partinfo.c:

  Add preliminary version of the partinfo program.

diff --git a/misc/partinfo.c b/misc/partinfo.c
new file mode 100644 (file)
index 0000000..1e3e064
--- /dev/null
+++ b/misc/partinfo.c
@@ -0,0 +1,66 @@
+/*
+ * partinfo.c
+ *
+ * Originally written by Alain Knaff, <alknaff@innet.lu>.
+ *
+ * Cleaned up by Theodore Ts'o, <tytso@mit.edu>.
+ * 
+ */
+
+#include <sys/types.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <linux/fs.h>
+#include <linux/hdreg.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+void print_error(char *operation, int error, char *device)
+{
+       fprintf(stderr, "%s failed for %s: %s\n", operation, device,
+               strerror(error));
+}
+
+int main(int argc, char **argv)
+{
+       struct hd_geometry loc;
+       int fd, size, i;
+
+       if (argc == 1) {
+               fprintf(stderr, "Usage: %s <dev1> <dev2> <dev3>\n\n"
+                       "This program prints out the partition information "
+                       "for a set of devices\n"
+                       "A common way to use this progrma is:\n\n\t"
+                       "%s /dev/hda?\n\n", argv[0], argv[0]);
+               exit(1);
+       }
+    
+       for (i=1; i < argc; i++) {
+               fd = open(argv[i], O_RDONLY);
+
+               if (fd < 0) {
+                       print_error("open", errno, argv[1]);
+                       continue;
+               }
+    
+               if (ioctl(fd, HDIO_GETGEO, &loc) < 0) {
+                       print_error("HDIO_GETGEO ioctl", errno, argv[1]);
+                       close(fd);
+                       continue;
+               }
+    
+    
+               if (ioctl(fd, BLKGETSIZE, &size) < 0) {
+                       print_error("BLKGETSIZE ioctl", errno, argv[1]);
+                       close(fd);
+                       continue;
+               }
+    
+               printf("%s: h=%3d s=%3d c=%4d   start=%8d size=%8d end=%8d\n",
+                      argv[i], 
+                      loc.heads, (int)loc.sectors, loc.cylinders,
+                      (int)loc.start, size, (int) loc.start + size -1);
+               close(fd);
+       }
+       exit(0);
+}