hjn_hyphen_load_file patch for sandboxing by Pawel Hajdan

ChangeLog

@@ -1,3 +1,9 @@
+2013-03-18 László Németh <nemeth at numbertext dot org>:
+	* Makefile.am, Makefile.in: set -version-info
+
+2013-03-12 Paweł Hajdan <phajdan at google>:
+	* hyphen.h, hyphen.c: add hnj_hyphen_load_file() for sandboxing
+
 2012-09-13 László Németh <nemeth at numbertext dot org>:
 	* hyphen.c: fdo#43931: removing hard hyphen hyphenation for LibreOffice
 	

Makefile.am

@@ -2,7 +2,7 @@ SUBDIRS= doc tests
 
 lib_LTLIBRARIES = libhyphen.la
 libhyphen_la_SOURCES = hnjalloc.c hyphen.c
-libhyphen_la_LDFLAGS = -version-info 2:1:2
+libhyphen_la_LDFLAGS = -version-info 3:0:3
 include_HEADERS = hyphen.h
 noinst_HEADERS = hnjalloc.h
 

Makefile.in

@@ -288,7 +288,7 @@ top_srcdir = @top_srcdir@
 SUBDIRS = doc tests
 lib_LTLIBRARIES = libhyphen.la
 libhyphen_la_SOURCES = hnjalloc.c hyphen.c
-libhyphen_la_LDFLAGS = -version-info 2:1:2
+libhyphen_la_LDFLAGS = -version-info 3:0:3
 include_HEADERS = hyphen.h
 noinst_HEADERS = hnjalloc.h
 substrings_SOURCES = substrings.c

hyphen.c

@@ -373,20 +373,29 @@ void hnj_hyphen_load_line(char * buf, HyphenDict * dict, HashTab * hashtab) {
 
 HyphenDict *
 hnj_hyphen_load (const char *fn)
+{
+  HyphenDict *result;
+  FILE *f;
+  f = fopen (fn, "r");
+  if (f == NULL)
+    return NULL;
+
+  result = hnj_hyphen_load_file(f);
+
+  fclose(f);
+  return result;
+}
+
+HyphenDict *
+hnj_hyphen_load_file (FILE *f)
 {
   HyphenDict *dict[2];
   HashTab *hashtab;
-  FILE *f;
   char buf[MAX_CHARS];
   int nextlevel = 0;
   int i, j, k;
   HashEntry *e;
   int state_num = 0;
-
-  f = fopen (fn, "r");
-  if (f == NULL)
-    return NULL;
-
 // loading one or two dictionaries (separated by NEXTLEVEL keyword)
 for (k = 0; k < 2; k++) { 
   hashtab = hnj_hash_new ();
@@ -497,7 +506,6 @@ for (k = 0; k < 2; k++) {
 #endif
   state_num = 0;
 }
-  fclose(f);
   if (nextlevel) dict[0]->nextlevel = dict[1];
   else {
     dict[1] -> nextlevel = dict[0];

hyphen.h

@@ -94,6 +94,7 @@ struct _HyphenTrans {
 };
 
 HyphenDict *hnj_hyphen_load (const char *fn);
+HyphenDict *hnj_hyphen_load_file (FILE *f);
 void hnj_hyphen_free (HyphenDict *dict);
 
 /* obsolete, use hnj_hyphen_hyphenate2() or *hyphenate3() functions) */