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improve number parsing in opts.c

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Quinn
2025-08-20 13:18:45 +02:00
parent 6ce633b06b
commit ed1794ffbf
1 changed files with 5 additions and 1 deletions
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6
src/opts.c
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@@ -1,5 +1,6 @@
#include "opts.h" #include "opts.h"
#include <errno.h>
#include <getopt.h> #include <getopt.h>
#include <stdint.h> #include <stdint.h>
#include <stdlib.h> #include <stdlib.h>
@@ -36,8 +37,11 @@ u8 getoptions(int argc, char *const *argv, int *ncpus) {
} }
if (optind < argc) { if (optind < argc) {
char *end;
char *num = argv[optind]; char *num = argv[optind];
*ncpus = atoi(num); *ncpus = strtol(num, &end, 0);
if (errno || end == num || *end != '\0')
fatal("failed to parse numeric value from string '%s'", num);
} else if (opts & OPT_LIST_CORES) { } else if (opts & OPT_LIST_CORES) {
*ncpus = -1; *ncpus = -1;
} else } else