auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 273 deletions

diff --git a/toolbox/mount.c b/toolbox/mount.c
deleted file mode 100644
index ef13e1f..0000000
--- a/toolbox/mount.c
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * mount.c, by rmk
- */
-
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <linux/loop.h>
-
-#define ARRAY_SIZE(x)	(sizeof(x) / sizeof(x[0]))
-
-// FIXME - only one loop mount is supported at a time
-#define LOOP_DEVICE "/dev/block/loop0"
-
-struct mount_opts {
-	const char str[8];
-	unsigned long rwmask;
-	unsigned long rwset;
-	unsigned long rwnoset;
-};
-
-struct extra_opts {
-	char *str;
-	char *end;
-	int used_size;
-	int alloc_size;
-};
-
-/*
- * These options define the function of "mount(2)".
- */
-#define MS_TYPE	(MS_REMOUNT|MS_BIND|MS_MOVE)
-
-
-static const struct mount_opts options[] = {
-	/* name		mask		set		noset		*/
-	{ "async",	MS_SYNCHRONOUS,	0,		MS_SYNCHRONOUS	},
-	{ "atime",	MS_NOATIME,	0,		MS_NOATIME	},
-	{ "bind",	MS_TYPE,	MS_BIND,	0,		},
-	{ "dev",	MS_NODEV,	0,		MS_NODEV	},
-	{ "diratime",	MS_NODIRATIME,	0,		MS_NODIRATIME	},
-	{ "dirsync",	MS_DIRSYNC,	MS_DIRSYNC,	0		},
-	{ "exec",	MS_NOEXEC,	0,		MS_NOEXEC	},
-	{ "move",	MS_TYPE,	MS_MOVE,	0		},
-	{ "recurse",	MS_REC,		MS_REC,		0		},
-	{ "remount",	MS_TYPE,	MS_REMOUNT,	0		},
-	{ "ro",		MS_RDONLY,	MS_RDONLY,	0		},
-	{ "rw",		MS_RDONLY,	0,		MS_RDONLY	},
-	{ "suid",	MS_NOSUID,	0,		MS_NOSUID	},
-	{ "sync",	MS_SYNCHRONOUS,	MS_SYNCHRONOUS,	0		},
-	{ "verbose",	MS_VERBOSE,	MS_VERBOSE,	0		},
-};
-
-static void add_extra_option(struct extra_opts *extra, char *s)
-{
-	int len = strlen(s);
-	int newlen = extra->used_size + len;
-
-	if (extra->str)
-	       len++;			/* +1 for ',' */
-
-	if (newlen >= extra->alloc_size) {
-		char *new;
-
-		new = realloc(extra->str, newlen + 1);	/* +1 for NUL */
-		if (!new)
-			return;
-
-		extra->str = new;
-		extra->end = extra->str + extra->used_size;
-		extra->alloc_size = newlen;
-	}
-
-	if (extra->used_size) {
-		*extra->end = ',';
-		extra->end++;
-	}
-	strcpy(extra->end, s);
-	extra->used_size += len;
-
-}
-
-static unsigned long
-parse_mount_options(char *arg, unsigned long rwflag, struct extra_opts *extra, int* loop)
-{
-	char *s;
-    
-    *loop = 0;
-	while ((s = strsep(&arg, ",")) != NULL) {
-		char *opt = s;
-		unsigned int i;
-		int res, no = s[0] == 'n' && s[1] == 'o';
-
-		if (no)
-			s += 2;
-
-        if (strcmp(s, "loop") == 0) {
-            *loop = 1;
-            continue;
-        }
-		for (i = 0, res = 1; i < ARRAY_SIZE(options); i++) {
-			res = strcmp(s, options[i].str);
-
-			if (res == 0) {
-				rwflag &= ~options[i].rwmask;
-				if (no)
-					rwflag |= options[i].rwnoset;
-				else
-					rwflag |= options[i].rwset;
-			}
-			if (res <= 0)
-				break;
-		}
-
-		if (res != 0 && s[0])
-			add_extra_option(extra, opt);
-	}
-
-	return rwflag;
-}
-
-static char *progname;
-
-static struct extra_opts extra;
-static unsigned long rwflag;
-
-static int
-do_mount(char *dev, char *dir, char *type, unsigned long rwflag, void *data, int loop)
-{
-	char *s;
-	int error = 0;
-
-    if (loop) {
-        int file_fd, device_fd;
-        
-        // FIXME - only one loop mount supported at a time
-        file_fd = open(dev, O_RDWR);
-        if (file_fd < -1) {
-            perror("open backing file failed");
-            return 1;
-        }
-        device_fd = open(LOOP_DEVICE, O_RDWR);
-        if (device_fd < -1) {
-            perror("open loop device failed");
-            close(file_fd);
-            return 1;
-        }
-        if (ioctl(device_fd, LOOP_SET_FD, file_fd) < 0) {
-            perror("ioctl LOOP_SET_FD failed");
-            close(file_fd);
-            close(device_fd);
-            return 1;
-        }
-
-        close(file_fd);
-        close(device_fd);
-        dev = LOOP_DEVICE;
-    }
-
-	while ((s = strsep(&type, ",")) != NULL) {
-retry:
-		if (mount(dev, dir, s, rwflag, data) == -1) {
-			error = errno;
-			/*
-			 * If the filesystem is not found, or the
-			 * superblock is invalid, try the next.
-			 */
-			if (error == ENODEV || error == EINVAL)
-				continue;
-
-			/*
-			 * If we get EACCESS, and we're trying to
-			 * mount readwrite and this isn't a remount,
-			 * try read only.
-			 */
-			if (error == EACCES &&
-			    (rwflag & (MS_REMOUNT|MS_RDONLY)) == 0) {
-				rwflag |= MS_RDONLY;
-				goto retry;
-			}
-			break;
-		}
-	}
-
-	if (error) {
-		errno = error;
-		perror("mount");
-		return 255;
-	}
-
-	return 0;
-}
-
-static int print_mounts()
-{
-    FILE* f;
-    int length;
-    char buffer[100];
-    
-    f = fopen("/proc/mounts", "r");
-    if (!f) {
-        fprintf(stdout, "could not open /proc/mounts\n");
-        return -1;
-    }
-
-    do {
-        length = fread(buffer, 1, 100, f);
-        if (length > 0)
-            fwrite(buffer, 1, length, stdout);
-    } while (length > 0);
-
-    fclose(f);
-    return 0;
-}
-
-int mount_main(int argc, char *argv[])
-{
-	char *type = NULL;
-	int c;
-	int loop;
-
-	progname = argv[0];
-	rwflag = MS_VERBOSE;
-	
-	// mount with no arguments is equivalent to "cat /proc/mounts"
-	if (argc == 1) return print_mounts();
-
-	do {
-		c = getopt(argc, argv, "o:rt:w");
-		if (c == EOF)
-			break;
-		switch (c) {
-		case 'o':
-			rwflag = parse_mount_options(optarg, rwflag, &extra, &loop);
-			break;
-		case 'r':
-			rwflag |= MS_RDONLY;
-			break;
-		case 't':
-			type = optarg;
-			break;
-		case 'w':
-			rwflag &= ~MS_RDONLY;
-			break;
-		case '?':
-			fprintf(stderr, "%s: invalid option -%c\n",
-				progname, optopt);
-			exit(1);
-		}
-	} while (1);
-
-	/*
-	 * If remount, bind or move was specified, then we don't
-	 * have a "type" as such.  Use the dummy "none" type.
-	 */
-	if (rwflag & MS_TYPE)
-		type = "none";
-
-	if (optind + 2 != argc || type == NULL) {
-		fprintf(stderr, "Usage: %s [-r] [-w] [-o options] [-t type] "
-			"device directory\n", progname);
-		exit(1);
-	}
-
-	return do_mount(argv[optind], argv[optind + 1], type, rwflag,
-		        extra.str, loop);
-}