X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=extras%2Fata_id%2Fata_id.c;h=a4f73b8dfd8d6719ade449147a6fa58f7669fb88;hp=2840e914579c4118a0d6941ec91bd1c8522bae9a;hb=d4f687c013a18010fdc2ddf937fad064343e635a;hpb=70721db6d7ba0d4f3ac5c17f2cedac056065ad8a

diff --git a/extras/ata_id/ata_id.c b/extras/ata_id/ata_id.c
index 2840e9145..a4f73b8df 100644
--- a/extras/ata_id/ata_id.c
+++ b/extras/ata_id/ata_id.c
@@ -1,21 +1,20 @@
 /*
  * ata_id - reads product/serial number from ATA drives
  *
- * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2005-2008 Kay Sievers <kay.sievers@vrfy.org>
  *
- *	This library is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU Lesser General Public
- *	License as published by the Free Software Foundation; either
- *	version 2.1 of the License, or (at your option) any later version.
+ * 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 of the License, or
+ * (at your option) any later version.
  *
- *	This library 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
- *	Lesser General Public License for more details.
+ * 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.
  *
- *	You should have received a copy of the GNU Lesser General Public
- *	License along with this library; if not, write to the Free Software
- *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef _GNU_SOURCE
@@ -27,40 +26,23 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <ctype.h>
+#include <string.h>
 #include <errno.h>
+#include <getopt.h>
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <linux/types.h>
 #include <linux/hdreg.h>
 
-#include "../../logging.h"
-#include "../../udev_utils.h"
+#include "../../udev/udev.h"
 
-#ifdef USE_LOG
-void log_message(int priority, const char *format, ...)
+static void log_fn(struct udev *udev, int priority,
+		   const char *file, int line, const char *fn,
+		   const char *format, va_list args)
 {
-	va_list args;
-	static int udev_log = -1;
-
-	if (udev_log == -1) {
-		const char *value;
-
-		value = getenv("UDEV_LOG");
-		if (value)
-			udev_log = log_priority(value);
-		else
-			udev_log = LOG_ERR;
-	}
-
-	if (priority > udev_log)
-		return;
-
-	va_start(args, format);
 	vsyslog(priority, format, args);
-	va_end(args);
 }
-#endif
 
 static void set_str(char *to, const char *from, size_t count)
 {
@@ -68,7 +50,7 @@ static void set_str(char *to, const char *from, size_t count)
 
 	/* strip trailing whitespace */
 	len = strnlen(from, count);
-	while (isspace(from[len-1]))
+	while (len && isspace(from[len-1]))
 		len--;
 
 	/* strip leading whitespace */
@@ -96,45 +78,71 @@ static void set_str(char *to, const char *from, size_t count)
 
 int main(int argc, char *argv[])
 {
+	struct udev *udev;
 	struct hd_driveid id;
 	char model[41];
 	char serial[21];
 	char revision[9];
 	const char *node = NULL;
-	int i;
 	int export = 0;
 	int fd;
 	int rc = 0;
+	static const struct option options[] = {
+		{ "export", no_argument, NULL, 'x' },
+		{ "help", no_argument, NULL, 'h' },
+		{}
+	};
+
+	udev = udev_new();
+	if (udev == NULL)
+		goto exit;
 
 	logging_init("ata_id");
+	udev_set_log_fn(udev, log_fn);
+
+	while (1) {
+		int option;
 
-	for (i = 1 ; i < argc; i++) {
-		char *arg = argv[i];
+		option = getopt_long(argc, argv, "xh", options, NULL);
+		if (option == -1)
+			break;
 
-		if (strcmp(arg, "--export") == 0) {
+		switch (option) {
+		case 'x':
 			export = 1;
-		} else
-			node = arg;
+			break;
+		case 'h':
+			printf("Usage: ata_id [--export] [--help] <device>\n"
+			       "  --export    print values as environemt keys\n"
+			       "  --help      print this help text\n\n");
+		default:
+			rc = 1;
+			goto exit;
+		}
 	}
-	if (!node) {
-		err("no node specified");
+
+	node = argv[optind];
+	if (node == NULL) {
+		err(udev, "no node specified\n");
 		rc = 1;
 		goto exit;
 	}
 
-	fd = open(node, O_RDONLY);
-	if (fd < 0)
-		if (errno == ENOMEDIUM)
-			fd = open(node, O_RDONLY|O_NONBLOCK);
+	fd = open(node, O_RDONLY|O_NONBLOCK);
 	if (fd < 0) {
-		err("unable to open '%s'", node);
+		err(udev, "unable to open '%s'\n", node);
 		rc = 1;
 		goto exit;
 	}
 
 	if (ioctl(fd, HDIO_GET_IDENTITY, &id)) {
-		err("HDIO_GET_IDENTITY failed for '%s'", node);
-		rc = 3;
+		if (errno == ENOTTY) {
+			info(udev, "HDIO_GET_IDENTITY unsupported for '%s'\n", node);
+			rc = 2;
+		} else {
+			err(udev, "HDIO_GET_IDENTITY failed for '%s'\n", node);
+			rc = 3;
+		}
 		goto close;
 	}
 
@@ -179,6 +187,7 @@ int main(int argc, char *argv[])
 close:
 	close(fd);
 exit:
+	udev_unref(udev);
 	logging_close();
 	return rc;
 }