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b56d7e7937
* libc/argz/*: New files. * libc/argz/argz_add.c: New file. * libc/argz/argz_add_sep.c: New file. * libc/argz/argz_append.c: New file. * libc/argz/argz_count.c: New file. * libc/argz/argz_create.c: New file. * libc/argz/argz_create_sep.c: New file. * libc/argz/argz_delete.c: New file. * libc/argz/argz_extract.c: New file. * libc/argz/argz_insert.c: New file. * libc/argz/argz_next.c: New file. * libc/argz/argz_replace.c: New file. * libc/argz/argz_stringify.c: New file. * libc/argz/buf_findstr.c: New file. * libc/argz/envz_add.c: New file. * libc/argz/envz_entry.c: New file. * libc/argz/envz_get.c: New file. * libc/argz/envz_merge.c: New file. * libc/argz/envz_remove.c: New file. * libc/argz/envz_strip.c: New file. * libc/include/argz.h: New file. * libc/include/envz.h: New file. * Makefile.am (LIBC_OBJECTLISTS): Add libc/argz/objectlist.awk.in. * libc/Makefile.am (SUBDIRS): Add argz. (SUBLIBS): Add argz/libargz.la. * libc/configure.in (AC_OUTPUT): Add argz/Makefile. * libc/include/errno.h: Add error_t typedef.
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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