mirror of
https://github.com/sheumann/hush.git
synced 2024-11-05 06:07:00 +00:00
0ef64bdb40
This change retains "or later" state! No licensing _changes_ here, only form is adjusted (article, space between "GPL" and "v2" and so on). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Utility routines.
|
|
*
|
|
* Copyright (C) 2008 Bernhard Reutner-Fischer
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
|
*/
|
|
|
|
#ifdef __DO_STRRSTR_TEST
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#else
|
|
#include "libbb.h"
|
|
#endif
|
|
|
|
/*
|
|
* The strrstr() function finds the last occurrence of the substring needle
|
|
* in the string haystack. The terminating nul characters are not compared.
|
|
*/
|
|
char* FAST_FUNC strrstr(const char *haystack, const char *needle)
|
|
{
|
|
char *r = NULL;
|
|
|
|
if (!needle[0])
|
|
return (char*)haystack + strlen(haystack);
|
|
while (1) {
|
|
char *p = strstr(haystack, needle);
|
|
if (!p)
|
|
return r;
|
|
r = p;
|
|
haystack = p + 1;
|
|
}
|
|
}
|
|
|
|
#ifdef __DO_STRRSTR_TEST
|
|
int main(int argc, char **argv)
|
|
{
|
|
static const struct {
|
|
const char *h, *n;
|
|
int pos;
|
|
} test_array[] = {
|
|
/* 0123456789 */
|
|
{ "baaabaaab", "aaa", 5 },
|
|
{ "baaabaaaab", "aaa", 6 },
|
|
{ "baaabaab", "aaa", 1 },
|
|
{ "aaa", "aaa", 0 },
|
|
{ "aaa", "a", 2 },
|
|
{ "aaa", "bbb", -1 },
|
|
{ "a", "aaa", -1 },
|
|
{ "aaa", "", 3 },
|
|
{ "", "aaa", -1 },
|
|
{ "", "", 0 },
|
|
};
|
|
|
|
int i;
|
|
|
|
i = 0;
|
|
while (i < sizeof(test_array) / sizeof(test_array[0])) {
|
|
const char *r = strrstr(test_array[i].h, test_array[i].n);
|
|
printf("'%s' vs. '%s': '%s' - ", test_array[i].h, test_array[i].n, r);
|
|
if (r == NULL)
|
|
r = test_array[i].h - 1;
|
|
printf("%s\n", r == test_array[i].h + test_array[i].pos ? "PASSED" : "FAILED");
|
|
i++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|