simple/errno/errno.c

35 lines
498 B
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char *cmnd;
static void usage(void) {
fprintf(stderr, "Usage: %s errno ...\n", cmnd);
exit(1);
}
int main(int argc, char **argv) {
int i;
cmnd = argv[0];
if (argc <= 1) {
int e;
for (e = 0;; e++) {
printf("%d\t%s\n", e, strerror(e));
}
} else {
for (i = 1; i < argc; i++) {
int e = strtoul(argv[i], NULL, 0);
printf("%d\t%s\n", e, strerror(e));
}
}
return 0;
}
/*
* vim:sw=4
*/