bindfs/src/misc.c

84 lines
1.9 KiB
C

/*
Copyright 2006,2007,2008 Martin Pärtel <martin.partel@gmail.com>
This file is part of bindfs.
bindfs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
bindfs 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with bindfs. If not, see <http://www.gnu.org/licenses/>.
*/
#include "misc.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
int count_chars(const char *s, char ch)
{
int count = 0;
assert(s != NULL);
while (*s != '\0') {
if (*s == ch)
++count;
++s;
}
return count;
}
int count_substrs(const char *s, const char *sub)
{
int count = 0;
int sublen = strlen(sub);
int left = strlen(s);
assert(s != NULL && sub != NULL);
while (left > sublen) {
if (strncmp(s, sub, sublen) == 0)
++count;
--left;
++s;
}
return count;
}
char *strdup_until(const char *s, const char *endchars)
{
char *endloc = strpbrk(s, endchars);
char *ret;
if (!endloc) {
ret = malloc((strlen(s) + 1) * sizeof(char));
strcpy(ret, s);
return ret;
} else {
ret = malloc((endloc - s + 1) * sizeof(char));
memcpy(ret, s, (endloc - s) * sizeof(char));
ret[(endloc - s)] = '\0';
return ret;
}
}
const char *my_basename(const char *path)
{
const char *p;
if (path == NULL)
return NULL;
p = strrchr(path, '/');
if (p != NULL)
return p + 1;
else
return path;
}