| 1 | /* ----------------------------------------------------------------------- * |
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| 2 | * |
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| 3 | * Copyright 2008-2009 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.h |
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| 15 | * |
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| 16 | * Read-Only shell; Header |
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| 17 | */ |
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| 18 | |
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| 19 | /* |
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| 20 | * History |
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| 21 | * b034 Improve debug functions to simpler code |
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| 22 | * b021 Move much PreProcessing stuff to rosh.h |
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| 23 | * b018 Create rosh_debug() macro |
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| 24 | * b012 Version of rosh.c at time of creating this file. |
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| 25 | */ |
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| 26 | |
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| 27 | #ifndef ROSH_H |
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| 28 | #define ROSH_H |
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| 29 | |
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| 30 | #include <stdio.h> |
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| 31 | #include <stdlib.h> |
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| 32 | #include <stdbool.h> /* macro: true false */ |
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| 33 | #include <string.h> /* strcpy() strlen() memcpy() strchr() */ |
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| 34 | #include <sys/types.h> |
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| 35 | #include <limits.h> |
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| 36 | #include <sys/stat.h> /* fstat() */ |
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| 37 | #include <fcntl.h> /* open(); open mode macros */ |
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| 38 | #include <dirent.h> /* fdopendir() opendir() readdir() closedir() DIR */ |
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| 39 | #include <unistd.h> /* getcwd() getopt() */ |
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| 40 | #include <errno.h> /* errno; error macros */ |
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| 41 | #include <netinet/in.h> /* For htonl/ntohl/htons/ntohs */ |
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| 42 | #include <ctype.h> /* isspace() */ |
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| 43 | |
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| 44 | #include <getkey.h> |
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| 45 | #include <consoles.h> /* console_ansi_raw() console_ansi_std() */ |
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| 46 | // #include <getopt.h> /* getopt_long() */ |
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| 47 | |
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| 48 | #ifdef DO_DEBUG |
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| 49 | # define ROSH_DEBUG printf |
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| 50 | # define ROSH_DEBUG_ARGV_V rosh_pr_argv_v |
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| 51 | /* define ROSH_DEBUG(f, ...) printf (f, ## __VA_ARGS__) */ |
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| 52 | # ifdef DO_DEBUG2 |
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| 53 | # define ROSH_DEBUG2 printf |
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| 54 | # define ROSH_DEBUG2_ARGV_V rosh_pr_argv_v |
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| 55 | # else /* DO_DEBUG2 */ |
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| 56 | /* This forces a format argument into the function call */ |
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| 57 | # define ROSH_DEBUG2(f, ...) ((void)0) |
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| 58 | # define ROSH_DEBUG2_ARGV_V(argc, argv) ((void)0) |
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| 59 | # endif /* DO_DEBUG2 */ |
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| 60 | #else /* DO_DEBUG */ |
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| 61 | # define ROSH_DEBUG(f, ...) ((void)0) |
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| 62 | # define ROSH_DEBUG_ARGV_V(argc, argv) ((void)0) |
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| 63 | # define ROSH_DEBUG2(f, ...) ((void)0) |
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| 64 | # define ROSH_DEBUG2_ARGV_V(argc, argv) ((void)0) |
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| 65 | #endif /* DO_DEBUG */ |
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| 66 | #define ROSH_DEBUG2_STAT(f, ...) ((void)0) |
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| 67 | // #define ROSH_DEBUG2_STAT ROSH_DEBUG2 |
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| 68 | |
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| 69 | #ifdef __COM32__ |
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| 70 | #define ROSH_IS_COM32 1 |
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| 71 | #include <console.h> /* openconsole() */ |
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| 72 | #include <syslinux/config.h> /* Has info on the SYSLINUX variant */ |
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| 73 | #include <syslinux/boot.h> /* syslinux_run_command() */ |
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| 74 | #include <syslinux/reboot.h> |
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| 75 | #define ROSH_COM32(f, ...) printf (f, ## __VA_ARGS__) |
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| 76 | #define rosh_console_std() console_ansi_std() |
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| 77 | #define rosh_console_raw() console_ansi_raw() |
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| 78 | |
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| 79 | int stat(const char *pathname, struct stat *buf) |
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| 80 | { |
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| 81 | int fd, status, ret = -1; |
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| 82 | DIR *d; |
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| 83 | |
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| 84 | ROSH_DEBUG2_STAT("stat:opendir(%s) ", pathname); |
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| 85 | d = opendir(pathname); |
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| 86 | if (d != NULL) { |
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| 87 | ROSH_DEBUG2_STAT("stat:closedir() "); |
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| 88 | closedir(d); |
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| 89 | ret = 0; |
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| 90 | buf->st_mode = S_IFDIR | 0555; |
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| 91 | buf->st_size = 0; |
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| 92 | } else if ((errno == 0) || (errno == ENOENT) || (errno == ENOTDIR)) { |
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| 93 | ROSH_DEBUG2_STAT("(%d)stat:open() ", errno); |
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| 94 | fd = open(pathname, O_RDONLY); |
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| 95 | if (fd != -1) { |
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| 96 | ROSH_DEBUG2_STAT("(%d)stat:fstat() ", fd); |
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| 97 | status = fstat(fd, buf); |
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| 98 | (void)status; |
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| 99 | ROSH_DEBUG2_STAT("stat:close() "); |
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| 100 | close(fd); |
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| 101 | ret = 0; |
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| 102 | } |
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| 103 | } |
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| 104 | return ret; |
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| 105 | } |
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| 106 | |
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| 107 | int rosh_get_env_ver(char *dest, size_t n) |
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| 108 | { |
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| 109 | const struct syslinux_version *slv = syslinux_version(); |
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| 110 | strncpy(dest, slv->version_string, n); |
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| 111 | return 0; |
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| 112 | } |
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| 113 | |
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| 114 | #else |
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| 115 | # include <termios.h> |
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| 116 | # include <sys/ioctl.h> |
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| 117 | # include <sys/utsname.h> |
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| 118 | # define ROSH_IS_COM32 0 |
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| 119 | |
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| 120 | static inline char *syslinux_config_file(void) |
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| 121 | { |
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| 122 | return ""; |
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| 123 | } |
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| 124 | |
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| 125 | int rosh_get_env_ver(char *dest, size_t n) |
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| 126 | { |
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| 127 | int ret, len; |
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| 128 | struct utsname env; |
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| 129 | ret= uname(&env); |
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| 130 | if (ret >= 0) { |
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| 131 | strncpy(dest, env.sysname, n); |
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| 132 | len = strlen(dest); |
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| 133 | strncpy(dest + len, " ", (n - len)); |
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| 134 | len = strlen(dest); |
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| 135 | strncpy(dest + len, env.release, (n - len)); |
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| 136 | } |
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| 137 | return ret; |
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| 138 | } |
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| 139 | |
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| 140 | static inline int getscreensize(int fd, int *rows, int *cols) |
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| 141 | { |
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| 142 | char *str; |
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| 143 | int rv; |
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| 144 | struct winsize ws; |
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| 145 | if (rows) |
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| 146 | *rows = 0; |
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| 147 | if (cols) |
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| 148 | *cols = 0; |
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| 149 | str = NULL; |
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| 150 | if (fd == 1) { |
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| 151 | ioctl(0, TIOCGWINSZ, &ws); |
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| 152 | if (rows) |
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| 153 | *rows = ws.ws_row; |
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| 154 | if (cols) |
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| 155 | *cols = ws.ws_col; |
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| 156 | if (rows && !*rows) { |
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| 157 | str = getenv("LINES"); |
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| 158 | if (str) |
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| 159 | *rows = atoi(str); |
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| 160 | } |
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| 161 | if (cols && !*cols) { |
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| 162 | str = getenv("COLUMNS"); |
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| 163 | if (str) |
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| 164 | *cols = atoi(str); |
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| 165 | } |
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| 166 | } |
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| 167 | if (!rows || !cols) |
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| 168 | rv = -1; |
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| 169 | else if (!*rows || !*cols) |
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| 170 | rv = -2; |
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| 171 | else |
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| 172 | rv = 0; |
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| 173 | return rv; |
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| 174 | } |
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| 175 | |
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| 176 | /* |
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| 177 | * Switches console over to raw input mode. Allows get_key to get just |
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| 178 | * 1 key sequence (without delay or display) |
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| 179 | */ |
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| 180 | void rosh_console_raw(void) |
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| 181 | { |
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| 182 | struct termios tio; |
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| 183 | |
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| 184 | console_ansi_raw(); /* Allows get_key to get just 1 key sequence |
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| 185 | (w/o delay or display */ |
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| 186 | /* Deal with the changes that haven't been replicated to ansiraw.c */ |
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| 187 | tcgetattr(0, &tio); |
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| 188 | tio.c_iflag &= ~IGNCR; |
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| 189 | tcsetattr(0, TCSAFLUSH, &tio); |
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| 190 | } |
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| 191 | |
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| 192 | /* |
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| 193 | * Switches back to standard getline mode. |
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| 194 | */ |
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| 195 | void rosh_console_std(void) |
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| 196 | { |
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| 197 | struct termios tio; |
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| 198 | |
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| 199 | console_ansi_std(); |
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| 200 | tcgetattr(0, &tio); |
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| 201 | tio.c_iflag |= ICRNL; |
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| 202 | tio.c_iflag &= ~IGNCR; |
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| 203 | tcsetattr(0, TCSANOW, &tio); |
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| 204 | } |
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| 205 | |
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| 206 | void syslinux_reboot(int warm) |
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| 207 | { |
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| 208 | printf("Test Reboot(%d)\n", warm); |
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| 209 | } |
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| 210 | |
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| 211 | #define ROSH_COM32(f, ...) ((void)0) |
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| 212 | #define syslinux_run_command(f) ((void)0) |
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| 213 | #endif /* __COM32__ */ |
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| 214 | |
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| 215 | #define SEP '/' |
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| 216 | |
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| 217 | /* Size of buffer string */ |
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| 218 | #define ROSH_BUF_SZ 16384 |
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| 219 | /* Size of screen output buffer (80*40) //HERE */ |
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| 220 | #define ROSH_SBUF_SZ ((80 + 2) * 40) |
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| 221 | |
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| 222 | /* Size of command buffer string */ |
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| 223 | #ifdef MAX_CMDLINE_LEN |
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| 224 | # define ROSH_CMD_SZ MAX_CMDLINE_LEN |
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| 225 | #elif COMMAND_LINE_SIZE |
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| 226 | # define ROSH_CMD_SZ COMMAND_LINE_SIZE |
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| 227 | #else |
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| 228 | # define ROSH_CMD_SZ_LG2 12 |
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| 229 | # define ROSH_CMD_SZ (1 << ROSH_CMD_SZ_LG2) |
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| 230 | #endif /* MAX_CMDLINE_LEN */ |
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| 231 | |
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| 232 | /* Size of path buffer string */ |
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| 233 | #ifdef PATH_MAX |
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| 234 | # define ROSH_PATH_SZ PATH_MAX |
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| 235 | #elif NAME_MAX |
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| 236 | # define ROSH_PATH_SZ NAME_MAX |
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| 237 | #elif FILENAME_MAX |
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| 238 | # define ROSH_PATH_SZ FILENAME_MAX |
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| 239 | #else |
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| 240 | # define ROSH_PATH_SZ_LG2 8 |
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| 241 | # define ROSH_PATH_SZ (1 << ROSH_PATH_SZ_LG2) |
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| 242 | #endif /* PATH_MAX */ |
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| 243 | |
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| 244 | #define ROSH_OPT_SZ 8 |
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| 245 | |
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| 246 | const char rosh_beta_str[] = |
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| 247 | " ROSH is currently beta. Constructive feedback is appreciated"; |
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| 248 | |
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| 249 | const char rosh_cd_norun_str[] = |
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| 250 | " -- cd (Change Directory) not implemented for use with run and exit.\n"; |
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| 251 | |
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| 252 | const char rosh_help_cd_str[] = "cd Change directory\n\ |
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| 253 | with no argument, return to original directory from entry to rosh\n\ |
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| 254 | with one argument, change to that directory"; |
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| 255 | |
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| 256 | const char rosh_help_ls_str[] = "ls List contents of current directory\n\ |
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| 257 | -l Long format\n\ |
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| 258 | -i Inode; print Inode of file\n\ |
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| 259 | -F Classify; Add a 1-character suffix to classify files"; |
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| 260 | |
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| 261 | const char rosh_help_str1[] = |
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| 262 | "Commands: ? cat cd cfg dir exit help less ls man more pwd run quit ver"; |
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| 263 | |
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| 264 | const char rosh_help_str2[] = |
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| 265 | "Commands: (short generally non-ambiguous abreviations are also allowed)\n\ |
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| 266 | h HELP\n ALSO ? help man\n ALSO help <command>\n\ |
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| 267 | cat Concatenate file to console\n cat <file>\n\ |
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| 268 | cd Change to directory <dir>\n cd <dir>\n\ |
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| 269 | less Page a file with rewind\n\ |
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| 270 | ls List contents of current directory\n ls <dir>\n\ |
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| 271 | ALSO l dir\n\ |
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| 272 | more Page a file\n\ |
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| 273 | pwd display Present Working Directory\n\ |
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| 274 | run Run a program/kernel with options\n\ |
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| 275 | r Reboot (if COM32)\n Also reboot\n\ |
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| 276 | exit Exit to previous environment\n ALSO quit"; |
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| 277 | |
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| 278 | const char rosh_help_str_adv[] = "No additional help available for '%s'"; |
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| 279 | |
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| 280 | const char rosh_ls_opt_str[] = "lFi"; |
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| 281 | |
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| 282 | #endif /* Not ROSH_H */ |
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