39 lines
831 B
C
39 lines
831 B
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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error_t
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argz_insert (char **argz, size_t *argz_len, char *before, const char *entry)
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{
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int len = 0;
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if (before == NULL)
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argz_add(argz, argz_len, entry);
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if (before < *argz || before >= *argz + *argz_len)
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return EINVAL;
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while (before != *argz && before[-1])
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before--;
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len = strlen(entry) + 1;
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if(!(*argz = (char *)realloc(*argz, *argz_len + len)))
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return ENOMEM;
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memmove(before + len, before, *argz + *argz_len - before);
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memcpy(before, entry, len);
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*argz_len += len;
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return 0;
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}
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