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/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
void
die(const char *fmt, ...)
{
va_list ap;
int saved_errno;
saved_errno = errno;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (fmt[0] && fmt[strlen(fmt)-1] == ':')
fprintf(stderr, " %s", strerror(saved_errno));
fputc('\n', stderr);
exit(1);
}
/*
* Splits a string into segments according to a separator. A '\0' is written to
* the end of every segment. The beginning of every segment is written to
* 'pbegin'. Only the first 'maxcount' segments will be written if
* maxcount > 0. Inspired by python's split.
*
* Used exclusively by fakesignal() to split arguments.
*/
size_t
split(char *s, const char* sep, char **pbegin, size_t maxcount) {
char *p, *q;
const size_t seplen = strlen(sep);
size_t count = 0;
maxcount = maxcount == 0 ? (size_t)-1 : maxcount;
p = s;
while ((q = strstr(p, sep)) != NULL && count < maxcount) {
pbegin[count] = p;
*q = '\0';
p = q + seplen;
count++;
}
if (count < maxcount) {
pbegin[count] = p;
count++;
}
return count;
}
void *
ecalloc(size_t nmemb, size_t size)
{
void *p;
if (!(p = calloc(nmemb, size)))
die("calloc:");
return p;
}
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