2 Copyright (C) 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
4 Written 1994, 1995, 1996 by:
5 Miguel de Icaza, Janne Kukonlehto, Dugan Porter,
6 Jakub Jelinek, Mauricio Plaza.
8 The file_date routine is mostly from GNU's fileutils package,
9 written by Richard Stallman and David MacKenzie.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
26 * \brief Source: various utilities
39 #include <sys/types.h>
43 #include "lib/global.h"
44 #include "lib/tty/win.h" /* xterm_flag */
45 #include "lib/mcconfig.h"
46 #include "lib/fileloc.h"
47 #include "lib/vfs/mc-vfs/vfs.h"
48 #include "lib/strutil.h"
51 #include "src/filemanager/filegui.h"
52 #include "src/filemanager/file.h" /* copy_file_file() */
53 #include "src/main.h" /* home_dir, eight_bit_clean */
55 /*** global variables ****************************************************************************/
57 /*** file scope macro definitions ****************************************************************/
59 #define ismode(n,m) ((n & m) == m)
61 /* Number of attempts to create a temporary file */
66 #define TMP_SUFFIX ".tmp"
68 #define ASCII_A (0x40 + 1)
69 #define ASCII_Z (0x40 + 26)
70 #define ASCII_a (0x60 + 1)
71 #define ASCII_z (0x60 + 26)
73 /*** file scope type declarations ****************************************************************/
75 /*** file scope variables ************************************************************************/
77 /*** file scope functions ************************************************************************/
78 /* --------------------------------------------------------------------------------------------- */
81 is_7bit_printable (unsigned char c
)
83 return (c
> 31 && c
< 127);
86 /* --------------------------------------------------------------------------------------------- */
89 is_iso_printable (unsigned char c
)
91 return ((c
> 31 && c
< 127) || c
>= 160);
94 /* --------------------------------------------------------------------------------------------- */
97 is_8bit_printable (unsigned char c
)
99 /* "Full 8 bits output" doesn't work on xterm */
101 return is_iso_printable (c
);
103 return (c
> 31 && c
!= 127 && c
!= 155);
106 /* --------------------------------------------------------------------------------------------- */
109 resolve_symlinks (const char *path
)
111 char *buf
, *buf2
, *q
, *r
, c
;
116 if (*path
!= PATH_SEP
)
118 r
= buf
= g_malloc (MC_MAXPATHLEN
);
119 buf2
= g_malloc (MC_MAXPATHLEN
);
125 q
= strchr (p
+ 1, PATH_SEP
);
128 q
= strchr (p
+ 1, 0);
134 if (mc_lstat (path
, &mybuf
) < 0)
141 if (!S_ISLNK (mybuf
.st_mode
))
145 len
= mc_readlink (path
, buf2
, MC_MAXPATHLEN
- 1);
154 if (*buf2
== PATH_SEP
)
159 canonicalize_pathname (buf
);
161 if (!*r
|| *(r
- 1) != PATH_SEP
)
172 strcpy (buf
, PATH_SEP_STR
);
173 else if (*(r
- 1) == PATH_SEP
&& r
!= buf
+ 1)
179 /* --------------------------------------------------------------------------------------------- */
182 mc_util_write_backup_content (const char *from_file_name
, const char *to_file_name
)
187 gboolean ret1
= TRUE
;
189 if (!g_file_get_contents (from_file_name
, &contents
, &length
, NULL
))
192 backup_fd
= fopen (to_file_name
, "w");
193 if (backup_fd
== NULL
)
199 if (fwrite ((const void *) contents
, 1, length
, backup_fd
) != length
)
203 ret2
= fflush (backup_fd
);
204 ret2
= fclose (backup_fd
);
210 /* --------------------------------------------------------------------------------------------- */
211 /*** public functions ****************************************************************************/
212 /* --------------------------------------------------------------------------------------------- */
220 /* "Display bits" is ignored, since the user controls the output
221 by setting the output codepage */
222 return is_8bit_printable (c
);
224 if (!eight_bit_clean
)
225 return is_7bit_printable (c
);
229 return is_8bit_printable (c
);
232 return is_iso_printable (c
);
233 #endif /* !HAVE_CHARSET */
236 /* --------------------------------------------------------------------------------------------- */
238 * Quote the filename for the purpose of inserting it into the command
239 * line. If quote_percent is 1, replace "%" with "%%" - the percent is
240 * processed by the mc command line.
243 name_quote (const char *s
, int quote_percent
)
247 d
= ret
= g_malloc (strlen (s
) * 2 + 2 + 1);
299 /* --------------------------------------------------------------------------------------------- */
302 fake_name_quote (const char *s
, int quote_percent
)
304 (void) quote_percent
;
308 /* --------------------------------------------------------------------------------------------- */
310 * path_trunc() is the same as str_trunc() but
311 * it deletes possible password from path for security
316 path_trunc (const char *path
, size_t trunc_len
)
318 char *secure_path
= strip_password (g_strdup (path
), 1);
320 const char *ret
= str_trunc (secure_path
, trunc_len
);
321 g_free (secure_path
);
326 /* --------------------------------------------------------------------------------------------- */
329 size_trunc (uintmax_t size
, gboolean use_si
)
331 static char x
[BUF_TINY
];
332 uintmax_t divisor
= 1;
333 const char *xtra
= "";
335 if (size
> 999999999UL)
337 divisor
= use_si
? 1000 : 1024;
338 xtra
= use_si
? "k" : "K";
339 if (size
/ divisor
> 999999999UL)
341 divisor
= use_si
? (1000 * 1000) : (1024 * 1024);
342 xtra
= use_si
? "m" : "M";
345 g_snprintf (x
, sizeof (x
), "%.0f%s", 1.0 * size
/ divisor
, xtra
);
349 /* --------------------------------------------------------------------------------------------- */
352 size_trunc_sep (uintmax_t size
, gboolean use_si
)
359 p
= y
= size_trunc (size
, use_si
);
361 d
= x
+ sizeof (x
) - 1;
363 while (p
>= y
&& isalpha ((unsigned char) *p
))
365 for (count
= 0; p
>= y
; count
++)
380 /* --------------------------------------------------------------------------------------------- */
382 * Print file SIZE to BUFFER, but don't exceed LEN characters,
383 * not including trailing 0. BUFFER should be at least LEN+1 long.
384 * This function is called for every file on panels, so avoid
385 * floating point by any means.
387 * Units: size units (filesystem sizes are 1K blocks)
388 * 0=bytes, 1=Kbytes, 2=Mbytes, etc.
392 size_trunc_len (char *buffer
, unsigned int len
, uintmax_t size
, int units
, gboolean use_si
)
394 /* Avoid taking power for every file. */
395 static const uintmax_t power10
[] =
397 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000
399 static const char *const suffix
[] = { "", "K", "M", "G", "T", "P", "E", "Z", "Y", NULL
};
400 static const char *const suffix_lc
[] = { "", "k", "m", "g", "t", "p", "e", "z", "y", NULL
};
408 * recalculate from 1024 base to 1000 base if units>0
409 * We can't just multiply by 1024 - that might cause overflow
410 * if off_t type is too small
413 for (j
= 0; j
< units
; j
++)
415 size_remain
= ((size
% 125) * 1024) / 1000; /* size mod 125, recalculated */
416 size
= size
/ 125; /* 128/125 = 1024/1000 */
417 size
= size
* 128; /* This will convert size from multiple of 1024 to multiple of 1000 */
418 size
+= size_remain
; /* Re-add remainder lost by division/multiplication */
421 for (j
= units
; suffix
[j
] != NULL
; j
++)
427 /* Empty files will print "0" even with minimal width. */
428 g_snprintf (buffer
, len
+ 1, "0");
432 /* Use "~K" or just "K" if len is 1. Use "B" for bytes. */
433 g_snprintf (buffer
, len
+ 1, (len
> 1) ? "~%s" : "%s",
434 (j
> 1) ? (use_si
? suffix_lc
[j
- 1] : suffix
[j
- 1]) : "B");
438 if (size
< power10
[len
- (j
> 0)])
440 g_snprintf (buffer
, len
+ 1, "%" PRIuMAX
"%s", size
, use_si
? suffix_lc
[j
] : suffix
[j
]);
444 /* Powers of 1000 or 1024, with rounding. */
446 size
= (size
+ 500) / 1000;
448 size
= (size
+ 512) >> 10;
452 /* --------------------------------------------------------------------------------------------- */
455 string_perm (mode_t mode_bits
)
457 static char mode
[11];
459 strcpy (mode
, "----------");
460 if (S_ISDIR (mode_bits
))
462 if (S_ISCHR (mode_bits
))
464 if (S_ISBLK (mode_bits
))
466 if (S_ISLNK (mode_bits
))
468 if (S_ISFIFO (mode_bits
))
470 if (S_ISNAM (mode_bits
))
472 if (S_ISSOCK (mode_bits
))
474 if (S_ISDOOR (mode_bits
))
476 if (ismode (mode_bits
, S_IXOTH
))
478 if (ismode (mode_bits
, S_IWOTH
))
480 if (ismode (mode_bits
, S_IROTH
))
482 if (ismode (mode_bits
, S_IXGRP
))
484 if (ismode (mode_bits
, S_IWGRP
))
486 if (ismode (mode_bits
, S_IRGRP
))
488 if (ismode (mode_bits
, S_IXUSR
))
490 if (ismode (mode_bits
, S_IWUSR
))
492 if (ismode (mode_bits
, S_IRUSR
))
495 if (ismode (mode_bits
, S_ISUID
))
496 mode
[3] = (mode
[3] == 'x') ? 's' : 'S';
499 if (ismode (mode_bits
, S_ISGID
))
500 mode
[6] = (mode
[6] == 'x') ? 's' : 'S';
503 if (ismode (mode_bits
, S_ISVTX
))
504 mode
[9] = (mode
[9] == 'x') ? 't' : 'T';
509 /* --------------------------------------------------------------------------------------------- */
511 * p: string which might contain an url with a password (this parameter is
512 * modified in place).
513 * has_prefix = 0: The first parameter is an url without a prefix
514 * (user[:pass]@]machine[:port][remote-dir). Delete
516 * has_prefix = 1: Search p for known url prefixes. If found delete
517 * the password from the url.
518 * Caveat: only the first url is found
522 strip_password (char *p
, int has_prefix
)
541 char *at
, *inner_colon
, *dir
;
545 for (i
= 0; i
< sizeof (prefixes
) / sizeof (prefixes
[0]); i
++)
551 q
= strstr (p
, prefixes
[i
].name
);
555 p
= q
+ prefixes
[i
].len
;
558 dir
= strchr (p
, PATH_SEP
);
562 /* search for any possible user */
563 at
= strrchr (p
, '@');
568 /* We have a username */
571 inner_colon
= memchr (p
, ':', at
- p
);
573 memmove (inner_colon
, at
, strlen (at
) + 1);
580 /* --------------------------------------------------------------------------------------------- */
583 strip_home_and_password (const char *dir
)
586 static char newdir
[MC_MAXPATHLEN
];
588 len
= strlen (home_dir
);
589 if (home_dir
!= NULL
&& strncmp (dir
, home_dir
, len
) == 0 &&
590 (dir
[len
] == PATH_SEP
|| dir
[len
] == '\0'))
593 g_strlcpy (&newdir
[1], &dir
[len
], sizeof (newdir
) - 1);
597 /* We do not strip homes in /#ftp tree, I do not like ~'s there
599 g_strlcpy (newdir
, dir
, sizeof (newdir
));
600 strip_password (newdir
, 1);
604 /* --------------------------------------------------------------------------------------------- */
607 extension (const char *filename
)
609 const char *d
= strrchr (filename
, '.');
610 return (d
!= NULL
) ? d
+ 1 : "";
613 /* --------------------------------------------------------------------------------------------- */
616 check_for_default (const char *default_file
, const char *file
)
618 if (!exist_file (file
))
621 FileOpTotalContext
*tctx
;
623 if (!exist_file (default_file
))
626 ctx
= file_op_context_new (OP_COPY
);
627 tctx
= file_op_total_context_new ();
628 file_op_context_create_ui (ctx
, 0, FALSE
);
629 copy_file_file (tctx
, ctx
, default_file
, file
);
630 file_op_total_context_destroy (tctx
);
631 file_op_context_destroy (ctx
);
637 /* --------------------------------------------------------------------------------------------- */
640 load_mc_home_file (const char *from
, const char *filename
, char **allocated_filename
)
642 char *hintfile_base
, *hintfile
;
646 hintfile_base
= g_build_filename (from
, filename
, (char *) NULL
);
647 lang
= guess_message_value ();
649 hintfile
= g_strconcat (hintfile_base
, ".", lang
, (char *) NULL
);
650 if (!g_file_get_contents (hintfile
, &data
, NULL
, NULL
))
652 /* Fall back to the two-letter language code */
653 if (lang
[0] != '\0' && lang
[1] != '\0')
656 hintfile
= g_strconcat (hintfile_base
, ".", lang
, (char *) NULL
);
657 if (!g_file_get_contents (hintfile
, &data
, NULL
, NULL
))
660 hintfile
= hintfile_base
;
661 g_file_get_contents (hintfile_base
, &data
, NULL
, NULL
);
667 if (hintfile
!= hintfile_base
)
668 g_free (hintfile_base
);
670 if (allocated_filename
!= NULL
)
671 *allocated_filename
= hintfile
;
678 /* --------------------------------------------------------------------------------------------- */
681 extract_line (const char *s
, const char *top
)
683 static char tmp_line
[BUF_MEDIUM
];
686 while (*s
&& *s
!= '\n' && (size_t) (t
- tmp_line
) < sizeof (tmp_line
) - 1 && s
< top
)
692 /* --------------------------------------------------------------------------------------------- */
694 * The basename routine
698 x_basename (const char *s
)
701 return ((where
= strrchr (s
, PATH_SEP
))) ? where
+ 1 : s
;
704 /* --------------------------------------------------------------------------------------------- */
707 unix_error_string (int error_num
)
709 static char buffer
[BUF_LARGE
];
710 gchar
*strerror_currentlocale
;
712 strerror_currentlocale
= g_locale_from_utf8 (g_strerror (error_num
), -1, NULL
, NULL
, NULL
);
713 g_snprintf (buffer
, sizeof (buffer
), "%s (%d)", strerror_currentlocale
, error_num
);
714 g_free (strerror_currentlocale
);
719 /* --------------------------------------------------------------------------------------------- */
722 skip_separators (const char *s
)
726 for (; *su
; str_cnext_char (&su
))
727 if (*su
!= ' ' && *su
!= '\t' && *su
!= ',')
733 /* --------------------------------------------------------------------------------------------- */
736 skip_numbers (const char *s
)
740 for (; *su
; str_cnext_char (&su
))
741 if (!str_isdigit (su
))
747 /* --------------------------------------------------------------------------------------------- */
749 * Remove all control sequences from the argument string. We define
750 * "control sequence", in a sort of pidgin BNF, as follows:
752 * control-seq = Esc non-'['
753 * | Esc '[' (0 or more digits or ';' or '?') (any other char)
755 * This scheme works for all the terminals described in my termcap /
756 * terminfo databases, except the Hewlett-Packard 70092 and some Wyse
757 * terminals. If I hear from a single person who uses such a terminal
758 * with MC, I'll be glad to add support for it. (Dugan)
759 * Non-printable characters are also removed.
763 strip_ctrl_codes (char *s
)
765 char *w
; /* Current position where the stripped data is written */
766 char *r
; /* Current position where the original data is read */
772 for (w
= s
, r
= s
; *r
;)
776 /* Skip the control sequence's arguments */ ;
777 /* '(' need to avoid strange 'B' letter in *Suse (if mc runs under root user) */
778 if (*(++r
) == '[' || *r
== '(')
780 /* strchr() matches trailing binary 0 */
781 while (*(++r
) && strchr ("0123456789;?", *r
));
786 * Skip xterm's OSC (Operating System Command)
787 * http://www.xfree86.org/current/ctlseqs.html
793 for (; *new_r
; ++new_r
)
803 if (*(new_r
+ 1) == '\\')
814 * Now we are at the last character of the sequence.
815 * Skip it unless it's binary 0.
822 n
= str_get_next_char (r
);
825 memmove (w
, r
, n
- r
);
834 /* --------------------------------------------------------------------------------------------- */
836 enum compression_type
837 get_compression_type (int fd
, const char *name
)
839 unsigned char magic
[16];
842 /* Read the magic signature */
843 if (mc_read (fd
, (char *) magic
, 4) != 4)
844 return COMPRESSION_NONE
;
846 /* GZIP_MAGIC and OLD_GZIP_MAGIC */
847 if (magic
[0] == 037 && (magic
[1] == 0213 || magic
[1] == 0236))
849 return COMPRESSION_GZIP
;
853 if (magic
[0] == 0120 && magic
[1] == 0113 && magic
[2] == 003 && magic
[3] == 004)
855 /* Read compression type */
856 mc_lseek (fd
, 8, SEEK_SET
);
857 if (mc_read (fd
, (char *) magic
, 2) != 2)
858 return COMPRESSION_NONE
;
860 /* Gzip can handle only deflated (8) or stored (0) files */
861 if ((magic
[0] != 8 && magic
[0] != 0) || magic
[1] != 0)
862 return COMPRESSION_NONE
;
864 /* Compatible with gzip */
865 return COMPRESSION_GZIP
;
868 /* PACK_MAGIC and LZH_MAGIC and compress magic */
869 if (magic
[0] == 037 && (magic
[1] == 036 || magic
[1] == 0240 || magic
[1] == 0235))
871 /* Compatible with gzip */
872 return COMPRESSION_GZIP
;
875 /* BZIP and BZIP2 files */
876 if ((magic
[0] == 'B') && (magic
[1] == 'Z') && (magic
[3] >= '1') && (magic
[3] <= '9'))
881 return COMPRESSION_BZIP
;
883 return COMPRESSION_BZIP2
;
887 /* Support for LZMA (only utils format with magic in header).
888 * This is the default format of LZMA utils 4.32.1 and later. */
890 if (mc_read (fd
, (char *) magic
+ 4, 2) != 2)
891 return COMPRESSION_NONE
;
893 /* LZMA utils format */
896 && magic
[2] == 'Z' && magic
[3] == 'M' && magic
[4] == 'A' && magic
[5] == 0x00)
897 return COMPRESSION_LZMA
;
899 /* XZ compression magic */
902 && magic
[2] == 0x7A && magic
[3] == 0x58 && magic
[4] == 0x5A && magic
[5] == 0x00)
903 return COMPRESSION_XZ
;
905 str_len
= strlen (name
);
906 /* HACK: we must belive to extention of LZMA file :) ... */
907 if ((str_len
> 5 && strcmp (&name
[str_len
- 5], ".lzma") == 0) ||
908 (str_len
> 4 && strcmp (&name
[str_len
- 4], ".tlz") == 0))
909 return COMPRESSION_LZMA
;
911 return COMPRESSION_NONE
;
914 /* --------------------------------------------------------------------------------------------- */
917 decompress_extension (int type
)
921 case COMPRESSION_GZIP
:
923 case COMPRESSION_BZIP
:
925 case COMPRESSION_BZIP2
:
927 case COMPRESSION_LZMA
:
932 /* Should never reach this place */
933 fprintf (stderr
, "Fatal: decompress_extension called with an unknown argument\n");
937 /* --------------------------------------------------------------------------------------------- */
940 wipe_password (char *passwd
)
951 /* --------------------------------------------------------------------------------------------- */
953 * Convert "\E" -> esc character and ^x to control-x key and ^^ to ^ key
954 * @returns a newly allocated string
958 convert_controls (const char *p
)
960 char *valcopy
= g_strdup (p
);
963 /* Parse the escape special character */
964 for (q
= valcopy
; *p
;)
969 if ((*p
== 'e') || (*p
== 'E'))
984 char c
= (*p
| 0x20);
985 if (c
>= 'a' && c
<= 'z')
1002 /* --------------------------------------------------------------------------------------------- */
1004 * Finds out a relative path from first to second, i.e. goes as many ..
1005 * as needed up in first and then goes down using second
1009 diff_two_paths (const char *first
, const char *second
)
1011 char *p
, *q
, *r
, *s
, *buf
= NULL
;
1012 int i
, j
, prevlen
= -1, currlen
;
1013 char *my_first
= NULL
, *my_second
= NULL
;
1015 my_first
= resolve_symlinks (first
);
1016 if (my_first
== NULL
)
1018 my_second
= resolve_symlinks (second
);
1019 if (my_second
== NULL
)
1024 for (j
= 0; j
< 2; j
++)
1030 r
= strchr (p
, PATH_SEP
);
1031 s
= strchr (q
, PATH_SEP
);
1051 for (i
= 0; (p
= strchr (p
+ 1, PATH_SEP
)) != NULL
; i
++);
1052 currlen
= (i
+ 1) * 3 + strlen (q
) + 1;
1055 if (currlen
< prevlen
)
1064 p
= buf
= g_malloc (currlen
);
1066 for (; i
>= 0; i
--, p
+= 3)
1075 /* --------------------------------------------------------------------------------------------- */
1077 * If filename is NULL, then we just append PATH_SEP to the dir
1081 concat_dir_and_file (const char *dir
, const char *file
)
1083 int i
= strlen (dir
);
1085 if (dir
[i
- 1] == PATH_SEP
)
1086 return g_strconcat (dir
, file
, (char *) NULL
);
1088 return g_strconcat (dir
, PATH_SEP_STR
, file
, (char *) NULL
);
1091 /* --------------------------------------------------------------------------------------------- */
1093 * Append text to GList, remove all entries with the same text
1097 list_append_unique (GList
* list
, char *text
)
1102 * Go to the last position and traverse the list backwards
1103 * starting from the second last entry to make sure that we
1104 * are not removing the current link.
1106 list
= g_list_append (list
, text
);
1107 list
= g_list_last (list
);
1108 lc_link
= g_list_previous (list
);
1110 while (lc_link
!= NULL
)
1114 newlink
= g_list_previous (lc_link
);
1115 if (strcmp ((char *) lc_link
->data
, text
) == 0)
1119 g_free (lc_link
->data
);
1120 tmp
= g_list_remove_link (list
, lc_link
);
1121 g_list_free_1 (lc_link
);
1129 /* --------------------------------------------------------------------------------------------- */
1130 /* Following code heavily borrows from libiberty, mkstemps.c */
1133 * pname (output) - pointer to the name of the temp file (needs g_free).
1134 * NULL if the function fails.
1135 * prefix - part of the filename before the random part.
1136 * Prepend $TMPDIR or /tmp if there are no path separators.
1137 * suffix - if not NULL, part of the filename after the random part.
1140 * handle of the open file or -1 if couldn't open any.
1144 mc_mkstemps (char **pname
, const char *prefix
, const char *suffix
)
1146 static const char letters
[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
1147 static unsigned long value
;
1154 if (strchr (prefix
, PATH_SEP
) == NULL
)
1156 /* Add prefix first to find the position of XXXXXX */
1157 tmpbase
= concat_dir_and_file (mc_tmpdir (), prefix
);
1161 tmpbase
= g_strdup (prefix
);
1164 tmpname
= g_strconcat (tmpbase
, "XXXXXX", suffix
, (char *) NULL
);
1166 XXXXXX
= &tmpname
[strlen (tmpbase
)];
1169 /* Get some more or less random data. */
1170 gettimeofday (&tv
, NULL
);
1171 value
+= (tv
.tv_usec
<< 16) ^ tv
.tv_sec
^ getpid ();
1173 for (count
= 0; count
< TMP_MAX
; ++count
)
1175 unsigned long v
= value
;
1178 /* Fill in the random bits. */
1179 XXXXXX
[0] = letters
[v
% 62];
1181 XXXXXX
[1] = letters
[v
% 62];
1183 XXXXXX
[2] = letters
[v
% 62];
1185 XXXXXX
[3] = letters
[v
% 62];
1187 XXXXXX
[4] = letters
[v
% 62];
1189 XXXXXX
[5] = letters
[v
% 62];
1191 fd
= open (tmpname
, O_RDWR
| O_CREAT
| O_TRUNC
| O_EXCL
, S_IRUSR
| S_IWUSR
);
1194 /* Successfully created. */
1198 /* This is a random value. It is only necessary that the next
1199 TMP_MAX values generated by adding 7777 to VALUE are different
1200 with (module 2^32). */
1204 /* Unsuccessful. Free the filename. */
1211 /* --------------------------------------------------------------------------------------------- */
1213 * Read and restore position for the given filename.
1214 * If there is no stored data, return line 1 and col 0.
1218 load_file_position (const char *filename
, long *line
, long *column
, off_t
* offset
,
1219 GArray
** bookmarks
)
1223 char buf
[MC_MAXPATHLEN
+ 100];
1224 const size_t len
= strlen (filename
);
1231 /* open file with positions */
1232 fn
= g_build_filename (home_dir
, MC_USERCONF_DIR
, MC_FILEPOS_FILE
, NULL
);
1233 f
= fopen (fn
, "r");
1238 /* prepare array for serialized bookmarks */
1239 *bookmarks
= g_array_sized_new (FALSE
, FALSE
, sizeof (size_t), MAX_SAVED_BOOKMARKS
);
1241 while (fgets (buf
, sizeof (buf
), f
) != NULL
)
1246 /* check if the filename matches the beginning of string */
1247 if (strncmp (buf
, filename
, len
) != 0)
1250 /* followed by single space */
1251 if (buf
[len
] != ' ')
1254 /* and string without spaces */
1256 if (strchr (p
, ' ') != NULL
)
1259 pos_tokens
= g_strsplit (p
, ";", 3 + MAX_SAVED_BOOKMARKS
);
1260 if (pos_tokens
[0] == NULL
)
1268 *line
= strtol (pos_tokens
[0], NULL
, 10);
1269 if (pos_tokens
[1] == NULL
)
1276 *column
= strtol (pos_tokens
[1], NULL
, 10);
1277 if (pos_tokens
[2] == NULL
)
1283 *offset
= strtoll (pos_tokens
[2], NULL
, 10);
1285 for (i
= 0; i
< MAX_SAVED_BOOKMARKS
&& pos_tokens
[3 + i
] != NULL
; i
++)
1289 val
= strtoul (pos_tokens
[3 + i
], NULL
, 10);
1290 g_array_append_val (*bookmarks
, val
);
1296 g_strfreev (pos_tokens
);
1302 /* --------------------------------------------------------------------------------------------- */
1304 * Save position for the given file
1308 save_file_position (const char *filename
, long line
, long column
, off_t offset
, GArray
* bookmarks
)
1310 static size_t filepos_max_saved_entries
= 0;
1313 char buf
[MC_MAXPATHLEN
+ 100];
1315 const size_t len
= strlen (filename
);
1316 gboolean src_error
= FALSE
;
1318 if (filepos_max_saved_entries
== 0)
1319 filepos_max_saved_entries
= mc_config_get_int (mc_main_config
, CONFIG_APP_SECTION
,
1320 "filepos_max_saved_entries", 1024);
1322 fn
= g_build_filename (home_dir
, MC_USERCONF_DIR
, MC_FILEPOS_FILE
, NULL
);
1326 mc_util_make_backup_if_possible (fn
, TMP_SUFFIX
);
1329 f
= fopen (fn
, "w");
1331 goto open_target_error
;
1333 tmp_fn
= g_strdup_printf ("%s" TMP_SUFFIX
, fn
);
1334 tmp_f
= fopen (tmp_fn
, "r");
1338 goto open_source_error
;
1341 /* put the new record */
1342 if (line
!= 1 || column
!= 0 || bookmarks
!= NULL
)
1344 if (fprintf (f
, "%s %ld;%ld;%" PRIuMAX
, filename
, line
, column
, (uintmax_t) offset
) < 0)
1345 goto write_position_error
;
1346 if (bookmarks
!= NULL
)
1347 for (i
= 0; i
< bookmarks
->len
&& i
< MAX_SAVED_BOOKMARKS
; i
++)
1348 if (fprintf (f
, ";%zu", g_array_index (bookmarks
, size_t, i
)) < 0)
1349 goto write_position_error
;
1351 if (fprintf (f
, "\n") < 0)
1352 goto write_position_error
;
1356 while (fgets (buf
, sizeof (buf
), tmp_f
) != NULL
)
1358 if (buf
[len
] == ' ' && strncmp (buf
, filename
, len
) == 0
1359 && strchr (&buf
[len
+ 1], ' ') == NULL
)
1362 fprintf (f
, "%s", buf
);
1363 if (++i
> filepos_max_saved_entries
)
1367 write_position_error
:
1373 mc_util_restore_from_backup_if_possible (fn
, TMP_SUFFIX
);
1375 mc_util_unlink_backup_if_possible (fn
, TMP_SUFFIX
);
1379 if (bookmarks
!= NULL
)
1380 g_array_free (bookmarks
, TRUE
);
1383 /* --------------------------------------------------------------------------------------------- */
1386 ascii_alpha_to_cntrl (int ch
)
1388 if ((ch
>= ASCII_A
&& ch
<= ASCII_Z
) || (ch
>= ASCII_a
&& ch
<= ASCII_z
))
1395 /* --------------------------------------------------------------------------------------------- */
1400 const char *result
, *sep
;
1403 sep
= strchr (result
, '|');
1404 return (sep
!= NULL
) ? sep
+ 1 : result
;
1407 /* --------------------------------------------------------------------------------------------- */
1410 mc_util_make_backup_if_possible (const char *file_name
, const char *backup_suffix
)
1412 struct stat stat_buf
;
1415 if (!exist_file (file_name
))
1418 backup_path
= g_strdup_printf ("%s%s", file_name
, backup_suffix
);
1420 if (backup_path
== NULL
)
1423 ret
= mc_util_write_backup_content (file_name
, backup_path
);
1427 /* Backup file will have same ownership with main file. */
1428 if (stat (file_name
, &stat_buf
) == 0)
1429 chmod (backup_path
, stat_buf
.st_mode
);
1431 chmod (backup_path
, S_IRUSR
| S_IWUSR
);
1434 g_free (backup_path
);
1439 /* --------------------------------------------------------------------------------------------- */
1442 mc_util_restore_from_backup_if_possible (const char *file_name
, const char *backup_suffix
)
1447 backup_path
= g_strdup_printf ("%s%s", file_name
, backup_suffix
);
1448 if (backup_path
== NULL
)
1451 ret
= mc_util_write_backup_content (backup_path
, file_name
);
1452 g_free (backup_path
);
1457 /* --------------------------------------------------------------------------------------------- */
1460 mc_util_unlink_backup_if_possible (const char *file_name
, const char *backup_suffix
)
1464 backup_path
= g_strdup_printf ("%s%s", file_name
, backup_suffix
);
1465 if (backup_path
== NULL
)
1468 if (exist_file (backup_path
))
1469 mc_unlink (backup_path
);
1471 g_free (backup_path
);
1475 /* --------------------------------------------------------------------------------------------- */
1477 * partly taken from dcigettext.c, returns "" for default locale
1478 * value should be freed by calling function g_free()
1482 guess_message_value (void)
1484 static const char *const var
[] = {
1485 /* Setting of LC_ALL overwrites all other. */
1486 /* Do not use LANGUAGE for check user locale and drowing hints */
1488 /* Next comes the name of the desired category. */
1490 /* Last possibility is the LANG environment variable. */
1492 /* NULL exit loops */
1497 const char *locale
= NULL
;
1499 while (var
[i
] != NULL
)
1501 locale
= getenv (var
[i
]);
1502 if (locale
!= NULL
&& locale
[0] != '\0')
1510 return g_strdup (locale
);
1513 /* --------------------------------------------------------------------------------------------- */