4 Copyright (C) 1994-2018
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
= _("B");
351 if (size
> 999999999UL)
353 divisor
= use_si
? 1000 : 1024;
354 xtra
= use_si
? _("kB") : _("KiB");
356 if (size
/ divisor
> 999999999UL)
358 divisor
= use_si
? (1000 * 1000) : (1024 * 1024);
359 xtra
= use_si
? _("MB") : _("MiB");
361 if (size
/ divisor
> 999999999UL)
363 divisor
= use_si
? (1000 * 1000 * 1000) : (1024 * 1024 * 1024);
364 xtra
= use_si
? _("GB") : _("GiB");
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 /* @size format is "size unit", i.e. "[digits][space][letters]".
387 Copy all charactes after digits. */
388 while (p
>= y
&& !g_ascii_isdigit (*p
))
390 for (count
= 0; p
>= y
; count
++)
405 /* --------------------------------------------------------------------------------------------- */
407 * Print file SIZE to BUFFER, but don't exceed LEN characters,
408 * not including trailing 0. BUFFER should be at least LEN+1 long.
409 * This function is called for every file on panels, so avoid
410 * floating point by any means.
412 * Units: size units (filesystem sizes are 1K blocks)
413 * 0=bytes, 1=Kbytes, 2=Mbytes, etc.
417 size_trunc_len (char *buffer
, unsigned int len
, uintmax_t size
, int units
, gboolean use_si
)
419 /* Avoid taking power for every file. */
421 static const uintmax_t power10
[] = {
422 /* we hope that size of uintmax_t is 4 bytes at least */
433 /* maximum value of uintmax_t (in case of 4 bytes) is
436 #if SIZEOF_UINTMAX_T == 8
444 10000000000000000ULL,
445 100000000000000000ULL,
446 1000000000000000000ULL,
447 10000000000000000000ULL
448 /* maximum value of uintmax_t (in case of 8 bytes) is
454 static const char *const suffix
[] = { "", "K", "M", "G", "T", "P", "E", "Z", "Y", NULL
};
455 static const char *const suffix_lc
[] = { "", "k", "m", "g", "t", "p", "e", "z", "y", NULL
};
457 const char *const *sfx
= use_si
? suffix_lc
: suffix
;
462 #if SIZEOF_UINTMAX_T == 8
463 /* 20 decimal digits are required to represent 8 bytes */
467 /* 10 decimal digits are required to represent 4 bytes */
473 * recalculate from 1024 base to 1000 base if units>0
474 * We can't just multiply by 1024 - that might cause overflow
475 * if uintmax_t type is too small
478 for (j
= 0; j
< units
; j
++)
480 uintmax_t size_remain
;
482 size_remain
= ((size
% 125) * 1024) / 1000; /* size mod 125, recalculated */
483 size
/= 125; /* 128/125 = 1024/1000 */
484 size
*= 128; /* This will convert size from multiple of 1024 to multiple of 1000 */
485 size
+= size_remain
; /* Re-add remainder lost by division/multiplication */
488 for (j
= units
; sfx
[j
] != NULL
; j
++)
494 /* Empty files will print "0" even with minimal width. */
495 g_snprintf (buffer
, len
+ 1, "%s", "0");
499 /* Use "~K" or just "K" if len is 1. Use "B" for bytes. */
500 g_snprintf (buffer
, len
+ 1, (len
> 1) ? "~%s" : "%s", (j
> 1) ? sfx
[j
- 1] : "B");
505 if (size
< power10
[len
- (j
> 0 ? 1 : 0)])
507 g_snprintf (buffer
, len
+ 1, "%" PRIuMAX
"%s", size
, sfx
[j
]);
511 /* Powers of 1000 or 1024, with rounding. */
513 size
= (size
+ 500) / 1000;
515 size
= (size
+ 512) >> 10;
519 /* --------------------------------------------------------------------------------------------- */
522 string_perm (mode_t mode_bits
)
524 static char mode
[11];
526 strcpy (mode
, "----------");
527 if (S_ISDIR (mode_bits
))
529 if (S_ISCHR (mode_bits
))
531 if (S_ISBLK (mode_bits
))
533 if (S_ISLNK (mode_bits
))
535 if (S_ISFIFO (mode_bits
))
537 if (S_ISNAM (mode_bits
))
539 if (S_ISSOCK (mode_bits
))
541 if (S_ISDOOR (mode_bits
))
543 if (ismode (mode_bits
, S_IXOTH
))
545 if (ismode (mode_bits
, S_IWOTH
))
547 if (ismode (mode_bits
, S_IROTH
))
549 if (ismode (mode_bits
, S_IXGRP
))
551 if (ismode (mode_bits
, S_IWGRP
))
553 if (ismode (mode_bits
, S_IRGRP
))
555 if (ismode (mode_bits
, S_IXUSR
))
557 if (ismode (mode_bits
, S_IWUSR
))
559 if (ismode (mode_bits
, S_IRUSR
))
562 if (ismode (mode_bits
, S_ISUID
))
563 mode
[3] = (mode
[3] == 'x') ? 's' : 'S';
566 if (ismode (mode_bits
, S_ISGID
))
567 mode
[6] = (mode
[6] == 'x') ? 's' : 'S';
570 if (ismode (mode_bits
, S_ISVTX
))
571 mode
[9] = (mode
[9] == 'x') ? 't' : 'T';
576 /* --------------------------------------------------------------------------------------------- */
579 extension (const char *filename
)
581 const char *d
= strrchr (filename
, '.');
582 return (d
!= NULL
) ? d
+ 1 : "";
585 /* --------------------------------------------------------------------------------------------- */
588 load_mc_home_file (const char *from
, const char *filename
, char **allocated_filename
,
591 char *hintfile_base
, *hintfile
;
595 hintfile_base
= g_build_filename (from
, filename
, (char *) NULL
);
596 lang
= guess_message_value ();
598 hintfile
= g_strconcat (hintfile_base
, ".", lang
, (char *) NULL
);
599 if (!g_file_get_contents (hintfile
, &data
, length
, NULL
))
601 /* Fall back to the two-letter language code */
602 if (lang
[0] != '\0' && lang
[1] != '\0')
605 hintfile
= g_strconcat (hintfile_base
, ".", lang
, (char *) NULL
);
606 if (!g_file_get_contents (hintfile
, &data
, length
, NULL
))
609 hintfile
= hintfile_base
;
610 g_file_get_contents (hintfile_base
, &data
, length
, NULL
);
616 if (hintfile
!= hintfile_base
)
617 g_free (hintfile_base
);
619 if (allocated_filename
!= NULL
)
620 *allocated_filename
= hintfile
;
627 /* --------------------------------------------------------------------------------------------- */
630 extract_line (const char *s
, const char *top
)
632 static char tmp_line
[BUF_MEDIUM
];
635 while (*s
&& *s
!= '\n' && (size_t) (t
- tmp_line
) < sizeof (tmp_line
) - 1 && s
< top
)
641 /* --------------------------------------------------------------------------------------------- */
643 * The basename routine
647 x_basename (const char *s
)
649 const char *url_delim
, *path_sep
;
651 url_delim
= g_strrstr (s
, VFS_PATH_URL_DELIMITER
);
652 path_sep
= strrchr (s
, PATH_SEP
);
654 if (path_sep
== NULL
)
657 if (url_delim
== NULL
658 || url_delim
< path_sep
- strlen (VFS_PATH_URL_DELIMITER
)
659 || url_delim
- s
+ strlen (VFS_PATH_URL_DELIMITER
) < strlen (s
))
661 /* avoid trailing PATH_SEP, if present */
662 if (!IS_PATH_SEP (s
[strlen (s
) - 1]))
663 return (path_sep
!= NULL
) ? path_sep
+ 1 : s
;
665 while (--path_sep
> s
&& !IS_PATH_SEP (*path_sep
))
667 return (path_sep
!= s
) ? path_sep
+ 1 : s
;
670 while (--url_delim
> s
&& !IS_PATH_SEP (*url_delim
))
672 while (--url_delim
> s
&& !IS_PATH_SEP (*url_delim
))
675 return (url_delim
== s
) ? s
: url_delim
+ 1;
678 /* --------------------------------------------------------------------------------------------- */
681 unix_error_string (int error_num
)
683 static char buffer
[BUF_LARGE
];
684 gchar
*strerror_currentlocale
;
686 strerror_currentlocale
= g_locale_from_utf8 (g_strerror (error_num
), -1, NULL
, NULL
, NULL
);
687 g_snprintf (buffer
, sizeof (buffer
), "%s (%d)", strerror_currentlocale
, error_num
);
688 g_free (strerror_currentlocale
);
693 /* --------------------------------------------------------------------------------------------- */
696 skip_separators (const char *s
)
700 for (; *su
!= '\0'; str_cnext_char (&su
))
701 if (!whitespace (*su
) && *su
!= ',')
707 /* --------------------------------------------------------------------------------------------- */
710 skip_numbers (const char *s
)
714 for (; *su
!= '\0'; str_cnext_char (&su
))
715 if (!str_isdigit (su
))
721 /* --------------------------------------------------------------------------------------------- */
723 * Remove all control sequences from the argument string. We define
724 * "control sequence", in a sort of pidgin BNF, as follows:
726 * control-seq = Esc non-'['
727 * | Esc '[' (0 or more digits or ';' or ':' or '?') (any other char)
729 * The 256-color and true-color escape sequences should allow either ';' or ':' inside as separator,
730 * actually, ':' is the more correct according to ECMA-48.
731 * Some terminal emulators (e.g. xterm, gnome-terminal) support this.
733 * Non-printable characters are also removed.
737 strip_ctrl_codes (char *s
)
739 char *w
; /* Current position where the stripped data is written */
740 char *r
; /* Current position where the original data is read */
745 for (w
= s
, r
= s
; *r
!= '\0';)
749 /* Skip the control sequence's arguments */ ;
750 /* '(' need to avoid strange 'B' letter in *Suse (if mc runs under root user) */
751 if (*(++r
) == '[' || *r
== '(')
753 /* strchr() matches trailing binary 0 */
754 while (*(++r
) != '\0' && strchr ("0123456789;:?", *r
) != NULL
)
760 * Skip xterm's OSC (Operating System Command)
761 * http://www.xfree86.org/current/ctlseqs.html
767 for (; *new_r
!= '\0'; ++new_r
)
777 if (*(new_r
+ 1) == '\\')
791 * Now we are at the last character of the sequence.
792 * Skip it unless it's binary 0.
801 n
= str_get_next_char (r
);
804 memmove (w
, r
, n
- r
);
815 /* --------------------------------------------------------------------------------------------- */
817 enum compression_type
818 get_compression_type (int fd
, const char *name
)
820 unsigned char magic
[16];
823 /* Read the magic signature */
824 if (mc_read (fd
, (char *) magic
, 4) != 4)
825 return COMPRESSION_NONE
;
827 /* GZIP_MAGIC and OLD_GZIP_MAGIC */
828 if (magic
[0] == 037 && (magic
[1] == 0213 || magic
[1] == 0236))
830 return COMPRESSION_GZIP
;
834 if (magic
[0] == 0120 && magic
[1] == 0113 && magic
[2] == 003 && magic
[3] == 004)
836 /* Read compression type */
837 mc_lseek (fd
, 8, SEEK_SET
);
838 if (mc_read (fd
, (char *) magic
, 2) != 2)
839 return COMPRESSION_NONE
;
841 /* Gzip can handle only deflated (8) or stored (0) files */
842 if ((magic
[0] != 8 && magic
[0] != 0) || magic
[1] != 0)
843 return COMPRESSION_NONE
;
845 /* Compatible with gzip */
846 return COMPRESSION_GZIP
;
849 /* PACK_MAGIC and LZH_MAGIC and compress magic */
850 if (magic
[0] == 037 && (magic
[1] == 036 || magic
[1] == 0240 || magic
[1] == 0235))
852 /* Compatible with gzip */
853 return COMPRESSION_GZIP
;
856 /* BZIP and BZIP2 files */
857 if ((magic
[0] == 'B') && (magic
[1] == 'Z') && (magic
[3] >= '1') && (magic
[3] <= '9'))
862 return COMPRESSION_BZIP
;
864 return COMPRESSION_BZIP2
;
870 /* LZ4 format - v1.5.0 - 0x184D2204 (little endian) */
871 if (magic
[0] == 0x04 && magic
[1] == 0x22 && magic
[2] == 0x4d && magic
[3] == 0x18)
872 return COMPRESSION_LZ4
;
874 if (mc_read (fd
, (char *) magic
+ 4, 2) != 2)
875 return COMPRESSION_NONE
;
880 && magic
[2] == 'I' && magic
[3] == 'P' && (magic
[4] == 0x00 || magic
[4] == 0x01))
881 return COMPRESSION_LZIP
;
883 /* Support for LZMA (only utils format with magic in header).
884 * This is the default format of LZMA utils 4.32.1 and later. */
887 && magic
[2] == 'Z' && magic
[3] == 'M' && magic
[4] == 'A' && magic
[5] == 0x00)
888 return COMPRESSION_LZMA
;
890 /* XZ compression magic */
893 && magic
[2] == 0x7A && magic
[3] == 0x58 && magic
[4] == 0x5A && magic
[5] == 0x00)
894 return COMPRESSION_XZ
;
896 if (magic
[0] == 0x28 && magic
[1] == 0xB5 && magic
[2] == 0x2F && magic
[3] == 0xFD)
897 return COMPRESSION_ZSTD
;
899 str_len
= strlen (name
);
900 /* HACK: we must belive to extension of LZMA file :) ... */
901 if ((str_len
> 5 && strcmp (&name
[str_len
- 5], ".lzma") == 0) ||
902 (str_len
> 4 && strcmp (&name
[str_len
- 4], ".tlz") == 0))
903 return COMPRESSION_LZMA
;
905 return COMPRESSION_NONE
;
908 /* --------------------------------------------------------------------------------------------- */
911 decompress_extension (int type
)
915 case COMPRESSION_GZIP
:
916 return "/ugz" VFS_PATH_URL_DELIMITER
;
917 case COMPRESSION_BZIP
:
918 return "/ubz" VFS_PATH_URL_DELIMITER
;
919 case COMPRESSION_BZIP2
:
920 return "/ubz2" VFS_PATH_URL_DELIMITER
;
921 case COMPRESSION_LZIP
:
922 return "/ulz" VFS_PATH_URL_DELIMITER
;
923 case COMPRESSION_LZ4
:
924 return "/ulz4" VFS_PATH_URL_DELIMITER
;
925 case COMPRESSION_LZMA
:
926 return "/ulzma" VFS_PATH_URL_DELIMITER
;
928 return "/uxz" VFS_PATH_URL_DELIMITER
;
929 case COMPRESSION_ZSTD
:
930 return "/uzst" VFS_PATH_URL_DELIMITER
;
934 /* Should never reach this place */
935 fprintf (stderr
, "Fatal: decompress_extension called with an unknown argument\n");
939 /* --------------------------------------------------------------------------------------------- */
942 wipe_password (char *passwd
)
953 /* --------------------------------------------------------------------------------------------- */
955 * Convert "\E" -> esc character and ^x to control-x key and ^^ to ^ key
957 * @param p pointer to string
959 * @return newly allocated string
963 convert_controls (const char *p
)
965 char *valcopy
= g_strdup (p
);
968 /* Parse the escape special character */
969 for (q
= valcopy
; *p
;)
974 if ((*p
== 'e') || (*p
== 'E'))
989 char c
= (*p
| 0x20);
990 if (c
>= 'a' && c
<= 'z')
1007 /* --------------------------------------------------------------------------------------------- */
1009 * Finds out a relative path from first to second, i.e. goes as many ..
1010 * as needed up in first and then goes down using second
1014 diff_two_paths (const vfs_path_t
* vpath1
, const vfs_path_t
* vpath2
)
1016 int j
, prevlen
= -1, currlen
;
1017 char *my_first
= NULL
, *my_second
= NULL
;
1020 my_first
= resolve_symlinks (vpath1
);
1021 if (my_first
== NULL
)
1024 my_second
= resolve_symlinks (vpath2
);
1025 if (my_second
== NULL
)
1028 for (j
= 0; j
< 2; j
++)
1040 r
= strchr (p
, PATH_SEP
);
1043 s
= strchr (q
, PATH_SEP
);
1048 if (len
!= (s
- q
) || strncmp (p
, q
, (size_t) len
) != 0)
1055 for (i
= 0; (p
= strchr (p
+ 1, PATH_SEP
)) != NULL
; i
++)
1057 currlen
= (i
+ 1) * 3 + strlen (q
) + 1;
1060 if (currlen
< prevlen
)
1065 p
= buf
= g_malloc (currlen
);
1067 for (; i
>= 0; i
--, p
+= 3)
1078 /* --------------------------------------------------------------------------------------------- */
1080 * Append text to GList, remove all entries with the same text
1084 list_append_unique (GList
* list
, char *text
)
1089 * Go to the last position and traverse the list backwards
1090 * starting from the second last entry to make sure that we
1091 * are not removing the current link.
1093 list
= g_list_append (list
, text
);
1094 list
= g_list_last (list
);
1095 lc_link
= g_list_previous (list
);
1097 while (lc_link
!= NULL
)
1101 newlink
= g_list_previous (lc_link
);
1102 if (strcmp ((char *) lc_link
->data
, text
) == 0)
1106 g_free (lc_link
->data
);
1107 tmp
= g_list_remove_link (list
, lc_link
);
1109 g_list_free_1 (lc_link
);
1117 /* --------------------------------------------------------------------------------------------- */
1119 * Read and restore position for the given filename.
1120 * If there is no stored data, return line 1 and col 0.
1124 load_file_position (const vfs_path_t
* filename_vpath
, long *line
, long *column
, off_t
* offset
,
1125 GArray
** bookmarks
)
1129 char buf
[MC_MAXPATHLEN
+ 100];
1130 const size_t len
= vfs_path_len (filename_vpath
);
1137 /* open file with positions */
1138 fn
= mc_config_get_full_path (MC_FILEPOS_FILE
);
1139 f
= fopen (fn
, "r");
1144 /* prepare array for serialized bookmarks */
1145 if (bookmarks
!= NULL
)
1146 *bookmarks
= g_array_sized_new (FALSE
, FALSE
, sizeof (size_t), MAX_SAVED_BOOKMARKS
);
1148 while (fgets (buf
, sizeof (buf
), f
) != NULL
)
1153 /* check if the filename matches the beginning of string */
1154 if (strncmp (buf
, vfs_path_as_str (filename_vpath
), len
) != 0)
1157 /* followed by single space */
1158 if (buf
[len
] != ' ')
1161 /* and string without spaces */
1163 if (strchr (p
, ' ') != NULL
)
1166 pos_tokens
= g_strsplit (p
, ";", 3 + MAX_SAVED_BOOKMARKS
);
1167 if (pos_tokens
[0] == NULL
)
1175 *line
= strtol (pos_tokens
[0], NULL
, 10);
1176 if (pos_tokens
[1] == NULL
)
1183 *column
= strtol (pos_tokens
[1], NULL
, 10);
1184 if (pos_tokens
[2] == NULL
)
1186 else if (bookmarks
!= NULL
)
1190 *offset
= (off_t
) g_ascii_strtoll (pos_tokens
[2], NULL
, 10);
1192 for (i
= 0; i
< MAX_SAVED_BOOKMARKS
&& pos_tokens
[3 + i
] != NULL
; i
++)
1196 val
= strtoul (pos_tokens
[3 + i
], NULL
, 10);
1197 g_array_append_val (*bookmarks
, val
);
1203 g_strfreev (pos_tokens
);
1209 /* --------------------------------------------------------------------------------------------- */
1211 * Save position for the given file
1215 save_file_position (const vfs_path_t
* filename_vpath
, long line
, long column
, off_t offset
,
1218 static size_t filepos_max_saved_entries
= 0;
1221 char buf
[MC_MAXPATHLEN
+ 100];
1223 const size_t len
= vfs_path_len (filename_vpath
);
1224 gboolean src_error
= FALSE
;
1226 if (filepos_max_saved_entries
== 0)
1227 filepos_max_saved_entries
= mc_config_get_int (mc_global
.main_config
, CONFIG_APP_SECTION
,
1228 "filepos_max_saved_entries", 1024);
1230 fn
= mc_config_get_full_path (MC_FILEPOS_FILE
);
1234 mc_util_make_backup_if_possible (fn
, TMP_SUFFIX
);
1237 f
= fopen (fn
, "w");
1239 goto open_target_error
;
1241 tmp_fn
= g_strdup_printf ("%s" TMP_SUFFIX
, fn
);
1242 tmp_f
= fopen (tmp_fn
, "r");
1246 goto open_source_error
;
1249 /* put the new record */
1250 if (line
!= 1 || column
!= 0 || bookmarks
!= NULL
)
1253 (f
, "%s %ld;%ld;%" PRIuMAX
, vfs_path_as_str (filename_vpath
), line
, column
,
1254 (uintmax_t) offset
) < 0)
1255 goto write_position_error
;
1256 if (bookmarks
!= NULL
)
1257 for (i
= 0; i
< bookmarks
->len
&& i
< MAX_SAVED_BOOKMARKS
; i
++)
1258 if (fprintf (f
, ";%zu", g_array_index (bookmarks
, size_t, i
)) < 0)
1259 goto write_position_error
;
1261 if (fprintf (f
, "\n") < 0)
1262 goto write_position_error
;
1266 while (fgets (buf
, sizeof (buf
), tmp_f
) != NULL
)
1268 if (buf
[len
] == ' ' && strncmp (buf
, vfs_path_as_str (filename_vpath
), len
) == 0
1269 && strchr (&buf
[len
+ 1], ' ') == NULL
)
1272 fprintf (f
, "%s", buf
);
1273 if (++i
> filepos_max_saved_entries
)
1277 write_position_error
:
1283 mc_util_restore_from_backup_if_possible (fn
, TMP_SUFFIX
);
1285 mc_util_unlink_backup_if_possible (fn
, TMP_SUFFIX
);
1289 if (bookmarks
!= NULL
)
1290 g_array_free (bookmarks
, TRUE
);
1293 /* --------------------------------------------------------------------------------------------- */
1296 ascii_alpha_to_cntrl (int ch
)
1298 if ((ch
>= ASCII_A
&& ch
<= ASCII_Z
) || (ch
>= ASCII_a
&& ch
<= ASCII_z
))
1305 /* --------------------------------------------------------------------------------------------- */
1310 const char *result
, *sep
;
1313 sep
= strchr (result
, '|');
1314 return (sep
!= NULL
) ? sep
+ 1 : result
;
1317 /* --------------------------------------------------------------------------------------------- */
1320 mc_util_make_backup_if_possible (const char *file_name
, const char *backup_suffix
)
1322 struct stat stat_buf
;
1325 if (!exist_file (file_name
))
1328 backup_path
= g_strdup_printf ("%s%s", file_name
, backup_suffix
);
1330 if (backup_path
== NULL
)
1333 ret
= mc_util_write_backup_content (file_name
, backup_path
);
1337 /* Backup file will have same ownership with main file. */
1338 if (stat (file_name
, &stat_buf
) == 0)
1339 chmod (backup_path
, stat_buf
.st_mode
);
1341 chmod (backup_path
, S_IRUSR
| S_IWUSR
);
1344 g_free (backup_path
);
1349 /* --------------------------------------------------------------------------------------------- */
1352 mc_util_restore_from_backup_if_possible (const char *file_name
, const char *backup_suffix
)
1357 backup_path
= g_strdup_printf ("%s%s", file_name
, backup_suffix
);
1358 if (backup_path
== NULL
)
1361 ret
= mc_util_write_backup_content (backup_path
, file_name
);
1362 g_free (backup_path
);
1367 /* --------------------------------------------------------------------------------------------- */
1370 mc_util_unlink_backup_if_possible (const char *file_name
, const char *backup_suffix
)
1374 backup_path
= g_strdup_printf ("%s%s", file_name
, backup_suffix
);
1375 if (backup_path
== NULL
)
1378 if (exist_file (backup_path
))
1382 vpath
= vfs_path_from_str (backup_path
);
1384 vfs_path_free (vpath
);
1387 g_free (backup_path
);
1391 /* --------------------------------------------------------------------------------------------- */
1393 * partly taken from dcigettext.c, returns "" for default locale
1394 * value should be freed by calling function g_free()
1398 guess_message_value (void)
1400 static const char *const var
[] = {
1401 /* Setting of LC_ALL overwrites all other. */
1402 /* Do not use LANGUAGE for check user locale and drowing hints */
1404 /* Next comes the name of the desired category. */
1406 /* Last possibility is the LANG environment variable. */
1408 /* NULL exit loops */
1413 const char *locale
= NULL
;
1415 while (var
[i
] != NULL
)
1417 locale
= getenv (var
[i
]);
1418 if (locale
!= NULL
&& locale
[0] != '\0')
1426 return g_strdup (locale
);
1429 /* --------------------------------------------------------------------------------------------- */
1432 * The "profile root" is the tree under which all of MC's user data &
1433 * settings are stored.
1435 * It defaults to the user's home dir. The user may override this default
1436 * with the environment variable $MC_PROFILE_ROOT.
1439 mc_get_profile_root (void)
1441 static const char *profile_root
= NULL
;
1443 if (profile_root
== NULL
)
1445 profile_root
= g_getenv ("MC_PROFILE_ROOT");
1446 if (profile_root
== NULL
|| *profile_root
== '\0')
1447 profile_root
= mc_config_get_home_dir ();
1450 return profile_root
;
1453 /* --------------------------------------------------------------------------------------------- */
1455 * Propagate error in simple way.
1457 * @param dest error return location
1458 * @param code error code
1459 * @param format printf()-style format for error message
1460 * @param ... parameters for message format
1464 mc_propagate_error (GError
** dest
, int code
, const char *format
, ...)
1466 if (dest
!= NULL
&& *dest
== NULL
)
1471 va_start (args
, format
);
1472 tmp_error
= g_error_new_valist (MC_ERROR
, code
, format
, args
);
1475 g_propagate_error (dest
, tmp_error
);
1479 /* --------------------------------------------------------------------------------------------- */
1481 * Replace existing error in simple way.
1483 * @param dest error return location
1484 * @param code error code
1485 * @param format printf()-style format for error message
1486 * @param ... parameters for message format
1490 mc_replace_error (GError
** dest
, int code
, const char *format
, ...)
1497 va_start (args
, format
);
1498 tmp_error
= g_error_new_valist (MC_ERROR
, code
, format
, args
);
1501 g_error_free (*dest
);
1503 g_propagate_error (dest
, tmp_error
);
1507 /* --------------------------------------------------------------------------------------------- */
1510 * Returns if the given duration has elapsed since the given timestamp,
1511 * and if it has then updates the timestamp.
1513 * @param timestamp the last timestamp in microseconds, updated if the given time elapsed
1514 * @param deleay amount of time in microseconds
1516 * @return TRUE if clock skew detected, FALSE otherwise
1519 mc_time_elapsed (guint64
* timestamp
, guint64 delay
)
1523 now
= mc_timer_elapsed (mc_global
.timer
);
1525 if (now
>= *timestamp
&& now
< *timestamp
+ delay
)
1532 /* --------------------------------------------------------------------------------------------- */