1 /* Log file output.
2 Copyright (C) 2003, 2005, 2009 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 /* Written by Bruno Haible <bruno@clisp.org>. */
18
19 #ifdef HAVE_CONFIG_H
20 # include <config.h>
21 #endif
22
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <string.h>
26
27 /* Handle multi-threaded applications. */
28 #ifdef _LIBC
29 # include <bits/libc-lock.h>
30 #else
31 # include "lock.h"
32 #endif
33
34 /* Separator between msgctxt and msgid in .mo files. */
35 #define MSGCTXT_SEPARATOR '\004' /* EOT */
36
37 /* Print an ASCII string with quotes and escape sequences where needed. */
38 static void
print_escaped(FILE * stream,const char * str,const char * str_end)39 print_escaped (FILE *stream, const char *str, const char *str_end)
40 {
41 putc ('"', stream);
42 for (; str != str_end; str++)
43 if (*str == '\n')
44 {
45 fputs ("\\n\"", stream);
46 if (str + 1 == str_end)
47 return;
48 fputs ("\n\"", stream);
49 }
50 else
51 {
52 if (*str == '"' || *str == '\\')
53 putc ('\\', stream);
54 putc (*str, stream);
55 }
56 putc ('"', stream);
57 }
58
59 static char *last_logfilename = NULL;
60 static FILE *last_logfile = NULL;
__libc_lock_define_initialized(static,lock)61 __libc_lock_define_initialized (static, lock)
62
63 static inline void
64 _nl_log_untranslated_locked (const char *logfilename, const char *domainname,
65 const char *msgid1, const char *msgid2, int plural)
66 {
67 FILE *logfile;
68 const char *separator;
69
70 /* Can we reuse the last opened logfile? */
71 if (last_logfilename == NULL || strcmp (logfilename, last_logfilename) != 0)
72 {
73 /* Close the last used logfile. */
74 if (last_logfilename != NULL)
75 {
76 if (last_logfile != NULL)
77 {
78 fclose (last_logfile);
79 last_logfile = NULL;
80 }
81 free (last_logfilename);
82 last_logfilename = NULL;
83 }
84 /* Open the logfile. */
85 last_logfilename = (char *) malloc (strlen (logfilename) + 1);
86 if (last_logfilename == NULL)
87 return;
88 strcpy (last_logfilename, logfilename);
89 last_logfile = fopen (logfilename, "a");
90 if (last_logfile == NULL)
91 return;
92 }
93 logfile = last_logfile;
94
95 fprintf (logfile, "domain ");
96 print_escaped (logfile, domainname, domainname + strlen (domainname));
97 separator = strchr (msgid1, MSGCTXT_SEPARATOR);
98 if (separator != NULL)
99 {
100 /* The part before the MSGCTXT_SEPARATOR is the msgctxt. */
101 fprintf (logfile, "\nmsgctxt ");
102 print_escaped (logfile, msgid1, separator);
103 msgid1 = separator + 1;
104 }
105 fprintf (logfile, "\nmsgid ");
106 print_escaped (logfile, msgid1, msgid1 + strlen (msgid1));
107 if (plural)
108 {
109 fprintf (logfile, "\nmsgid_plural ");
110 print_escaped (logfile, msgid2, msgid2 + strlen (msgid2));
111 fprintf (logfile, "\nmsgstr[0] \"\"\n");
112 }
113 else
114 fprintf (logfile, "\nmsgstr \"\"\n");
115 putc ('\n', logfile);
116 }
117
118 /* Add to the log file an entry denoting a failed translation. */
119 void
_nl_log_untranslated(const char * logfilename,const char * domainname,const char * msgid1,const char * msgid2,int plural)120 _nl_log_untranslated (const char *logfilename, const char *domainname,
121 const char *msgid1, const char *msgid2, int plural)
122 {
123 __libc_lock_lock (lock);
124 _nl_log_untranslated_locked (logfilename, domainname, msgid1, msgid2, plural);
125 __libc_lock_unlock (lock);
126 }
127