|
Last change
on this file since dd1be7c was
e16e8f2,
checked in by Edwin Eefting <edwin@datux.nl>, 3 years ago
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|
bootstuff
|
-
Property mode set to
100644
|
|
File size:
650 bytes
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| Rev | Line | |
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| [e16e8f2] | 1 | /* |
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| 2 | * fopendev.c |
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| 3 | */ |
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| 4 | |
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| 5 | #include <stdio.h> |
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| 6 | #include <unistd.h> |
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| 7 | #include <fcntl.h> |
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| 8 | |
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| 9 | FILE *fopendev(const struct dev_info * dev, const char *mode) |
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| 10 | { |
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| 11 | int flags = O_RDONLY; |
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| 12 | int plus = 0; |
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| 13 | int fd; |
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| 14 | |
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| 15 | while (*mode) { |
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| 16 | switch (*mode) { |
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| 17 | case 'r': |
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| 18 | flags = O_RDONLY; |
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| 19 | break; |
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| 20 | case 'w': |
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| 21 | flags = O_WRONLY | O_CREAT | O_TRUNC; |
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| 22 | break; |
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| 23 | case 'a': |
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| 24 | flags = O_WRONLY | O_CREAT | O_APPEND; |
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| 25 | break; |
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| 26 | case '+': |
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| 27 | plus = 1; |
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| 28 | break; |
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| 29 | } |
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| 30 | mode++; |
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| 31 | } |
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| 32 | |
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| 33 | if (plus) { |
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| 34 | flags = (flags & ~(O_RDONLY | O_WRONLY)) | O_RDWR; |
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| 35 | } |
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| 36 | |
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| 37 | fd = opendev(file, flags); |
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| 38 | |
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| 39 | if (fd < 0) |
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| 40 | return NULL; |
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| 41 | else |
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| 42 | return fdopen(fd, mode); |
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| 43 | } |
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