1 /* pkg_parse.c - the opkg package management system
3 Copyright (C) 2009 Ubiq Technologies <graham.gower@gmail.com>
6 Copyright (C) 2002 Compaq Computer Corporation
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2, or (at
11 your option) any later version.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
25 #include "opkg_utils.h"
26 #include "pkg_parse.h"
27 #include "libbb/libbb.h"
29 #include "parse_util.h"
32 parse_status(pkg_t *pkg, const char *sstr)
34 char sw_str[64], sf_str[64], ss_str[64];
36 if (sscanf(sstr, "Status: %63s %63s %63s",
37 sw_str, sf_str, ss_str) != 3) {
38 opkg_msg(ERROR, "Failed to parse Status line for %s\n",
43 pkg->state_want = pkg_state_want_from_str(sw_str);
44 pkg->state_flag = pkg_state_flag_from_str(sf_str);
45 pkg->state_status = pkg_state_status_from_str(ss_str);
49 parse_conffiles(pkg_t *pkg, const char *cstr)
51 char file_name[1024], md5sum[35];
53 if (sscanf(cstr, "%1023s %34s", file_name, md5sum) != 2) {
54 opkg_msg(ERROR, "Failed to parse Conffiles line for %s\n",
59 conffile_list_append(&pkg->conffiles, file_name, md5sum);
63 parse_version(pkg_t *pkg, const char *vstr)
67 if (strncmp(vstr, "Version:", 8) == 0)
70 while (*vstr && isspace(*vstr))
73 colon = strchr(vstr, ':');
76 pkg->epoch = strtoul(vstr, NULL, 10);
78 opkg_perror(ERROR, "%s: invalid epoch", pkg->name);
85 pkg->version = xstrdup(vstr);
86 pkg->revision = strrchr(pkg->version,'-');
89 *pkg->revision++ = '\0';
95 get_arch_priority(const char *arch)
97 nv_pair_list_elt_t *l;
99 list_for_each_entry(l , &conf->arch_list.head, node) {
100 nv_pair_t *nv = (nv_pair_t *)l->data;
101 if (strcmp(nv->name, arch) == 0)
102 return strtol(nv->value, NULL, 0);
108 pkg_parse_line(pkg_t *pkg, const char *line, uint mask)
110 /* these flags are a bit hackish... */
111 static int reading_conffiles = 0, reading_description = 0;
114 /* Exclude globally masked fields. */
117 /* Flip the semantics of the mask. */
122 if ((mask & PFM_ARCHITECTURE ) && is_field("Architecture", line)) {
123 pkg->architecture = parse_simple("Architecture", line);
124 pkg->arch_priority = get_arch_priority(pkg->architecture);
125 } else if ((mask & PFM_AUTO_INSTALLED) && is_field("Auto-Installed", line)) {
126 char *tmp = parse_simple("Auto-Installed", line);
127 if (strcmp(tmp, "yes") == 0)
128 pkg->auto_installed = 1;
134 if ((mask & PFM_CONFFILES) && is_field("Conffiles", line)) {
135 reading_conffiles = 1;
136 reading_description = 0;
137 goto dont_reset_flags;
139 else if ((mask & PFM_CONFLICTS) && is_field("Conflicts", line))
140 pkg->conflicts_str = parse_list(line, &pkg->conflicts_count, ',', 0);
144 if ((mask & PFM_DESCRIPTION) && is_field("Description", line)) {
145 pkg->description = parse_simple("Description", line);
146 reading_conffiles = 0;
147 reading_description = 1;
148 goto dont_reset_flags;
149 } else if ((mask & PFM_DEPENDS) && is_field("Depends", line))
150 pkg->depends_str = parse_list(line, &pkg->depends_count, ',', 0);
154 if((mask & PFM_ESSENTIAL) && is_field("Essential", line)) {
155 char *tmp = parse_simple("Essential", line);
156 if (strcmp(tmp, "yes") == 0)
163 if((mask & PFM_FILENAME) && is_field("Filename", line))
164 pkg->filename = parse_simple("Filename", line);
168 if ((mask & PFM_INSTALLED_SIZE) && is_field("Installed-Size", line)) {
169 char *tmp = parse_simple("Installed-Size", line);
170 pkg->installed_size = strtoul(tmp, NULL, 0);
172 } else if ((mask & PFM_INSTALLED_TIME) && is_field("Installed-Time", line)) {
173 char *tmp = parse_simple("Installed-Time", line);
174 pkg->installed_time = strtoul(tmp, NULL, 0);
180 if ((mask & PFM_MD5SUM) && is_field("MD5sum:", line))
181 pkg->md5sum = parse_simple("MD5sum", line);
182 /* The old opkg wrote out status files with the wrong
183 * case for MD5sum, let's parse it either way */
184 else if ((mask & PFM_MD5SUM) && is_field("MD5Sum:", line))
185 pkg->md5sum = parse_simple("MD5Sum", line);
186 else if((mask & PFM_MAINTAINER) && is_field("Maintainer", line))
187 pkg->maintainer = parse_simple("Maintainer", line);
191 if ((mask & PFM_PACKAGE) && is_field("Package", line))
192 pkg->name = parse_simple("Package", line);
193 else if ((mask & PFM_PRIORITY) && is_field("Priority", line))
194 pkg->priority = parse_simple("Priority", line);
195 else if ((mask & PFM_PROVIDES) && is_field("Provides", line))
196 pkg->provides_str = parse_list(line, &pkg->provides_count, ',', 0);
197 else if ((mask & PFM_PRE_DEPENDS) && is_field("Pre-Depends", line))
198 pkg->pre_depends_str = parse_list(line, &pkg->pre_depends_count, ',', 0);
202 if ((mask & PFM_RECOMMENDS) && is_field("Recommends", line))
203 pkg->recommends_str = parse_list(line, &pkg->recommends_count, ',', 0);
204 else if ((mask & PFM_REPLACES) && is_field("Replaces", line))
205 pkg->replaces_str = parse_list(line, &pkg->replaces_count, ',', 0);
210 if ((mask & PFM_SECTION) && is_field("Section", line))
211 pkg->section = parse_simple("Section", line);
213 else if ((mask & PFM_SHA256SUM) && is_field("SHA256sum", line))
214 pkg->sha256sum = parse_simple("SHA256sum", line);
216 else if ((mask & PFM_SIZE) && is_field("Size", line)) {
217 char *tmp = parse_simple("Size", line);
218 pkg->size = strtoul(tmp, NULL, 0);
220 } else if ((mask & PFM_SOURCE) && is_field("Source", line))
221 pkg->source = parse_simple("Source", line);
222 else if ((mask & PFM_STATUS) && is_field("Status", line))
223 parse_status(pkg, line);
224 else if ((mask & PFM_SUGGESTS) && is_field("Suggests", line))
225 pkg->suggests_str = parse_list(line, &pkg->suggests_count, ',', 0);
229 if ((mask & PFM_TAGS) && is_field("Tags", line))
230 pkg->tags = parse_simple("Tags", line);
234 if ((mask & PFM_VERSION) && is_field("Version", line))
235 parse_version(pkg, line);
239 if ((mask & PFM_DESCRIPTION) && reading_description) {
240 pkg->description = xrealloc(pkg->description,
241 strlen(pkg->description)
242 + 1 + strlen(line) + 1);
243 strcat(pkg->description, "\n");
244 strcat(pkg->description, (line));
245 goto dont_reset_flags;
246 } else if ((mask & PFM_CONFFILES) && reading_conffiles) {
247 parse_conffiles(pkg, line);
248 goto dont_reset_flags;
253 /* For package lists, signifies end of package. */
254 if(line_is_blank(line)) {
260 reading_description = 0;
261 reading_conffiles = 0;
269 pkg_parse_from_stream_nomalloc(pkg_t *pkg, FILE *fp, uint mask,
270 char **buf0, size_t buf0len)
284 if (fgets(buf, (int)buflen, fp) == NULL) {
286 opkg_perror(ERROR, "fgets");
288 } else if (strlen(*buf0) == buf0len-1) {
289 opkg_msg(ERROR, "Missing new line character"
290 " at end of file!\n");
291 pkg_parse_line(pkg, *buf0, mask);
296 nl = strchr(buf, '\n');
298 if (strlen(buf) < buflen-1) {
300 * Line could be exactly buflen-1 long and
301 * missing a newline, but we won't know until
302 * fgets fails to read more data.
304 opkg_msg(ERROR, "Missing new line character"
305 " at end of file!\n");
306 pkg_parse_line(pkg, *buf0, mask);
309 if (buf0len >= EXCESSIVE_LINE_LEN) {
310 opkg_msg(ERROR, "Excessively long line at "
311 "%d. Corrupt file?\n",
318 * Realloc and point buf past the data already read,
319 * at the NULL terminator inserted by fgets.
320 * |<--------------- buf0len ----------------->|
321 * | |<------- buflen ---->|
322 * |---------------------|---------------------|
327 *buf0 = xrealloc(*buf0, buf0len);
328 buf = *buf0 + buflen -2;
337 if (pkg_parse_line(pkg, *buf0, mask))
345 if (pkg->name == NULL) {
346 /* probably just a blank line */
354 pkg_parse_from_stream(pkg_t *pkg, FILE *fp, uint mask)
358 const size_t len = 4096;
361 ret = pkg_parse_from_stream_nomalloc(pkg, fp, mask, &buf, len);