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-rw-r--r--util-linux/dmesg.c95
-rw-r--r--util-linux/fdflush.c36
-rw-r--r--util-linux/mkswap.c253
-rw-r--r--util-linux/more.c110
-rw-r--r--util-linux/mount.c430
-rw-r--r--util-linux/umount.c135
6 files changed, 1059 insertions, 0 deletions
diff --git a/util-linux/dmesg.c b/util-linux/dmesg.c
new file mode 100644
index 0000000..a63fa3d
--- /dev/null
+++ b/util-linux/dmesg.c
@@ -0,0 +1,95 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+
+/* dmesg.c -- Print out the contents of the kernel ring buffer
+ * Created: Sat Oct 9 16:19:47 1993
+ * Revised: Thu Oct 28 21:52:17 1993 by faith@cs.unc.edu
+ * Copyright 1993 Theodore Ts'o (tytso@athena.mit.edu)
+ * This program comes with ABSOLUTELY NO WARRANTY.
+ * Modifications by Rick Sladkey (jrs@world.std.com)
+ * from util-linux; adapted for busybox
+ */
+
+#include <linux/unistd.h>
+#include <stdio.h>
+#include <getopt.h>
+
+#define __NR_klog __NR_syslog
+
+#if defined(__GLIBC__)
+#include <sys/klog.h>
+#define klog klogctl
+#else
+static inline _syscall3(int,klog,int,type,char *,b,int,len)
+#endif /* __GLIBC__ */
+
+const char dmesg_usage[] = "dmesg";
+
+int
+dmesg_main(struct FileInfo * info, int argc, char * * argv)
+{
+
+ char buf[4096];
+ int i;
+ int n;
+ int c;
+ int level = 0;
+ int lastc;
+ int cmd = 3;
+
+ while ((c = getopt( argc, argv, "cn:" )) != EOF) {
+ switch (c) {
+ case 'c':
+ cmd = 4;
+ break;
+ case 'n':
+ cmd = 8;
+ level = atoi(optarg);
+ break;
+ case '?':
+ default:
+ usage(dmesg_usage);
+ exit(1);
+ }
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc > 1) {
+ usage(dmesg_usage);
+ exit(1);
+ }
+
+ if (cmd == 8) {
+ n = klog( cmd, NULL, level );
+ if (n < 0) {
+ perror( "klog" );
+ exit( 1 );
+ }
+ exit( 0 );
+ }
+
+ n = klog( cmd, buf, sizeof( buf ) );
+ if (n < 0) {
+ perror( "klog" );
+ exit( 1 );
+ }
+
+ lastc = '\n';
+ for (i = 0; i < n; i++) {
+ if ((i == 0 || buf[i - 1] == '\n') && buf[i] == '<') {
+ i++;
+ while (buf[i] >= '0' && buf[i] <= '9')
+ i++;
+ if (buf[i] == '>')
+ i++;
+ }
+ lastc = buf[i];
+ putchar( lastc );
+ }
+ if (lastc != '\n')
+ putchar( '\n' );
+ return 0;
+}
diff --git a/util-linux/fdflush.c b/util-linux/fdflush.c
new file mode 100644
index 0000000..a15e9b3
--- /dev/null
+++ b/util-linux/fdflush.c
@@ -0,0 +1,36 @@
+#include "internal.h"
+#include <sys/ioctl.h>
+#include <linux/fd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+const char fdflush_usage[] = "fdflush device";
+
+int
+fdflush(const char *filename)
+{
+ int status;
+ int fd = open(filename, 0);
+
+ if ( fd < 0 ) {
+ name_and_error(filename);
+ return 1;
+ }
+
+ status = ioctl(fd, FDFLUSH, 0);
+ close(fd);
+
+ if ( status != 0 ) {
+ name_and_error(filename);
+ return 1;
+ }
+ return 0;
+}
+
+
+int
+fdflush_fn(const struct FileInfo * i)
+{
+ return fdflush(i->source);
+}
diff --git a/util-linux/mkswap.c b/util-linux/mkswap.c
new file mode 100644
index 0000000..f797d13
--- /dev/null
+++ b/util-linux/mkswap.c
@@ -0,0 +1,253 @@
+#include "internal.h"
+/*
+ * mkswap.c - set up a linux swap device
+ *
+ * (C) 1991 Linus Torvalds. This file may be redistributed as per
+ * the Linux copyright.
+ */
+
+/*
+ * 20.12.91 - time began. Got VM working yesterday by doing this by hand.
+ *
+ * Usage: mkswap [-c] device [size-in-blocks]
+ *
+ * -c for readablility checking (use it unless you are SURE!)
+ *
+ * The device may be a block device or a image of one, but this isn't
+ * enforced (but it's not much fun on a character device :-).
+ *
+ * Patches from jaggy@purplet.demon.co.uk (Mike Jagdis) to make the
+ * size-in-blocks parameter optional added Wed Feb 8 10:33:43 1995.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <asm/page.h>
+#include <linux/fs.h>
+
+#ifndef __linux__
+# define volatile
+#endif
+
+#define TEST_BUFFER_PAGES 8
+
+const char mkswap_usage[] = "mkswap [-c] partition [block-count]\n"
+"\n"
+"\tPrepare a disk partition to be used as a swap partition.\n"
+"\tThe default block count is the size of the entire partition.\n"
+"\n"
+"\t-c:\tCheck for read-ability.\n"
+"\tblock-count\tUse only this many blocks.\n";
+
+static const char * program_name = "mkswap";
+static const char * device_name = NULL;
+static int DEV = -1;
+static long PAGES = 0;
+static int do_check = 0;
+static int badpages = 0;
+
+
+static long bit_test_and_set (unsigned int *addr, unsigned int nr)
+{
+ unsigned int r, m;
+
+ addr += nr / (8 * sizeof(int));
+ r = *addr;
+ m = 1 << (nr & (8 * sizeof(int) - 1));
+ *addr = r | m;
+ return (r & m) != 0;
+}
+
+static int bit_test_and_clear (unsigned int *addr, unsigned int nr)
+{
+ unsigned int r, m;
+
+ addr += nr / (8 * sizeof(int));
+ r = *addr;
+ m = 1 << (nr & (8 * sizeof(int) - 1));
+ *addr = r & ~m;
+ return (r & m) != 0;
+}
+
+/*
+ * Volatile to let gcc know that this doesn't return. When trying
+ * to compile this under minix, volatile gives a warning, as
+ * exit() isn't defined as volatile under minix.
+ */
+volatile void fatal_error(const char * fmt_string)
+{
+ fprintf(stderr,fmt_string,program_name,device_name);
+ exit(1);
+}
+
+#define die(str) fatal_error("%s: " str "\n")
+
+static void check_blocks(int * signature_page)
+{
+ unsigned int current_page;
+ int do_seek = 1;
+ char buffer[PAGE_SIZE];
+
+ current_page = 0;
+ while (current_page < PAGES) {
+ if (!do_check) {
+ bit_test_and_set(signature_page,current_page++);
+ continue;
+ } else {
+ printf("\r%d", current_page);
+ }
+ if (do_seek && lseek(DEV,current_page*PAGE_SIZE,SEEK_SET) !=
+ current_page*PAGE_SIZE)
+ die("seek failed in check_blocks");
+ if ( (do_seek = (PAGE_SIZE != read(DEV, buffer, PAGE_SIZE))) ) {
+ bit_test_and_clear(signature_page,current_page++);
+ badpages++;
+ continue;
+ }
+ bit_test_and_set(signature_page,current_page++);
+ }
+ if (do_check)
+ printf("\n");
+ if (badpages)
+ printf("%d bad page%s\n",badpages,(badpages>1)?"s":"");
+}
+
+static long valid_offset (int fd, int offset)
+{
+ char ch;
+
+ if (lseek (fd, offset, 0) < 0)
+ return 0;
+ if (read (fd, &ch, 1) < 1)
+ return 0;
+ return 1;
+}
+
+static int count_blocks (int fd)
+{
+ int high, low;
+
+ low = 0;
+ for (high = 1; valid_offset (fd, high); high *= 2)
+ low = high;
+ while (low < high - 1)
+ {
+ const int mid = (low + high) / 2;
+
+ if (valid_offset (fd, mid))
+ low = mid;
+ else
+ high = mid;
+ }
+ valid_offset (fd, 0);
+ return (low + 1);
+}
+
+static int get_size(const char *file)
+{
+ int fd;
+ int size;
+
+ fd = open(file, O_RDWR);
+ if (fd < 0) {
+ perror(file);
+ exit(1);
+ }
+ if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
+ close(fd);
+ return (size * 512);
+ }
+
+ size = count_blocks(fd);
+ close(fd);
+ return size;
+}
+
+int
+mkswap(char *device_name, int pages, int check)
+ {
+ struct stat statbuf;
+ int goodpages;
+ int signature_page[PAGE_SIZE/sizeof(int)];
+
+ PAGES = pages;
+ do_check = check;
+
+ memset(signature_page,0,PAGE_SIZE);
+
+ if (device_name && !PAGES) {
+ PAGES = get_size(device_name) / PAGE_SIZE;
+ }
+ if (!device_name || PAGES<10) {
+ fprintf(stderr,
+ "%s: error: swap area needs to be at least %ldkB\n",
+ program_name, 10 * PAGE_SIZE / 1024);
+ /* usage(mkswap_usage); */
+ exit(1);
+ }
+ if (PAGES > 8 * (PAGE_SIZE - 10)) {
+ PAGES = 8 * (PAGE_SIZE - 10);
+ fprintf(stderr, "%s: warning: truncating swap area to %ldkB\n",
+ program_name, PAGES * PAGE_SIZE / 1024);
+ }
+ DEV = open(device_name,O_RDWR);
+ if (DEV < 0 || fstat(DEV, &statbuf) < 0) {
+ perror(device_name);
+ exit(1);
+ }
+ if (!S_ISBLK(statbuf.st_mode))
+ do_check=0;
+ else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
+ die("Will not try to make swapdevice on '%s'");
+ check_blocks(signature_page);
+ if (!bit_test_and_clear(signature_page,0))
+ die("fatal: first page unreadable");
+ goodpages = PAGES - badpages - 1;
+ if (goodpages <= 0)
+ die("Unable to set up swap-space: unreadable");
+ printf("Setting up swapspace, size = %ld bytes\n",goodpages*PAGE_SIZE);
+ strncpy((char*)signature_page+PAGE_SIZE-10,"SWAP-SPACE",10);
+ if (lseek(DEV, 0, SEEK_SET))
+ die("unable to rewind swap-device");
+ if (PAGE_SIZE != write(DEV, signature_page, PAGE_SIZE))
+ die("unable to write signature page");
+
+ close(DEV);
+ return 0;
+}
+
+int mkswap_main(struct FileInfo * unnecessary, int argc, char ** argv)
+{
+ char * tmp;
+ long int pages=0;
+ int check=0;
+
+ if (argc && *argv)
+ program_name = *argv;
+ while (argc > 1) {
+ argv++;
+ argc--;
+ if (argv[0][0] != '-')
+ if (device_name) {
+ pages = strtol(argv[0],&tmp,0)>>(PAGE_SHIFT-10);
+ if (*tmp) {
+ usage(mkswap_usage);
+ exit(1);
+ }
+ } else
+ device_name = argv[0];
+ else while (*++argv[0])
+ switch (argv[0][0]) {
+ case 'c': check=1; break;
+ default: usage(mkswap_usage);
+ exit(1);
+ }
+ }
+ return mkswap(device_name, pages, check);
+}
diff --git a/util-linux/more.c b/util-linux/more.c
new file mode 100644
index 0000000..6540999
--- /dev/null
+++ b/util-linux/more.c
@@ -0,0 +1,110 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+
+#define BB_MORE_TERM
+
+#ifdef BB_MORE_TERM
+ #include <termios.h>
+ #include <signal.h>
+
+ FILE *cin;
+ struct termios initial_settings, new_settings;
+
+ void gotsig(int sig) {
+ tcsetattr(fileno(cin), TCSANOW, &initial_settings);
+ exit(0);
+ }
+#endif
+
+const char more_usage[] = "more [file]\n"
+"\n"
+"\tDisplays a file, one page at a time.\n"
+"\tIf there are no arguments, the standard input is displayed.\n";
+
+extern int
+more_fn(const struct FileInfo * i)
+{
+ FILE * f = stdin;
+ int c;
+ int lines = 0, tlines = 0;
+ int next_page = 0;
+ int rows = 24, cols = 79;
+#ifdef BB_MORE_TERM
+ long sizeb = 0;
+ struct stat st;
+ struct winsize win;
+#endif
+
+ if ( i ) {
+ if (! (f = fopen(i->source, "r") )) {
+ name_and_error(i->source);
+ return 1;
+ }
+ fstat(fileno(f), &st);
+ sizeb = st.st_size / 100;
+ }
+
+#ifdef BB_MORE_TERM
+ cin = fopen("/dev/tty", "r");
+ tcgetattr(fileno(cin),&initial_settings);
+ new_settings = initial_settings;
+ new_settings.c_lflag &= ~ICANON;
+ new_settings.c_lflag &= ~ECHO;
+ tcsetattr(fileno(cin), TCSANOW, &new_settings);
+
+ (void) signal(SIGINT, gotsig);
+
+ ioctl(STDOUT_FILENO, TIOCGWINSZ, &win);
+ if (win.ws_row > 4) rows = win.ws_row - 2;
+ if (win.ws_col > 0) cols = win.ws_col - 1;
+
+
+#endif
+
+ while ( (c = getc(f)) != EOF ) {
+ if ( next_page ) {
+ char garbage;
+ int len;
+ tlines += lines;
+ lines = 0;
+ next_page = 0; //Percentage is based on bytes, not lines.
+ if ( i && i->source ) //It is not very acurate, but still useful.
+ len = printf("%s - %%%2ld - line: %d", i->source, (ftell(f) - sizeb - sizeb) / sizeb, tlines);
+ else
+ len = printf("line: %d", tlines);
+
+ fflush(stdout);
+#ifndef BB_MORE_TERM
+ read(2, &garbage, 1);
+#else
+ do {
+ fread(&garbage, 1, 1, cin);
+ } while ((garbage != ' ') && (garbage != '\n'));
+
+ if (garbage == '\n') {
+ lines = rows;
+ tlines -= rows;
+ }
+ garbage = 0;
+ //clear line, since tabs don't overwrite.
+ while(len-- > 0) putchar('\b');
+ while(len++ < cols) putchar(' ');
+ while(len-- > 0) putchar('\b');
+ fflush(stdout);
+#endif
+ }
+ putchar(c);
+ if ( c == '\n' && ++lines == (rows + 1) )
+ next_page = 1;
+ }
+ if ( f != stdin )
+ fclose(f);
+#ifdef BB_MORE_TERM
+ gotsig(0);
+#endif
+ return 0;
+}
diff --git a/util-linux/mount.c b/util-linux/mount.c
new file mode 100644
index 0000000..010757d
--- /dev/null
+++ b/util-linux/mount.c
@@ -0,0 +1,430 @@
+/*
+ 3/21/1999 Charles P. Wright <cpwright@cpwright.com>
+ searches through fstab when -a is passed
+ will try mounting stuff with all fses when passed -t auto
+
+ 1999-04-17 Dave Cinege...Rewrote -t auto. Fixed ro mtab.
+*/
+
+#include "internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/mount.h>
+#include <ctype.h>
+
+const char mount_usage[] = "mount\n"
+"\t\tmount [flags] special-device directory\n"
+"\n"
+"Flags:\n"
+"\t-a:\tMount all file systems in fstab.\n"
+"\t-f:\t\"Fake\" mount. Add entry to mount table but don't mount it.\n"
+"\t-n:\tDon't write a mount table entry.\n"
+"\t-o option:\tOne of many filesystem options, listed below.\n"
+"\t-r:\tMount the filesystem read-only.\n"
+"\t-t filesystem-type:\tSpecify the filesystem type.\n"
+"\t-w:\tMount for reading and writing (default).\n"
+"\n"
+"Options for use with the \"-o\" flag:\n"
+"\tasync / sync:\tWrites are asynchronous / synchronous.\n"
+"\tdev / nodev:\tAllow use of special device files / disallow them.\n"
+"\texec / noexec:\tAllow use of executable files / disallow them.\n"
+"\tsuid / nosuid:\tAllow set-user-id-root programs / disallow them.\n"
+"\tremount: Re-mount a currently-mounted filesystem, changing its flags.\n"
+"\tro / rw: Mount for read-only / read-write.\n"
+"\t"
+"There are EVEN MORE flags that are specific to each filesystem.\n"
+"You'll have to see the written documentation for those.\n";
+
+struct mount_options {
+ const char * name;
+ unsigned long and;
+ unsigned long or;
+};
+
+static const struct mount_options mount_options[] = {
+ { "async", ~MS_SYNCHRONOUS,0 },
+ { "defaults", ~0, 0 },
+ { "dev", ~MS_NODEV, 0 },
+ { "exec", ~MS_NOEXEC, 0 },
+ { "nodev", ~0, MS_NODEV },
+ { "noexec", ~0, MS_NOEXEC },
+ { "nosuid", ~0, MS_NOSUID },
+ { "remount", ~0, MS_REMOUNT },
+ { "ro", ~0, MS_RDONLY },
+ { "rw", ~MS_RDONLY, 0 },
+ { "suid", ~MS_NOSUID, 0 },
+ { "sync", ~0, MS_SYNCHRONOUS },
+ { 0, 0, 0 }
+};
+
+static void
+show_flags(unsigned long flags, char * buffer)
+{
+ const struct mount_options * f = mount_options;
+ while ( f->name ) {
+ if ( flags & f->and ) {
+ int length = strlen(f->name);
+ memcpy(buffer, f->name, length);
+ buffer += length;
+ *buffer++ = ',';
+ *buffer = '\0';
+ }
+ f++;
+ }
+}
+
+static void
+one_option(
+ char * option
+,unsigned long * flags
+,char * data)
+{
+ const struct mount_options * f = mount_options;
+
+ while ( f->name != 0 ) {
+ if ( strcasecmp(f->name, option) == 0 ) {
+ *flags &= f->and;
+ *flags |= f->or;
+ return;
+ }
+ f++;
+ }
+ if ( *data ) {
+ data += strlen(data);
+ *data++ = ',';
+ }
+ strcpy(data, option);
+}
+
+static void
+parse_mount_options(
+ char * options
+,unsigned long * flags
+,char * data)
+{
+ while ( *options ) {
+ char * comma = strchr(options, ',');
+ if ( comma )
+ *comma = '\0';
+ one_option(options, flags, data);
+ if ( comma ) {
+ *comma = ',';
+ options = ++comma;
+ }
+ else
+ break;
+ }
+}
+
+int
+mount_one(
+ char * blockDevice
+,char * directory
+,char * filesystemType
+,unsigned long flags
+,char * string_flags
+,int noMtab
+,int fake)
+{
+ int error = 0;
+ int status = 0;
+
+ char buf[255];
+
+ if (!fake) {
+ if (*filesystemType == 'a') { //Will fail on real FS starting with 'a'
+
+ FILE *f = fopen("/proc/filesystems", "r");
+
+ if (f == NULL) return 1;
+
+ while (fgets(buf, sizeof(buf), f) != NULL) {
+ filesystemType = buf;
+ if (*filesystemType == '\t') { // Not a nodev filesystem
+
+ while (*filesystemType && *filesystemType != '\n') filesystemType++;
+ *filesystemType = '\0';
+
+ filesystemType = buf;
+ filesystemType++; //hop past tab
+
+ status = mount(blockDevice, directory, filesystemType,
+ flags|MS_MGC_VAL ,string_flags);
+ error = errno;
+
+ if (status == 0) break;
+ }
+ }
+ fclose(f);
+ } else {
+
+ status = mount( blockDevice, directory, filesystemType,
+ flags|MS_MGC_VAL ,string_flags);
+ error = errno;
+ }
+ }
+
+ if ( status == 0 ) {
+ char * s = &string_flags[strlen(string_flags)];
+ FILE * mountTable;
+ if ( s != string_flags ) {
+ *s++ = ',';
+ show_flags(flags, s);
+ }
+ if ( !noMtab && (mountTable = setmntent("/etc/mtab", "a+")) ) {
+ int length = strlen(directory);
+ struct mntent m;
+
+ if ( length > 1 && directory[length - 1] == '/' )
+ directory[length - 1] = '\0';
+
+ if ( filesystemType == 0 ) {
+ struct mntent * p
+ = findMountPoint(blockDevice, "/proc/mounts");
+
+ if ( p && p->mnt_type )
+ filesystemType = p->mnt_type;
+ }
+ m.mnt_fsname = blockDevice;
+ m.mnt_dir = directory;
+ m.mnt_type = filesystemType ? filesystemType : "default";
+
+ if (*string_flags) {
+ m.mnt_opts = string_flags;
+ } else {
+ if ( (flags | MS_RDONLY) == flags )
+ m.mnt_opts = "ro";
+ else
+ m.mnt_opts = "rw";
+ }
+
+ m.mnt_freq = 0;
+ m.mnt_passno = 0;
+ addmntent(mountTable, &m);
+ endmntent(mountTable);
+ }
+ return 0;
+ } else {
+ fprintf(stderr, "Mount %s", blockDevice);
+ if ( filesystemType && *filesystemType )
+ fprintf(stderr, " (type %s)", filesystemType);
+
+ fprintf(
+ stderr
+ ," on %s: "
+ ,directory);
+
+ switch ( error ) {
+ case EPERM:
+ if (geteuid() == 0)
+ fprintf(
+ stderr
+ ,"mount point %s is not a directory"
+ ,blockDevice);
+ else
+ fprintf(
+ stderr
+ ,"must be superuser to use mount");
+ break;
+ case EBUSY:
+ fprintf(
+ stderr
+ ,"%s already mounted or %s busy"
+ ,blockDevice
+ ,directory);
+ break;
+ case ENOENT:
+ {
+ struct stat statbuf;
+ if ( stat(directory, &statbuf) != 0 )
+ fprintf(
+ stderr
+ ,"directory %s does not exist"
+ ,directory);
+ else if ( stat(blockDevice, &statbuf) != 0 )
+ fprintf(
+ stderr
+ ,"block device %s does not exist"
+ ,blockDevice);
+ else
+ fprintf(
+ stderr
+ ,"%s is not mounted on %s, but the mount table says it is."
+ ,blockDevice
+ ,directory);
+ break;
+ }
+ case ENOTDIR:
+ fprintf(
+ stderr
+ ,"%s is not a directory"
+ ,directory);
+ break;
+ case EINVAL:
+ fprintf(
+ stderr
+ ,"wrong filesystem type, or bad superblock on %s"
+ ,blockDevice);
+ break;
+ case EMFILE:
+ fprintf(stderr, "mount table full");
+ break;
+ case EIO:
+ fprintf(
+ stderr
+ ,"I/O error reading %s"
+ ,blockDevice);
+ break;
+ case ENODEV:
+ {
+ FILE * f = fopen("/proc/filesystems", "r");
+
+ fprintf(
+ stderr
+ ,"filesystem type %s not in kernel.\n"
+ ,filesystemType);
+ fprintf(stderr, "Do you need to load a module?\n");
+ if ( f ) {
+ char buf[100];
+
+ fprintf(
+ stderr
+ ,"Here are the filesystem types the kernel"
+ " can mount:\n");
+ while ( fgets(buf, sizeof(buf), f) != 0 )
+ fprintf(stderr, "\t%s", buf);
+ fclose(f);
+ }
+ break;
+ }
+ case ENOTBLK:
+ fprintf(
+ stderr
+ ,"%s is not a block device"
+ ,blockDevice);
+ break;
+ case ENXIO:
+ fprintf(
+ stderr
+ ,"%s is not a valid block device"
+ ,blockDevice);
+ break;
+ default:
+ fputs(strerror(errno), stderr);
+ }
+ putc('\n', stderr);
+ return -1;
+ }
+}
+
+extern int
+mount_main(struct FileInfo * i, int argc, char * * argv)
+{
+ char string_flags[1024];
+ unsigned long flags = 0;
+ char * filesystemType = "auto";
+ int fake = 0;
+ int noMtab = 0;
+ int all = 0;
+
+ *string_flags = '\0';
+
+ if ( argc == 1 ) {
+ FILE * mountTable;
+ if ( (mountTable = setmntent("/etc/mtab", "r")) ) {
+ struct mntent * m;
+ while ( (m = getmntent(mountTable)) != 0 ) {
+ printf(
+ "%s on %s type %s (%s)\n"
+ ,m->mnt_fsname
+ ,m->mnt_dir
+ ,m->mnt_type
+ ,m->mnt_opts);
+ }
+ endmntent(mountTable);
+ }
+ return 0;
+ }
+
+ while ( argc >= 2 && argv[1][0] == '-' ) {
+ switch ( argv[1][1] ) {
+ case 'f':
+ fake = 1;
+ break;
+ case 'n':
+ noMtab = 1;
+ break;
+ case 'o':
+ if ( argc < 3 ) {
+ usage(mount_usage);
+ return 1;
+ }
+ parse_mount_options(argv[2], &flags, string_flags);
+ argc--;
+ argv++;
+ break;
+ case 'r':
+ flags |= MS_RDONLY;
+ break;
+ case 't':
+ if ( argc < 3 ) {
+ usage(mount_usage);
+ return 1;
+ }
+ filesystemType = argv[2];
+ argc--;
+ argv++;
+ break;
+ case 'v':
+ break;
+ case 'w':
+ flags &= ~MS_RDONLY;
+ break;
+ case 'a':
+ all = 1;
+ break;
+ default:
+ usage(mount_usage);
+ return 1;
+ }
+ argc--;
+ argv++;
+ }
+
+ if (all == 1) {
+ struct mntent *m;
+ FILE *f = setmntent("/etc/fstab", "r");
+
+ if (f == NULL) {
+ return 1;
+ }
+
+ // FIXME: Combine read routine (make new function) with unmount_all to save space.
+
+ while ((m = getmntent(f)) != NULL) {
+ // If the file system isn't noauto, and isn't mounted on /, mount it
+ if ((!strstr(m->mnt_opts, "noauto")) && (m->mnt_dir[1] != '\0')
+ && !((m->mnt_type[0] == 's') && (m->mnt_type[1] == 'w'))
+ && !((m->mnt_type[0] == 'n') && (m->mnt_type[1] == 'f'))) {
+ mount_one(m->mnt_fsname, m->mnt_dir, m->mnt_type, flags, m->mnt_opts, noMtab, fake);
+ }
+ }
+
+ endmntent(f);
+ } else {
+ if ( argc >= 3 ) {
+ if ( mount_one( argv[1], argv[2], filesystemType, flags, string_flags, noMtab, fake) == 0 )
+ return 0;
+ else
+ return 1;
+ } else {
+ usage(mount_usage);
+ return 1;
+ }
+ }
+ return 0;
+}
diff --git a/util-linux/umount.c b/util-linux/umount.c
new file mode 100644
index 0000000..4efc9f9
--- /dev/null
+++ b/util-linux/umount.c
@@ -0,0 +1,135 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/mount.h>
+
+const char umount_usage[] = "umount {filesystem|directory}\n"
+"\tumount -a\n"
+"\n"
+"\tUnmount a filesystem.\n"
+"\t-a:\tUnmounts all mounted filesystems.\n";
+
+static char *
+stralloc(const char * string)
+{
+ int length = strlen(string) + 1;
+ char * n = malloc(length);
+ memcpy(n, string, length);
+ return n;
+}
+
+extern void
+erase_mtab(const char * name)
+{
+ struct mntent entries[100];
+ int count = 0;
+ FILE * mountTable = setmntent("/etc/mtab", "r");
+ struct mntent * m;
+
+ if ( mountTable == 0
+ && (mountTable = setmntent("/proc/mounts", "r")) == 0 ) {
+ name_and_error("/etc/mtab");
+ return;
+ }
+
+ while ( (m = getmntent(mountTable)) != 0 ) {
+ entries[count].mnt_fsname = stralloc(m->mnt_fsname);
+ entries[count].mnt_dir = stralloc(m->mnt_dir);
+ entries[count].mnt_type = stralloc(m->mnt_type);
+ entries[count].mnt_opts = stralloc(m->mnt_opts);
+ entries[count].mnt_freq = m->mnt_freq;
+ entries[count].mnt_passno = m->mnt_passno;
+ count++;
+ }
+ endmntent(mountTable);
+ if ( (mountTable = setmntent("/etc/mtab", "w")) ) {
+ int i;
+ for ( i = 0; i < count; i++ ) {
+ int result = ( strcmp(entries[i].mnt_fsname, name) == 0
+ || strcmp(entries[i].mnt_dir, name) == 0 );
+
+ if ( result )
+ continue;
+ else
+ addmntent(mountTable, &entries[i]);
+ }
+ endmntent(mountTable);
+ }
+ else if ( errno != EROFS )
+ name_and_error("/etc/mtab");
+}
+
+static int
+umount_all(int noMtab)
+{
+ struct mntent entries[100];
+ int count = 0;
+ FILE * mountTable = setmntent("/etc/mtab", "r");
+ struct mntent * m;
+ int status = 0;
+
+ if ( mountTable == 0
+ && (mountTable = setmntent("/proc/mounts", "r")) == 0 ) {
+ name_and_error("/etc/mtab");
+ return 1;
+ }
+
+ while ( (m = getmntent(mountTable)) != 0 ) {
+ entries[count].mnt_fsname = stralloc(m->mnt_fsname);
+ count++;
+ }
+ endmntent(mountTable);
+
+ while ( count > 0 ) {
+ int result = umount(entries[--count].mnt_fsname) == 0;
+ /* free(entries[count].mnt_fsname); */
+ if ( result ) {
+ if ( !noMtab )
+ erase_mtab(entries[count].mnt_fsname);
+ }
+ else {
+ status = 1;
+ name_and_error(entries[count].mnt_fsname);
+ }
+ }
+ return status;
+}
+
+extern int
+do_umount(const char * name, int noMtab)
+{
+ if ( umount(name) == 0 ) {
+ if ( !noMtab )
+ erase_mtab(name);
+ return 0;
+ }
+ return 1;
+}
+
+extern int
+umount_main(struct FileInfo * i, int argc, char * * argv)
+{
+ int noMtab = 0;
+
+ if ( argv[1][0] == '-' ) {
+ switch ( argv[1][1] ) {
+ case 'a':
+ return umount_all(noMtab);
+ case 'n':
+ noMtab = 1;
+ break;
+ default:
+ usage(umount_usage);
+ return 1;
+ }
+ }
+ if ( do_umount(argv[1],noMtab) != 0 ) {
+ fprintf(stderr, "%s: %s.\n", argv[1], strerror(errno));
+ return 1;
+ }
+ return 0;
+}
generated by cgit v1.1 at 2024-12-29 06:13:00 +0000