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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1905 | serge | 1 | /* |
| 2 | compat: Some compatibility functions. Basic standard C stuff, that may barely be above/around C89. |
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| 3 | |||
| 4 | The mpg123 code is determined to keep it's legacy. A legacy of old, old UNIX. |
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| 5 | |||
| 6 | copyright 2007-8 by the mpg123 project - free software under the terms of the LGPL 2.1 |
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| 7 | see COPYING and AUTHORS files in distribution or http://mpg123.org |
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| 8 | initially written by Thomas Orgis |
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| 9 | */ |
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| 10 | |||
| 11 | #include "config.h" |
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| 12 | #include "compat.h" |
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| 13 | |||
| 14 | /* A safe realloc also for very old systems where realloc(NULL, size) returns NULL. */ |
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| 15 | void *safe_realloc(void *ptr, size_t size) |
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| 16 | { |
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| 17 | if(ptr == NULL) return malloc(size); |
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| 18 | else return realloc(ptr, size); |
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| 19 | } |
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| 20 | |||
| 21 | #ifndef HAVE_STRERROR |
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| 22 | const char *strerror(int errnum) |
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| 23 | { |
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| 24 | extern int sys_nerr; |
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| 25 | extern char *sys_errlist[]; |
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| 26 | |||
| 27 | return (errnum < sys_nerr) ? sys_errlist[errnum] : ""; |
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| 28 | } |
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| 29 | #endif |
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| 30 | |||
| 31 | #ifndef HAVE_STRDUP |
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| 32 | char *strdup(const char *src) |
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| 33 | { |
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| 34 | char *dest; |
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| 35 | |||
| 36 | if (!(dest = (char *) malloc(strlen(src)+1))) |
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| 37 | return NULL; |
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| 38 | else |
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| 39 | return strcpy(dest, src); |
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| 40 | } |
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| 41 | #endif |