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/*
* This test program prints errno messages to allow for portable
* verification of error messages.
*
* Copyright (C) 2019 Patrick Steinhardt <ps@pks.im
*
* This file may be redistributed under the terms of the GNU Public
* License.
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define E(x) { #x, x }
static struct {
const char *str;
int error;
} errors[] = {
E(ENOENT),
E(ENOTTY),
E(EILSEQ)
};
int main(int argc, const char *argv[])
{
size_t i;
if (argc != 2) {
fprintf(stderr, "USAGE: %s <errno>\n", argv[0]);
return -1;
}
for (i = 0; i < sizeof(errors)/sizeof(*errors); i++) {
if (strcmp(errors[i].str, argv[1]) != 0)
continue;
puts(strerror(errors[i].error));
return 0;
}
fprintf(stderr, "Invalid errno: %s\n", argv[1]);
return -1;
}
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