X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=extras%2Fscsi_id%2Fscsi_id.c;h=a46d1b377da97dfd08075a76b37f6ebdc4da0cac;hb=b5d88a0cfe49ca34db713b42ea031857395debc4;hp=4003ee6af5a66dcaf436cf06a7097eb144856240;hpb=aaff09a30ab849186c0d4ad8bde83876d7a1a63d;p=elogind.git

diff --git a/extras/scsi_id/scsi_id.c b/extras/scsi_id/scsi_id.c
index 4003ee6af..a46d1b377 100644
--- a/extras/scsi_id/scsi_id.c
+++ b/extras/scsi_id/scsi_id.c
@@ -52,7 +52,7 @@
  * options are not supported, but other code is still left in place for
  * now.
  */
-static const char short_options[] = "bd:f:gip:s:uvVx";
+static const char short_options[] = "abd:f:gip:s:uvVx";
 /*
  * Just duplicate per dev options.
  */
@@ -61,6 +61,7 @@ static const char dev_short_options[] = "bgp:";
 char sysfs_mnt_path[SYSFS_PATH_MAX];
 
 static int all_good;
+static int always_info;
 static char *default_callout;
 static int dev_specified;
 static int sys_specified;
@@ -100,10 +101,9 @@ void log_message (int level, const char *format, ...)
 	return;
 }
 
-static void set_str(char *to, const unsigned char *from, int count)
+static void set_str(char *to, const char *from, size_t count)
 {
-	int i, j;
-	int len;
+	size_t i, j, len;
 
 	/* strip trailing whitespace */
 	len = strnlen(from, count);
@@ -133,42 +133,42 @@ static void set_str(char *to, const unsigned char *from, int count)
 	to[j] = '\0';
 }
 
-static void set_type(char *to, const char *from, int count)
+static void set_type(char *to, const char *from, size_t len)
 {
 	int type_num;
 	char *eptr;
+	char *type = "generic";
 
 	type_num = strtoul(from, &eptr, 0);
 	if (eptr != from) {
 		switch (type_num) {
 		case 0:
-			sprintf(to, "disk");
+			type = "disk";
 			break;
 		case 1:
-			sprintf(to, "tape");
+			type = "tape";
 			break;
 		case 4:
-			sprintf(to, "optical");
+			type = "optical";
 			break;
 		case 5:
-			sprintf(to, "cd");
+			type = "cd";
 			break;
 		case 7:
-			sprintf(to, "optical");
+			type = "optical";
 			break;
 		case 0xe:
-			sprintf(to, "disk");
+			type = "disk";
 			break;
 		case 0xf:
-			sprintf(to, "optical");
+			type = "optical";
 			break;
 		default:
-			sprintf(to, "generic");
 			break;
 		}
-	} else {
-		sprintf(to, "generic");
 	}
+	strncpy(to, type, len);
+	to[len-1] = '\0';
 }
 
 static int get_major_minor(struct sysfs_class_device *class_dev, int *maj,
@@ -475,7 +475,7 @@ static int set_options(int argc, char **argv, const char *short_opts,
 	 */
 	optind = 1;
 	while (1) {
-		option = getopt(argc, argv, short_options);
+		option = getopt(argc, argv, short_opts);
 		if (option == -1)
 			break;
 
@@ -485,6 +485,9 @@ static int set_options(int argc, char **argv, const char *short_opts,
 			dprintf("option '%c'\n", option);
 
 		switch (option) {
+		case 'a':
+			always_info = 1;
+			break;
 		case 'b':
 			all_good = 0;
 			break;
@@ -598,7 +601,7 @@ static int per_dev_options(struct sysfs_device *scsi_dev, int *good_bad,
 			    scsi_dev->name);
 		return -1;
 	}
-	set_type(type_str, type->value, sizeof(type_str)-1);
+	set_type(type_str, type->value, sizeof(type_str));
 
 	type = sysfs_get_device_attr(scsi_dev, "rev");
 	if (!type) {
@@ -810,7 +813,7 @@ static int scsi_id(const char *target_path, char *maj_min_dev)
 		retval = 1;
 	} else if (scsi_get_serial(scsi_dev, maj_min_dev, page_code,
 				   serial, MAX_SERIAL_LEN)) {
-		retval = 1;
+		retval = always_info?0:1;
 	} else {
 		retval = 0;
 	}
@@ -823,6 +826,7 @@ static int scsi_id(const char *target_path, char *maj_min_dev)
 			set_str(serial_str, serial, sizeof(serial_str));
 			printf("ID_SERIAL=%s\n", serial_str);
 			printf("ID_TYPE=%s\n", type_str);
+			printf("ID_BUS=scsi\n");
 		} else {
 			if (reformat_serial)
 				format_serial(serial);