62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software
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* is freely granted, provided that this notice is preserved.
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*/
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#include <errno.h>
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#include <sys/types.h>
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#include <string.h>
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#include <stdlib.h>
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#include <argz.h>
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#include <envz.h>
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error_t
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_DEFUN (envz_merge, (envz, envz_len, envz2, envz2_len, override),
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char **envz _AND
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size_t *envz_len _AND
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const char *envz2 _AND
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size_t envz2_len _AND
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int override)
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{
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char *entry = NULL;
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char *name_str = NULL;
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char *val_str = NULL;
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char *name_iter = NULL;
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int retval = 0;
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while((entry = argz_next((char *)envz2, envz2_len, entry)) && !retval)
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{
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if (!override)
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{
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name_str = strdup (entry);
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name_iter = strchr(name_str, '=');
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if(name_iter)
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*name_iter = '\0';
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if(!envz_entry(*envz, *envz_len, name_str))
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{
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retval = argz_add(envz, envz_len, entry);
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}
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free(name_str);
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}
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else
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{
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name_str = strdup (entry);
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name_iter = strchr(name_str, '=');
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if(name_iter)
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{
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*name_iter = '\0';
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val_str = name_iter + 1;
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}
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else
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{
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val_str = NULL;
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}
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retval = envz_add(envz, envz_len, name_str, val_str);
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}
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}
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return retval;
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}
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