added info retrieval

Change-Id: I6f91b15e87308cf01db4ddafa3c2715c251f5fe5

1 files changed, 182 insertions, 0 deletions

diff --git a/src/wgtpkg-info.c b/src/wgtpkg-info.c
new file mode 100644
index 0000000..1a7724b
--- /dev/null
+++ b/src/wgtpkg-info.c
@@ -0,0 +1,182 @@
+/*
+ Copyright 2015 IoT.bzh
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#define _BSD_SOURCE /* see readdir */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include <syslog.h>
+#include <getopt.h>
+
+#include "verbose.h"
+#include "wgtpkg.h"
+#include "wgt.h"
+#include "wgt-info.h"
+
+static const char appname[] = "wgtpkg-info";
+
+static void show(const char *wgtfile);
+
+static void usage()
+{
+	printf(
+		"usage: %s [-f] [-q] [-v] wgtfile...\n"
+		"\n"
+		"   -q            quiet\n"
+		"   -v            verbose\n"
+		"\n",
+		appname
+	);
+}
+
+static struct option options[] = {
+	{ "help",        no_argument,       NULL, 'h' },
+	{ "quiet",       no_argument,       NULL, 'q' },
+	{ "verbose",     no_argument,       NULL, 'v' },
+	{ NULL, 0, NULL, 0 }
+};
+
+/* info the widgets of the list */
+int main(int ac, char **av)
+{
+	int i;
+	char *wpath;
+
+	openlog(appname, LOG_PERROR, LOG_USER);
+
+	xmlsec_init();
+
+	for (;;) {
+		i = getopt_long(ac, av, "hqv", options, NULL);
+		if (i < 0)
+			break;
+		switch (i) {
+		case 'h':
+			usage();
+			return 0;
+		case 'q':
+			if (verbosity)
+				verbosity--;
+			break;
+		case 'v':
+			verbosity++;
+			break;
+		case ':':
+			syslog(LOG_ERR, "missing argument value");
+			return 1;
+		default:
+			syslog(LOG_ERR, "unrecognized option");
+			return 1;
+		}
+	}
+
+	/* canonic names for files */
+	av += optind;
+	for (i = 0 ; av[i] != NULL ; i++) {
+		wpath = realpath(av[i], NULL);
+		if (wpath == NULL) {
+			syslog(LOG_ERR, "error while getting realpath of %dth widget: %s", i+1, av[i]);
+			return 1;
+		}
+		av[i] = wpath;
+	}
+
+	/* info widgets */
+	for ( ; *av ; av++)
+		show(*av);
+
+	return 0;
+}
+
+static struct wgt *wgt_at_workdir()
+{
+	int rc, wfd;
+	struct wgt *wgt;
+
+	wfd = workdirfd();
+	if (wfd < 0)
+		return NULL;
+
+	wgt = wgt_create();
+	if (!wgt) {
+		syslog(LOG_ERR, "failed to allocate wgt");
+		close(wfd);
+		return NULL;
+	}
+
+	rc = wgt_connectat(wgt, wfd, NULL);
+	if (rc) {
+		syslog(LOG_ERR, "failed to connect wgt to workdir");
+		close(wfd);
+		wgt_unref(wgt);
+		return NULL;
+	}
+
+	return wgt;
+}
+
+
+static int check_and_show()
+{
+	struct wgt *wgt;
+	struct wgt_info *ifo;
+
+	wgt = wgt_at_workdir();
+	if (!wgt)
+		return -1;
+
+	ifo = wgt_info_get(wgt, 1, 1, 1);
+	if (!ifo) {
+		wgt_unref(wgt);
+		return -1;
+	}
+	wgt_info_dump(ifo, 1, "");
+	wgt_info_unref(ifo);
+	wgt_unref(wgt);
+	return 0;
+}
+
+/* install the widget of the file */
+static void show(const char *wgtfile)
+{
+	notice("-- INFO for widget %s --", wgtfile);
+
+	/* workdir */
+	if (make_workdir_base("/tmp", "UNPACK", 0)) {
+		syslog(LOG_ERR, "failed to create a working directory");
+		return;
+	}
+
+	if (enter_workdir(0))
+		goto error2;
+
+	if (zread(wgtfile, 0))
+		goto error2;
+
+	if (check_all_signatures())
+		goto error2;
+
+	check_and_show();
+	
+error2:
+	remove_workdir();
+	return;
+}
+