1 6509b181 2022-12-30 thomas /*
 2 96b8c570 2022-12-30 thomas  * Copyright (c) 2022 Omar Polo <op@openbsd.org>
 3 6509b181 2022-12-30 thomas  *
 4 6509b181 2022-12-30 thomas  * Permission to use, copy, modify, and distribute this software for any
 5 6509b181 2022-12-30 thomas  * purpose with or without fee is hereby granted, provided that the above
 6 6509b181 2022-12-30 thomas  * copyright notice and this permission notice appear in all copies.
 7 6509b181 2022-12-30 thomas  *
 8 6509b181 2022-12-30 thomas  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 6509b181 2022-12-30 thomas  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 6509b181 2022-12-30 thomas  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 6509b181 2022-12-30 thomas  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 6509b181 2022-12-30 thomas  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 6509b181 2022-12-30 thomas  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 6509b181 2022-12-30 thomas  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 6509b181 2022-12-30 thomas  */
16 6509b181 2022-12-30 thomas 
17 6509b181 2022-12-30 thomas #include <err.h>
18 6509b181 2022-12-30 thomas #include <stdio.h>
19 6509b181 2022-12-30 thomas #include <stdlib.h>
20 6509b181 2022-12-30 thomas #include <unistd.h>
21 6509b181 2022-12-30 thomas 
22 cb11302c 2022-12-30 thomas #include "got_compat.h"
23 cb11302c 2022-12-30 thomas 
24 6509b181 2022-12-30 thomas int	 parse(FILE *, const char *);
25 6509b181 2022-12-30 thomas 
26 6509b181 2022-12-30 thomas int	 nodebug;
27 6509b181 2022-12-30 thomas 
28 6509b181 2022-12-30 thomas static void __dead
29 6509b181 2022-12-30 thomas usage(void)
30 6509b181 2022-12-30 thomas {
31 6509b181 2022-12-30 thomas 	fprintf(stderr, "usage: %s [file...]\n",
32 6509b181 2022-12-30 thomas 	    getprogname());
33 6509b181 2022-12-30 thomas 	exit(1);
34 6509b181 2022-12-30 thomas }
35 6509b181 2022-12-30 thomas 
36 6509b181 2022-12-30 thomas int
37 6509b181 2022-12-30 thomas main(int argc, char **argv)
38 6509b181 2022-12-30 thomas {
39 6509b181 2022-12-30 thomas 	FILE		*fp = stdout;
40 6509b181 2022-12-30 thomas 	const char	*out = NULL;
41 6509b181 2022-12-30 thomas 	int		 ch, i;
42 6509b181 2022-12-30 thomas 
43 6509b181 2022-12-30 thomas 	while ((ch = getopt(argc, argv, "Go:")) != -1) {
44 6509b181 2022-12-30 thomas 		switch (ch) {
45 6509b181 2022-12-30 thomas 		case 'G':
46 6509b181 2022-12-30 thomas 			nodebug = 1;
47 6509b181 2022-12-30 thomas 			break;
48 6509b181 2022-12-30 thomas 		case 'o':
49 6509b181 2022-12-30 thomas 			out = optarg;
50 6509b181 2022-12-30 thomas 			break;
51 6509b181 2022-12-30 thomas 		default:
52 6509b181 2022-12-30 thomas 			usage();
53 6509b181 2022-12-30 thomas 		}
54 6509b181 2022-12-30 thomas 	}
55 6509b181 2022-12-30 thomas 	argc -= optind;
56 6509b181 2022-12-30 thomas 	argv += optind;
57 6509b181 2022-12-30 thomas 
58 6509b181 2022-12-30 thomas 	if (out && (fp = fopen(out, "w")) == NULL)
59 6509b181 2022-12-30 thomas 		err(1, "can't open %s", out);
60 6509b181 2022-12-30 thomas 
61 6509b181 2022-12-30 thomas 	if (out && unveil(out, "wc") == -1)
62 6509b181 2022-12-30 thomas 		err(1, "unveil %s", out);
63 6509b181 2022-12-30 thomas 	if (unveil("/", "r") == -1)
64 6509b181 2022-12-30 thomas 		err(1, "unveil /");
65 6509b181 2022-12-30 thomas 	if (pledge(out ? "stdio rpath cpath" : "stdio rpath", NULL) == -1)
66 6509b181 2022-12-30 thomas 		err(1, "pledge");
67 6509b181 2022-12-30 thomas 
68 6509b181 2022-12-30 thomas 	if (argc == 0) {
69 6509b181 2022-12-30 thomas 		nodebug = 1;
70 6509b181 2022-12-30 thomas 		if (parse(fp, "/dev/stdin") == -1)
71 6509b181 2022-12-30 thomas 			goto err;
72 6509b181 2022-12-30 thomas 	} else {
73 6509b181 2022-12-30 thomas 		for (i = 0; i < argc; ++i)
74 6509b181 2022-12-30 thomas 			if (parse(fp, argv[i]) == -1)
75 6509b181 2022-12-30 thomas 				goto err;
76 6509b181 2022-12-30 thomas 	}
77 6509b181 2022-12-30 thomas 
78 6509b181 2022-12-30 thomas 	if (ferror(fp))
79 6509b181 2022-12-30 thomas 		goto err;
80 6509b181 2022-12-30 thomas 
81 6509b181 2022-12-30 thomas 	if (fclose(fp) == -1) {
82 6509b181 2022-12-30 thomas 		fp = NULL;
83 6509b181 2022-12-30 thomas 		goto err;
84 6509b181 2022-12-30 thomas 	}
85 6509b181 2022-12-30 thomas 
86 6509b181 2022-12-30 thomas 	return (0);
87 6509b181 2022-12-30 thomas 
88 6509b181 2022-12-30 thomas err:
89 6509b181 2022-12-30 thomas 	if (fp)
90 6509b181 2022-12-30 thomas 		fclose(fp);
91 6509b181 2022-12-30 thomas 	if (out && unlink(out) == -1)
92 6509b181 2022-12-30 thomas 		err(1, "unlink %s", out);
93 6509b181 2022-12-30 thomas 	return (1);
94 6509b181 2022-12-30 thomas }