openssl/apps/errstr.c
Rich Salz 021410ea3f Check non-option arguments
Make sure all commands check to see if there are any "extra" arguments
after the options, and print an error if so.

Made all error messages consistent (which is to say, minimal).

Fixes: #13527

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13563)
2020-12-15 11:47:17 +01:00

75 lines
1.9 KiB
C

/*
* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
#include "progs.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP
} OPTION_CHOICE;
const OPTIONS errstr_options[] = {
{OPT_HELP_STR, 1, '-', "Usage: %s [options] errnum...\n"},
OPT_SECTION("General"),
{"help", OPT_HELP, '-', "Display this summary"},
OPT_PARAMETERS(),
{"errnum", 0, 0, "Error number(s) to decode"},
{NULL}
};
int errstr_main(int argc, char **argv)
{
OPTION_CHOICE o;
char buf[256], *prog;
int ret = 1;
unsigned long l;
prog = opt_init(argc, argv, errstr_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(errstr_options);
ret = 0;
goto end;
}
}
/*
* We're not really an SSL application so this won't auto-init, but
* we're still interested in SSL error strings
*/
OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
| OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
/* All remaining arg are error code. */
ret = 0;
for (argv = opt_rest(); *argv != NULL; argv++) {
if (sscanf(*argv, "%lx", &l) == 0) {
ret++;
} else {
ERR_error_string_n(l, buf, sizeof(buf));
BIO_printf(bio_out, "%s\n", buf);
}
}
end:
return ret;
}