add -x to scsi_id to export the queried values in env format

Signed-off-by: Kay Sievers <kay.sievers@suse.de>

diff --git a/extras/scsi_id/scsi_id.c b/extras/scsi_id/scsi_id.c
index 32a96d8adb7150aaeb88b630dcb76b434ccc571d..86b84bee30e6337e4c04680d75771b98fa3003f9 100644 (file)
--- 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:uvV";
+static const char short_options[] = "bd:f:gip:s:uvVx";
 /*
  * Just duplicate per dev options.
  */
@@ -71,6 +71,9 @@ static int use_stderr;
 static int debug;
 static int hotplug_mode;
 static int reformat_serial;
+static int export;
+static char vendor_str[64];
+static char model_str[64];
 
 void log_message (int level, const char *format, ...)
 {
@@ -84,13 +87,8 @@ void log_message (int level, const char *format, ...)
                vfprintf(stderr, format, args);
        } else {
                static int logging_init = 0;
-               static unsigned char logname[32];
                if (!logging_init) {
-                       /*
-                        * klibc does not have LOG_PID.
-                        */
-                       snprintf(logname, 32, "scsi_id[%d]", getpid());
-                       openlog (logname, 0, LOG_DAEMON);
+                       openlog ("scsi_id", LOG_PID, LOG_DAEMON);
                        logging_init = 1;
                }
 
@@ -100,6 +98,34 @@ void log_message (int level, const char *format, ...)
        return;
 }
 
+static void set_str(char *to, const unsigned char *from, int count)
+{
+       int i, j;
+       int len;
+
+       len = strnlen(from, count);
+       while (isspace(from[len-1]))
+               len--;
+
+       i = 0;
+       while (isspace(from[i]) && (i < len))
+               i++;
+
+       j = 0;
+       while (i < len) {
+               switch(from[i]) {
+               case '/':
+               case ' ':
+                       to[j++] = '_';
+                       break;
+               default:
+                       to[j++] = from[i];
+               }
+               i++;
+       }
+       to[j] = '\0';
+}
+
 static int get_major_minor(struct sysfs_class_device *class_dev, int *maj,
                           int *min)
 {
@@ -465,6 +491,10 @@ static int set_options(int argc, char **argv, const char *short_opts,
                        reformat_serial = 1;
                        break;
 
+               case 'x':
+                       export = 1;
+                       break;
+
                case 'v':
                        debug++;
                        break;
@@ -507,6 +537,7 @@ static int per_dev_options(struct sysfs_device *scsi_dev, int *good_bad,
                            scsi_dev->name);
                return -1;
        }
+       set_str(vendor_str, vendor->value, sizeof(vendor_str)-1);
 
        model = sysfs_get_device_attr(scsi_dev, "model");
        if (!model) {
@@ -514,6 +545,7 @@ static int per_dev_options(struct sysfs_device *scsi_dev, int *good_bad,
                            scsi_dev->name);
                return -1;
        }
+       set_str(model_str, model->value, sizeof(model_str)-1);
 
        retval = get_file_options(vendor->value, model->value, &newargc,
                                  &newargv);
@@ -584,7 +616,7 @@ static void format_serial(char *serial)
                        *p = '_';
                p++;
        }
-       return;
+return;
 }
 
 /*
@@ -723,11 +755,19 @@ static int scsi_id(const char *target_path, char *maj_min_dev)
                retval = 0;
        }
        if (!retval) {
-               if (reformat_serial)
-                       format_serial(serial);
-               if (display_bus_id)
-                       printf("%s: ", scsi_dev->name);
-               printf("%s\n", serial);
+               if (export) {
+                       static char serial_str[64];
+                       printf("ID_VENDOR=%s\n", vendor_str);
+                       printf("ID_MODEL=%s\n", model_str);
+                       set_str(serial_str, serial, sizeof(serial_str));
+                       printf("ID_SERIAL=%s\n", serial_str);
+               } else {
+                       if (reformat_serial)
+                               format_serial(serial);
+                       if (display_bus_id)
+                               printf("%s: ", scsi_dev->name);
+                       printf("%s\n", serial);
+               }
                dprintf("%s\n", serial);
                retval = 0;
        }