4 Copyright (C) 1994-2015
5 Free Software Foundation, Inc.
8 Miguel de Icaza, 1994, 1995, 1996
9 Janne Kukonlehto, 1994, 1995, 1996
10 Dugan Porter, 1994, 1995, 1996
11 Jakub Jelinek, 1994, 1995, 1996
12 Mauricio Plaza, 1994, 1995, 1996
13 Slava Zanko <slavazanko@gmail.com>, 2013
15 This file is part of the Midnight Commander.
17 The Midnight Commander is free software: you can redistribute it
18 and/or modify it under the terms of the GNU General Public License as
19 published by the Free Software Foundation, either version 3 of the License,
20 or (at your option) any later version.
22 The Midnight Commander is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
27 You should have received a copy of the GNU General Public License
28 along with this program. If not, see <http://www.gnu.org/licenses/>.
32 * \brief Source: various utilities
44 #include <sys/types.h>
48 #include "lib/global.h"
49 #include "lib/mcconfig.h"
50 #include "lib/fileloc.h"
51 #include "lib/vfs/vfs.h"
52 #include "lib/strutil.h"
54 #include "lib/timer.h"
56 /*** global variables ****************************************************************************/
58 /*** file scope macro definitions ****************************************************************/
60 #define ismode(n,m) ((n & m) == m)
62 /* Number of attempts to create a temporary file */
67 #define TMP_SUFFIX ".tmp"
69 #define ASCII_A (0x40 + 1)
70 #define ASCII_Z (0x40 + 26)
71 #define ASCII_a (0x60 + 1)
72 #define ASCII_z (0x60 + 26)
74 /*** file scope type declarations ****************************************************************/
76 /*** file scope variables ************************************************************************/
78 /*** file scope functions ************************************************************************/
79 /* --------------------------------------------------------------------------------------------- */
83 is_7bit_printable (unsigned char c
)
85 return (c
> 31 && c
< 127);
89 /* --------------------------------------------------------------------------------------------- */
92 is_iso_printable (unsigned char c
)
94 return ((c
> 31 && c
< 127) || c
>= 160);
97 /* --------------------------------------------------------------------------------------------- */
100 is_8bit_printable (unsigned char c
)
102 /* "Full 8 bits output" doesn't work on xterm */
103 if (mc_global
.tty
.xterm_flag
)
104 return is_iso_printable (c
);
106 return (c
> 31 && c
!= 127 && c
!= 155);
109 /* --------------------------------------------------------------------------------------------- */
112 resolve_symlinks (const vfs_path_t
* vpath
)
115 char *buf
, *buf2
, *q
, *r
, c
;
121 p
= p2
= g_strdup (vfs_path_as_str (vpath
));
122 r
= buf
= g_malloc (MC_MAXPATHLEN
);
123 buf2
= g_malloc (MC_MAXPATHLEN
);
129 q
= strchr (p
+ 1, PATH_SEP
);
132 q
= strchr (p
+ 1, 0);
138 if (mc_lstat (vpath
, &mybuf
) < 0)
143 if (!S_ISLNK (mybuf
.st_mode
))
149 len
= mc_readlink (vpath
, buf2
, MC_MAXPATHLEN
- 1);
156 if (IS_PATH_SEP (*buf2
))
161 canonicalize_pathname (buf
);
163 if (*r
== '\0' || !IS_PATH_SEP (r
[-1]))
164 /* FIXME: this condition is always true because r points to the EOL */
175 strcpy (buf
, PATH_SEP_STR
);
176 else if (IS_PATH_SEP (r
[-1]) && r
!= buf
+ 1)
185 /* --------------------------------------------------------------------------------------------- */
188 mc_util_write_backup_content (const char *from_file_name
, const char *to_file_name
)
193 gboolean ret1
= TRUE
;
195 if (!g_file_get_contents (from_file_name
, &contents
, &length
, NULL
))
198 backup_fd
= fopen (to_file_name
, "w");
199 if (backup_fd
== NULL
)
205 if (fwrite ((const void *) contents
, 1, length
, backup_fd
) != length
)
210 /* cppcheck-suppress redundantAssignment */
211 ret2
= fflush (backup_fd
);
212 /* cppcheck-suppress redundantAssignment */
213 ret2
= fclose (backup_fd
);
220 /* --------------------------------------------------------------------------------------------- */
221 /*** public functions ****************************************************************************/
222 /* --------------------------------------------------------------------------------------------- */
230 /* "Display bits" is ignored, since the user controls the output
231 by setting the output codepage */
232 return is_8bit_printable (c
);
234 if (!mc_global
.eight_bit_clean
)
235 return is_7bit_printable (c
);
237 if (mc_global
.full_eight_bits
)
239 return is_8bit_printable (c
);
242 return is_iso_printable (c
);
243 #endif /* !HAVE_CHARSET */
246 /* --------------------------------------------------------------------------------------------- */
248 * Quote the filename for the purpose of inserting it into the command
249 * line. If quote_percent is TRUE, replace "%" with "%%" - the percent is
250 * processed by the mc command line.
253 name_quote (const char *s
, gboolean quote_percent
)
257 ret
= g_string_sized_new (64);
260 g_string_append (ret
, "." PATH_SEP_STR
);
262 for (; *s
!= '\0'; s
++)
268 g_string_append_c (ret
, '%');
293 g_string_append_c (ret
, '\\');
298 g_string_append_c (ret
, '\\');
303 g_string_append_c (ret
, *s
);
306 return g_string_free (ret
, FALSE
);
309 /* --------------------------------------------------------------------------------------------- */
312 fake_name_quote (const char *s
, gboolean quote_percent
)
314 (void) quote_percent
;
318 /* --------------------------------------------------------------------------------------------- */
320 * path_trunc() is the same as str_trunc() but
321 * it deletes possible password from path for security
326 path_trunc (const char *path
, size_t trunc_len
)
332 vpath
= vfs_path_from_str (path
);
333 secure_path
= vfs_path_to_str_flags (vpath
, 0, VPF_STRIP_PASSWORD
);
334 vfs_path_free (vpath
);
336 ret
= str_trunc (secure_path
, trunc_len
);
337 g_free (secure_path
);
342 /* --------------------------------------------------------------------------------------------- */
345 size_trunc (uintmax_t size
, gboolean use_si
)
347 static char x
[BUF_TINY
];
348 uintmax_t divisor
= 1;
349 const char *xtra
= "";
351 if (size
> 999999999UL)
353 divisor
= use_si
? 1000 : 1024;
354 xtra
= use_si
? "k" : "K";
356 if (size
/ divisor
> 999999999UL)
358 divisor
= use_si
? (1000 * 1000) : (1024 * 1024);
359 xtra
= use_si
? "m" : "M";
361 if (size
/ divisor
> 999999999UL)
363 divisor
= use_si
? (1000 * 1000 * 1000) : (1024 * 1024 * 1024);
364 xtra
= use_si
? "g" : "G";
368 g_snprintf (x
, sizeof (x
), "%.0f%s", 1.0 * size
/ divisor
, xtra
);
372 /* --------------------------------------------------------------------------------------------- */
375 size_trunc_sep (uintmax_t size
, gboolean use_si
)
382 p
= y
= size_trunc (size
, use_si
);
384 d
= x
+ sizeof (x
) - 1;
386 while (p
>= y
&& isalpha ((unsigned char) *p
))
388 for (count
= 0; p
>= y
; count
++)
403 /* --------------------------------------------------------------------------------------------- */
405 * Print file SIZE to BUFFER, but don't exceed LEN characters,
406 * not including trailing 0. BUFFER should be at least LEN+1 long.
407 * This function is called for every file on panels, so avoid
408 * floating point by any means.
410 * Units: size units (filesystem sizes are 1K blocks)
411 * 0=bytes, 1=Kbytes, 2=Mbytes, etc.
415 size_trunc_len (char *buffer
, unsigned int len
, uintmax_t size
, int units
, gboolean use_si
)
417 /* Avoid taking power for every file. */
419 static const uintmax_t power10
[] = {
420 /* we hope that size of uintmax_t is 4 bytes at least */
431 /* maximum value of uintmax_t (in case of 4 bytes) is
434 #if SIZEOF_UINTMAX_T == 8
442 10000000000000000ULL,
443 100000000000000000ULL,
444 1000000000000000000ULL,
445 10000000000000000000ULL
446 /* maximum value of uintmax_t (in case of 8 bytes) is
452 static const char *const suffix
[] = { "", "K", "M", "G", "T", "P", "E", "Z", "Y", NULL
};
453 static const char *const suffix_lc
[] = { "", "k", "m", "g", "t", "p", "e", "z", "y", NULL
};
455 const char *const *sfx
= use_si
? suffix_lc
: suffix
;
460 #if SIZEOF_UINTMAX_T == 8
461 /* 20 decimal digits are required to represent 8 bytes */
465 /* 10 decimal digits are required to represent 4 bytes */
471 * recalculate from 1024 base to 1000 base if units>0
472 * We can't just multiply by 1024 - that might cause overflow
473 * if uintmax_t type is too small
476 for (j
= 0; j
< units
; j
++)
478 uintmax_t size_remain
;
480 size_remain
= ((size
% 125) * 1024) / 1000; /* size mod 125, recalculated */
481 size
/= 125; /* 128/125 = 1024/1000 */
482 size
*= 128; /* This will convert size from multiple of 1024 to multiple of 1000 */
483 size
+= size_remain
; /* Re-add remainder lost by division/multiplication */
486 for (j
= units
; sfx
[j
] != NULL
; j
++)
492 /* Empty files will print "0" even with minimal width. */
493 g_snprintf (buffer
, len
+ 1, "%s", "0");
497 /* Use "~K" or just "K" if len is 1. Use "B" for bytes. */
498 g_snprintf (buffer
, len
+ 1, (len
> 1) ? "~%s" : "%s", (j
> 1) ? sfx
[j
- 1] : "B");
503 if (size
< power10
[len
- (j
> 0 ? 1 : 0)])
505 g_snprintf (buffer
, len
+ 1, "%" PRIuMAX
"%s", size
, sfx
[j
]);
509 /* Powers of 1000 or 1024, with rounding. */
511 size
= (size
+ 500) / 1000;
513 size
= (size
+ 512) >> 10;
517 /* --------------------------------------------------------------------------------------------- */
520 string_perm (mode_t mode_bits
)
522 static char mode
[11];
524 strcpy (mode
, "----------");
525 if (S_ISDIR (mode_bits
))
527 if (S_ISCHR (mode_bits
))
529 if (S_ISBLK (mode_bits
))
531 if (S_ISLNK (mode_bits
))
533 if (S_ISFIFO (mode_bits
))
535 if (S_ISNAM (mode_bits
))
537 if (S_ISSOCK (mode_bits
))
539 if (S_ISDOOR (mode_bits
))
541 if (ismode (mode_bits
, S_IXOTH
))
543 if (ismode (mode_bits
, S_IWOTH
))
545 if (ismode (mode_bits
, S_IROTH
))
547 if (ismode (mode_bits
, S_IXGRP
))
549 if (ismode (mode_bits
, S_IWGRP
))
551 if (ismode (mode_bits
, S_IRGRP
))
553 if (ismode (mode_bits
, S_IXUSR
))
555 if (ismode (mode_bits
, S_IWUSR
))
557 if (ismode (mode_bits
, S_IRUSR
))
560 if (ismode (mode_bits
, S_ISUID
))
561 mode
[3] = (mode
[3] == 'x') ? 's' : 'S';
564 if (ismode (mode_bits
, S_ISGID
))
565 mode
[6] = (mode
[6] == 'x') ? 's' : 'S';
568 if (ismode (mode_bits
, S_ISVTX
))
569 mode
[9] = (mode
[9] == 'x') ? 't' : 'T';
574 /* --------------------------------------------------------------------------------------------- */
577 extension (const char *filename
)
579 const char *d
= strrchr (filename
, '.');
580 return (d
!= NULL
) ? d
+ 1 : "";
583 /* --------------------------------------------------------------------------------------------- */
586 load_mc_home_file (const char *from
, const char *filename
, char **allocated_filename
)
588 char *hintfile_base
, *hintfile
;
592 hintfile_base
= g_build_filename (from
, filename
, (char *) NULL
);
593 lang
= guess_message_value ();
595 hintfile
= g_strconcat (hintfile_base
, ".", lang
, (char *) NULL
);
596 if (!g_file_get_contents (hintfile
, &data
, NULL
, NULL
))
598 /* Fall back to the two-letter language code */
599 if (lang
[0] != '\0' && lang
[1] != '\0')
602 hintfile
= g_strconcat (hintfile_base
, ".", lang
, (char *) NULL
);
603 if (!g_file_get_contents (hintfile
, &data
, NULL
, NULL
))
606 hintfile
= hintfile_base
;
607 g_file_get_contents (hintfile_base
, &data
, NULL
, NULL
);
613 if (hintfile
!= hintfile_base
)
614 g_free (hintfile_base
);
616 if (allocated_filename
!= NULL
)
617 *allocated_filename
= hintfile
;
624 /* --------------------------------------------------------------------------------------------- */
627 extract_line (const char *s
, const char *top
)
629 static char tmp_line
[BUF_MEDIUM
];
632 while (*s
&& *s
!= '\n' && (size_t) (t
- tmp_line
) < sizeof (tmp_line
) - 1 && s
< top
)
638 /* --------------------------------------------------------------------------------------------- */
640 * The basename routine
644 x_basename (const char *s
)
646 const char *url_delim
, *path_sep
;
648 url_delim
= g_strrstr (s
, VFS_PATH_URL_DELIMITER
);
649 path_sep
= strrchr (s
, PATH_SEP
);
651 if (path_sep
== NULL
)
654 if (url_delim
== NULL
655 || url_delim
< path_sep
- strlen (VFS_PATH_URL_DELIMITER
)
656 || url_delim
- s
+ strlen (VFS_PATH_URL_DELIMITER
) < strlen (s
))
658 /* avoid trailing PATH_SEP, if present */
659 if (!IS_PATH_SEP (s
[strlen (s
) - 1]))
660 return (path_sep
!= NULL
) ? path_sep
+ 1 : s
;
662 while (--path_sep
> s
&& !IS_PATH_SEP (*path_sep
))
664 return (path_sep
!= s
) ? path_sep
+ 1 : s
;
667 while (--url_delim
> s
&& !IS_PATH_SEP (*url_delim
))
669 while (--url_delim
> s
&& !IS_PATH_SEP (*url_delim
))
672 return (url_delim
== s
) ? s
: url_delim
+ 1;
675 /* --------------------------------------------------------------------------------------------- */
678 unix_error_string (int error_num
)
680 static char buffer
[BUF_LARGE
];
681 gchar
*strerror_currentlocale
;
683 strerror_currentlocale
= g_locale_from_utf8 (g_strerror (error_num
), -1, NULL
, NULL
, NULL
);
684 g_snprintf (buffer
, sizeof (buffer
), "%s (%d)", strerror_currentlocale
, error_num
);
685 g_free (strerror_currentlocale
);
690 /* --------------------------------------------------------------------------------------------- */
693 skip_separators (const char *s
)
697 for (; *su
; str_cnext_char (&su
))
698 if (*su
!= ' ' && *su
!= '\t' && *su
!= ',')
704 /* --------------------------------------------------------------------------------------------- */
707 skip_numbers (const char *s
)
711 for (; *su
; str_cnext_char (&su
))
712 if (!str_isdigit (su
))
718 /* --------------------------------------------------------------------------------------------- */
720 * Remove all control sequences from the argument string. We define
721 * "control sequence", in a sort of pidgin BNF, as follows:
723 * control-seq = Esc non-'['
724 * | Esc '[' (0 or more digits or ';' or ':' or '?') (any other char)
726 * The 256-color and true-color escape sequences should allow either ';' or ':' inside as separator,
727 * actually, ':' is the more correct according to ECMA-48.
728 * Some terminal emulators (e.g. xterm, gnome-terminal) support this.
730 * Non-printable characters are also removed.
734 strip_ctrl_codes (char *s
)
736 char *w
; /* Current position where the stripped data is written */
737 char *r
; /* Current position where the original data is read */
742 for (w
= s
, r
= s
; *r
!= '\0';)
746 /* Skip the control sequence's arguments */ ;
747 /* '(' need to avoid strange 'B' letter in *Suse (if mc runs under root user) */
748 if (*(++r
) == '[' || *r
== '(')
750 /* strchr() matches trailing binary 0 */
751 while (*(++r
) != '\0' && strchr ("0123456789;:?", *r
) != NULL
)
757 * Skip xterm's OSC (Operating System Command)
758 * http://www.xfree86.org/current/ctlseqs.html
764 for (; *new_r
!= '\0'; ++new_r
)
774 if (*(new_r
+ 1) == '\\')
788 * Now we are at the last character of the sequence.
789 * Skip it unless it's binary 0.
798 n
= str_get_next_char (r
);
801 memmove (w
, r
, n
- r
);
812 /* --------------------------------------------------------------------------------------------- */
814 enum compression_type
815 get_compression_type (int fd
, const char *name
)
817 unsigned char magic
[16];
820 /* Read the magic signature */
821 if (mc_read (fd
, (char *) magic
, 4) != 4)
822 return COMPRESSION_NONE
;
824 /* GZIP_MAGIC and OLD_GZIP_MAGIC */
825 if (magic
[0] == 037 && (magic
[1] == 0213 || magic
[1] == 0236))
827 return COMPRESSION_GZIP
;
831 if (magic
[0] == 0120 && magic
[1] == 0113 && magic
[2] == 003 && magic
[3] == 004)
833 /* Read compression type */
834 mc_lseek (fd
, 8, SEEK_SET
);
835 if (mc_read (fd
, (char *) magic
, 2) != 2)
836 return COMPRESSION_NONE
;
838 /* Gzip can handle only deflated (8) or stored (0) files */
839 if ((magic
[0] != 8 && magic
[0] != 0) || magic
[1] != 0)
840 return COMPRESSION_NONE
;
842 /* Compatible with gzip */
843 return COMPRESSION_GZIP
;
846 /* PACK_MAGIC and LZH_MAGIC and compress magic */
847 if (magic
[0] == 037 && (magic
[1] == 036 || magic
[1] == 0240 || magic
[1] == 0235))
849 /* Compatible with gzip */
850 return COMPRESSION_GZIP
;
853 /* BZIP and BZIP2 files */
854 if ((magic
[0] == 'B') && (magic
[1] == 'Z') && (magic
[3] >= '1') && (magic
[3] <= '9'))
859 return COMPRESSION_BZIP
;
861 return COMPRESSION_BZIP2
;
867 /* Support for LZMA (only utils format with magic in header).
868 * This is the default format of LZMA utils 4.32.1 and later. */
870 if (mc_read (fd
, (char *) magic
+ 4, 2) != 2)
871 return COMPRESSION_NONE
;
873 /* LZMA utils format */
876 && magic
[2] == 'Z' && magic
[3] == 'M' && magic
[4] == 'A' && magic
[5] == 0x00)
877 return COMPRESSION_LZMA
;
879 /* XZ compression magic */
882 && magic
[2] == 0x7A && magic
[3] == 0x58 && magic
[4] == 0x5A && magic
[5] == 0x00)
883 return COMPRESSION_XZ
;
885 str_len
= strlen (name
);
886 /* HACK: we must belive to extension of LZMA file :) ... */
887 if ((str_len
> 5 && strcmp (&name
[str_len
- 5], ".lzma") == 0) ||
888 (str_len
> 4 && strcmp (&name
[str_len
- 4], ".tlz") == 0))
889 return COMPRESSION_LZMA
;
891 return COMPRESSION_NONE
;
894 /* --------------------------------------------------------------------------------------------- */
897 decompress_extension (int type
)
901 case COMPRESSION_GZIP
:
902 return "/ugz" VFS_PATH_URL_DELIMITER
;
903 case COMPRESSION_BZIP
:
904 return "/ubz" VFS_PATH_URL_DELIMITER
;
905 case COMPRESSION_BZIP2
:
906 return "/ubz2" VFS_PATH_URL_DELIMITER
;
907 case COMPRESSION_LZMA
:
908 return "/ulzma" VFS_PATH_URL_DELIMITER
;
910 return "/uxz" VFS_PATH_URL_DELIMITER
;
914 /* Should never reach this place */
915 fprintf (stderr
, "Fatal: decompress_extension called with an unknown argument\n");
919 /* --------------------------------------------------------------------------------------------- */
922 wipe_password (char *passwd
)
933 /* --------------------------------------------------------------------------------------------- */
935 * Convert "\E" -> esc character and ^x to control-x key and ^^ to ^ key
937 * @param p pointer to string
939 * @return newly allocated string
943 convert_controls (const char *p
)
945 char *valcopy
= g_strdup (p
);
948 /* Parse the escape special character */
949 for (q
= valcopy
; *p
;)
954 if ((*p
== 'e') || (*p
== 'E'))
969 char c
= (*p
| 0x20);
970 if (c
>= 'a' && c
<= 'z')
987 /* --------------------------------------------------------------------------------------------- */
989 * Finds out a relative path from first to second, i.e. goes as many ..
990 * as needed up in first and then goes down using second
994 diff_two_paths (const vfs_path_t
* vpath1
, const vfs_path_t
* vpath2
)
996 char *p
, *q
, *r
, *s
, *buf
= NULL
;
997 int i
, j
, prevlen
= -1, currlen
;
998 char *my_first
= NULL
, *my_second
= NULL
;
1000 my_first
= resolve_symlinks (vpath1
);
1001 if (my_first
== NULL
)
1004 my_second
= resolve_symlinks (vpath2
);
1005 if (my_second
== NULL
)
1008 for (j
= 0; j
< 2; j
++)
1014 r
= strchr (p
, PATH_SEP
);
1015 s
= strchr (q
, PATH_SEP
);
1016 if (r
== NULL
|| s
== NULL
)
1020 if (strcmp (p
, q
) != 0)
1034 for (i
= 0; (p
= strchr (p
+ 1, PATH_SEP
)) != NULL
; i
++)
1036 currlen
= (i
+ 1) * 3 + strlen (q
) + 1;
1039 if (currlen
< prevlen
)
1044 p
= buf
= g_malloc (currlen
);
1046 for (; i
>= 0; i
--, p
+= 3)
1057 /* --------------------------------------------------------------------------------------------- */
1059 * Append text to GList, remove all entries with the same text
1063 list_append_unique (GList
* list
, char *text
)
1068 * Go to the last position and traverse the list backwards
1069 * starting from the second last entry to make sure that we
1070 * are not removing the current link.
1072 list
= g_list_append (list
, text
);
1073 list
= g_list_last (list
);
1074 lc_link
= g_list_previous (list
);
1076 while (lc_link
!= NULL
)
1080 newlink
= g_list_previous (lc_link
);
1081 if (strcmp ((char *) lc_link
->data
, text
) == 0)
1085 g_free (lc_link
->data
);
1086 tmp
= g_list_remove_link (list
, lc_link
);
1088 g_list_free_1 (lc_link
);
1096 /* --------------------------------------------------------------------------------------------- */
1098 * Read and restore position for the given filename.
1099 * If there is no stored data, return line 1 and col 0.
1103 load_file_position (const vfs_path_t
* filename_vpath
, long *line
, long *column
, off_t
* offset
,
1104 GArray
** bookmarks
)
1108 char buf
[MC_MAXPATHLEN
+ 100];
1109 const size_t len
= vfs_path_len (filename_vpath
);
1116 /* open file with positions */
1117 fn
= mc_config_get_full_path (MC_FILEPOS_FILE
);
1118 f
= fopen (fn
, "r");
1123 /* prepare array for serialized bookmarks */
1124 if (bookmarks
!= NULL
)
1125 *bookmarks
= g_array_sized_new (FALSE
, FALSE
, sizeof (size_t), MAX_SAVED_BOOKMARKS
);
1127 while (fgets (buf
, sizeof (buf
), f
) != NULL
)
1132 /* check if the filename matches the beginning of string */
1133 if (strncmp (buf
, vfs_path_as_str (filename_vpath
), len
) != 0)
1136 /* followed by single space */
1137 if (buf
[len
] != ' ')
1140 /* and string without spaces */
1142 if (strchr (p
, ' ') != NULL
)
1145 pos_tokens
= g_strsplit (p
, ";", 3 + MAX_SAVED_BOOKMARKS
);
1146 if (pos_tokens
[0] == NULL
)
1154 *line
= strtol (pos_tokens
[0], NULL
, 10);
1155 if (pos_tokens
[1] == NULL
)
1162 *column
= strtol (pos_tokens
[1], NULL
, 10);
1163 if (pos_tokens
[2] == NULL
)
1165 else if (bookmarks
!= NULL
)
1169 *offset
= (off_t
) g_ascii_strtoll (pos_tokens
[2], NULL
, 10);
1171 for (i
= 0; i
< MAX_SAVED_BOOKMARKS
&& pos_tokens
[3 + i
] != NULL
; i
++)
1175 val
= strtoul (pos_tokens
[3 + i
], NULL
, 10);
1176 g_array_append_val (*bookmarks
, val
);
1182 g_strfreev (pos_tokens
);
1188 /* --------------------------------------------------------------------------------------------- */
1190 * Save position for the given file
1194 save_file_position (const vfs_path_t
* filename_vpath
, long line
, long column
, off_t offset
,
1197 static size_t filepos_max_saved_entries
= 0;
1200 char buf
[MC_MAXPATHLEN
+ 100];
1202 const size_t len
= vfs_path_len (filename_vpath
);
1203 gboolean src_error
= FALSE
;
1205 if (filepos_max_saved_entries
== 0)
1206 filepos_max_saved_entries
= mc_config_get_int (mc_main_config
, CONFIG_APP_SECTION
,
1207 "filepos_max_saved_entries", 1024);
1209 fn
= mc_config_get_full_path (MC_FILEPOS_FILE
);
1213 mc_util_make_backup_if_possible (fn
, TMP_SUFFIX
);
1216 f
= fopen (fn
, "w");
1218 goto open_target_error
;
1220 tmp_fn
= g_strdup_printf ("%s" TMP_SUFFIX
, fn
);
1221 tmp_f
= fopen (tmp_fn
, "r");
1225 goto open_source_error
;
1228 /* put the new record */
1229 if (line
!= 1 || column
!= 0 || bookmarks
!= NULL
)
1232 (f
, "%s %ld;%ld;%" PRIuMAX
, vfs_path_as_str (filename_vpath
), line
, column
,
1233 (uintmax_t) offset
) < 0)
1234 goto write_position_error
;
1235 if (bookmarks
!= NULL
)
1236 for (i
= 0; i
< bookmarks
->len
&& i
< MAX_SAVED_BOOKMARKS
; i
++)
1237 if (fprintf (f
, ";%zu", g_array_index (bookmarks
, size_t, i
)) < 0)
1238 goto write_position_error
;
1240 if (fprintf (f
, "\n") < 0)
1241 goto write_position_error
;
1245 while (fgets (buf
, sizeof (buf
), tmp_f
) != NULL
)
1247 if (buf
[len
] == ' ' && strncmp (buf
, vfs_path_as_str (filename_vpath
), len
) == 0
1248 && strchr (&buf
[len
+ 1], ' ') == NULL
)
1251 fprintf (f
, "%s", buf
);
1252 if (++i
> filepos_max_saved_entries
)
1256 write_position_error
:
1262 mc_util_restore_from_backup_if_possible (fn
, TMP_SUFFIX
);
1264 mc_util_unlink_backup_if_possible (fn
, TMP_SUFFIX
);
1268 if (bookmarks
!= NULL
)
1269 g_array_free (bookmarks
, TRUE
);
1272 /* --------------------------------------------------------------------------------------------- */
1275 ascii_alpha_to_cntrl (int ch
)
1277 if ((ch
>= ASCII_A
&& ch
<= ASCII_Z
) || (ch
>= ASCII_a
&& ch
<= ASCII_z
))
1284 /* --------------------------------------------------------------------------------------------- */
1289 const char *result
, *sep
;
1292 sep
= strchr (result
, '|');
1293 return (sep
!= NULL
) ? sep
+ 1 : result
;
1296 /* --------------------------------------------------------------------------------------------- */
1299 mc_util_make_backup_if_possible (const char *file_name
, const char *backup_suffix
)
1301 struct stat stat_buf
;
1304 if (!exist_file (file_name
))
1307 backup_path
= g_strdup_printf ("%s%s", file_name
, backup_suffix
);
1309 if (backup_path
== NULL
)
1312 ret
= mc_util_write_backup_content (file_name
, backup_path
);
1316 /* Backup file will have same ownership with main file. */
1317 if (stat (file_name
, &stat_buf
) == 0)
1318 chmod (backup_path
, stat_buf
.st_mode
);
1320 chmod (backup_path
, S_IRUSR
| S_IWUSR
);
1323 g_free (backup_path
);
1328 /* --------------------------------------------------------------------------------------------- */
1331 mc_util_restore_from_backup_if_possible (const char *file_name
, const char *backup_suffix
)
1336 backup_path
= g_strdup_printf ("%s%s", file_name
, backup_suffix
);
1337 if (backup_path
== NULL
)
1340 ret
= mc_util_write_backup_content (backup_path
, file_name
);
1341 g_free (backup_path
);
1346 /* --------------------------------------------------------------------------------------------- */
1349 mc_util_unlink_backup_if_possible (const char *file_name
, const char *backup_suffix
)
1353 backup_path
= g_strdup_printf ("%s%s", file_name
, backup_suffix
);
1354 if (backup_path
== NULL
)
1357 if (exist_file (backup_path
))
1361 vpath
= vfs_path_from_str (backup_path
);
1363 vfs_path_free (vpath
);
1366 g_free (backup_path
);
1370 /* --------------------------------------------------------------------------------------------- */
1372 * partly taken from dcigettext.c, returns "" for default locale
1373 * value should be freed by calling function g_free()
1377 guess_message_value (void)
1379 static const char *const var
[] = {
1380 /* Setting of LC_ALL overwrites all other. */
1381 /* Do not use LANGUAGE for check user locale and drowing hints */
1383 /* Next comes the name of the desired category. */
1385 /* Last possibility is the LANG environment variable. */
1387 /* NULL exit loops */
1392 const char *locale
= NULL
;
1394 while (var
[i
] != NULL
)
1396 locale
= getenv (var
[i
]);
1397 if (locale
!= NULL
&& locale
[0] != '\0')
1405 return g_strdup (locale
);
1408 /* --------------------------------------------------------------------------------------------- */
1410 * Propagate error in simple way.
1412 * @param dest error return location
1413 * @param code error code
1414 * @param format printf()-style format for error message
1415 * @param ... parameters for message format
1419 mc_propagate_error (GError
** dest
, int code
, const char *format
, ...)
1421 if (dest
!= NULL
&& *dest
== NULL
)
1426 va_start (args
, format
);
1427 tmp_error
= g_error_new_valist (MC_ERROR
, code
, format
, args
);
1430 g_propagate_error (dest
, tmp_error
);
1434 /* --------------------------------------------------------------------------------------------- */
1436 * Replace existing error in simple way.
1438 * @param dest error return location
1439 * @param code error code
1440 * @param format printf()-style format for error message
1441 * @param ... parameters for message format
1445 mc_replace_error (GError
** dest
, int code
, const char *format
, ...)
1452 va_start (args
, format
);
1453 tmp_error
= g_error_new_valist (MC_ERROR
, code
, format
, args
);
1456 g_error_free (*dest
);
1458 g_propagate_error (dest
, tmp_error
);
1462 /* --------------------------------------------------------------------------------------------- */
1465 * Returns if the given duration has elapsed since the given timestamp,
1466 * and if it has then updates the timestamp.
1468 * @param timestamp the last timestamp in microseconds, updated if the given time elapsed
1469 * @param deleay amount of time in microseconds
1471 * @return TRUE if clock skew detected, FALSE otherwise
1474 mc_time_elapsed (guint64
* timestamp
, guint64 delay
)
1478 now
= mc_timer_elapsed (mc_global
.timer
);
1480 if (now
>= *timestamp
&& now
< *timestamp
+ delay
)
1487 /* --------------------------------------------------------------------------------------------- */