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[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc1/] [newlib/] [libc/] [argz/] [envz_get.c] - Rev 345
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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 <envz.h> #include "buf_findstr.h" char * _DEFUN (envz_get, (envz, envz_len, name), const char *envz _AND size_t envz_len _AND const char *name) { char *buf_ptr = (char *)envz; size_t buf_len = envz_len; while(buf_len) { if (_buf_findstr(name, &buf_ptr, &buf_len)) { if (*buf_ptr == '=') { buf_ptr++; return (char *)buf_ptr; } else { if (*buf_ptr == '\0') /* NULL entry. */ return NULL; } } } /* No matching entries found. */ return NULL; }