1 /* Log file output.
2    Copyright (C) 2003, 2005 Free Software Foundation, Inc.
3 
4    This program is free software; you can redistribute it and/or modify it
5    under the terms of the GNU Library General Public License as published
6    by the Free Software Foundation; either version 2, or (at your option)
7    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 GNU
12    Library General Public License for more details.
13 
14    You should have received a copy of the GNU Library General Public
15    License along with this program; if not, write to the Free Software
16    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17    USA.  */
18 
19 /* Written by Bruno Haible <bruno@clisp.org>.  */
20 
21 #ifdef HAVE_CONFIG_H
22 # include <config.h>
23 #endif
24 
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 
29 /* Handle multi-threaded applications.  */
30 #ifdef _LIBC
31 # include <bits/libc-lock.h>
32 #else
33 # include "lock.h"
34 #endif
35 
36 /* Print an ASCII string with quotes and escape sequences where needed.  */
37 static void
print_escaped(FILE * stream,const char * str)38 print_escaped (FILE *stream, const char *str)
39 {
40   putc ('"', stream);
41   for (; *str != '\0'; str++)
42     if (*str == '\n')
43       {
44 	fputs ("\\n\"", stream);
45 	if (str[1] == '\0')
46 	  return;
47 	fputs ("\n\"", stream);
48       }
49     else
50       {
51 	if (*str == '"' || *str == '\\')
52 	  putc ('\\', stream);
53 	putc (*str, stream);
54       }
55   putc ('"', stream);
56 }
57 
58 static char *last_logfilename = NULL;
59 static FILE *last_logfile = NULL;
__libc_lock_define_initialized(static,lock)60 __libc_lock_define_initialized (static, lock)
61 
62 static inline void
63 _nl_log_untranslated_locked (const char *logfilename, const char *domainname,
64 			     const char *msgid1, const char *msgid2, int plural)
65 {
66   FILE *logfile;
67 
68   /* Can we reuse the last opened logfile?  */
69   if (last_logfilename == NULL || strcmp (logfilename, last_logfilename) != 0)
70     {
71       /* Close the last used logfile.  */
72       if (last_logfilename != NULL)
73 	{
74 	  if (last_logfile != NULL)
75 	    {
76 	      fclose (last_logfile);
77 	      last_logfile = NULL;
78 	    }
79 	  free (last_logfilename);
80 	  last_logfilename = NULL;
81 	}
82       /* Open the logfile.  */
83       last_logfilename = (char *) malloc (strlen (logfilename) + 1);
84       if (last_logfilename == NULL)
85 	return;
86       strcpy (last_logfilename, logfilename);
87       last_logfile = fopen (logfilename, "a");
88       if (last_logfile == NULL)
89 	return;
90     }
91   logfile = last_logfile;
92 
93   fprintf (logfile, "domain ");
94   print_escaped (logfile, domainname);
95   fprintf (logfile, "\nmsgid ");
96   print_escaped (logfile, msgid1);
97   if (plural)
98     {
99       fprintf (logfile, "\nmsgid_plural ");
100       print_escaped (logfile, msgid2);
101       fprintf (logfile, "\nmsgstr[0] \"\"\n");
102     }
103   else
104     fprintf (logfile, "\nmsgstr \"\"\n");
105   putc ('\n', logfile);
106 }
107 
108 /* Add to the log file an entry denoting a failed translation.  */
109 void
_nl_log_untranslated(const char * logfilename,const char * domainname,const char * msgid1,const char * msgid2,int plural)110 _nl_log_untranslated (const char *logfilename, const char *domainname,
111 		      const char *msgid1, const char *msgid2, int plural)
112 {
113   __libc_lock_lock (lock);
114   _nl_log_untranslated_locked (logfilename, domainname, msgid1, msgid2, plural);
115   __libc_lock_unlock (lock);
116 }
117