1 /*
2 * Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the License); you may
5 * not use this file except in compliance with the License.
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 */
9
10
11 #include <stdio.h>
12 #include <errno.h>
13 #include <string.h>
14 #include <stdlib.h>
15 #include <gmssl/x509.h>
16 #include <gmssl/x509_req.h>
17
18
19 static const char *options = "[-in file] [-out file]";
20
reqparse_main(int argc,char ** argv)21 int reqparse_main(int argc, char **argv)
22 {
23 int ret = 1;
24 char *prog = argv[0];
25 char *infile = NULL;
26 char *outfile = NULL;
27 FILE *infp = stdin;
28 FILE *outfp = stdout;
29 uint8_t req[1024];
30 size_t reqlen;
31
32 argc--;
33 argv++;
34
35 while (argc > 0) {
36 if (!strcmp(*argv, "-help")) {
37 printf("usage: %s %s\n", prog, options);
38 goto end;
39 } else if(!strcmp(*argv, "-in")) {
40 if (--argc < 1) goto bad;
41 infile = *(++argv);
42 if (!(infp = fopen(infile, "r"))) {
43 fprintf(stderr, "%s: open '%s' failure : %s\n", prog, infile, strerror(errno));
44 goto end;
45 }
46 } else if (!strcmp(*argv, "-out")) {
47 if (--argc < 1) goto bad;
48 outfile = *(++argv);
49 if (!(outfp = fopen(outfile, "w"))) {
50 fprintf(stderr, "%s: open '%s' failure : %s\n", prog, outfile, strerror(errno));
51 goto end;
52 }
53 } else {
54 fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
55 goto end;
56 bad:
57 fprintf(stderr, "%s: '%s' option value missing\n", prog, *argv);
58 goto end;
59 }
60
61 argc--;
62 argv++;
63 }
64
65 if (x509_req_from_pem(req, &reqlen, sizeof(req), infp) != 1) {
66 fprintf(stderr, "%s: read CSR failure\n", prog);
67 goto end;
68 }
69 x509_req_print(outfp, 0, 0, "CertificationRequest", req, reqlen);
70 if (x509_req_to_pem(req, reqlen, outfp) != 1) {
71 fprintf(stderr, "%s: output CSR failure\n", prog);
72 goto end;
73 }
74 ret = 0;
75 end:
76 if (infile && infp) fclose(infp);
77 if (outfile && outfp) fclose(outfp);
78 return ret;
79 }
80