4 Copyright (C) 1994-2016
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 while (p
>= y
&& (isalpha ((unsigned char) *p
) || (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 units_iec
[] = { N_("B"), N_("KiB"), N_("MiB"), N_("GiB"), N_("TiB"),
453 N_("PiB"), N_("EiB"), N_("ZiB"), N_("YiB"), NULL
};
454 static const char *const units_si
[] = { N_("B"), N_("kB"), N_("MB"), N_("GB"), N_("TB"),
455 N_("PB"), N_("EB"), N_("ZB"), N_("YB"), NULL
};
458 const char *const *sfx
= use_si
? units_si
: units_iec
;
463 #if SIZEOF_UINTMAX_T == 8
464 /* 20 decimal digits are required to represent 8 bytes */
468 /* 10 decimal digits are required to represent 4 bytes */
474 * recalculate from 1024 base to 1000 base if units>0
475 * We can't just multiply by 1024 - that might cause overflow
476 * if uintmax_t type is too small
479 for (j
= 0; j
< units
; j
++)
481 uintmax_t size_remain
;
483 size_remain
= ((size
% 125) * 1024) / 1000; /* size mod 125, recalculated */
484 size
/= 125; /* 128/125 = 1024/1000 */
485 size
*= 128; /* This will convert size from multiple of 1024 to multiple of 1000 */
486 size
+= size_remain
; /* Re-add remainder lost by division/multiplication */
489 for (j
= units
; sfx
[j
] != NULL
; j
++)
495 /* Empty files will print "0 B" even with minimal width. */
496 g_snprintf (buffer
, len
+ 1, "0 %s", _("B"));
500 /* Use "~KiB/kB" or just "KiB/kB" if len is 1. Use "B" for bytes. */
501 g_snprintf (buffer
, len
+ 1, (len
> 1) ? "~%s" : "%s",
502 (j
> 1) ? _(sfx
[j
- 1]) : _("B"));
508 * Offset calculation: 1 for space + 2*3 bytes for scaled units as multibyte
509 * encoding with UTF-8 for non-Latin scripts.
511 if (size
< power10
[len
- (1 + 6)])
513 g_snprintf (buffer
, len
+ 1, "%" PRIuMAX
" %s", size
, _(sfx
[j
]));
517 /* Powers of 1000 or 1024, with rounding. */
519 size
= (size
+ 500) / 1000;
521 size
= (size
+ 512) >> 10;
525 /* --------------------------------------------------------------------------------------------- */
528 string_perm (mode_t mode_bits
)
530 static char mode
[11];
532 strcpy (mode
, "----------");
533 if (S_ISDIR (mode_bits
))
535 if (S_ISCHR (mode_bits
))
537 if (S_ISBLK (mode_bits
))
539 if (S_ISLNK (mode_bits
))
541 if (S_ISFIFO (mode_bits
))
543 if (S_ISNAM (mode_bits
))
545 if (S_ISSOCK (mode_bits
))
547 if (S_ISDOOR (mode_bits
))
549 if (ismode (mode_bits
, S_IXOTH
))
551 if (ismode (mode_bits
, S_IWOTH
))
553 if (ismode (mode_bits
, S_IROTH
))
555 if (ismode (mode_bits
, S_IXGRP
))
557 if (ismode (mode_bits
, S_IWGRP
))
559 if (ismode (mode_bits
, S_IRGRP
))
561 if (ismode (mode_bits
, S_IXUSR
))
563 if (ismode (mode_bits
, S_IWUSR
))
565 if (ismode (mode_bits
, S_IRUSR
))
568 if (ismode (mode_bits
, S_ISUID
))
569 mode
[3] = (mode
[3] == 'x') ? 's' : 'S';
572 if (ismode (mode_bits
, S_ISGID
))
573 mode
[6] = (mode
[6] == 'x') ? 's' : 'S';
576 if (ismode (mode_bits
, S_ISVTX
))
577 mode
[9] = (mode
[9] == 'x') ? 't' : 'T';
582 /* --------------------------------------------------------------------------------------------- */
585 extension (const char *filename
)
587 const char *d
= strrchr (filename
, '.');
588 return (d
!= NULL
) ? d
+ 1 : "";
591 /* --------------------------------------------------------------------------------------------- */
594 load_mc_home_file (const char *from
, const char *filename
, char **allocated_filename
,
597 char *hintfile_base
, *hintfile
;
601 hintfile_base
= g_build_filename (from
, filename
, (char *) NULL
);
602 lang
= guess_message_value ();
604 hintfile
= g_strconcat (hintfile_base
, ".", lang
, (char *) NULL
);
605 if (!g_file_get_contents (hintfile
, &data
, length
, NULL
))
607 /* Fall back to the two-letter language code */
608 if (lang
[0] != '\0' && lang
[1] != '\0')
611 hintfile
= g_strconcat (hintfile_base
, ".", lang
, (char *) NULL
);
612 if (!g_file_get_contents (hintfile
, &data
, length
, NULL
))
615 hintfile
= hintfile_base
;
616 g_file_get_contents (hintfile_base
, &data
, length
, NULL
);
622 if (hintfile
!= hintfile_base
)
623 g_free (hintfile_base
);
625 if (allocated_filename
!= NULL
)
626 *allocated_filename
= hintfile
;
633 /* --------------------------------------------------------------------------------------------- */
636 extract_line (const char *s
, const char *top
)
638 static char tmp_line
[BUF_MEDIUM
];
641 while (*s
&& *s
!= '\n' && (size_t) (t
- tmp_line
) < sizeof (tmp_line
) - 1 && s
< top
)
647 /* --------------------------------------------------------------------------------------------- */
649 * The basename routine
653 x_basename (const char *s
)
655 const char *url_delim
, *path_sep
;
657 url_delim
= g_strrstr (s
, VFS_PATH_URL_DELIMITER
);
658 path_sep
= strrchr (s
, PATH_SEP
);
660 if (path_sep
== NULL
)
663 if (url_delim
== NULL
664 || url_delim
< path_sep
- strlen (VFS_PATH_URL_DELIMITER
)
665 || url_delim
- s
+ strlen (VFS_PATH_URL_DELIMITER
) < strlen (s
))
667 /* avoid trailing PATH_SEP, if present */
668 if (!IS_PATH_SEP (s
[strlen (s
) - 1]))
669 return (path_sep
!= NULL
) ? path_sep
+ 1 : s
;
671 while (--path_sep
> s
&& !IS_PATH_SEP (*path_sep
))
673 return (path_sep
!= s
) ? path_sep
+ 1 : s
;
676 while (--url_delim
> s
&& !IS_PATH_SEP (*url_delim
))
678 while (--url_delim
> s
&& !IS_PATH_SEP (*url_delim
))
681 return (url_delim
== s
) ? s
: url_delim
+ 1;
684 /* --------------------------------------------------------------------------------------------- */
687 unix_error_string (int error_num
)
689 static char buffer
[BUF_LARGE
];
690 gchar
*strerror_currentlocale
;
692 strerror_currentlocale
= g_locale_from_utf8 (g_strerror (error_num
), -1, NULL
, NULL
, NULL
);
693 g_snprintf (buffer
, sizeof (buffer
), "%s (%d)", strerror_currentlocale
, error_num
);
694 g_free (strerror_currentlocale
);
699 /* --------------------------------------------------------------------------------------------- */
702 skip_separators (const char *s
)
706 for (; *su
; str_cnext_char (&su
))
707 if (*su
!= ' ' && *su
!= '\t' && *su
!= ',')
713 /* --------------------------------------------------------------------------------------------- */
716 skip_numbers (const char *s
)
720 for (; *su
; str_cnext_char (&su
))
721 if (!str_isdigit (su
))
727 /* --------------------------------------------------------------------------------------------- */
729 * Remove all control sequences from the argument string. We define
730 * "control sequence", in a sort of pidgin BNF, as follows:
732 * control-seq = Esc non-'['
733 * | Esc '[' (0 or more digits or ';' or ':' or '?') (any other char)
735 * The 256-color and true-color escape sequences should allow either ';' or ':' inside as separator,
736 * actually, ':' is the more correct according to ECMA-48.
737 * Some terminal emulators (e.g. xterm, gnome-terminal) support this.
739 * Non-printable characters are also removed.
743 strip_ctrl_codes (char *s
)
745 char *w
; /* Current position where the stripped data is written */
746 char *r
; /* Current position where the original data is read */
751 for (w
= s
, r
= s
; *r
!= '\0';)
755 /* Skip the control sequence's arguments */ ;
756 /* '(' need to avoid strange 'B' letter in *Suse (if mc runs under root user) */
757 if (*(++r
) == '[' || *r
== '(')
759 /* strchr() matches trailing binary 0 */
760 while (*(++r
) != '\0' && strchr ("0123456789;:?", *r
) != NULL
)
766 * Skip xterm's OSC (Operating System Command)
767 * http://www.xfree86.org/current/ctlseqs.html
773 for (; *new_r
!= '\0'; ++new_r
)
783 if (*(new_r
+ 1) == '\\')
797 * Now we are at the last character of the sequence.
798 * Skip it unless it's binary 0.
807 n
= str_get_next_char (r
);
810 memmove (w
, r
, n
- r
);
821 /* --------------------------------------------------------------------------------------------- */
823 enum compression_type
824 get_compression_type (int fd
, const char *name
)
826 unsigned char magic
[16];
829 /* Read the magic signature */
830 if (mc_read (fd
, (char *) magic
, 4) != 4)
831 return COMPRESSION_NONE
;
833 /* GZIP_MAGIC and OLD_GZIP_MAGIC */
834 if (magic
[0] == 037 && (magic
[1] == 0213 || magic
[1] == 0236))
836 return COMPRESSION_GZIP
;
840 if (magic
[0] == 0120 && magic
[1] == 0113 && magic
[2] == 003 && magic
[3] == 004)
842 /* Read compression type */
843 mc_lseek (fd
, 8, SEEK_SET
);
844 if (mc_read (fd
, (char *) magic
, 2) != 2)
845 return COMPRESSION_NONE
;
847 /* Gzip can handle only deflated (8) or stored (0) files */
848 if ((magic
[0] != 8 && magic
[0] != 0) || magic
[1] != 0)
849 return COMPRESSION_NONE
;
851 /* Compatible with gzip */
852 return COMPRESSION_GZIP
;
855 /* PACK_MAGIC and LZH_MAGIC and compress magic */
856 if (magic
[0] == 037 && (magic
[1] == 036 || magic
[1] == 0240 || magic
[1] == 0235))
858 /* Compatible with gzip */
859 return COMPRESSION_GZIP
;
862 /* BZIP and BZIP2 files */
863 if ((magic
[0] == 'B') && (magic
[1] == 'Z') && (magic
[3] >= '1') && (magic
[3] <= '9'))
868 return COMPRESSION_BZIP
;
870 return COMPRESSION_BZIP2
;
876 /* LZ4 format - v1.5.0 - 0x184D2204 (little endian) */
877 if (magic
[0] == 0x04 && magic
[1] == 0x22 && magic
[2] == 0x4d && magic
[3] == 0x18)
878 return COMPRESSION_LZ4
;
880 if (mc_read (fd
, (char *) magic
+ 4, 2) != 2)
881 return COMPRESSION_NONE
;
886 && magic
[2] == 'I' && magic
[3] == 'P' && (magic
[4] == 0x00 || magic
[4] == 0x01))
887 return COMPRESSION_LZIP
;
889 /* Support for LZMA (only utils format with magic in header).
890 * This is the default format of LZMA utils 4.32.1 and later. */
893 && magic
[2] == 'Z' && magic
[3] == 'M' && magic
[4] == 'A' && magic
[5] == 0x00)
894 return COMPRESSION_LZMA
;
896 /* XZ compression magic */
899 && magic
[2] == 0x7A && magic
[3] == 0x58 && magic
[4] == 0x5A && magic
[5] == 0x00)
900 return COMPRESSION_XZ
;
902 str_len
= strlen (name
);
903 /* HACK: we must belive to extension of LZMA file :) ... */
904 if ((str_len
> 5 && strcmp (&name
[str_len
- 5], ".lzma") == 0) ||
905 (str_len
> 4 && strcmp (&name
[str_len
- 4], ".tlz") == 0))
906 return COMPRESSION_LZMA
;
908 return COMPRESSION_NONE
;
911 /* --------------------------------------------------------------------------------------------- */
914 decompress_extension (int type
)
918 case COMPRESSION_GZIP
:
919 return "/ugz" VFS_PATH_URL_DELIMITER
;
920 case COMPRESSION_BZIP
:
921 return "/ubz" VFS_PATH_URL_DELIMITER
;
922 case COMPRESSION_BZIP2
:
923 return "/ubz2" VFS_PATH_URL_DELIMITER
;
924 case COMPRESSION_LZIP
:
925 return "/ulz" VFS_PATH_URL_DELIMITER
;
926 case COMPRESSION_LZ4
:
927 return "/ulz4" VFS_PATH_URL_DELIMITER
;
928 case COMPRESSION_LZMA
:
929 return "/ulzma" VFS_PATH_URL_DELIMITER
;
931 return "/uxz" VFS_PATH_URL_DELIMITER
;
935 /* Should never reach this place */
936 fprintf (stderr
, "Fatal: decompress_extension called with an unknown argument\n");
940 /* --------------------------------------------------------------------------------------------- */
943 wipe_password (char *passwd
)
954 /* --------------------------------------------------------------------------------------------- */
956 * Convert "\E" -> esc character and ^x to control-x key and ^^ to ^ key
958 * @param p pointer to string
960 * @return newly allocated string
964 convert_controls (const char *p
)
966 char *valcopy
= g_strdup (p
);
969 /* Parse the escape special character */
970 for (q
= valcopy
; *p
;)
975 if ((*p
== 'e') || (*p
== 'E'))
990 char c
= (*p
| 0x20);
991 if (c
>= 'a' && c
<= 'z')
1008 /* --------------------------------------------------------------------------------------------- */
1010 * Finds out a relative path from first to second, i.e. goes as many ..
1011 * as needed up in first and then goes down using second
1015 diff_two_paths (const vfs_path_t
* vpath1
, const vfs_path_t
* vpath2
)
1017 char *p
, *q
, *r
, *s
, *buf
= NULL
;
1018 int i
, j
, prevlen
= -1, currlen
;
1019 char *my_first
= NULL
, *my_second
= NULL
;
1021 my_first
= resolve_symlinks (vpath1
);
1022 if (my_first
== NULL
)
1025 my_second
= resolve_symlinks (vpath2
);
1026 if (my_second
== NULL
)
1029 for (j
= 0; j
< 2; j
++)
1035 r
= strchr (p
, PATH_SEP
);
1036 s
= strchr (q
, PATH_SEP
);
1037 if (r
== NULL
|| s
== NULL
)
1041 if (strcmp (p
, q
) != 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 /* --------------------------------------------------------------------------------------------- */
1431 * Propagate error in simple way.
1433 * @param dest error return location
1434 * @param code error code
1435 * @param format printf()-style format for error message
1436 * @param ... parameters for message format
1440 mc_propagate_error (GError
** dest
, int code
, const char *format
, ...)
1442 if (dest
!= NULL
&& *dest
== NULL
)
1447 va_start (args
, format
);
1448 tmp_error
= g_error_new_valist (MC_ERROR
, code
, format
, args
);
1451 g_propagate_error (dest
, tmp_error
);
1455 /* --------------------------------------------------------------------------------------------- */
1457 * Replace existing error in simple way.
1459 * @param dest error return location
1460 * @param code error code
1461 * @param format printf()-style format for error message
1462 * @param ... parameters for message format
1466 mc_replace_error (GError
** dest
, int code
, const char *format
, ...)
1473 va_start (args
, format
);
1474 tmp_error
= g_error_new_valist (MC_ERROR
, code
, format
, args
);
1477 g_error_free (*dest
);
1479 g_propagate_error (dest
, tmp_error
);
1483 /* --------------------------------------------------------------------------------------------- */
1486 * Returns if the given duration has elapsed since the given timestamp,
1487 * and if it has then updates the timestamp.
1489 * @param timestamp the last timestamp in microseconds, updated if the given time elapsed
1490 * @param deleay amount of time in microseconds
1492 * @return TRUE if clock skew detected, FALSE otherwise
1495 mc_time_elapsed (guint64
* timestamp
, guint64 delay
)
1499 now
= mc_timer_elapsed (mc_global
.timer
);
1501 if (now
>= *timestamp
&& now
< *timestamp
+ delay
)
1508 /* --------------------------------------------------------------------------------------------- */