1 /* pkg_parse.c - the opkg package management system
5 Copyright (C) 2002 Compaq Computer Corporation
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 2, or (at
10 your option) any later version.
12 This program is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
23 #include "opkg_utils.h"
24 #include "pkg_parse.h"
25 #include "libbb/libbb.h"
28 is_field(const char *type
, const char *line
)
30 if (!strncmp(line
, type
, strlen(type
)))
36 parse_simple(const char *type
, const char *line
)
38 return trim_xstrdup(line
+ strlen(type
) + 1);
42 * Parse a comma separated string into an array.
45 parse_comma_separated(const char *raw
, unsigned int *count
)
47 char **depends
= NULL
;
48 const char *start
, *end
;
51 /* skip past the "Field:" marker */
52 while (*raw
&& *raw
!= ':')
56 if (line_is_blank(raw
)) {
62 depends
= xrealloc(depends
, sizeof(char *) * (line_count
+ 1));
68 while (*raw
!= ',' && *raw
)
72 while (end
> start
&& isspace(*end
))
75 depends
[line_count
] = xstrndup(start
, end
-start
);
87 parse_status(pkg_t
*pkg
, const char *sstr
)
89 char sw_str
[64], sf_str
[64], ss_str
[64];
91 if (sscanf(sstr
, "Status: %63s %63s %63s",
92 sw_str
, sf_str
, ss_str
) != 3) {
93 opkg_msg(ERROR
, "Failed to parse Status line for %s\n",
98 pkg
->state_want
= pkg_state_want_from_str(sw_str
);
99 pkg
->state_flag
= pkg_state_flag_from_str(sf_str
);
100 pkg
->state_status
= pkg_state_status_from_str(ss_str
);
104 parse_conffiles(pkg_t
*pkg
, const char *cstr
)
106 char file_name
[1024], md5sum
[35];
108 if (sscanf(cstr
, "%1023s %34s", file_name
, md5sum
) != 2) {
109 opkg_msg(ERROR
, "Failed to parse Conffiles line for %s\n",
114 conffile_list_append(&pkg
->conffiles
, file_name
, md5sum
);
118 parse_version(pkg_t
*pkg
, const char *vstr
)
122 if (strncmp(vstr
, "Version:", 8) == 0)
125 while (*vstr
&& isspace(*vstr
))
128 colon
= strchr(vstr
, ':');
131 pkg
->epoch
= strtoul(vstr
, NULL
, 10);
133 opkg_perror(ERROR
, "%s: invalid epoch", pkg
->name
);
140 pkg
->version
= xstrdup(vstr
);
141 pkg
->revision
= strrchr(pkg
->version
,'-');
144 *pkg
->revision
++ = '\0';
150 pkg_parse_line(pkg_t
*pkg
, const char *line
, uint mask
)
152 /* these flags are a bit hackish... */
153 static int reading_conffiles
= 0, reading_description
= 0;
156 /* Exclude globally masked fields. */
159 /* Flip the semantics of the mask. */
164 if ((mask
& PFM_ARCHITECTURE
) && is_field("Architecture", line
))
165 pkg
->architecture
= parse_simple("Architecture", line
);
166 else if ((mask
& PFM_AUTO_INSTALLED
) && is_field("Auto-Installed", line
)) {
167 char *tmp
= parse_simple("Auto-Installed", line
);
168 if (strcmp(tmp
, "yes") == 0)
169 pkg
->auto_installed
= 1;
175 if ((mask
& PFM_CONFFILES
) && is_field("Conffiles", line
)) {
176 reading_conffiles
= 1;
177 reading_description
= 0;
178 goto dont_reset_flags
;
180 else if ((mask
& PFM_CONFLICTS
) && is_field("Conflicts", line
))
181 pkg
->conflicts_str
= parse_comma_separated(line
, &pkg
->conflicts_count
);
185 if ((mask
& PFM_DESCRIPTION
) && is_field("Description", line
)) {
186 pkg
->description
= parse_simple("Description", line
);
187 reading_conffiles
= 0;
188 reading_description
= 1;
189 goto dont_reset_flags
;
190 } else if ((mask
& PFM_DEPENDS
) && is_field("Depends", line
))
191 pkg
->depends_str
= parse_comma_separated(line
, &pkg
->depends_count
);
195 if((mask
& PFM_ESSENTIAL
) && is_field("Essential", line
)) {
196 char *tmp
= parse_simple("Essential", line
);
197 if (strcmp(tmp
, "yes") == 0)
204 if((mask
& PFM_FILENAME
) && is_field("Filename", line
))
205 pkg
->filename
= parse_simple("Filename", line
);
209 if ((mask
&& PFM_INSTALLED_SIZE
) && is_field("Installed-Size", line
)) {
210 char *tmp
= parse_simple("Installed-Size", line
);
211 pkg
->installed_size
= strtoul(tmp
, NULL
, 0);
213 } else if ((mask
&& PFM_INSTALLED_TIME
) && is_field("Installed-Time", line
)) {
214 char *tmp
= parse_simple("Installed-Time", line
);
215 pkg
->installed_time
= strtoul(tmp
, NULL
, 0);
221 if (mask
&& PFM_MD5SUM
) {
222 if (is_field("MD5sum:", line
))
223 pkg
->md5sum
= parse_simple("MD5sum", line
);
224 /* The old opkg wrote out status files with the wrong
225 * case for MD5sum, let's parse it either way */
226 else if (is_field("MD5Sum:", line
))
227 pkg
->md5sum
= parse_simple("MD5Sum", line
);
228 } else if((mask
& PFM_MAINTAINER
) && is_field("Maintainer", line
))
229 pkg
->maintainer
= parse_simple("Maintainer", line
);
233 if ((mask
& PFM_PACKAGE
) && is_field("Package", line
))
234 pkg
->name
= parse_simple("Package", line
);
235 else if ((mask
& PFM_PRIORITY
) && is_field("Priority", line
))
236 pkg
->priority
= parse_simple("Priority", line
);
237 else if ((mask
& PFM_PROVIDES
) && is_field("Provides", line
))
238 pkg
->provides_str
= parse_comma_separated(line
, &pkg
->provides_count
);
239 else if ((mask
& PFM_PRE_DEPENDS
) && is_field("Pre-Depends", line
))
240 pkg
->pre_depends_str
= parse_comma_separated(line
, &pkg
->pre_depends_count
);
244 if ((mask
& PFM_RECOMMENDS
) && is_field("Recommends", line
))
245 pkg
->recommends_str
= parse_comma_separated(line
, &pkg
->recommends_count
);
246 else if ((mask
& PFM_REPLACES
) && is_field("Replaces", line
))
247 pkg
->replaces_str
= parse_comma_separated(line
, &pkg
->replaces_count
);
252 if ((mask
& PFM_SECTION
) && is_field("Section", line
))
253 pkg
->section
= parse_simple("Section", line
);
255 else if ((mask
& PFM_SHA256SUM
) && is_field("SHA256sum", line
))
256 pkg
->sha256sum
= parse_simple("SHA256sum", line
);
258 else if ((mask
& PFM_SIZE
) && is_field("Size", line
)) {
259 char *tmp
= parse_simple("Size", line
);
260 pkg
->size
= strtoul(tmp
, NULL
, 0);
262 } else if ((mask
& PFM_SOURCE
) && is_field("Source", line
))
263 pkg
->source
= parse_simple("Source", line
);
264 else if ((mask
& PFM_STATUS
) && is_field("Status", line
))
265 parse_status(pkg
, line
);
266 else if ((mask
& PFM_SUGGESTS
) && is_field("Suggests", line
))
267 pkg
->suggests_str
= parse_comma_separated(line
, &pkg
->suggests_count
);
271 if ((mask
& PFM_TAGS
) && is_field("Tags", line
))
272 pkg
->tags
= parse_simple("Tags", line
);
276 if ((mask
& PFM_VERSION
) && is_field("Version", line
))
277 parse_version(pkg
, line
);
281 if ((mask
& PFM_DESCRIPTION
) && reading_description
) {
282 pkg
->description
= xrealloc(pkg
->description
,
283 strlen(pkg
->description
)
284 + 1 + strlen(line
) + 1);
285 strcat(pkg
->description
, "\n");
286 strcat(pkg
->description
, (line
));
287 goto dont_reset_flags
;
288 } else if ((mask
&& PFM_CONFFILES
) && reading_conffiles
) {
289 parse_conffiles(pkg
, line
);
290 goto dont_reset_flags
;
295 /* For package lists, signifies end of package. */
296 if(line_is_blank(line
)) {
302 reading_description
= 0;
303 reading_conffiles
= 0;
311 pkg_parse_from_stream_nomalloc(pkg_t
*pkg
, FILE *fp
, uint mask
,
312 char **buf0
, size_t buf0len
)
326 if (fgets(buf
, (int)buflen
, fp
) == NULL
) {
328 opkg_perror(ERROR
, "fgets");
330 } else if (strlen(*buf0
) == buf0len
-1) {
331 opkg_msg(ERROR
, "Missing new line character"
332 " at end of file!\n");
333 pkg_parse_line(pkg
, *buf0
, mask
);
338 nl
= strchr(buf
, '\n');
340 if (strlen(buf
) < buflen
-1) {
342 * Line could be exactly buflen-1 long and
343 * missing a newline, but we won't know until
344 * fgets fails to read more data.
346 opkg_msg(ERROR
, "Missing new line character"
347 " at end of file!\n");
348 pkg_parse_line(pkg
, *buf0
, mask
);
351 if (buf0len
>= EXCESSIVE_LINE_LEN
) {
352 opkg_msg(ERROR
, "Excessively long line at "
353 "%d. Corrupt file?\n",
360 * Realloc and point buf past the data already read,
361 * at the NULL terminator inserted by fgets.
362 * |<--------------- buf0len ----------------->|
363 * | |<------- buflen ---->|
364 * |---------------------|---------------------|
369 *buf0
= xrealloc(*buf0
, buf0len
);
370 buf
= *buf0
+ buflen
-2;
379 if (pkg_parse_line(pkg
, *buf0
, mask
))
387 if (pkg
->name
== NULL
) {
388 /* probably just a blank line */
396 pkg_parse_from_stream(pkg_t
*pkg
, FILE *fp
, uint mask
)
400 const size_t len
= 4096;
403 ret
= pkg_parse_from_stream_nomalloc(pkg
, fp
, mask
, &buf
, len
);