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path: root/contrib/libs/openssl/apps/errstr.c
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/* 
 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. 
 * 
 * Licensed under the OpenSSL license (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_HELP_STR, 1, '-', "  errnum  Error number\n"}, 
    {"help", OPT_HELP, '-', "Display this summary"}, 
    {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; 
        } 
    } 
 
    ret = 0; 
    for (argv = opt_rest(); *argv; argv++) { 
        if (sscanf(*argv, "%lx", &l) == 0) { 
            ret++; 
        } else { 
            /* 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); 
            ERR_error_string_n(l, buf, sizeof(buf)); 
            BIO_printf(bio_out, "%s\n", buf); 
        } 
    } 
 end: 
    return ret; 
}