Files
GmSSL/tools/crlparse.c
2022-12-28 23:37:30 +08:00

104 lines
2.3 KiB
C

/*
* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
*
* http://www.apache.org/licenses/LICENSE-2.0
*/
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/file.h>
#include <gmssl/x509.h>
#include <gmssl/x509_crl.h>
static const char *options = "-in file [-out file]";
int crlparse_main(int argc, char **argv)
{
int ret = 1;
char *prog = argv[0];
char *infile = NULL;
char *outfile = NULL;
FILE *infp = stdin;
FILE *outfp = stdout;
uint8_t *in = NULL;
size_t inlen;
const uint8_t *pin;
const uint8_t *crl = NULL;
size_t crllen;
argc--;
argv++;
if (argc < 1) {
fprintf(stderr, "usage: %s %s\n", prog, options);
return 1;
}
while (argc > 0) {
if (!strcmp(*argv, "-help")) {
printf("usage: %s %s\n", prog, options);
goto end;
} else if (!strcmp(*argv, "-in")) {
if (--argc < 1) goto bad;
infile = *(++argv);
if (!(infp = fopen(infile, "rb"))) {
fprintf(stderr, "%s: open '%s' failure : %s\n", prog, infile, strerror(errno));
goto end;
}
} else if (!strcmp(*argv, "-out")) {
if (--argc < 1) goto bad;
outfile = *(++argv);
if (!(outfp = fopen(outfile, "wb"))) {
fprintf(stderr, "%s: open '%s' failure : %s\n", prog, outfile, strerror(errno));
goto end;
}
} else {
fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
goto end;
bad:
fprintf(stderr, "%s: '%s' option value missing\n", prog, *argv);
goto end;
}
argc--;
argv++;
}
if (!infile) {
fprintf(stderr, "%s: '-in' option required\n", prog);
goto end;
}
if (file_size(infp, &inlen) != 1) {
fprintf(stderr, "%s: get input length failed\n", prog);
goto end;
}
if (!(in = malloc(inlen))) {
fprintf(stderr, "%s: malloc failure\n", prog);
goto end;
}
if (fread(in, 1, inlen, infp) != inlen) {
fprintf(stderr, "%s: read file error : %s\n", prog, strerror(errno));
goto end;
}
pin = in;
if (x509_crl_from_der(&crl, &crllen, &pin, &inlen) != 1
|| asn1_length_is_zero(inlen) != 1) {
fprintf(stderr, "%s: read CRL failure\n", prog);
goto end;
}
x509_crl_print(outfp, 0, 0, "CRL", crl, crllen);
end:
if (infile && infp) fclose(infp);
if (outfile && outfp) fclose(outfp);
if (in) free(in);
return ret;
}