Adding upstream version 1.47.0.upstream/1.47.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 330 insertions, 0 deletions

diff --git a/misc/util.c b/misc/util.c
new file mode 100644
index 0000000..3e83169
--- /dev/null
+++ b/misc/util.c
@@ -0,0 +1,330 @@
+/*
+ * util.c --- helper functions used by tune2fs and mke2fs
+ *
+ * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#ifndef _LARGEFILE_SOURCE
+#define _LARGEFILE_SOURCE
+#endif
+#ifndef _LARGEFILE64_SOURCE
+#define _LARGEFILE64_SOURCE
+#endif
+
+#ifdef _WIN32
+#define _POSIX
+#define __USE_MINGW_ALARM
+#endif
+
+#include "config.h"
+#include <fcntl.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_LINUX_MAJOR_H
+#include <linux/major.h>
+#endif
+#include <sys/types.h>
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <time.h>
+
+#include "et/com_err.h"
+#include "e2p/e2p.h"
+#include "ext2fs/ext2_fs.h"
+#include "ext2fs/ext2fs.h"
+#include "support/nls-enable.h"
+#include "support/devname.h"
+#include "blkid/blkid.h"
+#include "util.h"
+
+char *journal_location_string = NULL;
+
+#ifndef HAVE_STRCASECMP
+int strcasecmp (char *s1, char *s2)
+{
+	while (*s1 && *s2) {
+		int ch1 = *s1++, ch2 = *s2++;
+		if (isupper (ch1))
+			ch1 = tolower (ch1);
+		if (isupper (ch2))
+			ch2 = tolower (ch2);
+		if (ch1 != ch2)
+			return ch1 - ch2;
+	}
+	return *s1 ? 1 : *s2 ? -1 : 0;
+}
+#endif
+
+/*
+ * Given argv[0], return the program name.
+ */
+char *get_progname(char *argv_zero)
+{
+	char	*cp;
+
+	cp = strrchr(argv_zero, '/');
+	if (!cp )
+		return argv_zero;
+	else
+		return cp+1;
+}
+
+static jmp_buf alarm_env;
+
+static void alarm_signal(int signal EXT2FS_ATTR((unused)))
+{
+	longjmp(alarm_env, 1);
+}
+
+void proceed_question(int delay)
+{
+	char buf[256];
+	const char *short_yes = _("yY");
+	const char *english_yes = "yY";
+
+	fflush(stdout);
+	fflush(stderr);
+	if (delay > 0) {
+		if (setjmp(alarm_env)) {
+			signal(SIGALRM, SIG_IGN);
+			printf("%s", _("<proceeding>\n"));
+			return;
+		}
+		signal(SIGALRM, alarm_signal);
+		printf(_("Proceed anyway (or wait %d seconds to proceed) ? (y,N) "),
+		       delay);
+		alarm(delay);
+	} else
+		fputs(_("Proceed anyway? (y,N) "), stdout);
+	buf[0] = 0;
+	if (!fgets(buf, sizeof(buf), stdin) ||
+	    strchr(_("nN"), buf[0]) ||
+	    !(strchr(short_yes, buf[0]) ||
+	      strchr(english_yes, buf[0]))) {
+		putc('\n', stdout);
+		exit(1);
+	}
+	signal(SIGALRM, SIG_IGN);
+}
+
+void check_mount(const char *device, int force, const char *type)
+{
+	errcode_t	retval;
+	int		mount_flags;
+
+	retval = ext2fs_check_if_mounted(device, &mount_flags);
+	if (retval) {
+		com_err("ext2fs_check_if_mount", retval,
+			_("while determining whether %s is mounted."),
+			device);
+		return;
+	}
+	if (mount_flags & EXT2_MF_MOUNTED) {
+		fprintf(stderr, _("%s is mounted; "), device);
+		if (force >= 2) {
+			fputs(_("mke2fs forced anyway.  Hope /etc/mtab is "
+				"incorrect.\n"), stderr);
+			return;
+		}
+	abort_mke2fs:
+		fprintf(stderr, _("will not make a %s here!\n"), type);
+		exit(1);
+	}
+	if (mount_flags & EXT2_MF_BUSY) {
+		fprintf(stderr, _("%s is apparently in use by the system; "),
+			device);
+		if (force >= 2) {
+			fputs(_("mke2fs forced anyway.\n"), stderr);
+			return;
+		}
+		goto abort_mke2fs;
+	}
+}
+
+void parse_journal_opts(const char *opts)
+{
+	char	*buf, *token, *next, *p, *arg;
+	int	len;
+	int	journal_usage = 0;
+
+	len = strlen(opts);
+	buf = malloc(len+1);
+	if (!buf) {
+		fputs(_("Couldn't allocate memory to parse journal "
+			"options!\n"), stderr);
+		exit(1);
+	}
+	strcpy(buf, opts);
+	for (token = buf; token && *token; token = next) {
+		p = strchr(token, ',');
+		next = 0;
+		if (p) {
+			*p = 0;
+			next = p+1;
+		}
+		arg = strchr(token, '=');
+		if (arg) {
+			*arg = 0;
+			arg++;
+		}
+#if 0
+		printf("Journal option=%s, argument=%s\n", token,
+		       arg ? arg : "NONE");
+#endif
+		if (strcmp(token, "device") == 0) {
+			journal_device = get_devname(NULL, arg, NULL);
+			if (!journal_device) {
+				if (arg)
+					fprintf(stderr, _("\nCould not find "
+						"journal device matching %s\n"),
+						arg);
+				journal_usage++;
+				continue;
+			}
+		} else if (strcmp(token, "size") == 0) {
+			if (!arg) {
+				journal_usage++;
+				continue;
+			}
+			journal_size = strtoul(arg, &p, 0);
+			if (*p)
+				journal_usage++;
+		} else if (strcmp(token, "fast_commit_size") == 0) {
+			if (!arg) {
+				journal_usage++;
+				continue;
+			}
+			journal_fc_size = strtoul(arg, &p, 0);
+			if (*p)
+				journal_usage++;
+		} else if (!strcmp(token, "location")) {
+			if (!arg) {
+				journal_usage++;
+				continue;
+			}
+			journal_location_string = strdup(arg);
+		} else if (strcmp(token, "v1_superblock") == 0) {
+			journal_flags |= EXT2_MKJOURNAL_V1_SUPER;
+			continue;
+		} else
+			journal_usage++;
+	}
+	if (journal_usage) {
+		fputs(_("\nBad journal options specified.\n\n"
+			"Journal options are separated by commas, "
+			"and may take an argument which\n"
+			"\tis set off by an equals ('=') sign.\n\n"
+			"Valid journal options are:\n"
+			"\tsize=<journal size in megabytes>\n"
+			"\tdevice=<journal device>\n"
+			"\tlocation=<journal location>\n\n"
+			"The journal size must be between "
+			"1024 and 10240000 filesystem blocks.\n\n"), stderr);
+		free(buf);
+		exit(1);
+	}
+	free(buf);
+}
+
+static inline int jsize_to_blks(ext2_filsys fs, int size)
+{
+	return (size * 1024) / (fs->blocksize / 1024);
+}
+
+/* Fast commit size is in KBs */
+static inline int fcsize_to_blks(ext2_filsys fs, int size)
+{
+	return (size * 1024) / (fs->blocksize);
+}
+
+/*
+ * Determine the number of journal blocks to use, either via
+ * user-specified # of megabytes, or via some intelligently selected
+ * defaults.
+ *
+ * Find a reasonable journal file size (in blocks) given the number of blocks in
+ * the filesystem. For very small filesystems, it is not reasonable to have a
+ * journal that fills more than half of the filesystem.
+ */
+void figure_journal_size(struct ext2fs_journal_params *jparams,
+		int requested_j_size, int requested_fc_size, ext2_filsys fs)
+{
+	int total_blocks, ret;
+
+	ret = ext2fs_get_journal_params(jparams, fs);
+	if (ret) {
+		fputs(_("\nFilesystem too small for a journal\n"), stderr);
+		return;
+	}
+
+	if (requested_j_size > 0 ||
+		(ext2fs_has_feature_fast_commit(fs->super) && requested_fc_size > 0)) {
+		if (requested_j_size > 0)
+			jparams->num_journal_blocks =
+				jsize_to_blks(fs, requested_j_size);
+		if (ext2fs_has_feature_fast_commit(fs->super) &&
+			requested_fc_size > 0)
+			jparams->num_fc_blocks =
+				fcsize_to_blks(fs, requested_fc_size);
+		else if (!ext2fs_has_feature_fast_commit(fs->super))
+			jparams->num_fc_blocks = 0;
+		total_blocks = jparams->num_journal_blocks + jparams->num_fc_blocks;
+		if (total_blocks < 1024 || total_blocks > 10240000) {
+			fprintf(stderr, _("\nThe total requested journal "
+				"size is %d blocks; it must be\n"
+				"between 1024 and 10240000 blocks.  "
+				"Aborting.\n"),
+				total_blocks);
+			exit(1);
+		}
+		if ((unsigned int) total_blocks > ext2fs_free_blocks_count(fs->super) / 2) {
+			fputs(_("\nTotal journal size too big for filesystem.\n"),
+			      stderr);
+			exit(1);
+		}
+	}
+}
+
+void print_check_message(int mnt, unsigned int check)
+{
+	if (mnt < 0)
+		mnt = 0;
+	if (!mnt && !check)
+		return;
+	printf(_("This filesystem will be automatically "
+		 "checked every %d mounts or\n"
+		 "%g days, whichever comes first.  "
+		 "Use tune2fs -c or -i to override.\n"),
+	       mnt, ((double) check) / (3600 * 24));
+}
+
+void dump_mmp_msg(struct mmp_struct *mmp, const char *msg)
+{
+
+	if (msg)
+		printf("MMP check failed: %s\n", msg);
+	if (mmp) {
+		time_t t = mmp->mmp_time;
+
+		printf("MMP error info: node: %.*s, device: %.*s, updated: %s",
+		       EXT2_LEN_STR(mmp->mmp_nodename),
+		       EXT2_LEN_STR(mmp->mmp_bdevname), ctime(&t));
+	}
+}