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44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/*
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compat: Some compatibility functions (basic memory and string stuff)
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The mpg123 code is determined to keep it's legacy. A legacy of old, old UNIX.
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So anything possibly somewhat advanced should be considered to be put here, with proper #ifdef;-)
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copyright 2007-2016 by the mpg123 project - free software under the terms of the LGPL 2.1
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see COPYING and AUTHORS files in distribution or http://mpg123.org
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initially written by Thomas Orgis, Windows Unicode stuff by JonY.
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*/
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#include "compat.h"
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#include "debug.h"
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/* A safe realloc also for very old systems where realloc(NULL, size) returns NULL. */
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void *safe_realloc(void *ptr, size_t size)
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{
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if(ptr == NULL) return malloc(size);
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else return realloc(ptr, size);
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}
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#ifndef HAVE_STRERROR
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const char *strerror(int errnum)
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{
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extern int sys_nerr;
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extern char *sys_errlist[];
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return (errnum < sys_nerr) ? sys_errlist[errnum] : "";
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}
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#endif
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char* compat_strdup(const char *src)
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{
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char *dest = NULL;
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if(src)
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{
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size_t len;
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len = strlen(src)+1;
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if((dest = malloc(len)))
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memcpy(dest, src, len);
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}
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return dest;
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}
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