[patch] detect devices from /proc/partitions

[Glenn McGrath]

This patch makes parted probe whole disks as seen by /proc/partitions.

As far as i can tell its not possible to get a list of storage devices
from userland if /proc isnt compiled in, so it needs /proc which is
unfortunate.


Glenn

diff -U 3 -r ./parted-1.4.1.orig/libparted/device.c 
./parted-1.4.1/libparted/device.c
--- ./parted-1.4.1.orig/libparted/device.c      Tue Nov 14 19:50:50 2000
+++ ./parted-1.4.1/libparted/device.c   Sat Nov 18 16:44:17 2000
@@ -45,6 +45,7 @@
 #include <sys/sysmacros.h>
 #include <sys/stat.h>
 #include <scsi/scsi.h>
+#include <ctype.h>
 
 #include <parted/parted.h>
 
@@ -1057,25 +1058,29 @@
        ped_exception_leave_all ();
 }
 
-/* FIXME */
+#define MAX_PARTNAME_LENGTH 80
 void
 ped_device_probe_all ()
 {
-       probe ("/dev/hdh");
-       probe ("/dev/hdg");
-       probe ("/dev/hdf");
-       probe ("/dev/hde");
-       probe ("/dev/hdd");
-       probe ("/dev/hdc");
-       probe ("/dev/hdb");
-       probe ("/dev/hda");
-
-       probe ("/dev/sdf");
-       probe ("/dev/sde");
-       probe ("/dev/sdd");
-       probe ("/dev/sdc");
-       probe ("/dev/sdb");
-       probe ("/dev/sda");
+       FILE *proc_part;
+       char line[MAX_PARTNAME_LENGTH];
+       char name[MAX_PARTNAME_LENGTH - 22];
+
+       proc_part=fopen("/proc/partitions", "r");
+
+       /* the first two lines are headers, ignore them */
+       fgets(line, MAX_PARTNAME_LENGTH, proc_part);
+       fgets(line, MAX_PARTNAME_LENGTH, proc_part);
+
+       while( fgets(line, MAX_PARTNAME_LENGTH, proc_part) != NULL) {
+               if ( line[strlen(line)-1] = '\n' )
+                       line[strlen(line)-1] = '\0';
+               if ( isalpha(line[strlen(line)-1]) ) {
+                       strcpy(name, "/dev/");
+                       strcat(name, rindex(line, ' ')+1);
+                       probe(name);
+               }
+       }
 }
 
 void