Unbenutztes Nash geloescht.

[ipfire-2.x.git] / src / nash / name_to_dev_t.c

diff --git a/src/nash/name_to_dev_t.c b/src/nash/name_to_dev_t.c
deleted file mode 100644 (file)
index e882804..0000000
--- a/src/nash/name_to_dev_t.c
+++ /dev/null
@@ -1,139 +0,0 @@
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <stdio.h>
-#include <fcntl.h>
-
-static dev_t try_name(char *name, int part)
-{
-       char path[64];
-       char buf[32];
-       int range;
-       dev_t res;
-       char *s;
-       int len;
-       int fd;
-       unsigned int maj, min;
-
-       /* read device number from .../dev */
-
-       sprintf(path, "/sys/block/%s/dev", name);
-       fd = open(path, O_RDONLY);
-       if (fd < 0)
-               goto fail;
-       len = read(fd, buf, 32);
-       close(fd);
-       if (len <= 0 || len == 32 || buf[len - 1] != '\n')
-               goto fail;
-       buf[len - 1] = '\0';
-       if (sscanf(buf, "%u:%u", &maj, &min) != 2)
-               goto fail;
-       res = makedev(maj, min);
-       if (maj != major(res) || min != minor(res))
-               goto fail;
-
-       /* if it's there and we are not looking for a partition - that's it */
-       if (!part)
-               return res;
-
-       /* otherwise read range from .../range */
-       snprintf(path, 64, "/sys/block/%s/range", name);
-       fd = open(path, O_RDONLY);
-       if (fd < 0)
-               goto fail;
-       len = read(fd, buf, 32);
-       close(fd);
-       if (len <= 0 || len == 32 || buf[len - 1] != '\n')
-               goto fail;
-       buf[len - 1] = '\0';
-       range = strtoul(buf, &s, 10);
-       if (*s)
-               goto fail;
-
-       /* if partition is within range - we got it */
-       if (part < range)
-               return res + part;
-fail:
-       return 0;
-}
-
-/*
- *     Convert a name into device number.  We accept the following variants:
- *
- *     1) device number in hexadecimal represents itself
- *     2) /dev/nfs represents Root_NFS (0xff)
- *     3) /dev/<disk_name> represents the device number of disk
- *     4) /dev/<disk_name><decimal> represents the device number
- *         of partition - device number of disk plus the partition number
- *     5) /dev/<disk_name>p<decimal> - same as the above, that form is
- *        used when disk name of partitioned disk ends on a digit.
- *
- *     If name doesn't have fall into the categories above, we return 0.
- *     sysfs is used to check if something is a disk name - it has
- *     all known disks under bus/block/devices.  If the disk name
- *     contains slashes, name of driverfs node has them replaced with
- *     bangs.  try_name() does the actual checks, assuming that sysfs
- *     is mounted on /sys.
- *
- *     Note that cases (1) and (2) are already handled by the kernel,
- *     so we can ifdef them out, provided that we check real-root-dev
- *     first.
- */
-
-dev_t name_to_dev_t(char *name)
-{
-       char s[32];
-       char *p;
-       dev_t res = 0;
-       int part;
-
-       if (strncmp(name, "/dev/", 5) != 0) {
-#if 1 /* kernel used to do this */
-               unsigned maj, min;
-
-               if (sscanf(name, "%u:%u", &maj, &min) == 2) {
-                       res = makedev(maj, min);
-                       if (maj != major(res) || min != minor(res))
-                               return 0;
-               } else {
-                       res = strtoul(name, &p, 16);
-                       if (*p)
-                               return 0;
-               }
-#endif
-               return res;
-       }
-
-       name += 5;
-
-#if 1 /* kernel used to do this */
-       if (strcmp(name, "nfs") == 0)
-               return makedev(0, 255);
-#endif
-
-       if (strlen(name) > 31)
-               return 0;
-       strcpy(s, name);
-       for (p = s; *p; p++)
-               if (*p == '/')
-                       *p = '!';
-       res = try_name(s, 0);
-       if (res)
-               return res;
-
-       while (p > s && isdigit(p[-1]))
-               p--;
-       if (p == s || !*p || *p == '0')
-               return 0;
-       part = strtoul(p, NULL, 10);
-       *p = '\0';
-       res = try_name(s, part);
-       if (res)
-               return res;
-
-       if (p < s + 2 || !isdigit(p[-2]) || p[-1] != 'p')
-               return 0;
-       p[-1] = '\0';
-       return try_name(s, part);
-}