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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [argz/] [envz_strip.c] - Rev 307
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/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved. * * Permission to use, copy, modify, and distribute this software * is freely granted, provided that this notice is preserved. */ #include <errno.h> #include <sys/types.h> #include <string.h> #include <stdlib.h> #include <argz.h> #include <envz.h> void _DEFUN (envz_strip, (envz, envz_len), char **envz _AND size_t *envz_len) { char *entry = 0; int len = 0; int null_found = 0; while((entry = argz_next(*envz, *envz_len, entry))) { if(!strchr(entry, '=')) { null_found = 1; len = strlen(entry) + 1; /* Make sure this is not the last entry in envz. If it is, it will be chopped off by the realloc anyway.*/ if(*envz + *envz_len != entry + len - 1) { memmove(entry, entry + len, *envz + *envz_len - entry - len); } *envz_len -= len; } } if(null_found) { *envz = (char *)realloc(*envz, *envz_len); } }
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