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| -rw-r--r-- | libshouldbeinlibc/argz-replace.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/libshouldbeinlibc/argz-replace.c b/libshouldbeinlibc/argz-replace.c deleted file mode 100644 index 0a0dcdf9..00000000 --- a/libshouldbeinlibc/argz-replace.c +++ /dev/null @@ -1,134 +0,0 @@ -/* String replacement in an argz vector - Copyright (C) 1997 Free Software Foundation, Inc. - Written by Miles Bader <miles@gnu.ai.mit.edu> - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <stdlib.h> -#include <argz.h> - -/* Append BUF, of length BUF_LEN to *TO, of length *TO_LEN, reallocating and - updating *TO & *TO_LEN appropriately. If an allocation error occurs, - *TO's old value is freed, and *TO is set to 0. */ -static void -str_append (char **to, size_t *to_len, const char *buf, const size_t buf_len) -{ - size_t new_len = *to_len + buf_len; - char *new_to = realloc (*to, new_len + 1); - - if (new_to) - { - memcpy (new_to + *to_len, buf, buf_len); - new_to[new_len] = '\0'; - *to = new_to; - *to_len = new_len; - } - else - { - free (*to); - *to = 0; - } -} - -/* Replace any occurances of the string STR in ARGZ with WITH, reallocating - ARGZ as necessary. If REPLACE_COUNT is non-zero, *REPLACE_COUNT will be - incremented by number of replacements performed. */ -error_t -argz_replace (char **argz, size_t *argz_len, const char *str, const char *with, - unsigned *replace_count) -{ - error_t err = 0; - - if (str && *str) - { - char *arg = 0; - char *src = *argz; - size_t src_len = *argz_len; - char *dst = 0; - size_t dst_len = 0; - int delayed_copy = 1; /* True while we've avoided copying anything. */ - size_t str_len = strlen (str), with_len = strlen (with); - - while (!err && (arg = argz_next (src, src_len, arg))) - { - char *match = strstr (arg, str); - if (match) - { - char *from = match + str_len; - size_t to_len = match - arg; - char *to = strndup (arg, to_len); - - while (to && from) - { - str_append (&to, &to_len, with, with_len); - if (to) - { - match = strstr (from, str); - if (match) - { - str_append (&to, &to_len, from, match - from); - from = match + str_len; - } - else - { - str_append (&to, &to_len, from, strlen (from)); - from = 0; - } - } - } - - if (to) - { - if (delayed_copy) - /* We avoided copying SRC to DST until we found a match; - now that we've done so, copy everything from the start - of SRC. */ - { - if (arg > src) - err = argz_append (&dst, &dst_len, src, (arg - src)); - delayed_copy = 0; - } - if (! err) - err = argz_add (&dst, &dst_len, to); - free (to); - } - else - err = ENOMEM; - - if (replace_count) - (*replace_count)++; - } - else if (! delayed_copy) - err = argz_add (&dst, &dst_len, arg); - } - - if (! err) - { - if (! delayed_copy) - /* We never found any instances of str. */ - { - if (src) - free (src); - *argz = dst; - *argz_len = dst_len; - } - } - else if (dst_len > 0) - free (dst); - } - - return err; -} |