mirror of
https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
synced 2024-12-18 14:30:44 +08:00
571fc5a89c
- Renamed linux/list.h to be linux/linked_list.h to work around a problem caused by diet libc insistence to search the kernel header files ahead of all other files in the include path, including the user specified include files. - Worked around a bug in diet libc which core dumps when using putc with stderr by using fputs instead. As a bonus, this also shaved a few bytes off of com_err.o. - Fixed a real bug in debugfs which was detected because diet libc was more sensitive than glibc when incorrectly using fclose() where pclose() is required.
138 lines
2.5 KiB
C
138 lines
2.5 KiB
C
/*
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* util.c --- utilities for the debugfs program
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*
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* Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
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* redistributed under the terms of the GNU Public License.
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*
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <time.h>
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#include <signal.h>
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#include "debugfs.h"
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FILE *open_pager(void)
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{
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FILE *outfile;
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const char *pager = getenv("PAGER");
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signal(SIGPIPE, SIG_IGN);
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if (!pager)
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pager = "more";
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outfile = popen(pager, "w");
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if (!outfile)
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outfile = stdout;
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return (outfile);
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}
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void close_pager(FILE *stream)
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{
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if (stream && stream != stdout) pclose(stream);
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}
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/*
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* This routine is used whenever a command needs to turn a string into
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* an inode.
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*/
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ext2_ino_t string_to_inode(char *str)
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{
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ext2_ino_t ino;
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int len = strlen(str);
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char *end;
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int retval;
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/*
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* If the string is of the form <ino>, then treat it as an
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* inode number.
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*/
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if ((len > 2) && (str[0] == '<') && (str[len-1] == '>')) {
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ino = strtoul(str+1, &end, 0);
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if (*end=='>')
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return ino;
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}
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retval = ext2fs_namei(current_fs, root, cwd, str, &ino);
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if (retval) {
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com_err(str, retval, "");
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return 0;
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}
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return ino;
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}
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/*
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* This routine returns 1 if the filesystem is not open, and prints an
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* error message to that effect.
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*/
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int check_fs_open(char *name)
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{
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if (!current_fs) {
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com_err(name, 0, "Filesystem not open");
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return 1;
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}
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return 0;
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}
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/*
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* This routine returns 1 if a filesystem is open, and prints an
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* error message to that effect.
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*/
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int check_fs_not_open(char *name)
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{
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if (current_fs) {
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com_err(name, 0,
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"Filesystem %s is still open. Close it first.\n",
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current_fs->device_name);
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return 1;
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}
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return 0;
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}
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/*
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* This routine returns 1 if a filesystem is not opened read/write,
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* and prints an error message to that effect.
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*/
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int check_fs_read_write(char *name)
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{
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if (!(current_fs->flags & EXT2_FLAG_RW)) {
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com_err(name, 0, "Filesystem opened read/only");
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return 1;
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}
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return 0;
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}
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/*
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* This routine returns 1 if a filesystem is doesn't have its inode
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* and block bitmaps loaded, and prints an error message to that
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* effect.
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*/
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int check_fs_bitmaps(char *name)
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{
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if (!current_fs->block_map || !current_fs->inode_map) {
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com_err(name, 0, "Filesystem bitmaps not loaded");
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return 1;
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}
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return 0;
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}
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/*
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* This function takes a __u32 time value and converts it to a string,
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* using ctime
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*/
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char *time_to_string(__u32 cl)
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{
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time_t t = (time_t) cl;
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return ctime(&t);
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}
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