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diff --git a/src/utils/strutils.h b/src/utils/strutils.h
index 86ee43b..ca3b750 100644
--- a/src/utils/strutils.h
+++ b/src/utils/strutils.h
@@ -1,107 +1,112 @@
/* -------------------------------------------------------------
RabbitMQ TCL - String utilities header library
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
___ __ \_____ ___ /____ /____(_)_ /___ |/ /_ __ \
__ /_/ / __ `/_ __ \_ __ \_ /_ __/_ /|_/ /_ / / /
_ _, _// /_/ /_ /_/ / /_/ / / / /_ _ / / / / /_/ /
/_/ |_| \__,_/ /_.___//_.___//_/ \__/ /_/ /_/ \___\_\
_____________________
RabbitMQ C AMQP client library TCL wrapper ___ __/_ ____/__ /
TCL module to connect to AMQP brokers. __ / _ / __ /
_ / / /___ _ /___
(c) 2015, Nasqueron, some rights reserved. /_/ \____/ /_____/
Released under BSD-2-Clause license.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Software: RabbitMQ TCL
Author: Sébastien Santoro aka Dereckson
Filename: strutils.h
Created: 2015-12-08
Licence: BSD-2-Clause
------------------------------------------------------------- */
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
/* -------------------------------------------------------------
Magic constants
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#define STR_NOT_FOUND -1
/* -------------------------------------------------------------
Common string functions inspired by PHP standard functions:
strpos
str_replace
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/**
* Finds the position of the first occurrence of a substring in a string
*
* @param[in] haystack The string to search in
* @param[in] needle The string to search
* @return The position of where the needle exists, or STR_NOT_FOUND
*/
int strpos(const char *haystack, const char *needle) {
// http://stackoverflow.com/a/7655509/1930997 - snippet by Miere
char *p = strstr(haystack, needle);
if (p)
return p - haystack;
return STR_NOT_FOUND;
}
/**
* Replaces all occurrences of the search string with the replacement string
*
* @param[in] needle The value being searched for (search)
* @param[in] replace The replacement value
* @param[in] haystack The string being searched and replaced on (subject)
* @return A string with the replaced values
*/
char *str_replace(const char *needle, const char *replace, char *haystack) {
// This code is based on a str_replace function designed by
// Chantra <chantra@debuntu.org> and Iain R. Learmonth <irl@sdf.org>
- // Source: https://github.com/irl/la-cucina/blob/master/str_replace.c
+ // Source: https://github.com/irl/la-cucina/blob/master/str_replace.c
- char *tok = NULL;
- char *newstr = NULL;
- char *oldstr = NULL;
- int oldstr_len = 0;
- int needle_len = 0;
- int replacement_len = 0;
+ char *token = NULL;
+ char *replacedString = NULL;
+ char *oldString = NULL;
- newstr = strdup(haystack);
- needle_len = strlen(needle);
- replacement_len = strlen(replace);
+ int oldStringLen = 0;
+ int needleLen = 0;
+ int replaceLen = 0;
- if (needle == NULL || replace == NULL || needle_len == 0) {
- return newstr;
+ int len; // Stores len before a malloc call
+
+ replacedString = strdup(haystack);
+ needleLen = strlen(needle);
+ replaceLen = strlen(replace);
+
+ if (needle == NULL || replace == NULL || needleLen == 0) {
+ return replacedString;
}
- while ((tok = strstr(newstr, needle))) {
- oldstr = newstr;
- oldstr_len = strlen(oldstr);
- newstr = (char *)malloc(
- sizeof(char) * (oldstr_len - needle_len + replacement_len + 1));
+ while ((token = strstr(replacedString, needle))) {
+ oldString = replacedString;
+ oldStringLen = strlen(oldString);
+
+ len = oldStringLen - needleLen + replaceLen + 1;
+ replacedString = (char *)malloc(sizeof(char) * len);
- if (newstr == NULL) {
- free(oldstr);
+ if (replacedString == NULL) {
+ free(oldString);
return NULL;
}
- memcpy(newstr, oldstr, tok - oldstr);
- memcpy(newstr + (tok - oldstr), replace, replacement_len);
- memcpy(newstr + (tok - oldstr) + replacement_len, tok + needle_len,
- oldstr_len - needle_len - (tok - oldstr));
- memset(newstr + oldstr_len - needle_len + replacement_len, 0, 1);
+ memcpy(replacedString, oldString, token - oldString);
+ memcpy(replacedString + (token - oldString), replace, replaceLen);
+ memcpy(replacedString + (token - oldString) + replaceLen,
+ token + needleLen,
+ oldStringLen - needleLen - (token - oldString));
+ memset(replacedString + oldStringLen - needleLen + replaceLen, 0, 1);
- free(oldstr);
+ free(oldString);
}
- return newstr;
+ return replacedString;
}

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