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authorP. J. McDermott <pjm@nac.net>2012-02-09 10:56:43 (EST)
committer P. J. McDermott <pjm@nac.net>2012-02-09 10:56:43 (EST)
commitf431cd1a48a6a5186633bf5f16a2d21cb4399e8c (patch)
tree337e36fd9d7884fcf76ba769ab7b0039f52d9d31 /src/libopkg/.svn/text-base/pkg_parse.c.svn-base
Initial commit.
TODO: Copyright information. Including source code and a patch to add files generated by GNU Autoconf is not very pretty... Running 'make dist' in the SVN trunk to generate a source archive might be better.
Diffstat (limited to 'src/libopkg/.svn/text-base/pkg_parse.c.svn-base')
-rw-r--r--src/libopkg/.svn/text-base/pkg_parse.c.svn-base285
1 files changed, 285 insertions, 0 deletions
diff --git a/src/libopkg/.svn/text-base/pkg_parse.c.svn-base b/src/libopkg/.svn/text-base/pkg_parse.c.svn-base
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+++ b/src/libopkg/.svn/text-base/pkg_parse.c.svn-base
@@ -0,0 +1,285 @@
+/* pkg_parse.c - the opkg package management system
+
+ Copyright (C) 2009 Ubiq Technologies <graham.gower@gmail.com>
+
+ Steven M. Ayer
+ Copyright (C) 2002 Compaq Computer Corporation
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+*/
+
+#include "config.h"
+
+#include <stdio.h>
+#include <ctype.h>
+
+#include "opkg_utils.h"
+#include "pkg_parse.h"
+#include "libbb/libbb.h"
+
+#include "parse_util.h"
+
+static void
+parse_status(pkg_t *pkg, const char *sstr)
+{
+ char sw_str[64], sf_str[64], ss_str[64];
+
+ if (sscanf(sstr, "Status: %63s %63s %63s",
+ sw_str, sf_str, ss_str) != 3) {
+ opkg_msg(ERROR, "Failed to parse Status line for %s\n",
+ pkg->name);
+ return;
+ }
+
+ pkg->state_want = pkg_state_want_from_str(sw_str);
+ pkg->state_flag = pkg_state_flag_from_str(sf_str);
+ pkg->state_status = pkg_state_status_from_str(ss_str);
+}
+
+static void
+parse_conffiles(pkg_t *pkg, const char *cstr)
+{
+ char file_name[1024], md5sum[35];
+
+ if (sscanf(cstr, "%1023s %34s", file_name, md5sum) != 2) {
+ opkg_msg(ERROR, "Failed to parse Conffiles line for %s\n",
+ pkg->name);
+ return;
+ }
+
+ conffile_list_append(&pkg->conffiles, file_name, md5sum);
+}
+
+int
+parse_version(pkg_t *pkg, const char *vstr)
+{
+ char *colon;
+
+ if (strncmp(vstr, "Version:", 8) == 0)
+ vstr += 8;
+
+ while (*vstr && isspace(*vstr))
+ vstr++;
+
+ colon = strchr(vstr, ':');
+ if (colon) {
+ errno = 0;
+ pkg->epoch = strtoul(vstr, NULL, 10);
+ if (errno) {
+ opkg_perror(ERROR, "%s: invalid epoch", pkg->name);
+ }
+ vstr = ++colon;
+ } else {
+ pkg->epoch= 0;
+ }
+
+ pkg->version = xstrdup(vstr);
+ pkg->revision = strrchr(pkg->version,'-');
+
+ if (pkg->revision)
+ *pkg->revision++ = '\0';
+
+ return 0;
+}
+
+static int
+get_arch_priority(const char *arch)
+{
+ nv_pair_list_elt_t *l;
+
+ list_for_each_entry(l , &conf->arch_list.head, node) {
+ nv_pair_t *nv = (nv_pair_t *)l->data;
+ if (strcmp(nv->name, arch) == 0)
+ return strtol(nv->value, NULL, 0);
+ }
+ return 0;
+}
+
+int
+pkg_parse_line(void *ptr, const char *line, uint mask)
+{
+ pkg_t *pkg = (pkg_t *) ptr;
+
+ /* these flags are a bit hackish... */
+ static int reading_conffiles = 0, reading_description = 0;
+ int ret = 0;
+
+ /* Exclude globally masked fields. */
+ mask |= conf->pfm;
+
+ /* Flip the semantics of the mask. */
+ mask ^= PFM_ALL;
+
+ switch (*line) {
+ case 'A':
+ if ((mask & PFM_ARCHITECTURE ) && is_field("Architecture", line)) {
+ pkg->architecture = parse_simple("Architecture", line);
+ pkg->arch_priority = get_arch_priority(pkg->architecture);
+ } else if ((mask & PFM_AUTO_INSTALLED) && is_field("Auto-Installed", line)) {
+ char *tmp = parse_simple("Auto-Installed", line);
+ if (strcmp(tmp, "yes") == 0)
+ pkg->auto_installed = 1;
+ free(tmp);
+ }
+ break;
+
+ case 'C':
+ if ((mask & PFM_CONFFILES) && is_field("Conffiles", line)) {
+ reading_conffiles = 1;
+ reading_description = 0;
+ goto dont_reset_flags;
+ }
+ else if ((mask & PFM_CONFLICTS) && is_field("Conflicts", line))
+ pkg->conflicts_str = parse_list(line, &pkg->conflicts_count, ',', 0);
+ break;
+
+ case 'D':
+ if ((mask & PFM_DESCRIPTION) && is_field("Description", line)) {
+ pkg->description = parse_simple("Description", line);
+ reading_conffiles = 0;
+ reading_description = 1;
+ goto dont_reset_flags;
+ } else if ((mask & PFM_DEPENDS) && is_field("Depends", line))
+ pkg->depends_str = parse_list(line, &pkg->depends_count, ',', 0);
+ break;
+
+ case 'E':
+ if((mask & PFM_ESSENTIAL) && is_field("Essential", line)) {
+ char *tmp = parse_simple("Essential", line);
+ if (strcmp(tmp, "yes") == 0)
+ pkg->essential = 1;
+ free(tmp);
+ }
+ break;
+
+ case 'F':
+ if((mask & PFM_FILENAME) && is_field("Filename", line))
+ pkg->filename = parse_simple("Filename", line);
+ break;
+
+ case 'I':
+ if ((mask & PFM_INSTALLED_SIZE) && is_field("Installed-Size", line)) {
+ char *tmp = parse_simple("Installed-Size", line);
+ pkg->installed_size = strtoul(tmp, NULL, 0);
+ free (tmp);
+ } else if ((mask & PFM_INSTALLED_TIME) && is_field("Installed-Time", line)) {
+ char *tmp = parse_simple("Installed-Time", line);
+ pkg->installed_time = strtoul(tmp, NULL, 0);
+ free (tmp);
+ }
+ break;
+
+ case 'M':
+ if ((mask & PFM_MD5SUM) && is_field("MD5sum:", line))
+ pkg->md5sum = parse_simple("MD5sum", line);
+ /* The old opkg wrote out status files with the wrong
+ * case for MD5sum, let's parse it either way */
+ else if ((mask & PFM_MD5SUM) && is_field("MD5Sum:", line))
+ pkg->md5sum = parse_simple("MD5Sum", line);
+ else if((mask & PFM_MAINTAINER) && is_field("Maintainer", line))
+ pkg->maintainer = parse_simple("Maintainer", line);
+ break;
+
+ case 'P':
+ if ((mask & PFM_PACKAGE) && is_field("Package", line))
+ pkg->name = parse_simple("Package", line);
+ else if ((mask & PFM_PRIORITY) && is_field("Priority", line))
+ pkg->priority = parse_simple("Priority", line);
+ else if ((mask & PFM_PROVIDES) && is_field("Provides", line))
+ pkg->provides_str = parse_list(line, &pkg->provides_count, ',', 0);
+ else if ((mask & PFM_PRE_DEPENDS) && is_field("Pre-Depends", line))
+ pkg->pre_depends_str = parse_list(line, &pkg->pre_depends_count, ',', 0);
+ break;
+
+ case 'R':
+ if ((mask & PFM_RECOMMENDS) && is_field("Recommends", line))
+ pkg->recommends_str = parse_list(line, &pkg->recommends_count, ',', 0);
+ else if ((mask & PFM_REPLACES) && is_field("Replaces", line))
+ pkg->replaces_str = parse_list(line, &pkg->replaces_count, ',', 0);
+
+ break;
+
+ case 'S':
+ if ((mask & PFM_SECTION) && is_field("Section", line))
+ pkg->section = parse_simple("Section", line);
+#ifdef HAVE_SHA256
+ else if ((mask & PFM_SHA256SUM) && is_field("SHA256sum", line))
+ pkg->sha256sum = parse_simple("SHA256sum", line);
+#endif
+ else if ((mask & PFM_SIZE) && is_field("Size", line)) {
+ char *tmp = parse_simple("Size", line);
+ pkg->size = strtoul(tmp, NULL, 0);
+ free (tmp);
+ } else if ((mask & PFM_SOURCE) && is_field("Source", line))
+ pkg->source = parse_simple("Source", line);
+ else if ((mask & PFM_STATUS) && is_field("Status", line))
+ parse_status(pkg, line);
+ else if ((mask & PFM_SUGGESTS) && is_field("Suggests", line))
+ pkg->suggests_str = parse_list(line, &pkg->suggests_count, ',', 0);
+ break;
+
+ case 'T':
+ if ((mask & PFM_TAGS) && is_field("Tags", line))
+ pkg->tags = parse_simple("Tags", line);
+ break;
+
+ case 'V':
+ if ((mask & PFM_VERSION) && is_field("Version", line))
+ parse_version(pkg, line);
+ break;
+
+ case ' ':
+ if ((mask & PFM_DESCRIPTION) && reading_description) {
+ pkg->description = xrealloc(pkg->description,
+ strlen(pkg->description)
+ + 1 + strlen(line) + 1);
+ strcat(pkg->description, "\n");
+ strcat(pkg->description, (line));
+ goto dont_reset_flags;
+ } else if ((mask & PFM_CONFFILES) && reading_conffiles) {
+ parse_conffiles(pkg, line);
+ goto dont_reset_flags;
+ }
+
+ /* FALLTHROUGH */
+ default:
+ /* For package lists, signifies end of package. */
+ if(line_is_blank(line)) {
+ ret = 1;
+ break;
+ }
+ }
+
+ reading_description = 0;
+ reading_conffiles = 0;
+
+dont_reset_flags:
+
+ return ret;
+}
+
+int
+pkg_parse_from_stream(pkg_t *pkg, FILE *fp, uint mask)
+{
+ int ret;
+ char *buf;
+ const size_t len = 4096;
+
+ buf = xmalloc(len);
+ ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, mask, &buf, len);
+ if (pkg->name == NULL) {
+ /* probably just a blank line */
+ ret = 1;
+ }
+ free(buf);
+
+ return ret;
+}