aboutsummaryrefslogtreecommitdiff
path: root/src/rpminfo.c
blob: cf39c087bfdf635c997bdbc9a16e5beb6cb59e4e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
/**
 * Print RPM package name, version, revision, and other meta-data.
 * Depends on RPM 5.x
 * 
 * Written by Lucas C. Villa Real <lucasvr@gobolinux.org>
 * Released under the GNU GPL version 2 or above.
 */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <unistd.h>
#include <errno.h>

#define _RPMEVR_INTERNAL
#include <rpm/rpmio.h>
#include <rpm/rpmcli.h>
#include <rpm/pkgio.h>
#include <rpm/rpmds.h>

struct optinfo {
	const char *name;
	const char *desc;
	void (*fn)(Header *);
};

void generic_print_msg(Header *hdr, const char *fmt)
{
	char *value = headerSprintf(*hdr, fmt, NULL, NULL, NULL);
	if (value) {
		printf("%s\n", value);
		free(value);
	}
}

void print_arch(Header *hdr)
{
	generic_print_msg(hdr, "%{arch}");
}

void print_compressor(Header *hdr)
{
	generic_print_msg(hdr, "%{payloadcompressor}");
}

void print_dependencies(Header *hdr)
{
	rpmds depinfo = rpmdsNew(*hdr, RPMTAG_REQUIRENAME, 0);

	/* init iterator */
	depinfo = rpmdsInit(depinfo);
	while (rpmdsNext(depinfo) >= 0) {
		const char *name = rpmdsN(depinfo);
		const char *version= rpmdsEVR(depinfo);
		evrFlags flags = rpmdsFlags(depinfo);
		if (flags & RPMSENSE_RPMLIB) {
			/* ignore dependencies on rpmlib features */
			continue;
		}
		printf("%s", name);
		if (version && strlen(version)) {
			if (flags)
				printf(" ");
			if (flags & RPMSENSE_LESS)
				printf("<");
			if (flags & RPMSENSE_GREATER)
				printf(">");
			if (RPMSENSE_EQUAL)
				printf("=");
			printf(" %s", version);
		}
		printf("\n");
	}

	rpmdsFree(depinfo);
}

void print_description(Header *hdr)
{
	generic_print_msg(hdr, "%{description}");
}

void print_distribution(Header *hdr)
{
	generic_print_msg(hdr, "%{distribution}");
}

void print_filenames(Header *hdr)
{
	rpmfi fileinfo = rpmfiNew(NULL, *hdr, RPMTAG_BASENAMES, 0);
	while (rpmfiNext(fileinfo) >= 0) {
		const char *name = rpmfiFN(fileinfo);
		printf("%s\n", name);
	}
	rpmfiFree(fileinfo);
}

void print_license(Header *hdr)
{
	generic_print_msg(hdr, "%{license}");
}

void print_name(Header *hdr)
{
	generic_print_msg(hdr, "%{name}");
}

void print_release(Header *hdr)
{
	generic_print_msg(hdr, "%{release}");
}

void print_summary(Header *hdr)
{
	generic_print_msg(hdr, "%{summary}");
}

void print_url(Header *hdr)
{
	generic_print_msg(hdr, "%{url}");
}

void print_version(Header *hdr)
{
	generic_print_msg(hdr, "%{version}");
}

static struct optinfo optinfo[] = {
	{ "--arch",         "architecture",         print_arch },
	{ "--compressor",   "payload compressor",   print_compressor },
	{ "--dependencies", "package dependencies", print_dependencies },
	{ "--description",  "package description",  print_description },
	{ "--distribution", "distribution name",    print_distribution },
	{ "--filenames",    "list of files",        print_filenames },
	{ "--license",      "package license",      print_license },
	{ "--name",         "package name",         print_name },
	{ "--release",      "release number",       print_release },
	{ "--summary",      "summary information",  print_summary },
	{ "--url",          "project url",          print_url },
	{ "--version",      "package version",      print_version },
	{ NULL,             NULL,                   NULL }
};

void usage(char *appname, int retval)
{
	int i;
	fprintf(stderr, "Usage: %s OPTION <file.rpm>\n\n"
		"Available (mutually-exclusive) options are:\n", appname);
	for (i=0; optinfo[i].name; ++i)
		fprintf(stderr, "  %-17s  %s\n", optinfo[i].name, optinfo[i].desc);
	exit(retval);
}

void parse_args(int argc, char **argv, char **rpmfile, int *opt)
{
	const int argc_option = 1;
	const int argc_rpmfile = 2;
	int i;

	if (argc != 3)
		usage(argv[0], 1);

	*rpmfile = NULL;
	*opt = -1;

	for (i=0; optinfo[i].name; ++i) {
		if (!strcmp(argv[argc_option], optinfo[i].name)) {
			*opt = i;
			break;
		}
	}

	if (*opt == -1)
		usage(argv[0], 1);

	*rpmfile = argv[argc_rpmfile];
}

int main(int argc, char **argv)
{
	int option = -1;
	char *rpmfile = NULL;
	parse_args(argc, argv, &rpmfile, &option);

	FD_t fd = Fopen(rpmfile, "r.ufdio");
	if (! fd || Ferror(fd)) {
		fprintf(stderr, "Failed to open %s: %s\n", rpmfile, Fstrerror(fd));
		return 1;
	}

	rpmVSFlags vsflags = 0;
	vsflags |=  RPMVSF_NOHDRCHK;
	vsflags |= _RPMVSF_NODIGESTS;
	vsflags |= _RPMVSF_NOSIGNATURES;

	rpmts ts = rpmtsCreate();
	rpmtsSetVSFlags(ts, vsflags);

	Header hdr;
	rpmRC rc = rpmReadPackageFile(ts, fd, rpmfile, &hdr);
	if (rc != RPMRC_OK) {
		fprintf(stderr, "Failed to read package file %s\n", rpmfile);
		return 1;
	}

	/* handle option */
	optinfo[option].fn(&hdr);

	headerFree(hdr);
	rpmtsFree(ts);
	Fclose(fd);

	return 0;
}