[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/e2fsprogs/e2fsprogs-1.42.9/debugfs/util.c b/ap/app/e2fsprogs/e2fsprogs-1.42.9/debugfs/util.c
new file mode 100644
index 0000000..aafbc56
--- /dev/null
+++ b/ap/app/e2fsprogs/e2fsprogs-1.42.9/debugfs/util.c
@@ -0,0 +1,482 @@
+/*
+ * util.c --- utilities for the debugfs program
+ *
+ * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
+ * redistributed under the terms of the GNU Public License.
+ *
+ */
+
+#define _XOPEN_SOURCE 600 /* needed for strptime */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#include <signal.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+#ifdef HAVE_OPTRESET
+extern int optreset; /* defined by BSD, but not others */
+#endif
+
+#include "ss/ss.h"
+#include "debugfs.h"
+
+/*
+ * This function resets the libc getopt() function, which keeps
+ * internal state. Bad design! Stupid libc API designers! No
+ * biscuit!
+ *
+ * BSD-derived getopt() functions require that optind be reset to 1 in
+ * order to reset getopt() state. This used to be generally accepted
+ * way of resetting getopt(). However, glibc's getopt()
+ * has additional getopt() state beyond optind, and requires that
+ * optind be set zero to reset its state. So the unfortunate state of
+ * affairs is that BSD-derived versions of getopt() misbehave if
+ * optind is set to 0 in order to reset getopt(), and glibc's getopt()
+ * will core dump if optind is set 1 in order to reset getopt().
+ *
+ * More modern versions of BSD require that optreset be set to 1 in
+ * order to reset getopt(). Sigh. Standards, anyone?
+ *
+ * We hide the hair here.
+ */
+void reset_getopt(void)
+{
+#if defined(__GLIBC__) || defined(__linux__)
+ optind = 0;
+#else
+ optind = 1;
+#endif
+#ifdef HAVE_OPTRESET
+ optreset = 1; /* Makes BSD getopt happy */
+#endif
+}
+
+static const char *pager_search_list[] = { "pager", "more", "less", 0 };
+static const char *pager_dir_list[] = { "/usr/bin", "/bin", 0 };
+
+static const char *find_pager(char *buf)
+{
+ const char **i, **j;
+
+ for (i = pager_search_list; *i; i++) {
+ for (j = pager_dir_list; *j; j++) {
+ sprintf(buf, "%s/%s", *j, *i);
+ if (access(buf, X_OK) == 0)
+ return(buf);
+ }
+ }
+ return 0;
+}
+
+FILE *open_pager(void)
+{
+ FILE *outfile = 0;
+ const char *pager = ss_safe_getenv("DEBUGFS_PAGER");
+ char buf[80];
+
+ signal(SIGPIPE, SIG_IGN);
+ if (!isatty(1))
+ return stdout;
+ if (!pager)
+ pager = ss_safe_getenv("PAGER");
+ if (!pager)
+ pager = find_pager(buf);
+ if (!pager ||
+ (strcmp(pager, "__none__") == 0) ||
+ ((outfile = popen(pager, "w")) == 0))
+ return stdout;
+ return outfile;
+}
+
+void close_pager(FILE *stream)
+{
+ if (stream && stream != stdout) pclose(stream);
+}
+
+/*
+ * This routine is used whenever a command needs to turn a string into
+ * an inode.
+ */
+ext2_ino_t string_to_inode(char *str)
+{
+ ext2_ino_t ino;
+ int len = strlen(str);
+ char *end;
+ int retval;
+
+ /*
+ * If the string is of the form <ino>, then treat it as an
+ * inode number.
+ */
+ if ((len > 2) && (str[0] == '<') && (str[len-1] == '>')) {
+ ino = strtoul(str+1, &end, 0);
+ if (*end=='>')
+ return ino;
+ }
+
+ retval = ext2fs_namei(current_fs, root, cwd, str, &ino);
+ if (retval) {
+ com_err(str, retval, 0);
+ return 0;
+ }
+ return ino;
+}
+
+/*
+ * This routine returns 1 if the filesystem is not open, and prints an
+ * error message to that effect.
+ */
+int check_fs_open(char *name)
+{
+ if (!current_fs) {
+ com_err(name, 0, "Filesystem not open");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * This routine returns 1 if a filesystem is open, and prints an
+ * error message to that effect.
+ */
+int check_fs_not_open(char *name)
+{
+ if (current_fs) {
+ com_err(name, 0,
+ "Filesystem %s is still open. Close it first.\n",
+ current_fs->device_name);
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * This routine returns 1 if a filesystem is not opened read/write,
+ * and prints an error message to that effect.
+ */
+int check_fs_read_write(char *name)
+{
+ if (!(current_fs->flags & EXT2_FLAG_RW)) {
+ com_err(name, 0, "Filesystem opened read/only");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * This routine returns 1 if a filesystem is doesn't have its inode
+ * and block bitmaps loaded, and prints an error message to that
+ * effect.
+ */
+int check_fs_bitmaps(char *name)
+{
+ if (!current_fs->block_map || !current_fs->inode_map) {
+ com_err(name, 0, "Filesystem bitmaps not loaded");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * This function takes a __u32 time value and converts it to a string,
+ * using ctime
+ */
+char *time_to_string(__u32 cl)
+{
+ static int do_gmt = -1;
+ time_t t = (time_t) cl;
+ const char *tz;
+
+ if (do_gmt == -1) {
+ /* The diet libc doesn't respect the TZ environemnt variable */
+ tz = ss_safe_getenv("TZ");
+ if (!tz)
+ tz = "";
+ do_gmt = !strcmp(tz, "GMT");
+ }
+
+ return asctime((do_gmt) ? gmtime(&t) : localtime(&t));
+}
+
+/*
+ * Parse a string as a time. Return ((time_t)-1) if the string
+ * doesn't appear to be a sane time.
+ */
+time_t string_to_time(const char *arg)
+{
+ struct tm ts;
+ time_t ret;
+ char *tmp;
+
+ if (strcmp(arg, "now") == 0) {
+ return time(0);
+ }
+ if (arg[0] == '@') {
+ /* interpret it as an integer */
+ ret = strtoul(arg+1, &tmp, 0);
+ if (*tmp)
+ return ((time_t) -1);
+ return ret;
+ }
+ memset(&ts, 0, sizeof(ts));
+#ifdef HAVE_STRPTIME
+ strptime(arg, "%Y%m%d%H%M%S", &ts);
+#else
+ sscanf(arg, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
+ &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
+ ts.tm_year -= 1900;
+ ts.tm_mon -= 1;
+ if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
+ ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
+ ts.tm_min > 59 || ts.tm_sec > 61)
+ ts.tm_mday = 0;
+#endif
+ ts.tm_isdst = -1;
+ ret = mktime(&ts);
+ if (ts.tm_mday == 0 || ret == ((time_t) -1)) {
+ /* Try it as an integer... */
+ ret = strtoul(arg, &tmp, 0);
+ if (*tmp)
+ return ((time_t) -1);
+ }
+ return ret;
+}
+
+/*
+ * This function will convert a string to an unsigned long, printing
+ * an error message if it fails, and returning success or failure in err.
+ */
+unsigned long parse_ulong(const char *str, const char *cmd,
+ const char *descr, int *err)
+{
+ char *tmp;
+ unsigned long ret;
+
+ ret = strtoul(str, &tmp, 0);
+ if (*tmp == 0) {
+ if (err)
+ *err = 0;
+ return ret;
+ }
+ com_err(cmd, 0, "Bad %s - %s", descr, str);
+ if (err)
+ *err = 1;
+ else
+ exit(1);
+ return 0;
+}
+
+/*
+ * This function will convert a string to an unsigned long long, printing
+ * an error message if it fails, and returning success or failure in err.
+ */
+unsigned long long parse_ulonglong(const char *str, const char *cmd,
+ const char *descr, int *err)
+{
+ char *tmp;
+ unsigned long long ret;
+
+ ret = strtoull(str, &tmp, 0);
+ if (*tmp == 0) {
+ if (err)
+ *err = 0;
+ return ret;
+ }
+ com_err(cmd, 0, "Bad %s - %s", descr, str);
+ if (err)
+ *err = 1;
+ else
+ exit(1);
+ return 0;
+}
+
+/*
+ * This function will convert a string to a block number. It returns
+ * 0 on success, 1 on failure.
+ */
+int strtoblk(const char *cmd, const char *str, blk64_t *ret)
+{
+ blk64_t blk;
+ int err;
+
+ blk = parse_ulonglong(str, cmd, "block number", &err);
+ *ret = blk;
+ if (err)
+ com_err(cmd, 0, "Invalid block number: %s", str);
+ return err;
+}
+
+/*
+ * This is a common helper function used by the command processing
+ * routines
+ */
+int common_args_process(int argc, char *argv[], int min_argc, int max_argc,
+ const char *cmd, const char *usage, int flags)
+{
+ if (argc < min_argc || argc > max_argc) {
+ com_err(argv[0], 0, "Usage: %s %s", cmd, usage);
+ return 1;
+ }
+ if (flags & CHECK_FS_NOTOPEN) {
+ if (check_fs_not_open(argv[0]))
+ return 1;
+ } else {
+ if (check_fs_open(argv[0]))
+ return 1;
+ }
+ if ((flags & CHECK_FS_RW) && check_fs_read_write(argv[0]))
+ return 1;
+ if ((flags & CHECK_FS_BITMAPS) && check_fs_bitmaps(argv[0]))
+ return 1;
+ return 0;
+}
+
+/*
+ * This is a helper function used by do_stat, do_freei, do_seti, and
+ * do_testi, etc. Basically, any command which takes a single
+ * argument which is a file/inode number specifier.
+ */
+int common_inode_args_process(int argc, char *argv[],
+ ext2_ino_t *inode, int flags)
+{
+ if (common_args_process(argc, argv, 2, 2, argv[0], "<file>", flags))
+ return 1;
+
+ *inode = string_to_inode(argv[1]);
+ if (!*inode)
+ return 1;
+ return 0;
+}
+
+/*
+ * This is a helper function used by do_freeb, do_setb, and do_testb
+ */
+int common_block_args_process(int argc, char *argv[],
+ blk64_t *block, blk64_t *count)
+{
+ int err;
+
+ if (common_args_process(argc, argv, 2, 3, argv[0],
+ "<block> [count]", CHECK_FS_BITMAPS))
+ return 1;
+
+ if (strtoblk(argv[0], argv[1], block))
+ return 1;
+ if (*block == 0) {
+ com_err(argv[0], 0, "Invalid block number 0");
+ err = 1;
+ }
+
+ if (argc > 2) {
+ err = strtoblk(argv[0], argv[2], count);
+ if (err)
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_read_inode_full(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd, int bufsize)
+{
+ int retval;
+
+ retval = ext2fs_read_inode_full(current_fs, ino, inode, bufsize);
+ if (retval) {
+ com_err(cmd, retval, "while reading inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_read_inode(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd)
+{
+ int retval;
+
+ retval = ext2fs_read_inode(current_fs, ino, inode);
+ if (retval) {
+ com_err(cmd, retval, "while reading inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_write_inode_full(ext2_ino_t ino,
+ struct ext2_inode *inode,
+ const char *cmd,
+ int bufsize)
+{
+ int retval;
+
+ retval = ext2fs_write_inode_full(current_fs, ino,
+ inode, bufsize);
+ if (retval) {
+ com_err(cmd, retval, "while writing inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_write_inode(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd)
+{
+ int retval;
+
+ retval = ext2fs_write_inode(current_fs, ino, inode);
+ if (retval) {
+ com_err(cmd, retval, "while writing inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_write_new_inode(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd)
+{
+ int retval;
+
+ retval = ext2fs_write_new_inode(current_fs, ino, inode);
+ if (retval) {
+ com_err(cmd, retval, "while creating inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Given a mode, return the ext2 file type
+ */
+int ext2_file_type(unsigned int mode)
+{
+ if (LINUX_S_ISREG(mode))
+ return EXT2_FT_REG_FILE;
+
+ if (LINUX_S_ISDIR(mode))
+ return EXT2_FT_DIR;
+
+ if (LINUX_S_ISCHR(mode))
+ return EXT2_FT_CHRDEV;
+
+ if (LINUX_S_ISBLK(mode))
+ return EXT2_FT_BLKDEV;
+
+ if (LINUX_S_ISLNK(mode))
+ return EXT2_FT_SYMLINK;
+
+ if (LINUX_S_ISFIFO(mode))
+ return EXT2_FT_FIFO;
+
+ if (LINUX_S_ISSOCK(mode))
+ return EXT2_FT_SOCK;
+
+ return 0;
+}