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Add crlget tool

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This commit is contained in:
Zhi Guan
2023-01-31 19:18:46 +08:00
parent 13eae91d7d
commit b5df2121d3
6 changed files with 212 additions and 62 deletions
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90
tools/crlget.c
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@@ -14,46 +14,51 @@
#include <stdlib.h>
#include <gmssl/pem.h>
#include <gmssl/x509.h>
#include <gmssl/x509_ext.h>
#include <gmssl/http.h>
#include <gmssl/error.h>
static const char *usage = "[-in pem] [-out file]\n";
static const char *usage = "-cert pem [-out file]\n";
static const char *options =
"Options\n"
"\n"
" -in pem | stdin Input certificates in PEM format.\n"
" -cert pem Input certificates in PEM format.\n"
" -out der | stdout Output CRL file in DER-encoding\n"
"\n"
"Examples\n"
"\n"
" gmssl crlget -in cert.pem -out crl.der\n"
" gmssl crlget -cert cert.pem -out crl.der\n"
"\n";
int certparse_main(int argc, char **argv)
int crlget_main(int argc, char **argv)
{
int ret = 1;
char *prog = argv[0];
char *infile = NULL;
char *str;
uint8_t *cert = NULL;
size_t certlen = 0;
char *outfile = NULL;
FILE *infp = stdin;
FILE *outfp = stdout;
uint8_t cert[18192];
size_t certlen;
const uint8_t *exts;
size_t extslen;
argc--;
argv++;
while (argc > 0) {
if (!strcmp(*argv, "-help")) {
printf("usage: gmssl %s %s\n\n", prog, options);
printf("%s\n", usage);
printf("usage: gmssl %s %s\n\n", prog, usage);
printf("%s\n", options);
goto end;
} else if (!strcmp(*argv, "-in")) {
} else if (!strcmp(*argv, "-cert")) {
if (--argc < 1) goto bad;
infile = *(++argv);
if (!(infp = fopen(infile, "rb"))) {
fprintf(stderr, "%s: open '%s' failure : %s\n", prog, infile, strerror(errno));
str = *(++argv);
if (x509_cert_new_from_file(&cert, &certlen, str) != 1) {
fprintf(stderr, "%s: load ca certificate '%s' failure\n", prog, str);
goto end;
}
} else if (!strcmp(*argv, "-out")) {
@@ -75,17 +80,68 @@ bad:
argv++;
}
if (x509_cert_from_pem(cert, &certlen, sizeof(cert), infp) != 1) {
if (!cert) {
fprintf(stderr, "%s: `-cert` option required\n", prog);
printf("usage: gmssl %s %s\n\n", prog, options);
goto end;
}
if (x509_cert_get_exts(cert, certlen, &exts, &extslen) != 1) {
error_print();
goto end;
}
if (!exts) {
goto end;
}
int critical;
const uint8_t *val;
size_t vlen;
if ((ret = x509_exts_get_ext_by_oid(exts, extslen, OID_ce_crl_distribution_points, &critical, &val, &vlen)) < 0) {
error_print();
goto end;
}
if (x509_exts_get_ext_by_oid(exts, extslen, OID_ce_crl_
char *uristr;
const char *uri;
size_t urilen;
int reason;
const uint8_t *crl_issuer;
size_t crl_issuer_len;
if (x509_uri_as_distribution_points_from_der(&uri, &urilen, &reason, &crl_issuer, &crl_issuer_len, &val, &vlen) != 1) {
error_print();
goto end;
}
if (!(uristr = strndup(uri, urilen))) {
error_print();
goto end;
}
uint8_t *crl = NULL;
size_t crl_len = 0;
if (http_get(uristr, NULL, &crl_len, 0) < 0) {
error_print();
goto end;
}
if (!(crl = malloc(crl_len))) {
error_print();
goto end;
}
if (http_get(uristr, crl, &crl_len, crl_len) != 1) {
error_print();
goto end;
}
fwrite(crl, crl_len, 1, outfp);
ret = 0;
end:
if (infile && infp) fclose(infp);
if (cert) free(cert);
if (outfile && outfp) fclose(outfp);
return ret;
}