diff options
Diffstat (limited to 'newlib/libc/argz/argz_replace.c')
-rw-r--r-- | newlib/libc/argz/argz_replace.c | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/newlib/libc/argz/argz_replace.c b/newlib/libc/argz/argz_replace.c deleted file mode 100644 index 92979e6f5..000000000 --- a/newlib/libc/argz/argz_replace.c +++ /dev/null @@ -1,83 +0,0 @@ -/* 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 <argz.h> - -extern int buf_findstr(const char *str, char **buf, size_t *buf_len); - -error_t -argz_replace (char **argz, size_t *argz_len, const char *str, const char *with, unsigned *replace_count) -{ - const int str_len = strlen(str); - const int with_len = strlen(with); - const int len_diff = with_len - str_len; - - char *buf_iter = *argz; - size_t buf_len = *argz_len; - char *last_iter = NULL; - char *new_argz = NULL; - size_t new_argz_len = 0; - char *new_argz_iter = NULL; - - *replace_count = 0; - new_argz_len = *argz_len; - - while(buf_len) - { - if(buf_findstr(str, &buf_iter, &buf_len)) - { - *replace_count += 1; - new_argz_len += len_diff; - } - } - - if (*replace_count) - { - new_argz = (char *)malloc(new_argz_len); - - buf_iter = *argz; - buf_len = *argz_len; - last_iter = buf_iter; - new_argz_iter = new_argz; - - while(buf_len) - { - if (buf_findstr(str, &buf_iter, &buf_len)) - { - /* copy everything up to, but not including str, from old argz to - new argz. */ - memcpy(new_argz_iter, last_iter, buf_iter - last_iter - str_len); - new_argz_iter += (buf_iter - last_iter - str_len); - /* copy replacement string. */ - memcpy(new_argz_iter, with, with_len); - new_argz_iter += with_len; - last_iter = buf_iter; - } - } - /* copy everything after last occurrence of str. */ - memcpy(new_argz_iter, last_iter, *argz + *argz_len - last_iter); - - /* reallocate argz, and copy over the new value. */ - if(!(*argz = (char *)realloc(*argz, new_argz_len))) - return ENOMEM; - - memcpy(*argz, new_argz, new_argz_len); - *argz_len = new_argz_len; - - if (*argz_len == 0) - { - free(*argz); - *argz = NULL; - } - free(new_argz); - } - - return 0; -} |