35 lines
610 B
C
35 lines
610 B
C
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#include "c.h"
|
||
|
|
#include "strutils.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* same as strtol(3) but exit on failure instead of returning crap
|
||
|
|
*/
|
||
|
|
long strtol_or_err(const char *str, const char *errmesg)
|
||
|
|
{
|
||
|
|
long num;
|
||
|
|
char *end = NULL;
|
||
|
|
|
||
|
|
if (str == NULL || *str == '\0')
|
||
|
|
goto err;
|
||
|
|
errno = 0;
|
||
|
|
num = strtol(str, &end, 10);
|
||
|
|
if (errno || str == end || (end && *end))
|
||
|
|
goto err;
|
||
|
|
|
||
|
|
return num;
|
||
|
|
err:
|
||
|
|
if (errno)
|
||
|
|
err(EXIT_FAILURE, "%s: '%s'", errmesg, str);
|
||
|
|
else
|
||
|
|
errx(EXIT_FAILURE, "%s: '%s'", errmesg, str);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef TEST_PROGRAM
|
||
|
|
int main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
return EXIT_FAILURE;
|
||
|
|
}
|
||
|
|
#endif /* TEST_PROGRAM */
|