mirror of
https://github.com/MidnightCommander/mc
synced 2024-12-23 21:06:52 +03:00
4cea5be1ac
Split assignments and conditions. Type accuracy. Minor optimization. Thanks Vit Rosin for original patch. Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
1759 lines
42 KiB
C
1759 lines
42 KiB
C
/* Various utilities
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Copyright (C) 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
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2004, 2005, 2007, 2009 Free Software Foundation, Inc.
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Written 1994, 1995, 1996 by:
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Miguel de Icaza, Janne Kukonlehto, Dugan Porter,
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Jakub Jelinek, Mauricio Plaza.
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The file_date routine is mostly from GNU's fileutils package,
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written by Richard Stallman and David MacKenzie.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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/** \file
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* \brief Source: various utilities
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*/
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#include <config.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "lib/global.h"
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#include "lib/tty/win.h" /* xterm_flag */
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#include "lib/search.h"
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#include "lib/mcconfig.h"
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#include "lib/timefmt.h"
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#include "lib/fileloc.h"
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#include "lib/vfs/mc-vfs/vfs.h"
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#include "lib/strutil.h"
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#include "src/filegui.h"
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#include "src/file.h" /* copy_file_file() */
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#ifndef HAVE_CHARSET
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#include "src/main.h" /* eight_bit_clean */
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#endif
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int easy_patterns = 1;
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/*
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* If true, SI units (1000 based) will be used for
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* larger units (kilobyte, megabyte, ...).
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* If false binary units (1024 based) will be used.
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*/
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int kilobyte_si = 0;
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char *user_recent_timeformat = NULL; /* time format string for recent dates */
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char *user_old_timeformat = NULL; /* time format string for older dates */
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/*
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* Cache variable for the i18n_checktimelength function,
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* initially set to a clearly invalid value to show that
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* it hasn't been initialized yet.
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*/
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static size_t i18n_timelength_cache = MAX_I18NTIMELENGTH + 1;
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extern void
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str_replace (char *s, char from, char to)
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{
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for (; *s != '\0'; s++)
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{
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if (*s == from)
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*s = to;
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}
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}
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static inline int
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is_7bit_printable (unsigned char c)
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{
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return (c > 31 && c < 127);
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}
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static inline int
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is_iso_printable (unsigned char c)
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{
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return ((c > 31 && c < 127) || c >= 160);
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}
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static inline int
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is_8bit_printable (unsigned char c)
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{
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/* "Full 8 bits output" doesn't work on xterm */
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if (xterm_flag)
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return is_iso_printable (c);
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return (c > 31 && c != 127 && c != 155);
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}
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int
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is_printable (int c)
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{
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c &= 0xff;
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#ifdef HAVE_CHARSET
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/* "Display bits" is ignored, since the user controls the output
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by setting the output codepage */
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return is_8bit_printable (c);
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#else
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if (!eight_bit_clean)
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return is_7bit_printable (c);
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if (full_eight_bits)
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{
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return is_8bit_printable (c);
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}
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else
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return is_iso_printable (c);
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#endif /* !HAVE_CHARSET */
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}
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/* Calculates the message dimensions (lines and columns) */
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void
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msglen (const char *text, int *lines, int *columns)
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{
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int nlines = 1; /* even the empty string takes one line */
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int ncolumns = 0;
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int colindex = 0;
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for (; *text != '\0'; text++)
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{
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if (*text == '\n')
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{
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nlines++;
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colindex = 0;
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}
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else
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{
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colindex++;
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if (colindex > ncolumns)
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ncolumns = colindex;
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}
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}
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*lines = nlines;
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*columns = ncolumns;
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}
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/*
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* Copy from s to d, and trim the beginning if necessary, and prepend
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* "..." in this case. The destination string can have at most len
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* bytes, not counting trailing 0.
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*/
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char *
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trim (const char *s, char *d, int len)
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{
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int source_len;
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/* Sanity check */
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len = max (len, 0);
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source_len = strlen (s);
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if (source_len > len)
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{
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/* Cannot fit the whole line */
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if (len <= 3)
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{
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/* We only have room for the dots */
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memset (d, '.', len);
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d[len] = 0;
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return d;
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}
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else
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{
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/* Begin with ... and add the rest of the source string */
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memset (d, '.', 3);
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strcpy (d + 3, s + 3 + source_len - len);
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}
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}
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else
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/* We can copy the whole line */
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strcpy (d, s);
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return d;
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}
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/*
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* Quote the filename for the purpose of inserting it into the command
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* line. If quote_percent is 1, replace "%" with "%%" - the percent is
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* processed by the mc command line.
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*/
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char *
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name_quote (const char *s, int quote_percent)
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{
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char *ret, *d;
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d = ret = g_malloc (strlen (s) * 2 + 2 + 1);
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if (*s == '-')
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{
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*d++ = '.';
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*d++ = '/';
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}
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for (; *s; s++, d++)
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{
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switch (*s)
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{
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case '%':
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if (quote_percent)
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*d++ = '%';
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break;
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case '\'':
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case '\\':
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case '\r':
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case '\n':
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case '\t':
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case '"':
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case ';':
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case ' ':
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case '?':
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case '|':
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case '[':
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case ']':
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case '{':
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case '}':
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case '<':
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case '>':
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case '`':
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case '!':
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case '$':
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case '&':
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case '*':
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case '(':
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case ')':
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*d++ = '\\';
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break;
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case '~':
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case '#':
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if (d == ret)
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*d++ = '\\';
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break;
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}
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*d = *s;
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}
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*d = '\0';
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return ret;
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}
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char *
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fake_name_quote (const char *s, int quote_percent)
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{
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(void) quote_percent;
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return g_strdup (s);
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}
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/*
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* Remove the middle part of the string to fit given length.
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* Use "~" to show where the string was truncated.
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* Return static buffer, no need to free() it.
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*/
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const char *
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name_trunc (const char *txt, size_t trunc_len)
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{
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return str_trunc (txt, trunc_len);
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}
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/*
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* path_trunc() is the same as name_trunc() above but
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* it deletes possible password from path for security
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* reasons.
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*/
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const char *
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path_trunc (const char *path, size_t trunc_len)
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{
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char *secure_path = strip_password (g_strdup (path), 1);
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const char *ret = str_trunc (secure_path, trunc_len);
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g_free (secure_path);
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return ret;
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}
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const char *
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size_trunc (double size)
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{
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static char x[BUF_TINY];
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long int divisor = 1;
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const char *xtra = "";
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if (size > 999999999L)
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{
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divisor = kilobyte_si ? 1000 : 1024;
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xtra = kilobyte_si ? "k" : "K";
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if (size / divisor > 999999999L)
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{
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divisor = kilobyte_si ? (1000 * 1000) : (1024 * 1024);
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xtra = kilobyte_si ? "m" : "M";
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}
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}
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g_snprintf (x, sizeof (x), "%.0f%s", (size / divisor), xtra);
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return x;
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}
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const char *
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size_trunc_sep (double size)
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{
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static char x[60];
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int count;
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const char *p, *y;
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char *d;
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p = y = size_trunc (size);
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p += strlen (p) - 1;
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d = x + sizeof (x) - 1;
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*d-- = 0;
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while (p >= y && isalpha ((unsigned char) *p))
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*d-- = *p--;
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for (count = 0; p >= y; count++)
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{
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if (count == 3)
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{
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*d-- = ',';
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count = 0;
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}
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*d-- = *p--;
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}
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d++;
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if (*d == ',')
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d++;
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return d;
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}
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/*
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* Print file SIZE to BUFFER, but don't exceed LEN characters,
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* not including trailing 0. BUFFER should be at least LEN+1 long.
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* This function is called for every file on panels, so avoid
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* floating point by any means.
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*
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* Units: size units (filesystem sizes are 1K blocks)
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* 0=bytes, 1=Kbytes, 2=Mbytes, etc.
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*/
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void
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size_trunc_len (char *buffer, unsigned int len, off_t size, int units)
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{
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/* Avoid taking power for every file. */
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static const off_t power10[] = { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000,
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1000000000
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};
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static const char *const suffix[] = { "", "K", "M", "G", "T", "P", "E", "Z", "Y", NULL };
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static const char *const suffix_lc[] = { "", "k", "m", "g", "t", "p", "e", "z", "y", NULL };
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int j = 0;
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int size_remain;
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if (len == 0)
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len = 9;
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/*
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* recalculate from 1024 base to 1000 base if units>0
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* We can't just multiply by 1024 - that might cause overflow
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* if off_t type is too small
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*/
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if (units && kilobyte_si)
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{
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for (j = 0; j < units; j++)
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{
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size_remain = ((size % 125) * 1024) / 1000; /* size mod 125, recalculated */
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size = size / 125; /* 128/125 = 1024/1000 */
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size = size * 128; /* This will convert size from multiple of 1024 to multiple of 1000 */
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size += size_remain; /* Re-add remainder lost by division/multiplication */
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}
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}
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for (j = units; suffix[j] != NULL; j++)
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{
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if (size == 0)
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{
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if (j == units)
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{
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/* Empty files will print "0" even with minimal width. */
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g_snprintf (buffer, len + 1, "0");
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break;
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}
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/* Use "~K" or just "K" if len is 1. Use "B" for bytes. */
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g_snprintf (buffer, len + 1, (len > 1) ? "~%s" : "%s",
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(j > 1) ? (kilobyte_si ? suffix_lc[j - 1] : suffix[j - 1]) : "B");
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break;
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}
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if (size < power10[len - (j > 0)])
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{
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g_snprintf (buffer, len + 1, "%lu%s", (unsigned long) size,
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kilobyte_si ? suffix_lc[j] : suffix[j]);
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break;
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}
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/* Powers of 1000 or 1024, with rounding. */
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if (kilobyte_si)
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{
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size = (size + 500) / 1000;
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}
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else
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{
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size = (size + 512) >> 10;
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}
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}
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}
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int
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is_exe (mode_t mode)
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{
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if ((S_IXUSR & mode) || (S_IXGRP & mode) || (S_IXOTH & mode))
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return 1;
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return 0;
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}
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#define ismode(n,m) ((n & m) == m)
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const char *
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string_perm (mode_t mode_bits)
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{
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static char mode[11];
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strcpy (mode, "----------");
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if (S_ISDIR (mode_bits))
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mode[0] = 'd';
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if (S_ISCHR (mode_bits))
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mode[0] = 'c';
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if (S_ISBLK (mode_bits))
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mode[0] = 'b';
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if (S_ISLNK (mode_bits))
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mode[0] = 'l';
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if (S_ISFIFO (mode_bits))
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mode[0] = 'p';
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if (S_ISNAM (mode_bits))
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mode[0] = 'n';
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if (S_ISSOCK (mode_bits))
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mode[0] = 's';
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if (S_ISDOOR (mode_bits))
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mode[0] = 'D';
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if (ismode (mode_bits, S_IXOTH))
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mode[9] = 'x';
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if (ismode (mode_bits, S_IWOTH))
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mode[8] = 'w';
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if (ismode (mode_bits, S_IROTH))
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mode[7] = 'r';
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if (ismode (mode_bits, S_IXGRP))
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mode[6] = 'x';
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if (ismode (mode_bits, S_IWGRP))
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mode[5] = 'w';
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if (ismode (mode_bits, S_IRGRP))
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mode[4] = 'r';
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if (ismode (mode_bits, S_IXUSR))
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mode[3] = 'x';
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if (ismode (mode_bits, S_IWUSR))
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mode[2] = 'w';
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if (ismode (mode_bits, S_IRUSR))
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mode[1] = 'r';
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#ifdef S_ISUID
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if (ismode (mode_bits, S_ISUID))
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mode[3] = (mode[3] == 'x') ? 's' : 'S';
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#endif /* S_ISUID */
|
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#ifdef S_ISGID
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if (ismode (mode_bits, S_ISGID))
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mode[6] = (mode[6] == 'x') ? 's' : 'S';
|
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#endif /* S_ISGID */
|
|
#ifdef S_ISVTX
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if (ismode (mode_bits, S_ISVTX))
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mode[9] = (mode[9] == 'x') ? 't' : 'T';
|
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#endif /* S_ISVTX */
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return mode;
|
|
}
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|
|
/* p: string which might contain an url with a password (this parameter is
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modified in place).
|
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has_prefix = 0: The first parameter is an url without a prefix
|
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(user[:pass]@]machine[:port][remote-dir). Delete
|
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the password.
|
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has_prefix = 1: Search p for known url prefixes. If found delete
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the password from the url.
|
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Caveat: only the first url is found
|
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*/
|
|
char *
|
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strip_password (char *p, int has_prefix)
|
|
{
|
|
static const struct
|
|
{
|
|
const char *name;
|
|
size_t len;
|
|
} prefixes[] =
|
|
{
|
|
{
|
|
"/#ftp:", 6},
|
|
{
|
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"ftp://", 6},
|
|
{
|
|
"/#mc:", 5},
|
|
{
|
|
"mc://", 5},
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|
{
|
|
"/#smb:", 6},
|
|
{
|
|
"smb://", 6},
|
|
{
|
|
"/#sh:", 5},
|
|
{
|
|
"sh://", 5},
|
|
{
|
|
"ssh://", 6}
|
|
};
|
|
char *at, *inner_colon, *dir;
|
|
size_t i;
|
|
char *result = p;
|
|
|
|
for (i = 0; i < sizeof (prefixes) / sizeof (prefixes[0]); i++)
|
|
{
|
|
char *q;
|
|
|
|
if (has_prefix)
|
|
{
|
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q = strstr (p, prefixes[i].name);
|
|
if (q == NULL)
|
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continue;
|
|
else
|
|
p = q + prefixes[i].len;
|
|
}
|
|
|
|
dir = strchr (p, PATH_SEP);
|
|
if (dir != NULL)
|
|
*dir = '\0';
|
|
|
|
/* search for any possible user */
|
|
at = strrchr (p, '@');
|
|
|
|
if (dir)
|
|
*dir = PATH_SEP;
|
|
|
|
/* We have a username */
|
|
if (at)
|
|
{
|
|
inner_colon = memchr (p, ':', at - p);
|
|
if (inner_colon)
|
|
memmove (inner_colon, at, strlen (at) + 1);
|
|
}
|
|
break;
|
|
}
|
|
return (result);
|
|
}
|
|
|
|
const char *
|
|
strip_home_and_password (const char *dir)
|
|
{
|
|
size_t len;
|
|
static char newdir[MC_MAXPATHLEN];
|
|
|
|
len = strlen (home_dir);
|
|
if (home_dir != NULL && strncmp (dir, home_dir, len) == 0 &&
|
|
(dir[len] == PATH_SEP || dir[len] == '\0'))
|
|
{
|
|
newdir[0] = '~';
|
|
g_strlcpy (&newdir[1], &dir[len], sizeof (newdir) - 1);
|
|
return newdir;
|
|
}
|
|
|
|
/* We do not strip homes in /#ftp tree, I do not like ~'s there
|
|
(see ftpfs.c why) */
|
|
g_strlcpy (newdir, dir, sizeof (newdir));
|
|
strip_password (newdir, 1);
|
|
return newdir;
|
|
}
|
|
|
|
const char *
|
|
extension (const char *filename)
|
|
{
|
|
const char *d = strrchr (filename, '.');
|
|
return (d != NULL) ? d + 1 : "";
|
|
}
|
|
|
|
int
|
|
exist_file (const char *name)
|
|
{
|
|
return access (name, R_OK) == 0;
|
|
}
|
|
|
|
int
|
|
check_for_default (const char *default_file, const char *file)
|
|
{
|
|
if (!exist_file (file))
|
|
{
|
|
FileOpContext *ctx;
|
|
FileOpTotalContext *tctx;
|
|
|
|
if (!exist_file (default_file))
|
|
return -1;
|
|
|
|
ctx = file_op_context_new (OP_COPY);
|
|
tctx = file_op_total_context_new ();
|
|
file_op_context_create_ui (ctx, 0, FALSE);
|
|
copy_file_file (tctx, ctx, default_file, file);
|
|
file_op_total_context_destroy (tctx);
|
|
file_op_context_destroy (ctx);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
char *
|
|
load_file (const char *filename)
|
|
{
|
|
FILE *data_file;
|
|
struct stat s;
|
|
char *data;
|
|
long read_size;
|
|
|
|
data_file = fopen (filename, "r");
|
|
if (data_file == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
if (fstat (fileno (data_file), &s) != 0)
|
|
{
|
|
fclose (data_file);
|
|
return 0;
|
|
}
|
|
data = g_malloc (s.st_size + 1);
|
|
read_size = fread (data, 1, s.st_size, data_file);
|
|
data[read_size] = 0;
|
|
fclose (data_file);
|
|
|
|
if (read_size > 0)
|
|
return data;
|
|
else
|
|
{
|
|
g_free (data);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
char *
|
|
load_mc_home_file (const char *_mc_home, const char *_mc_home_alt, const char *filename,
|
|
char **allocated_filename)
|
|
{
|
|
char *hintfile_base, *hintfile;
|
|
char *lang;
|
|
char *data;
|
|
|
|
hintfile_base = concat_dir_and_file (_mc_home, filename);
|
|
lang = guess_message_value ();
|
|
|
|
hintfile = g_strconcat (hintfile_base, ".", lang, (char *) NULL);
|
|
data = load_file (hintfile);
|
|
|
|
if (!data)
|
|
{
|
|
g_free (hintfile);
|
|
g_free (hintfile_base);
|
|
hintfile_base = concat_dir_and_file (_mc_home_alt, filename);
|
|
|
|
hintfile = g_strconcat (hintfile_base, ".", lang, (char *) NULL);
|
|
data = load_file (hintfile);
|
|
|
|
if (!data)
|
|
{
|
|
/* Fall back to the two-letter language code */
|
|
if (lang[0] && lang[1])
|
|
lang[2] = 0;
|
|
g_free (hintfile);
|
|
hintfile = g_strconcat (hintfile_base, ".", lang, (char *) NULL);
|
|
data = load_file (hintfile);
|
|
|
|
if (!data)
|
|
{
|
|
g_free (hintfile);
|
|
hintfile = hintfile_base;
|
|
data = load_file (hintfile_base);
|
|
}
|
|
}
|
|
}
|
|
|
|
g_free (lang);
|
|
|
|
if (hintfile != hintfile_base)
|
|
g_free (hintfile_base);
|
|
|
|
if (allocated_filename)
|
|
*allocated_filename = hintfile;
|
|
else
|
|
g_free (hintfile);
|
|
|
|
return data;
|
|
}
|
|
|
|
/* Check strftime() results. Some systems (i.e. Solaris) have different
|
|
short-month and month name sizes for different locales */
|
|
size_t
|
|
i18n_checktimelength (void)
|
|
{
|
|
size_t length = 0;
|
|
const time_t testtime = time (NULL);
|
|
struct tm *lt = localtime (&testtime);
|
|
|
|
if (i18n_timelength_cache <= MAX_I18NTIMELENGTH)
|
|
return i18n_timelength_cache;
|
|
|
|
if (lt == NULL)
|
|
{
|
|
/* huh, localtime() doesnt seem to work ... falling back to "(invalid)" */
|
|
length = str_term_width1 (_(INVALID_TIME_TEXT));
|
|
}
|
|
else
|
|
{
|
|
char buf[MB_LEN_MAX * MAX_I18NTIMELENGTH + 1];
|
|
|
|
/* We are interested in the longest possible date */
|
|
lt->tm_sec = lt->tm_min = lt->tm_hour = lt->tm_mday = 10;
|
|
|
|
/* Loop through all months to find out the longest one */
|
|
for (lt->tm_mon = 0; lt->tm_mon < 12; lt->tm_mon++) {
|
|
strftime (buf, sizeof(buf) - 1, user_recent_timeformat, lt);
|
|
length = max ((size_t) str_term_width1 (buf), length);
|
|
strftime (buf, sizeof(buf) - 1, user_old_timeformat, lt);
|
|
length = max ((size_t) str_term_width1 (buf), length);
|
|
}
|
|
|
|
length = max ((size_t) str_term_width1 (_(INVALID_TIME_TEXT)), length);
|
|
}
|
|
|
|
/* Don't handle big differences. Use standard value (email bug, please) */
|
|
if (length > MAX_I18NTIMELENGTH || length < MIN_I18NTIMELENGTH)
|
|
length = STD_I18NTIMELENGTH;
|
|
|
|
/* Save obtained value to the cache */
|
|
i18n_timelength_cache = length;
|
|
|
|
return i18n_timelength_cache;
|
|
}
|
|
|
|
const char *
|
|
file_date (time_t when)
|
|
{
|
|
static char timebuf[MB_LEN_MAX * MAX_I18NTIMELENGTH + 1];
|
|
time_t current_time = time ((time_t) 0);
|
|
const char *fmt;
|
|
|
|
if (current_time > when + 6L * 30L * 24L * 60L * 60L /* Old. */
|
|
|| current_time < when - 60L * 60L) /* In the future. */
|
|
/* The file is fairly old or in the future.
|
|
POSIX says the cutoff is 6 months old;
|
|
approximate this by 6*30 days.
|
|
Allow a 1 hour slop factor for what is considered "the future",
|
|
to allow for NFS server/client clock disagreement.
|
|
Show the year instead of the time of day. */
|
|
|
|
fmt = user_old_timeformat;
|
|
else
|
|
fmt = user_recent_timeformat;
|
|
|
|
FMT_LOCALTIME (timebuf, sizeof (timebuf), fmt, when);
|
|
|
|
return timebuf;
|
|
}
|
|
|
|
const char *
|
|
extract_line (const char *s, const char *top)
|
|
{
|
|
static char tmp_line[BUF_MEDIUM];
|
|
char *t = tmp_line;
|
|
|
|
while (*s && *s != '\n' && (size_t) (t - tmp_line) < sizeof (tmp_line) - 1 && s < top)
|
|
*t++ = *s++;
|
|
*t = 0;
|
|
return tmp_line;
|
|
}
|
|
|
|
/* The basename routine */
|
|
const char *
|
|
x_basename (const char *s)
|
|
{
|
|
const char *where;
|
|
return ((where = strrchr (s, PATH_SEP))) ? where + 1 : s;
|
|
}
|
|
|
|
|
|
const char *
|
|
unix_error_string (int error_num)
|
|
{
|
|
static char buffer[BUF_LARGE];
|
|
gchar *strerror_currentlocale;
|
|
|
|
strerror_currentlocale = g_locale_from_utf8 (g_strerror (error_num), -1, NULL, NULL, NULL);
|
|
g_snprintf (buffer, sizeof (buffer), "%s (%d)", strerror_currentlocale, error_num);
|
|
g_free (strerror_currentlocale);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
const char *
|
|
skip_separators (const char *s)
|
|
{
|
|
const char *su = s;
|
|
|
|
for (; *su; str_cnext_char (&su))
|
|
if (*su != ' ' && *su != '\t' && *su != ',')
|
|
break;
|
|
|
|
return su;
|
|
}
|
|
|
|
const char *
|
|
skip_numbers (const char *s)
|
|
{
|
|
const char *su = s;
|
|
|
|
for (; *su; str_cnext_char (&su))
|
|
if (!str_isdigit (su))
|
|
break;
|
|
|
|
return su;
|
|
}
|
|
|
|
/* Remove all control sequences from the argument string. We define
|
|
* "control sequence", in a sort of pidgin BNF, as follows:
|
|
*
|
|
* control-seq = Esc non-'['
|
|
* | Esc '[' (0 or more digits or ';' or '?') (any other char)
|
|
*
|
|
* This scheme works for all the terminals described in my termcap /
|
|
* terminfo databases, except the Hewlett-Packard 70092 and some Wyse
|
|
* terminals. If I hear from a single person who uses such a terminal
|
|
* with MC, I'll be glad to add support for it. (Dugan)
|
|
* Non-printable characters are also removed.
|
|
*/
|
|
|
|
char *
|
|
strip_ctrl_codes (char *s)
|
|
{
|
|
char *w; /* Current position where the stripped data is written */
|
|
char *r; /* Current position where the original data is read */
|
|
char *n;
|
|
|
|
if (!s)
|
|
return 0;
|
|
|
|
for (w = s, r = s; *r;)
|
|
{
|
|
if (*r == ESC_CHAR)
|
|
{
|
|
/* Skip the control sequence's arguments */ ;
|
|
/* '(' need to avoid strange 'B' letter in *Suse (if mc runs under root user) */
|
|
if (*(++r) == '[' || *r == '(')
|
|
{
|
|
/* strchr() matches trailing binary 0 */
|
|
while (*(++r) && strchr ("0123456789;?", *r));
|
|
}
|
|
else if (*r == ']')
|
|
{
|
|
/*
|
|
* Skip xterm's OSC (Operating System Command)
|
|
* http://www.xfree86.org/current/ctlseqs.html
|
|
* OSC P s ; P t ST
|
|
* OSC P s ; P t BEL
|
|
*/
|
|
char *new_r = r;
|
|
|
|
for (; *new_r; ++new_r)
|
|
{
|
|
switch (*new_r)
|
|
{
|
|
/* BEL */
|
|
case '\a':
|
|
r = new_r;
|
|
goto osc_out;
|
|
case ESC_CHAR:
|
|
/* ST */
|
|
if (*(new_r + 1) == '\\')
|
|
{
|
|
r = new_r + 1;
|
|
goto osc_out;
|
|
}
|
|
}
|
|
}
|
|
osc_out:;
|
|
}
|
|
|
|
/*
|
|
* Now we are at the last character of the sequence.
|
|
* Skip it unless it's binary 0.
|
|
*/
|
|
if (*r)
|
|
r++;
|
|
continue;
|
|
}
|
|
|
|
n = str_get_next_char (r);
|
|
if (str_isprint (r))
|
|
{
|
|
memmove (w, r, n - r);
|
|
w += n - r;
|
|
}
|
|
r = n;
|
|
}
|
|
*w = 0;
|
|
return s;
|
|
}
|
|
|
|
|
|
#ifndef ENABLE_VFS
|
|
char *
|
|
get_current_wd (char *buffer, int size)
|
|
{
|
|
char *p;
|
|
int len;
|
|
|
|
p = g_get_current_dir ();
|
|
len = strlen (p) + 1;
|
|
|
|
if (len > size)
|
|
{
|
|
g_free (p);
|
|
return NULL;
|
|
}
|
|
|
|
memcpy (buffer, p, len);
|
|
g_free (p);
|
|
|
|
return buffer;
|
|
}
|
|
#endif /* !ENABLE_VFS */
|
|
|
|
enum compression_type
|
|
get_compression_type (int fd, const char *name)
|
|
{
|
|
unsigned char magic[16];
|
|
size_t str_len;
|
|
|
|
/* Read the magic signature */
|
|
if (mc_read (fd, (char *) magic, 4) != 4)
|
|
return COMPRESSION_NONE;
|
|
|
|
/* GZIP_MAGIC and OLD_GZIP_MAGIC */
|
|
if (magic[0] == 037 && (magic[1] == 0213 || magic[1] == 0236))
|
|
{
|
|
return COMPRESSION_GZIP;
|
|
}
|
|
|
|
/* PKZIP_MAGIC */
|
|
if (magic[0] == 0120 && magic[1] == 0113 && magic[2] == 003 && magic[3] == 004)
|
|
{
|
|
/* Read compression type */
|
|
mc_lseek (fd, 8, SEEK_SET);
|
|
if (mc_read (fd, (char *) magic, 2) != 2)
|
|
return COMPRESSION_NONE;
|
|
|
|
/* Gzip can handle only deflated (8) or stored (0) files */
|
|
if ((magic[0] != 8 && magic[0] != 0) || magic[1] != 0)
|
|
return COMPRESSION_NONE;
|
|
|
|
/* Compatible with gzip */
|
|
return COMPRESSION_GZIP;
|
|
}
|
|
|
|
/* PACK_MAGIC and LZH_MAGIC and compress magic */
|
|
if (magic[0] == 037 && (magic[1] == 036 || magic[1] == 0240 || magic[1] == 0235))
|
|
{
|
|
/* Compatible with gzip */
|
|
return COMPRESSION_GZIP;
|
|
}
|
|
|
|
/* BZIP and BZIP2 files */
|
|
if ((magic[0] == 'B') && (magic[1] == 'Z') && (magic[3] >= '1') && (magic[3] <= '9'))
|
|
{
|
|
switch (magic[2])
|
|
{
|
|
case '0':
|
|
return COMPRESSION_BZIP;
|
|
case 'h':
|
|
return COMPRESSION_BZIP2;
|
|
}
|
|
}
|
|
|
|
/* Support for LZMA (only utils format with magic in header).
|
|
* This is the default format of LZMA utils 4.32.1 and later. */
|
|
|
|
if (mc_read (fd, (char *) magic + 4, 2) != 2)
|
|
return COMPRESSION_NONE;
|
|
|
|
/* LZMA utils format */
|
|
if (magic[0] == 0xFF
|
|
&& magic[1] == 'L'
|
|
&& magic[2] == 'Z' && magic[3] == 'M' && magic[4] == 'A' && magic[5] == 0x00)
|
|
return COMPRESSION_LZMA;
|
|
|
|
/* XZ compression magic */
|
|
if (magic[0] == 0xFD
|
|
&& magic[1] == 0x37
|
|
&& magic[2] == 0x7A && magic[3] == 0x58 && magic[4] == 0x5A && magic[5] == 0x00)
|
|
return COMPRESSION_XZ;
|
|
|
|
str_len = strlen (name);
|
|
/* HACK: we must belive to extention of LZMA file :) ... */
|
|
if ((str_len > 5 && strcmp (&name[str_len - 5], ".lzma") == 0) ||
|
|
(str_len > 4 && strcmp (&name[str_len - 4], ".tlz") == 0))
|
|
return COMPRESSION_LZMA;
|
|
|
|
return COMPRESSION_NONE;
|
|
}
|
|
|
|
const char *
|
|
decompress_extension (int type)
|
|
{
|
|
switch (type)
|
|
{
|
|
case COMPRESSION_GZIP:
|
|
return "#ugz";
|
|
case COMPRESSION_BZIP:
|
|
return "#ubz";
|
|
case COMPRESSION_BZIP2:
|
|
return "#ubz2";
|
|
case COMPRESSION_LZMA:
|
|
return "#ulzma";
|
|
case COMPRESSION_XZ:
|
|
return "#uxz";
|
|
}
|
|
/* Should never reach this place */
|
|
fprintf (stderr, "Fatal: decompress_extension called with an unknown argument\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Hooks */
|
|
void
|
|
add_hook (Hook ** hook_list, void (*hook_fn) (void *), void *data)
|
|
{
|
|
Hook *new_hook = g_new (Hook, 1);
|
|
|
|
new_hook->hook_fn = hook_fn;
|
|
new_hook->next = *hook_list;
|
|
new_hook->hook_data = data;
|
|
|
|
*hook_list = new_hook;
|
|
}
|
|
|
|
void
|
|
execute_hooks (Hook * hook_list)
|
|
{
|
|
Hook *new_hook = 0;
|
|
Hook *p;
|
|
|
|
/* We copy the hook list first so tahat we let the hook
|
|
* function call delete_hook
|
|
*/
|
|
|
|
while (hook_list)
|
|
{
|
|
add_hook (&new_hook, hook_list->hook_fn, hook_list->hook_data);
|
|
hook_list = hook_list->next;
|
|
}
|
|
p = new_hook;
|
|
|
|
while (new_hook)
|
|
{
|
|
(*new_hook->hook_fn) (new_hook->hook_data);
|
|
new_hook = new_hook->next;
|
|
}
|
|
|
|
for (hook_list = p; hook_list;)
|
|
{
|
|
p = hook_list;
|
|
hook_list = hook_list->next;
|
|
g_free (p);
|
|
}
|
|
}
|
|
|
|
void
|
|
delete_hook (Hook ** hook_list, void (*hook_fn) (void *))
|
|
{
|
|
Hook *current, *new_list, *next;
|
|
|
|
new_list = 0;
|
|
|
|
for (current = *hook_list; current; current = next)
|
|
{
|
|
next = current->next;
|
|
if (current->hook_fn == hook_fn)
|
|
g_free (current);
|
|
else
|
|
add_hook (&new_list, current->hook_fn, current->hook_data);
|
|
}
|
|
*hook_list = new_list;
|
|
}
|
|
|
|
int
|
|
hook_present (Hook * hook_list, void (*hook_fn) (void *))
|
|
{
|
|
Hook *p;
|
|
|
|
for (p = hook_list; p; p = p->next)
|
|
if (p->hook_fn == hook_fn)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
wipe_password (char *passwd)
|
|
{
|
|
char *p = passwd;
|
|
|
|
if (!p)
|
|
return;
|
|
for (; *p; p++)
|
|
*p = 0;
|
|
g_free (passwd);
|
|
}
|
|
|
|
/* Convert "\E" -> esc character and ^x to control-x key and ^^ to ^ key */
|
|
/* Returns a newly allocated string */
|
|
char *
|
|
convert_controls (const char *p)
|
|
{
|
|
char *valcopy = g_strdup (p);
|
|
char *q;
|
|
|
|
/* Parse the escape special character */
|
|
for (q = valcopy; *p;)
|
|
{
|
|
if (*p == '\\')
|
|
{
|
|
p++;
|
|
if ((*p == 'e') || (*p == 'E'))
|
|
{
|
|
p++;
|
|
*q++ = ESC_CHAR;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (*p == '^')
|
|
{
|
|
p++;
|
|
if (*p == '^')
|
|
*q++ = *p++;
|
|
else
|
|
{
|
|
char c = (*p | 0x20);
|
|
if (c >= 'a' && c <= 'z')
|
|
{
|
|
*q++ = c - 'a' + 1;
|
|
p++;
|
|
}
|
|
else if (*p)
|
|
p++;
|
|
}
|
|
}
|
|
else
|
|
*q++ = *p++;
|
|
}
|
|
}
|
|
*q = 0;
|
|
return valcopy;
|
|
}
|
|
|
|
static char *
|
|
resolve_symlinks (const char *path)
|
|
{
|
|
char *buf, *buf2, *q, *r, c;
|
|
int len;
|
|
struct stat mybuf;
|
|
const char *p;
|
|
|
|
if (*path != PATH_SEP)
|
|
return NULL;
|
|
r = buf = g_malloc (MC_MAXPATHLEN);
|
|
buf2 = g_malloc (MC_MAXPATHLEN);
|
|
*r++ = PATH_SEP;
|
|
*r = 0;
|
|
p = path;
|
|
for (;;)
|
|
{
|
|
q = strchr (p + 1, PATH_SEP);
|
|
if (!q)
|
|
{
|
|
q = strchr (p + 1, 0);
|
|
if (q == p + 1)
|
|
break;
|
|
}
|
|
c = *q;
|
|
*q = 0;
|
|
if (mc_lstat (path, &mybuf) < 0)
|
|
{
|
|
g_free (buf);
|
|
g_free (buf2);
|
|
*q = c;
|
|
return NULL;
|
|
}
|
|
if (!S_ISLNK (mybuf.st_mode))
|
|
strcpy (r, p + 1);
|
|
else
|
|
{
|
|
len = mc_readlink (path, buf2, MC_MAXPATHLEN - 1);
|
|
if (len < 0)
|
|
{
|
|
g_free (buf);
|
|
g_free (buf2);
|
|
*q = c;
|
|
return NULL;
|
|
}
|
|
buf2[len] = 0;
|
|
if (*buf2 == PATH_SEP)
|
|
strcpy (buf, buf2);
|
|
else
|
|
strcpy (r, buf2);
|
|
}
|
|
canonicalize_pathname (buf);
|
|
r = strchr (buf, 0);
|
|
if (!*r || *(r - 1) != PATH_SEP)
|
|
{
|
|
*r++ = PATH_SEP;
|
|
*r = 0;
|
|
}
|
|
*q = c;
|
|
p = q;
|
|
if (!c)
|
|
break;
|
|
}
|
|
if (!*buf)
|
|
strcpy (buf, PATH_SEP_STR);
|
|
else if (*(r - 1) == PATH_SEP && r != buf + 1)
|
|
*(r - 1) = 0;
|
|
g_free (buf2);
|
|
return buf;
|
|
}
|
|
|
|
static gboolean
|
|
mc_util_write_backup_content (const char *from_file_name, const char *to_file_name)
|
|
{
|
|
FILE *backup_fd;
|
|
char *contents;
|
|
gsize length;
|
|
gboolean ret1 = TRUE;
|
|
|
|
if (!g_file_get_contents (from_file_name, &contents, &length, NULL))
|
|
return FALSE;
|
|
|
|
backup_fd = fopen (to_file_name, "w");
|
|
if (backup_fd == NULL)
|
|
{
|
|
g_free (contents);
|
|
return FALSE;
|
|
}
|
|
|
|
if (fwrite ((const void *) contents, length, 1, backup_fd) != length)
|
|
ret1 = FALSE;
|
|
{
|
|
int ret2;
|
|
ret2 = fflush (backup_fd);
|
|
ret2 = fclose (backup_fd);
|
|
}
|
|
g_free (contents);
|
|
return ret1;
|
|
}
|
|
|
|
/* Finds out a relative path from first to second, i.e. goes as many ..
|
|
* as needed up in first and then goes down using second */
|
|
char *
|
|
diff_two_paths (const char *first, const char *second)
|
|
{
|
|
char *p, *q, *r, *s, *buf = NULL;
|
|
int i, j, prevlen = -1, currlen;
|
|
char *my_first = NULL, *my_second = NULL;
|
|
|
|
my_first = resolve_symlinks (first);
|
|
if (my_first == NULL)
|
|
return NULL;
|
|
my_second = resolve_symlinks (second);
|
|
if (my_second == NULL)
|
|
{
|
|
g_free (my_first);
|
|
return NULL;
|
|
}
|
|
for (j = 0; j < 2; j++)
|
|
{
|
|
p = my_first;
|
|
q = my_second;
|
|
for (;;)
|
|
{
|
|
r = strchr (p, PATH_SEP);
|
|
s = strchr (q, PATH_SEP);
|
|
if (!r || !s)
|
|
break;
|
|
*r = 0;
|
|
*s = 0;
|
|
if (strcmp (p, q))
|
|
{
|
|
*r = PATH_SEP;
|
|
*s = PATH_SEP;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
*r = PATH_SEP;
|
|
*s = PATH_SEP;
|
|
}
|
|
p = r + 1;
|
|
q = s + 1;
|
|
}
|
|
p--;
|
|
for (i = 0; (p = strchr (p + 1, PATH_SEP)) != NULL; i++);
|
|
currlen = (i + 1) * 3 + strlen (q) + 1;
|
|
if (j)
|
|
{
|
|
if (currlen < prevlen)
|
|
g_free (buf);
|
|
else
|
|
{
|
|
g_free (my_first);
|
|
g_free (my_second);
|
|
return buf;
|
|
}
|
|
}
|
|
p = buf = g_malloc (currlen);
|
|
prevlen = currlen;
|
|
for (; i >= 0; i--, p += 3)
|
|
strcpy (p, "../");
|
|
strcpy (p, q);
|
|
}
|
|
g_free (my_first);
|
|
g_free (my_second);
|
|
return buf;
|
|
}
|
|
|
|
/* If filename is NULL, then we just append PATH_SEP to the dir */
|
|
char *
|
|
concat_dir_and_file (const char *dir, const char *file)
|
|
{
|
|
int i = strlen (dir);
|
|
|
|
if (dir[i - 1] == PATH_SEP)
|
|
return g_strconcat (dir, file, (char *) NULL);
|
|
else
|
|
return g_strconcat (dir, PATH_SEP_STR, file, (char *) NULL);
|
|
}
|
|
|
|
/* Append text to GList, remove all entries with the same text */
|
|
GList *
|
|
list_append_unique (GList * list, char *text)
|
|
{
|
|
GList *lc_link;
|
|
|
|
/*
|
|
* Go to the last position and traverse the list backwards
|
|
* starting from the second last entry to make sure that we
|
|
* are not removing the current link.
|
|
*/
|
|
list = g_list_append (list, text);
|
|
list = g_list_last (list);
|
|
lc_link = g_list_previous (list);
|
|
|
|
while (lc_link != NULL)
|
|
{
|
|
GList *newlink;
|
|
|
|
newlink = g_list_previous (lc_link);
|
|
if (strcmp ((char *) lc_link->data, text) == 0)
|
|
{
|
|
GList *tmp;
|
|
|
|
g_free (lc_link->data);
|
|
tmp = g_list_remove_link (list, lc_link);
|
|
g_list_free_1 (lc_link);
|
|
}
|
|
lc_link = newlink;
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
/* Following code heavily borrows from libiberty, mkstemps.c */
|
|
|
|
/* Number of attempts to create a temporary file */
|
|
#ifndef TMP_MAX
|
|
#define TMP_MAX 16384
|
|
#endif /* !TMP_MAX */
|
|
|
|
/*
|
|
* Arguments:
|
|
* pname (output) - pointer to the name of the temp file (needs g_free).
|
|
* NULL if the function fails.
|
|
* prefix - part of the filename before the random part.
|
|
* Prepend $TMPDIR or /tmp if there are no path separators.
|
|
* suffix - if not NULL, part of the filename after the random part.
|
|
*
|
|
* Result:
|
|
* handle of the open file or -1 if couldn't open any.
|
|
*/
|
|
int
|
|
mc_mkstemps (char **pname, const char *prefix, const char *suffix)
|
|
{
|
|
static const char letters[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
|
|
static unsigned long value;
|
|
struct timeval tv;
|
|
char *tmpbase;
|
|
char *tmpname;
|
|
char *XXXXXX;
|
|
int count;
|
|
|
|
if (strchr (prefix, PATH_SEP) == NULL)
|
|
{
|
|
/* Add prefix first to find the position of XXXXXX */
|
|
tmpbase = concat_dir_and_file (mc_tmpdir (), prefix);
|
|
}
|
|
else
|
|
{
|
|
tmpbase = g_strdup (prefix);
|
|
}
|
|
|
|
tmpname = g_strconcat (tmpbase, "XXXXXX", suffix, (char *) NULL);
|
|
*pname = tmpname;
|
|
XXXXXX = &tmpname[strlen (tmpbase)];
|
|
g_free (tmpbase);
|
|
|
|
/* Get some more or less random data. */
|
|
gettimeofday (&tv, NULL);
|
|
value += (tv.tv_usec << 16) ^ tv.tv_sec ^ getpid ();
|
|
|
|
for (count = 0; count < TMP_MAX; ++count)
|
|
{
|
|
unsigned long v = value;
|
|
int fd;
|
|
|
|
/* Fill in the random bits. */
|
|
XXXXXX[0] = letters[v % 62];
|
|
v /= 62;
|
|
XXXXXX[1] = letters[v % 62];
|
|
v /= 62;
|
|
XXXXXX[2] = letters[v % 62];
|
|
v /= 62;
|
|
XXXXXX[3] = letters[v % 62];
|
|
v /= 62;
|
|
XXXXXX[4] = letters[v % 62];
|
|
v /= 62;
|
|
XXXXXX[5] = letters[v % 62];
|
|
|
|
fd = open (tmpname, O_RDWR | O_CREAT | O_TRUNC | O_EXCL, S_IRUSR | S_IWUSR);
|
|
if (fd >= 0)
|
|
{
|
|
/* Successfully created. */
|
|
return fd;
|
|
}
|
|
|
|
/* This is a random value. It is only necessary that the next
|
|
TMP_MAX values generated by adding 7777 to VALUE are different
|
|
with (module 2^32). */
|
|
value += 7777;
|
|
}
|
|
|
|
/* Unsuccessful. Free the filename. */
|
|
g_free (tmpname);
|
|
*pname = NULL;
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Read and restore position for the given filename.
|
|
* If there is no stored data, return line 1 and col 0.
|
|
*/
|
|
void
|
|
load_file_position (const char *filename, long *line, long *column, off_t * offset)
|
|
{
|
|
char *fn;
|
|
FILE *f;
|
|
char buf[MC_MAXPATHLEN + 20];
|
|
int len;
|
|
|
|
/* defaults */
|
|
*line = 1;
|
|
*column = 0;
|
|
*offset = 0;
|
|
|
|
/* open file with positions */
|
|
fn = g_build_filename (home_dir, MC_USERCONF_DIR, MC_FILEPOS_FILE, NULL);
|
|
f = fopen (fn, "r");
|
|
g_free (fn);
|
|
if (!f)
|
|
return;
|
|
|
|
len = strlen (filename);
|
|
|
|
while (fgets (buf, sizeof (buf), f))
|
|
{
|
|
const char *p;
|
|
gchar **pos_tokens;
|
|
|
|
/* check if the filename matches the beginning of string */
|
|
if (strncmp (buf, filename, len) != 0)
|
|
continue;
|
|
|
|
/* followed by single space */
|
|
if (buf[len] != ' ')
|
|
continue;
|
|
|
|
/* and string without spaces */
|
|
p = &buf[len + 1];
|
|
if (strchr (p, ' '))
|
|
continue;
|
|
|
|
pos_tokens = g_strsplit_set (p, ";", 3);
|
|
if (pos_tokens[0] != NULL)
|
|
{
|
|
*line = strtol (pos_tokens[0], NULL, 10);
|
|
if (pos_tokens[1] != NULL)
|
|
{
|
|
*column = strtol (pos_tokens[1], NULL, 10);
|
|
if (pos_tokens[2] != NULL)
|
|
*offset = strtoll (pos_tokens[2], NULL, 10);
|
|
else
|
|
*offset = 0;
|
|
}
|
|
else
|
|
{
|
|
*column = 0;
|
|
*offset = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*line = 1;
|
|
*column = 0;
|
|
*offset = 0;
|
|
}
|
|
g_strfreev (pos_tokens);
|
|
}
|
|
fclose (f);
|
|
}
|
|
|
|
/* Save position for the given file */
|
|
#define TMP_SUFFIX ".tmp"
|
|
void
|
|
save_file_position (const char *filename, long line, long column, off_t offset)
|
|
{
|
|
static int filepos_max_saved_entries = 0;
|
|
char *fn, *tmp_fn;
|
|
FILE *f, *tmp_f;
|
|
char buf[MC_MAXPATHLEN + 20];
|
|
int i = 1;
|
|
gsize len;
|
|
|
|
if (filepos_max_saved_entries == 0)
|
|
filepos_max_saved_entries =
|
|
mc_config_get_int (mc_main_config, CONFIG_APP_SECTION, "filepos_max_saved_entries",
|
|
1024);
|
|
|
|
fn = g_build_filename (home_dir, MC_USERCONF_DIR, MC_FILEPOS_FILE, NULL);
|
|
if (fn == NULL)
|
|
goto early_error;
|
|
|
|
len = strlen (filename);
|
|
|
|
mc_util_make_backup_if_possible (fn, TMP_SUFFIX);
|
|
|
|
/* open file */
|
|
f = fopen (fn, "w");
|
|
if (f == NULL)
|
|
goto open_target_error;
|
|
|
|
tmp_fn = g_strdup_printf ("%s" TMP_SUFFIX, fn);
|
|
tmp_f = fopen (tmp_fn, "r");
|
|
if (tmp_f == NULL)
|
|
goto open_source_error;
|
|
|
|
/* put the new record */
|
|
if (line != 1 || column != 0)
|
|
{
|
|
if (fprintf (f, "%s %ld;%ld;%llu\n", filename, line, column, (unsigned long long) offset) <
|
|
0)
|
|
goto write_position_error;
|
|
}
|
|
|
|
while (fgets (buf, sizeof (buf), tmp_f))
|
|
{
|
|
if (buf[len] == ' ' && strncmp (buf, filename, len) == 0 && !strchr (&buf[len + 1], ' '))
|
|
continue;
|
|
|
|
fprintf (f, "%s", buf);
|
|
if (++i > filepos_max_saved_entries)
|
|
break;
|
|
}
|
|
fclose (tmp_f);
|
|
g_free (tmp_fn);
|
|
fclose (f);
|
|
mc_util_unlink_backup_if_possible (fn, TMP_SUFFIX);
|
|
g_free (fn);
|
|
return;
|
|
|
|
write_position_error:
|
|
fclose (tmp_f);
|
|
open_source_error:
|
|
g_free (tmp_fn);
|
|
fclose (f);
|
|
mc_util_restore_from_backup_if_possible (fn, TMP_SUFFIX);
|
|
open_target_error:
|
|
g_free (fn);
|
|
early_error:
|
|
return;
|
|
}
|
|
|
|
#undef TMP_SUFFIX
|
|
extern const char *
|
|
cstrcasestr (const char *haystack, const char *needle)
|
|
{
|
|
char *nee = str_create_search_needle (needle, 0);
|
|
const char *result = str_search_first (haystack, nee, 0);
|
|
str_release_search_needle (nee, 0);
|
|
return result;
|
|
}
|
|
|
|
const char *
|
|
cstrstr (const char *haystack, const char *needle)
|
|
{
|
|
return strstr (haystack, needle);
|
|
}
|
|
|
|
extern char *
|
|
str_unconst (const char *s)
|
|
{
|
|
return (char *) s;
|
|
}
|
|
|
|
#define ASCII_A (0x40 + 1)
|
|
#define ASCII_Z (0x40 + 26)
|
|
#define ASCII_a (0x60 + 1)
|
|
#define ASCII_z (0x60 + 26)
|
|
|
|
extern int
|
|
ascii_alpha_to_cntrl (int ch)
|
|
{
|
|
if ((ch >= ASCII_A && ch <= ASCII_Z) || (ch >= ASCII_a && ch <= ASCII_z))
|
|
{
|
|
ch &= 0x1f;
|
|
}
|
|
return ch;
|
|
}
|
|
|
|
const char *
|
|
Q_ (const char *s)
|
|
{
|
|
const char *result, *sep;
|
|
|
|
result = _(s);
|
|
sep = strchr (result, '|');
|
|
return (sep != NULL) ? sep + 1 : result;
|
|
}
|
|
|
|
|
|
gboolean
|
|
mc_util_make_backup_if_possible (const char *file_name, const char *backup_suffix)
|
|
{
|
|
struct stat stat_buf;
|
|
char *backup_path;
|
|
gboolean ret;
|
|
if (!exist_file (file_name))
|
|
return FALSE;
|
|
|
|
backup_path = g_strdup_printf ("%s%s", file_name, backup_suffix);
|
|
|
|
if (backup_path == NULL)
|
|
return FALSE;
|
|
|
|
ret = mc_util_write_backup_content (file_name, backup_path);
|
|
|
|
if (ret)
|
|
{
|
|
/* Backup file will have same ownership with main file. */
|
|
if (stat (file_name, &stat_buf) == 0)
|
|
chmod (backup_path, stat_buf.st_mode);
|
|
else
|
|
chmod (backup_path, S_IRUSR | S_IWUSR);
|
|
}
|
|
|
|
g_free (backup_path);
|
|
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
mc_util_restore_from_backup_if_possible (const char *file_name, const char *backup_suffix)
|
|
{
|
|
gboolean ret;
|
|
char *backup_path;
|
|
|
|
backup_path = g_strdup_printf ("%s%s", file_name, backup_suffix);
|
|
if (backup_path == NULL)
|
|
return FALSE;
|
|
|
|
ret = mc_util_write_backup_content (backup_path, file_name);
|
|
g_free (backup_path);
|
|
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
mc_util_unlink_backup_if_possible (const char *file_name, const char *backup_suffix)
|
|
{
|
|
char *backup_path;
|
|
|
|
backup_path = g_strdup_printf ("%s%s", file_name, backup_suffix);
|
|
if (backup_path == NULL)
|
|
return FALSE;
|
|
|
|
if (exist_file (backup_path))
|
|
mc_unlink (backup_path);
|
|
|
|
g_free (backup_path);
|
|
return TRUE;
|
|
}
|
|
|
|
/* partly taken from dcigettext.c, returns "" for default locale */
|
|
/* value should be freed by calling function g_free() */
|
|
char *
|
|
guess_message_value (void)
|
|
{
|
|
static const char *const var[] = {
|
|
/* Setting of LC_ALL overwrites all other. */
|
|
/* Do not use LANGUAGE for check user locale and drowing hints */
|
|
"LC_ALL",
|
|
/* Next comes the name of the desired category. */
|
|
"LC_MESSAGES",
|
|
/* Last possibility is the LANG environment variable. */
|
|
"LANG",
|
|
/* NULL exit loops */
|
|
NULL
|
|
};
|
|
|
|
unsigned i = 0;
|
|
const char *locale = NULL;
|
|
|
|
while (var[i] != NULL)
|
|
{
|
|
locale = getenv (var[i]);
|
|
if (locale != NULL && locale[0] != '\0')
|
|
break;
|
|
i++;
|
|
}
|
|
|
|
if (locale == NULL)
|
|
locale = "";
|
|
|
|
return g_strdup (locale);
|
|
}
|