b260b11a3b
The utility library is for functions which are shared in commands, but that does not belong to libproc-ng. The first function is a wrapper for strtol that performs error checking, and exists if such happen. Signed-off-by: Sami Kerola <kerolasa@iki.fi>
35 lines
610 B
C
35 lines
610 B
C
#include <stdlib.h>
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#include "c.h"
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#include "strutils.h"
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/*
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* same as strtol(3) but exit on failure instead of returning crap
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*/
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long strtol_or_err(const char *str, const char *errmesg)
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{
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long num;
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char *end = NULL;
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if (str == NULL || *str == '\0')
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goto err;
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errno = 0;
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num = strtol(str, &end, 10);
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if (errno || str == end || (end && *end))
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goto err;
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return num;
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err:
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if (errno)
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err(EXIT_FAILURE, "%s: '%s'", errmesg, str);
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else
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errx(EXIT_FAILURE, "%s: '%s'", errmesg, str);
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}
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#ifdef TEST_PROGRAM
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int main(int argc, char *argv[])
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{
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return EXIT_FAILURE;
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}
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#endif /* TEST_PROGRAM */
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