From a71e5ecc5784fdb03f5ea4edc4eb17c9b00e24bf Mon Sep 17 00:00:00 2001
From: javiplx@gmail.com <javiplx@gmail.com@e8e0d7a0-c8d9-11dd-a880-a1081c7ac358>
Date: Thu, 07 Apr 2011 11:35:24 -0400
Subject: Code to handle the apt-alike configuration entries

git-svn-id: http://opkg.googlecode.com/svn/trunk@612 e8e0d7a0-c8d9-11dd-a880-a1081c7ac358
---
(limited to 'libopkg/release_parse.c')

diff --git a/libopkg/release_parse.c b/libopkg/release_parse.c
new file mode 100644
index 0000000..e1d9a84
--- /dev/null
+++ b/libopkg/release_parse.c
@@ -0,0 +1,135 @@
+/* release_parse.c - the opkg package management system
+
+   Copyright (C) 2010,2011 Javier Palacios
+
+   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 "release.h"
+#include "release_parse.h"
+#include "libbb/libbb.h"
+#include "parse_util.h"
+
+static int
+release_parse_line(release_t *release, const char *line)
+{
+	int ret = 0;
+	unsigned int count = 0;
+	char **list = 0;
+	static int reading_md5sums = 0;
+#ifdef HAVE_SHA256
+	static int reading_sha256sums = 0;
+#endif
+
+	switch (*line) {
+	case 'A':
+		if (is_field("Architectures", line)) {
+			release->architectures = parse_list(line, &release->architectures_count, ' ', 0);
+		}
+		break;
+
+	case 'C':
+		if (is_field("Codename", line)) {
+			release->name = parse_simple("Codename", line);
+	    	}
+		else if (is_field("Components", line)) {
+			release->components = parse_list(line, &release->components_count, ' ', 0);
+	    	}
+		break;
+
+	case 'D':
+		if (is_field("Date", line)) {
+			release->datestring = parse_simple("Date", line);
+		}
+		break;
+
+	case 'M':
+		if (is_field("MD5sum", line)) {
+			reading_md5sums = 1;
+			if (release->md5sums == NULL) {
+			     release->md5sums = xcalloc(1, sizeof(cksum_list_t));
+			     cksum_list_init(release->md5sums);
+			}
+			goto dont_reset_flags;
+	    	}
+		break;
+
+#ifdef HAVE_SHA256
+	case 'S':
+		if (is_field("SHA256", line)) {
+			reading_sha256sums = 1;
+			if (release->sha256sums == NULL) {
+			     release->sha256sums = xcalloc(1, sizeof(cksum_list_t));
+			     cksum_list_init(release->sha256sums);
+			}
+			goto dont_reset_flags;
+	    	}
+		break;
+#endif
+
+	case ' ':
+		if (reading_md5sums) {
+			list = parse_list(line, &count, ' ', 1);
+			cksum_list_append(release->md5sums, list);
+			goto dont_reset_flags;
+		}
+#ifdef HAVE_SHA256
+		else if (reading_sha256sums) {
+			list = parse_list(line, &count, ' ', 1);
+			cksum_list_append(release->sha256sums, list);
+			goto dont_reset_flags;
+		}
+#endif
+		break;
+
+	default:
+		ret = 1;
+	}
+
+	reading_md5sums = 0;
+#ifdef HAVE_SHA256
+	reading_sha256sums = 0;
+#endif
+
+dont_reset_flags:
+
+	return ret;
+}
+
+int
+release_parse_from_stream(release_t *release, FILE *fp)
+{
+	int ret = 0;
+	char *buf = NULL;
+	size_t buflen, nread;
+
+	nread = getline(&buf, &buflen, fp);
+	while ( nread != -1 ) {
+		if (buf[nread-1] == '\n') buf[nread-1] = '\0';
+		if (release_parse_line(release, buf))
+                        opkg_msg(DEBUG, "Failed to parse release line for %s:\n\t%s\n",
+					release->name, buf);
+		nread = getline(&buf, &buflen, fp);
+	}
+
+	if (!feof(fp)) {
+		opkg_perror(ERROR, "Problems reading Release file for %sd\n", release->name);
+		ret = -1;
+	}
+
+	free(buf);
+	return ret;
+}
+
--
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