rosh_qualify_filestr(char *filestr, const char *ifilstr, |
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| 407 | const char *pwdstr) |
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| 408 | { |
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| 409 | int filepos = 0; |
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| 410 | if ((filestr) && (pwdstr) && (ifilstr)) { |
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| 411 | if (ifilstr[0] != SEP) { |
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| 412 | strcpy(filestr, pwdstr); |
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| 413 | filepos = strlen(pwdstr); |
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| 414 | if (filestr[filepos - 1] != SEP) |
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| 415 | filestr[filepos++] = SEP; |
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| 416 | } |
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| 417 | strcpy(filestr + filepos, ifilstr); |
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| 418 | ROSH_DEBUG("--'%s'\n", filestr); |
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| 419 | } |
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| 420 | } |
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| 421 | |
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| 422 | /* Concatenate multiple files to stdout |
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| 423 | * argc Argument Count |
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| 424 | * argv Argument Values |
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| 425 | */ |
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| 426 | void rosh_cat(int argc, char *argv[]) |
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| 427 | { |
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| 428 | FILE *f; |
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| 429 | char buf[ROSH_BUF_SZ]; |
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| 430 | int i, numrd; |
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| 431 | |
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| 432 | for (i = 0; i < argc; i++) { |
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| 433 | printf("--File = '%s'\n", argv[i]); |
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| 434 | errno = 0; |
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| 435 | f = fopen(argv[i], "r"); |
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| 436 | if (f != NULL) { |
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| 437 | numrd = fread(buf, 1, ROSH_BUF_SZ, f); |
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| 438 | while (numrd > 0) { |
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| 439 | fwrite(buf, 1, numrd, stdout); |
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| 440 | numrd = fread(buf, 1, ROSH_BUF_SZ, f); |
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| 441 | } |
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| 442 | fclose(f); |
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| 443 | } else { |
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| 444 | rosh_error(errno, "cat", argv[i]); |
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| 445 | errno = 0; |
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| 446 | } |
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| 447 | } |
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| 448 | } /* rosh_cat */ |
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| 449 | |
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| 450 | /* Change PWD (Present Working Directory) |
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| 451 | * argc Argument count |
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| 452 | * argv Argument values |
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| 453 | * ipwdstr Initial PWD |
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| 454 | */ |
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| 455 | void rosh_cd(int argc, char *argv[], const char *ipwdstr) |
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| 456 | { |
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| 457 | int rv = 0; |
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| 458 | #ifdef DO_DEBUG |
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| 459 | char filestr[ROSH_PATH_SZ]; |
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| 460 | #endif /* DO_DEBUG */ |
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| 461 | ROSH_DEBUG("CMD: \n"); |
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| 462 | ROSH_DEBUG_ARGV_V(argc, argv); |
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| 463 | errno = 0; |
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| 464 | if (argc == 2) |
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| 465 | rv = chdir(argv[1]); |
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| 466 | else if (argc == 1) |
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| 467 | rv = chdir(ipwdstr); |
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| 468 | else |
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| 469 | rosh_help(2, argv[0]); |
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| 470 | if (rv != 0) { |
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| 471 | if (argc == 2) |
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| 472 | rosh_error(errno, "cd", argv[1]); |
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| 473 | else |
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| 474 | rosh_error(errno, "cd", ipwdstr); |
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| 475 | errno = 0; |
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| 476 | } else { |
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| 477 | #ifdef DO_DEBUG |
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| 478 | if (getcwd(filestr, ROSH_PATH_SZ)) |
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| 479 | ROSH_DEBUG(" %s\n", filestr); |
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| 480 | #endif /* DO_DEBUG */ |
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| 481 | } |
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| 482 | } /* rosh_cd */ |
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| 483 | |
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| 484 | /* Print the syslinux config file name |
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| 485 | */ |
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| 486 | void rosh_cfg(void) |
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| 487 | { |
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| 488 | printf("CFG: '%s'\n", syslinux_config_file()); |
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| 489 | } /* rosh_cfg */ |
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| 490 | |
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| 491 | /* Echo a string back to the screen |
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| 492 | * cmdstr command string to process |
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| 493 | */ |
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| 494 | void rosh_echo(const char *cmdstr) |
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| 495 | { |
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| 496 | int bpos = 0; |
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| 497 | ROSH_DEBUG("CMD: '%s'\n", cmdstr); |
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| 498 | bpos = rosh_search_nonsp(cmdstr, rosh_search_sp(cmdstr, 0)); |
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| 499 | if (bpos > 1) { |
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| 500 | ROSH_DEBUG(" bpos=%d\n", bpos); |
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| 501 | printf("'%s'\n", cmdstr + bpos); |
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| 502 | } else { |
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| 503 | puts(""); |
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| 504 | } |
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| 505 | } /* rosh_echo */ |
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| 506 | |
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| 507 | /* Process argc/argv to optarr |
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| 508 | * argc Argument count |
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| 509 | * argv Argument values |
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| 510 | * optarr option array to populate |
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| 511 | */ |
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| 512 | void rosh_ls_arg_opt(int argc, char *argv[], int optarr[]) |
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| 513 | { |
---|
| 514 | int rv = 0; |
---|
| 515 | |
---|
| 516 | optarr[0] = -1; |
---|
| 517 | optarr[1] = -1; |
---|
| 518 | optarr[2] = -1; |
---|
| 519 | rosh_getopt_reset(); |
---|
| 520 | while (rv != -1) { |
---|
| 521 | ROSH_DEBUG2("getopt optind=%d rv=%d\n", optind, rv); |
---|
| 522 | rv = getopt(argc, argv, rosh_ls_opt_str); |
---|
| 523 | switch (rv) { |
---|
| 524 | case 'l': |
---|
| 525 | case 0: |
---|
| 526 | optarr[0] = 1; |
---|
| 527 | break; |
---|
| 528 | case 'F': |
---|
| 529 | case 1: |
---|
| 530 | optarr[1] = 1; |
---|
| 531 | break; |
---|
| 532 | case 'i': |
---|
| 533 | case 2: |
---|
| 534 | optarr[2] = 1; |
---|
| 535 | break; |
---|
| 536 | case '?': |
---|
| 537 | case -1: |
---|
| 538 | default: |
---|
| 539 | ROSH_DEBUG2("getopt optind=%d rv=%d\n", optind, rv); |
---|
| 540 | break; |
---|
| 541 | } |
---|
| 542 | } |
---|
| 543 | ROSH_DEBUG2(" end getopt optind=%d rv=%d\n", optind, rv); |
---|
| 544 | ROSH_DEBUG2("\tIn rosh_ls_arg_opt() opt[0]=%d\topt[1]=%d\topt[2]=%d\n", optarr[0], optarr[1], |
---|
| 545 | optarr[2]); |
---|
| 546 | } /* rosh_ls_arg_opt */ |
---|
| 547 | |
---|
| 548 | /* Retrieve the size of a file argument |
---|
| 549 | * filestr directory name of directory entry |
---|
| 550 | * de directory entry |
---|
| 551 | */ |
---|
| 552 | int rosh_ls_de_size(const char *filestr, struct dirent *de) |
---|
| 553 | { |
---|
| 554 | int de_size; |
---|
| 555 | char filestr2[ROSH_PATH_SZ]; |
---|
| 556 | int fd2, file2pos; |
---|
| 557 | struct stat fdstat; |
---|
| 558 | |
---|
| 559 | filestr2[0] = 0; |
---|
| 560 | file2pos = -1; |
---|
| 561 | if (filestr) { |
---|
| 562 | file2pos = strlen(filestr); |
---|
| 563 | memcpy(filestr2, filestr, file2pos); |
---|
| 564 | filestr2[file2pos] = '/'; |
---|
| 565 | } |
---|
| 566 | strcpy(filestr2 + file2pos + 1, de->d_name); |
---|
| 567 | fd2 = open(filestr2, O_RDONLY); |
---|
| 568 | fstat(fd2, &fdstat); |
---|
| 569 | fd2 = close(fd2); |
---|
| 570 | de_size = (int)fdstat.st_size; |
---|
| 571 | return de_size; |
---|
| 572 | } /* rosh_ls_de_size */ |
---|
| 573 | |
---|
| 574 | /* Retrieve the size and mode of a file |
---|
| 575 | * filestr directory name of directory entry |
---|
| 576 | * de directory entry |
---|
| 577 | */ |
---|
| 578 | int rosh_ls_de_size_mode(const char *filestr, struct dirent *de, mode_t * st_mode) |
---|
| 579 | { |
---|
| 580 | int de_size; |
---|
| 581 | char filestr2[ROSH_PATH_SZ]; |
---|
| 582 | int file2pos; |
---|
| 583 | struct stat fdstat; |
---|
| 584 | int status; |
---|
| 585 | |
---|
| 586 | filestr2[0] = 0; |
---|
| 587 | file2pos = -1; |
---|
| 588 | memset(&fdstat, 0, sizeof fdstat); |
---|
| 589 | ROSH_DEBUG2("ls:dsm(%s, %s) ", filestr, de->d_name); |
---|
| 590 | if (filestr) { |
---|
| 591 | /* FIXME: prevent string overflow */ |
---|
| 592 | file2pos = strlen(filestr); |
---|
| 593 | memcpy(filestr2, filestr, file2pos); |
---|
| 594 | if (( filestr2[file2pos - 1] == SEP )) { |
---|
| 595 | file2pos--; |
---|
| 596 | } else { |
---|
| 597 | filestr2[file2pos] = SEP; |
---|
| 598 | } |
---|
| 599 | } |
---|
| 600 | strcpy(filestr2 + file2pos + 1, de->d_name); |
---|
| 601 | errno = 0; |
---|
| 602 | ROSH_DEBUG2("stat(%s) ", filestr2); |
---|
| 603 | status = stat(filestr2, &fdstat); |
---|
| 604 | (void)status; |
---|
| 605 | ROSH_DEBUG2("\t--stat()=%d\terr=%d\n", status, errno); |
---|
| 606 | if (errno) { |
---|
| 607 | rosh_error(errno, "ls:szmd.stat", de->d_name); |
---|
| 608 | errno = 0; |
---|
| 609 | } |
---|
| 610 | de_size = (int)fdstat.st_size; |
---|
| 611 | *st_mode = fdstat.st_mode; |
---|
| 612 | return de_size; |
---|
| 613 | } /* rosh_ls_de_size_mode */ |
---|
| 614 | |
---|
| 615 | /* Returns the Inode number if fdstat contains it |
---|
| 616 | * fdstat struct to extract inode from if not COM32, for now |
---|
| 617 | */ |
---|
| 618 | long rosh_ls_d_ino(struct stat *fdstat) |
---|
| 619 | { |
---|
| 620 | long de_ino; |
---|
| 621 | #ifdef __COM32__ |
---|
| 622 | if (fdstat) |
---|
| 623 | de_ino = -1; |
---|
| 624 | else |
---|
| 625 | de_ino = 0; |
---|
| 626 | #else /* __COM32__ */ |
---|
| 627 | de_ino = fdstat->st_ino; |
---|
| 628 | #endif /* __COM32__ */ |
---|
| 629 | return de_ino; |
---|
| 630 | } |
---|
| 631 | |
---|
| 632 | /* Convert a d_type to a single char in human readable format |
---|
| 633 | * d_type d_type to convert |
---|
| 634 | * returns human readable single character; a space if other |
---|
| 635 | */ |
---|
| 636 | char rosh_d_type2char_human(unsigned char d_type) |
---|
| 637 | { |
---|
| 638 | char ret; |
---|
| 639 | switch (d_type) { |
---|
| 640 | case DT_UNKNOWN: |
---|
| 641 | ret = 'U'; |
---|
| 642 | break; /* Unknown */ |
---|
| 643 | case DT_FIFO: |
---|
| 644 | ret = 'F'; |
---|
| 645 | break; /* FIFO */ |
---|
| 646 | case DT_CHR: |
---|
| 647 | ret = 'C'; |
---|
| 648 | break; /* Char Dev */ |
---|
| 649 | case DT_DIR: |
---|
| 650 | ret = 'D'; |
---|
| 651 | break; /* Directory */ |
---|
| 652 | case DT_BLK: |
---|
| 653 | ret = 'B'; |
---|
| 654 | break; /* Block Dev */ |
---|
| 655 | case DT_REG: |
---|
| 656 | ret = 'R'; |
---|
| 657 | break; /* Regular File */ |
---|
| 658 | case DT_LNK: |
---|
| 659 | ret = 'L'; |
---|
| 660 | break; /* Link, Symbolic */ |
---|
| 661 | case DT_SOCK: |
---|
| 662 | ret = 'S'; |
---|
| 663 | break; /* Socket */ |
---|
| 664 | case DT_WHT: |
---|
| 665 | ret = 'W'; |
---|
| 666 | break; /* UnionFS Whiteout */ |
---|
| 667 | default: |
---|
| 668 | ret = ' '; |
---|
| 669 | } |
---|
| 670 | return ret; |
---|
| 671 | } /* rosh_d_type2char_human */ |
---|
| 672 | |
---|
| 673 | /* Convert a d_type to a single char by ls's prefix standards for -l |
---|
| 674 | * d_type d_type to convert |
---|
| 675 | * returns ls style single character; a space if other |
---|
| 676 | */ |
---|
| 677 | char rosh_d_type2char_lspre(unsigned char d_type) |
---|
| 678 | { |
---|
| 679 | char ret; |
---|
| 680 | switch (d_type) { |
---|
| 681 | case DT_FIFO: |
---|
| 682 | ret = 'p'; |
---|
| 683 | break; |
---|
| 684 | case DT_CHR: |
---|
| 685 | ret = 'c'; |
---|
| 686 | break; |
---|
| 687 | case DT_DIR: |
---|
| 688 | ret = 'd'; |
---|
| 689 | break; |
---|
| 690 | case DT_BLK: |
---|
| 691 | ret = 'b'; |
---|
| 692 | break; |
---|
| 693 | case DT_REG: |
---|
| 694 | ret = '-'; |
---|
| 695 | break; |
---|
| 696 | case DT_LNK: |
---|
| 697 | ret = 'l'; |
---|
| 698 | break; |
---|
| 699 | case DT_SOCK: |
---|
| 700 | ret = 's'; |
---|
| 701 | break; |
---|
| 702 | default: |
---|
| 703 | ret = '?'; |
---|
| 704 | } |
---|
| 705 | return ret; |
---|
| 706 | } /* rosh_d_type2char_lspre */ |
---|
| 707 | |
---|
| 708 | /* Convert a d_type to a single char by ls's classify (-F) suffix standards |
---|
| 709 | * d_type d_type to convert |
---|
| 710 | * returns ls style single character; a space if other |
---|
| 711 | */ |
---|
| 712 | char rosh_d_type2char_lssuf(unsigned char d_type) |
---|
| 713 | { |
---|
| 714 | char ret; |
---|
| 715 | switch (d_type) { |
---|
| 716 | case DT_FIFO: |
---|
| 717 | ret = '|'; |
---|
| 718 | break; |
---|
| 719 | case DT_DIR: |
---|
| 720 | ret = '/'; |
---|
| 721 | break; |
---|
| 722 | case DT_LNK: |
---|
| 723 | ret = '@'; |
---|
| 724 | break; |
---|
| 725 | case DT_SOCK: |
---|
| 726 | ret = '='; |
---|
| 727 | break; |
---|
| 728 | default: |
---|
| 729 | ret = ' '; |
---|
| 730 | } |
---|
| 731 | return ret; |
---|
| 732 | } /* rosh_d_type2char_lssuf */ |
---|
| 733 | |
---|
| 734 | /* Converts data in the "other" place of st_mode to a ls-style string |
---|
| 735 | * st_mode Mode in other to analyze |
---|
| 736 | * st_mode_str string to hold converted string |
---|
| 737 | */ |
---|
| 738 | void rosh_st_mode_am2str(mode_t st_mode, char *st_mode_str) |
---|
| 739 | { |
---|
| 740 | st_mode_str[0] = ((st_mode & S_IROTH) ? 'r' : '-'); |
---|
| 741 | st_mode_str[1] = ((st_mode & S_IWOTH) ? 'w' : '-'); |
---|
| 742 | st_mode_str[2] = ((st_mode & S_IXOTH) ? 'x' : '-'); |
---|
| 743 | } |
---|
| 744 | |
---|
| 745 | /* Converts st_mode to an ls-style string |
---|
| 746 | * st_mode mode to convert |
---|
| 747 | * st_mode_str string to hold converted string |
---|
| 748 | */ |
---|
| 749 | void rosh_st_mode2str(mode_t st_mode, char *st_mode_str) |
---|
| 750 | { |
---|
| 751 | st_mode_str[0] = rosh_d_type2char_lspre(IFTODT(st_mode)); |
---|
| 752 | rosh_st_mode_am2str((st_mode & S_IRWXU) >> 6, st_mode_str + 1); |
---|
| 753 | rosh_st_mode_am2str((st_mode & S_IRWXG) >> 3, st_mode_str + 4); |
---|
| 754 | rosh_st_mode_am2str(st_mode & S_IRWXO, st_mode_str + 7); |
---|
| 755 | st_mode_str[10] = 0; |
---|
| 756 | } /* rosh_st_mode2str */ |
---|
| 757 | |
---|
| 758 | /* Output a single entry |
---|
| 759 | * filestr directory name to list |
---|
| 760 | * de directory entry |
---|
| 761 | * optarr Array of options |
---|
| 762 | */ |
---|
| 763 | void rosh_ls_arg_dir_de(const char *filestr, struct dirent *de, const int *optarr) |
---|
| 764 | { |
---|
| 765 | int de_size; |
---|
| 766 | mode_t st_mode; |
---|
| 767 | char st_mode_str[11]; |
---|
| 768 | st_mode = 0; |
---|
| 769 | ROSH_DEBUG2("+"); |
---|
| 770 | if (optarr[2] > -1) |
---|
| 771 | printf("%10d ", (int)(de->d_ino)); |
---|
| 772 | if (optarr[0] > -1) { |
---|
| 773 | de_size = rosh_ls_de_size_mode(filestr, de, &st_mode); |
---|
| 774 | rosh_st_mode2str(st_mode, st_mode_str); |
---|
| 775 | ROSH_DEBUG2("%04X ", st_mode); |
---|
| 776 | printf("%s %10d ", st_mode_str, de_size); |
---|
| 777 | } |
---|
| 778 | ROSH_DEBUG("'"); |
---|
| 779 | printf("%s", de->d_name); |
---|
| 780 | ROSH_DEBUG("'"); |
---|
| 781 | if (optarr[1] > -1) |
---|
| 782 | printf("%c", rosh_d_type2char_lssuf(de->d_type)); |
---|
| 783 | printf("\n"); |
---|
| 784 | } /* rosh_ls_arg_dir_de */ |
---|
| 785 | |
---|
| 786 | /* Output listing of a regular directory |
---|
| 787 | * filestr directory name to list |
---|
| 788 | * d the open DIR |
---|
| 789 | * optarr Array of options |
---|
| 790 | NOTE:This is where I could use qsort |
---|
| 791 | */ |
---|
| 792 | void rosh_ls_arg_dir(const char *filestr, DIR * d, const int *optarr) |
---|
| 793 | { |
---|
| 794 | struct dirent *de; |
---|
| 795 | int filepos; |
---|
| 796 | |
---|
| 797 | filepos = 0; |
---|
| 798 | errno = 0; |
---|
| 799 | while ((de = readdir(d))) { |
---|
| 800 | filepos++; |
---|
| 801 | rosh_ls_arg_dir_de(filestr, de, optarr); |
---|
| 802 | } |
---|
| 803 | if (errno) { |
---|
| 804 | rosh_error(errno, "ls:arg_dir", filestr); |
---|
| 805 | errno = 0; |
---|
| 806 | } else { if (filepos == 0) |
---|
| 807 | ROSH_DEBUG("0 files found"); |
---|
| 808 | } |
---|
| 809 | } /* rosh_ls_arg_dir */ |
---|
| 810 | |
---|
| 811 | /* Simple directory listing for one argument (file/directory) based on |
---|
| 812 | * filestr and pwdstr |
---|
| 813 | * ifilstr input filename/directory name to list |
---|
| 814 | * pwdstr Present Working Directory string |
---|
| 815 | * optarr Option Array |
---|
| 816 | */ |
---|
| 817 | void rosh_ls_arg(const char *filestr, const int *optarr) |
---|
| 818 | { |
---|
| 819 | struct stat fdstat; |
---|
| 820 | int status; |
---|
| 821 | // char filestr[ROSH_PATH_SZ]; |
---|
| 822 | // int filepos; |
---|
| 823 | DIR *d; |
---|
| 824 | struct dirent de; |
---|
| 825 | |
---|
| 826 | /* Initialization; make filestr based on leading character of ifilstr |
---|
| 827 | and pwdstr */ |
---|
| 828 | // rosh_qualify_filestr(filestr, ifilstr, pwdstr); |
---|
| 829 | fdstat.st_mode = 0; |
---|
| 830 | fdstat.st_size = 0; |
---|
| 831 | ROSH_DEBUG("\topt[0]=%d\topt[1]=%d\topt[2]=%d\n", optarr[0], optarr[1], |
---|
| 832 | optarr[2]); |
---|
| 833 | |
---|
| 834 | /* Now, the real work */ |
---|
| 835 | errno = 0; |
---|
| 836 | status = stat(filestr, &fdstat); |
---|
| 837 | if (status == 0) { |
---|
| 838 | if (S_ISDIR(fdstat.st_mode)) { |
---|
| 839 | ROSH_DEBUG("PATH '%s' is a directory\n", filestr); |
---|
| 840 | if ((d = opendir(filestr))) { |
---|
| 841 | rosh_ls_arg_dir(filestr, d, optarr); |
---|
| 842 | closedir(d); |
---|
| 843 | } else { |
---|
| 844 | rosh_error(errno, "ls", filestr); |
---|
| 845 | errno = 0; |
---|
| 846 | } |
---|
| 847 | } else { |
---|
| 848 | de.d_ino = rosh_ls_d_ino(&fdstat); |
---|
| 849 | de.d_type = (IFTODT(fdstat.st_mode)); |
---|
| 850 | strcpy(de.d_name, filestr); |
---|
| 851 | if (S_ISREG(fdstat.st_mode)) { |
---|
| 852 | ROSH_DEBUG("PATH '%s' is a regular file\n", filestr); |
---|
| 853 | } else { |
---|
| 854 | ROSH_DEBUG("PATH '%s' is some other file\n", filestr); |
---|
| 855 | } |
---|
| 856 | rosh_ls_arg_dir_de(NULL, &de, optarr); |
---|
| 857 | /* if (ifilstr[0] == SEP) |
---|
| 858 | rosh_ls_arg_dir_de(NULL, &de, optarr); |
---|
| 859 | else |
---|
| 860 | rosh_ls_arg_dir_de(pwdstr, &de, optarr);*/ |
---|
| 861 | } |
---|
| 862 | } else { |
---|
| 863 | rosh_error(errno, "ls", filestr); |
---|
| 864 | errno = 0; |
---|
| 865 | } |
---|
| 866 | return; |
---|
| 867 | } /* rosh_ls_arg */ |
---|
| 868 | |
---|
| 869 | /* Parse options that may be present in the cmdstr |
---|
| 870 | * filestr Possible option string to parse |
---|
| 871 | * optstr Current options |
---|
| 872 | * returns 1 if filestr does not begin with '-' else 0 |
---|
| 873 | */ |
---|
| 874 | int rosh_ls_parse_opt(const char *filestr, char *optstr) |
---|
| 875 | { |
---|
| 876 | int ret; |
---|
| 877 | if (filestr[0] == '-') { |
---|
| 878 | ret = 0; |
---|
| 879 | if (optstr) |
---|
| 880 | strcat(optstr, filestr + 1); |
---|
| 881 | } else { |
---|
| 882 | ret = 1; |
---|
| 883 | } |
---|
| 884 | ROSH_DEBUG("ParseOpt: '%s'\n\topt: '%s'\n\tret: %d\n", filestr, optstr, |
---|
| 885 | ret); |
---|
| 886 | return ret; |
---|
| 887 | } /* rosh_ls_parse_opt */ |
---|
| 888 | |
---|
| 889 | /* List Directory |
---|
| 890 | * argc Argument count |
---|
| 891 | * argv Argument values |
---|
| 892 | */ |
---|
| 893 | void rosh_ls(int argc, char *argv[]) |
---|
| 894 | { |
---|
| 895 | int optarr[3]; |
---|
| 896 | int i; |
---|
| 897 | |
---|
| 898 | rosh_ls_arg_opt(argc, argv, optarr); |
---|
| 899 | ROSH_DEBUG2("In ls()\n"); |
---|
| 900 | ROSH_DEBUG2_ARGV_V(argc, argv); |
---|
| 901 | #ifdef DO_DEBUG |
---|
| 902 | optarr[0] = 2; |
---|
| 903 | #endif /* DO_DEBUG */ |
---|
| 904 | ROSH_DEBUG2(" argc=%d; optind=%d\n", argc, optind); |
---|
| 905 | if (optind >= argc) |
---|
| 906 | rosh_ls_arg(".", optarr); |
---|
| 907 | for (i = optind; i < argc; i++) { |
---|
| 908 | rosh_ls_arg(argv[i], optarr); |
---|
| 909 | } |
---|
| 910 | } /* rosh_ls */ |
---|
| 911 | |
---|
| 912 | /* Simple directory listing; calls rosh_ls() |
---|
| 913 | * argc Argument count |
---|
| 914 | * argv Argument values |
---|
| 915 | */ |
---|
| 916 | void rosh_dir(int argc, char *argv[]) |
---|
| 917 | { |
---|
| 918 | ROSH_DEBUG(" dir implemented as ls\n"); |
---|
| 919 | rosh_ls(argc, argv); |
---|
| 920 | } /* rosh_dir */ |
---|
| 921 | |
---|
| 922 | /* Page through a buffer string |
---|
| 923 | * buf Buffer to page through |
---|
| 924 | */ |
---|
| 925 | void rosh_more_buf(char *buf, int buflen, int rows, int cols, char *scrbuf) |
---|
| 926 | { |
---|
| 927 | char *bufp, *bufeol, *bufeol2; /* Pointer to current and next |
---|
| 928 | end-of-line position in buffer */ |
---|
| 929 | int bufpos, bufcnt; /* current position, count characters */ |
---|
| 930 | int inc; |
---|
| 931 | int i, numln; /* Index, Number of lines */ |
---|
| 932 | int elpl; /* Extra lines per line read */ |
---|
| 933 | |
---|
| 934 | (void)cols; |
---|
| 935 | |
---|
| 936 | bufpos = 0; |
---|
| 937 | bufp = buf + bufpos; |
---|
| 938 | bufeol = bufp; |
---|
| 939 | numln = rows - 1; |
---|
| 940 | ROSH_DEBUG("--(%d)\n", buflen); |
---|
| 941 | while (bufpos < buflen) { |
---|
| 942 | for (i = 0; i < numln; i++) { |
---|
| 943 | bufeol2 = strchr(bufeol, '\n'); |
---|
| 944 | if (bufeol2 == NULL) { |
---|
| 945 | bufeol = buf + buflen; |
---|
| 946 | i = numln; |
---|
| 947 | } else { |
---|
| 948 | elpl = ((bufeol2 - bufeol - 1) / cols); |
---|
| 949 | if (elpl < 0) |
---|
| 950 | elpl = 0; |
---|
| 951 | i += elpl; |
---|
| 952 | ROSH_DEBUG2(" %d/%d ", elpl, i+1); |
---|
| 953 | /* If this will not push too much, use it */ |
---|
| 954 | /* but if it's the first line, use it */ |
---|
| 955 | /* //HERE: We should probably snip the line off */ |
---|
| 956 | if ((i < numln) || (i == elpl)) |
---|
| 957 | bufeol = bufeol2 + 1; |
---|
| 958 | } |
---|
| 959 | } |
---|
| 960 | ROSH_DEBUG2("\n"); |
---|
| 961 | bufcnt = bufeol - bufp; |
---|
| 962 | printf("--(%d/%d @%d)\n", bufcnt, buflen, bufpos); |
---|
| 963 | memcpy(scrbuf, bufp, bufcnt); |
---|
| 964 | scrbuf[bufcnt] = 0; |
---|
| 965 | printf("%s", scrbuf); |
---|
| 966 | bufp = bufeol; |
---|
| 967 | bufpos += bufcnt; |
---|
| 968 | if (bufpos == buflen) |
---|
| 969 | break; |
---|
| 970 | inc = rosh_getkey(); |
---|
| 971 | numln = 1; |
---|
| 972 | switch (inc) { |
---|
| 973 | case KEY_CTRL('c'): |
---|
| 974 | case 'q': |
---|
| 975 | case 'Q': |
---|
| 976 | bufpos = buflen; |
---|
| 977 | break; |
---|
| 978 | case ' ': |
---|
| 979 | numln = rows - 1; |
---|
| 980 | } |
---|
| 981 | } |
---|
| 982 | } /* rosh_more_buf */ |
---|
| 983 | |
---|
| 984 | /* Page through a single file using the open file stream |
---|
| 985 | * fd File Descriptor |
---|
| 986 | */ |
---|
| 987 | void rosh_more_fd(int fd, int rows, int cols, char *scrbuf) |
---|
| 988 | { |
---|
| 989 | struct stat fdstat; |
---|
| 990 | char *buf; |
---|
| 991 | int bufpos; |
---|
| 992 | int numrd; |
---|
| 993 | FILE *f; |
---|
| 994 | |
---|
| 995 | fstat(fd, &fdstat); |
---|
| 996 | if (S_ISREG(fdstat.st_mode)) { |
---|
| 997 | buf = malloc((int)fdstat.st_size); |
---|
| 998 | if (buf != NULL) { |
---|
| 999 | f = fdopen(fd, "r"); |
---|
| 1000 | bufpos = 0; |
---|
| 1001 | numrd = fread(buf, 1, (int)fdstat.st_size, f); |
---|
| 1002 | while (numrd > 0) { |
---|
| 1003 | bufpos += numrd; |
---|
| 1004 | numrd = fread(buf + bufpos, 1, |
---|
| 1005 | ((int)fdstat.st_size - bufpos), f); |
---|
| 1006 | } |
---|
| 1007 | fclose(f); |
---|
| 1008 | rosh_more_buf(buf, bufpos, rows, cols, scrbuf); |
---|
| 1009 | } |
---|
| 1010 | } else { |
---|
| 1011 | } |
---|
| 1012 | |
---|
| 1013 | } /* rosh_more_fd */ |
---|
| 1014 | |
---|
| 1015 | /* Page through a file like the more command |
---|
| 1016 | * argc Argument Count |
---|
| 1017 | * argv Argument Values |
---|
| 1018 | */ |
---|
| 1019 | void rosh_more(int argc, char *argv[]) |
---|
| 1020 | { |
---|
| 1021 | int fd, i; |
---|
| 1022 | /* char filestr[ROSH_PATH_SZ]; |
---|
| 1023 | int cmdpos;*/ |
---|
| 1024 | int rows, cols; |
---|
| 1025 | char *scrbuf; |
---|
| 1026 | int ret; |
---|
| 1027 | |
---|
| 1028 | ROSH_DEBUG_ARGV_V(argc, argv); |
---|
| 1029 | ret = getscreensize(1, &rows, &cols); |
---|
| 1030 | if (ret) { |
---|
| 1031 | ROSH_DEBUG("getscreensize() fail(%d); fall back\n", ret); |
---|
| 1032 | ROSH_DEBUG("\tROWS='%d'\tCOLS='%d'\n", rows, cols); |
---|
| 1033 | /* If either fail, go under normal size, just in case */ |
---|
| 1034 | if (!rows) |
---|
| 1035 | rows = 20; |
---|
| 1036 | if (!cols) |
---|
| 1037 | cols = 75; |
---|
| 1038 | } |
---|
| 1039 | ROSH_DEBUG("\tUSE ROWS='%d'\tCOLS='%d'\n", rows, cols); |
---|
| 1040 | /* 32 bit align beginning of row and over allocate */ |
---|
| 1041 | scrbuf = malloc(rows * ((cols+3)&(INT_MAX - 3))); |
---|
| 1042 | if (!scrbuf) |
---|
| 1043 | return; |
---|
| 1044 | |
---|
| 1045 | if (argc) { |
---|
| 1046 | /* There is no need to mess up the console if we don't have a |
---|
| 1047 | file */ |
---|
| 1048 | rosh_console_raw(); |
---|
| 1049 | for (i = 0; i < argc; i++) { |
---|
| 1050 | printf("--File = '%s'\n", argv[i]); |
---|
| 1051 | errno = 0; |
---|
| 1052 | fd = open(argv[i], O_RDONLY); |
---|
| 1053 | if (fd != -1) { |
---|
| 1054 | rosh_more_fd(fd, rows, cols, scrbuf); |
---|
| 1055 | close(fd); |
---|
| 1056 | } else { |
---|
| 1057 | rosh_error(errno, "more", argv[i]); |
---|
| 1058 | errno = 0; |
---|
| 1059 | } |
---|
| 1060 | } |
---|
| 1061 | rosh_console_std(); |
---|
| 1062 | } |
---|
| 1063 | free(scrbuf); |
---|
| 1064 | } /* rosh_more */ |
---|
| 1065 | |
---|
| 1066 | /* Page a file with rewind |
---|
| 1067 | * argc Argument Count |
---|
| 1068 | * argv Argument Values |
---|
| 1069 | */ |
---|
| 1070 | void rosh_less(int argc, char *argv[]) |
---|
| 1071 | { |
---|
| 1072 | printf(" less implemented as more (for now)\n"); |
---|
| 1073 | rosh_more(argc, argv); |
---|
| 1074 | } /* rosh_less */ |
---|
| 1075 | |
---|
| 1076 | /* Show PWD |
---|
| 1077 | */ |
---|
| 1078 | void rosh_pwd(void) |
---|
| 1079 | { |
---|
| 1080 | char pwdstr[ROSH_PATH_SZ]; |
---|
| 1081 | errno = 0; |
---|
| 1082 | if (getcwd(pwdstr, ROSH_PATH_SZ)) { |
---|
| 1083 | printf("%s\n", pwdstr); |
---|
| 1084 | } else { |
---|
| 1085 | rosh_error(errno, "pwd", ""); |
---|
| 1086 | errno = 0; |
---|
| 1087 | } |
---|
| 1088 | } /* rosh_pwd */ |
---|
| 1089 | |
---|
| 1090 | /* Reboot; use warm reboot if one of certain options set |
---|
| 1091 | * argc Argument count |
---|
| 1092 | * argv Argument values |
---|
| 1093 | */ |
---|
| 1094 | void rosh_reboot(int argc, char *argv[]) |
---|
| 1095 | { |
---|
| 1096 | int rtype = 0; |
---|
| 1097 | if (argc) { |
---|
| 1098 | /* For now, just use the first */ |
---|
| 1099 | switch (argv[0][0]) { |
---|
| 1100 | case '1': |
---|
| 1101 | case 's': |
---|
| 1102 | case 'w': |
---|
| 1103 | rtype = 1; |
---|
| 1104 | break; |
---|
| 1105 | case '-': |
---|
| 1106 | switch (argv[0][1]) { |
---|
| 1107 | case '1': |
---|
| 1108 | case 's': |
---|
| 1109 | case 'w': |
---|
| 1110 | rtype = 1; |
---|
| 1111 | break; |
---|
| 1112 | } |
---|
| 1113 | break; |
---|
| 1114 | } |
---|
| 1115 | } |
---|
| 1116 | syslinux_reboot(rtype); |
---|
| 1117 | } /* rosh_reboot */ |
---|
| 1118 | |
---|
| 1119 | /* Run a boot string, calling syslinux_run_command |
---|
| 1120 | * argc Argument count |
---|
| 1121 | * argv Argument values |
---|
| 1122 | */ |
---|
| 1123 | void rosh_run(int argc, char *argv[]) |
---|
| 1124 | { |
---|
| 1125 | char cmdstr[ROSH_CMD_SZ]; |
---|
| 1126 | int len; |
---|
| 1127 | |
---|
| 1128 | len = rosh_argcat(cmdstr, ROSH_CMD_SZ, argc, argv, 0); |
---|
| 1129 | if (len) { |
---|
| 1130 | printf("--run: '%s'\n", cmdstr); |
---|
| 1131 | syslinux_run_command(cmdstr); |
---|
| 1132 | } else { |
---|
| 1133 | printf(APP_NAME ":run: No arguments\n"); |
---|
| 1134 | } |
---|
| 1135 | } /* rosh_run */ |
---|
| 1136 | |
---|
| 1137 | /* Process an argc/argv pair and call handling function |
---|
| 1138 | * argc Argument count |
---|
| 1139 | * argv Argument values |
---|
| 1140 | * ipwdstr Initial Present Working Directory string |
---|
| 1141 | * returns Whether to exit prompt |
---|
| 1142 | */ |
---|
| 1143 | char rosh_command(int argc, char *argv[], const char *ipwdstr) |
---|
| 1144 | { |
---|
| 1145 | char do_exit = false; |
---|
| 1146 | int tlen; |
---|
| 1147 | tlen = strlen(argv[0]); |
---|
| 1148 | ROSH_DEBUG_ARGV_V(argc, argv); |
---|
| 1149 | switch (argv[0][0]) { |
---|
| 1150 | case 'e': |
---|
| 1151 | case 'E': |
---|
| 1152 | case 'q': |
---|
| 1153 | case 'Q': |
---|
| 1154 | switch (argv[0][1]) { |
---|
| 1155 | case 0: |
---|
| 1156 | case 'x': |
---|
| 1157 | case 'X': |
---|
| 1158 | case 'u': |
---|
| 1159 | case 'U': |
---|
| 1160 | if ((strncasecmp("exit", argv[0], tlen) == 0) || |
---|
| 1161 | (strncasecmp("quit", argv[0], tlen) == 0)) |
---|
| 1162 | do_exit = true; |
---|
| 1163 | else |
---|
| 1164 | rosh_help(1, argv[0]); |
---|
| 1165 | break; |
---|
| 1166 | case 'c': |
---|
| 1167 | case 'C': |
---|
| 1168 | if (strncasecmp("echo", argv[0], tlen) == 0) |
---|
| 1169 | rosh_pr_argv(argc - 1, &argv[1]); |
---|
| 1170 | else |
---|
| 1171 | rosh_help(1, argv[0]); |
---|
| 1172 | break; |
---|
| 1173 | default: |
---|
| 1174 | rosh_help(1, argv[0]); |
---|
| 1175 | } |
---|
| 1176 | break; |
---|
| 1177 | case 'c': |
---|
| 1178 | case 'C': /* run 'cd' 'cat' 'cfg' */ |
---|
| 1179 | switch (argv[0][1]) { |
---|
| 1180 | case 'a': |
---|
| 1181 | case 'A': |
---|
| 1182 | if (strncasecmp("cat", argv[0], tlen) == 0) |
---|
| 1183 | rosh_cat(argc - 1, &argv[1]); |
---|
| 1184 | else |
---|
| 1185 | rosh_help(1, argv[0]); |
---|
| 1186 | break; |
---|
| 1187 | case 'd': |
---|
| 1188 | case 'D': |
---|
| 1189 | if (strncasecmp("cd", argv[0], tlen) == 0) |
---|
| 1190 | rosh_cd(argc, argv, ipwdstr); |
---|
| 1191 | else |
---|
| 1192 | rosh_help(1, argv[0]); |
---|
| 1193 | break; |
---|
| 1194 | case 'f': |
---|
| 1195 | case 'F': |
---|
| 1196 | if (strncasecmp("cfg", argv[0], tlen) == 0) |
---|
| 1197 | rosh_cfg(); |
---|
| 1198 | else |
---|
| 1199 | rosh_help(1, argv[0]); |
---|
| 1200 | break; |
---|
| 1201 | default: |
---|
| 1202 | rosh_help(1, argv[0]); |
---|
| 1203 | } |
---|
| 1204 | break; |
---|
| 1205 | case 'd': |
---|
| 1206 | case 'D': /* run 'dir' */ |
---|
| 1207 | if (strncasecmp("dir", argv[0], tlen) == 0) |
---|
| 1208 | rosh_dir(argc - 1, &argv[1]); |
---|
| 1209 | else |
---|
| 1210 | rosh_help(1, argv[0]); |
---|
| 1211 | break; |
---|
| 1212 | case 'h': |
---|
| 1213 | case 'H': |
---|
| 1214 | case '?': |
---|
| 1215 | if ((strncasecmp("help", argv[0], tlen) == 0) || (tlen == 1)) |
---|
| 1216 | rosh_help(2, argv[1]); |
---|
| 1217 | else |
---|
| 1218 | rosh_help(1, NULL); |
---|
| 1219 | break; |
---|
| 1220 | case 'l': |
---|
| 1221 | case 'L': /* run 'ls' 'less' */ |
---|
| 1222 | switch (argv[0][1]) { |
---|
| 1223 | case 0: |
---|
| 1224 | case 's': |
---|
| 1225 | case 'S': |
---|
| 1226 | if (strncasecmp("ls", argv[0], tlen) == 0) |
---|
| 1227 | rosh_ls(argc, argv); |
---|
| 1228 | else |
---|
| 1229 | rosh_help(1, argv[0]); |
---|
| 1230 | break; |
---|
| 1231 | case 'e': |
---|
| 1232 | case 'E': |
---|
| 1233 | if (strncasecmp("less", argv[0], tlen) == 0) |
---|
| 1234 | rosh_less(argc - 1, &argv[1]); |
---|
| 1235 | else |
---|
| 1236 | rosh_help(1, argv[0]); |
---|
| 1237 | break; |
---|
| 1238 | default: |
---|
| 1239 | rosh_help(1, argv[0]); |
---|
| 1240 | } |
---|
| 1241 | break; |
---|
| 1242 | case 'm': |
---|
| 1243 | case 'M': |
---|
| 1244 | switch (argv[0][1]) { |
---|
| 1245 | case 'a': |
---|
| 1246 | case 'A': |
---|
| 1247 | if (strncasecmp("man", argv[0], tlen) == 0) |
---|
| 1248 | rosh_help(2, argv[1]); |
---|
| 1249 | else |
---|
| 1250 | rosh_help(1, argv[0]); |
---|
| 1251 | break; |
---|
| 1252 | case 'o': |
---|
| 1253 | case 'O': |
---|
| 1254 | if (strncasecmp("more", argv[0], tlen) == 0) |
---|
| 1255 | rosh_more(argc - 1, &argv[1]); |
---|
| 1256 | else |
---|
| 1257 | rosh_help(1, argv[0]); |
---|
| 1258 | break; |
---|
| 1259 | default: |
---|
| 1260 | rosh_help(1, argv[0]); |
---|
| 1261 | } |
---|
| 1262 | break; |
---|
| 1263 | case 'p': |
---|
| 1264 | case 'P': /* run 'pwd' */ |
---|
| 1265 | if (strncasecmp("pwd", argv[0], tlen) == 0) |
---|
| 1266 | rosh_pwd(); |
---|
| 1267 | else |
---|
| 1268 | rosh_help(1, argv[0]); |
---|
| 1269 | break; |
---|
| 1270 | case 'r': |
---|
| 1271 | case 'R': /* run 'run' */ |
---|
| 1272 | switch (argv[0][1]) { |
---|
| 1273 | case 0: |
---|
| 1274 | case 'e': |
---|
| 1275 | case 'E': |
---|
| 1276 | if (strncasecmp("reboot", argv[0], tlen) == 0) |
---|
| 1277 | rosh_reboot(argc - 1, &argv[1]); |
---|
| 1278 | else |
---|
| 1279 | rosh_help(1, argv[0]); |
---|
| 1280 | break; |
---|
| 1281 | case 'u': |
---|
| 1282 | case 'U': |
---|
| 1283 | if (strncasecmp("run", argv[0], tlen) == 0) |
---|
| 1284 | rosh_run(argc - 1, &argv[1]); |
---|
| 1285 | else |
---|
| 1286 | rosh_help(1, argv[0]); |
---|
| 1287 | break; |
---|
| 1288 | default: |
---|
| 1289 | rosh_help(1, argv[0]); |
---|
| 1290 | } |
---|
| 1291 | break; |
---|
| 1292 | case 'v': |
---|
| 1293 | case 'V': |
---|
| 1294 | if (strncasecmp("version", argv[0], tlen) == 0) |
---|
| 1295 | rosh_version(1); |
---|
| 1296 | else |
---|
| 1297 | rosh_help(1, argv[0]); |
---|
| 1298 | break; |
---|
| 1299 | case 0: |
---|
| 1300 | case '\n': |
---|
| 1301 | break; |
---|
| 1302 | default: |
---|
| 1303 | rosh_help(1, argv[0]); |
---|
| 1304 | } /* switch(argv[0][0]) */ |
---|
| 1305 | return do_exit; |
---|
| 1306 | } /* rosh_command */ |
---|
| 1307 | |
---|
| 1308 | /* Process the prompt for commands as read from stdin and call rosh_command |
---|
| 1309 | * to process command line string |
---|
| 1310 | * icmdstr Initial command line string |
---|
| 1311 | * returns Exit status |
---|
| 1312 | */ |
---|
| 1313 | int rosh_prompt(int iargc, char *iargv[]) |
---|
| 1314 | { |
---|
| 1315 | int rv; |
---|
| 1316 | char cmdstr[ROSH_CMD_SZ]; |
---|
| 1317 | char ipwdstr[ROSH_PATH_SZ]; |
---|
| 1318 | char do_exit; |
---|
| 1319 | char **argv; |
---|
| 1320 | int argc; |
---|
| 1321 | |
---|
| 1322 | rv = 0; |
---|
| 1323 | do_exit = false; |
---|
| 1324 | if (!getcwd(ipwdstr, ROSH_PATH_SZ)) |
---|
| 1325 | strcpy(ipwdstr, "./"); |
---|
| 1326 | if (iargc > 1) |
---|
| 1327 | do_exit = rosh_command(iargc - 1, &iargv[1], ipwdstr); |
---|
| 1328 | while (!(do_exit)) { |
---|
| 1329 | /* Extra preceeding newline */ |
---|
| 1330 | printf("\nrosh: "); |
---|
| 1331 | /* Read a line from console */ |
---|
| 1332 | if (fgets(cmdstr, ROSH_CMD_SZ, stdin)) { |
---|
| 1333 | argc = rosh_str2argv(&argv, cmdstr); |
---|
| 1334 | do_exit = rosh_command(argc, argv, ipwdstr); |
---|
| 1335 | rosh_free_argv(&argv); |
---|
| 1336 | } else { |
---|
| 1337 | do_exit = false; |
---|
| 1338 | } |
---|
| 1339 | } |
---|
| 1340 | return rv; |
---|
| 1341 | } |
---|
| 1342 | |
---|
| 1343 | int main(int argc, char *argv[]) |
---|
| 1344 | { |
---|
| 1345 | int rv; |
---|
| 1346 | |
---|
| 1347 | /* Initialization */ |
---|
| 1348 | rv = 0; |
---|
| 1349 | rosh_console_std(); |
---|
| 1350 | if (argc == 1) { |
---|
| 1351 | rosh_version(0); |
---|
| 1352 | print_beta(); |
---|
| 1353 | } else { |
---|
| 1354 | #ifdef DO_DEBUG |
---|
| 1355 | char cmdstr[ROSH_CMD_SZ]; |
---|
| 1356 | rosh_argcat(cmdstr, ROSH_CMD_SZ, argc, argv, 1); |
---|
| 1357 | ROSH_DEBUG("arg='%s'\n", cmdstr); |
---|
| 1358 | #endif |
---|
| 1359 | } |
---|
| 1360 | rv = rosh_prompt(argc, argv); |
---|
| 1361 | printf("--Exiting '" APP_NAME "'\n"); |
---|
| 1362 | return rv; |
---|
| 1363 | } |
---|