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diff -ur gv-3.5.8.orig/source/file.c gv-3.5.8/source/file.c
--- gv-3.5.8.orig/source/file.c 1997-06-07 00:00:00.000000000 +0200
+++ gv-3.5.8/source/file.c 2002-09-26 23:56:00.000000000 +0200
@@ -285,6 +285,22 @@
}
/*############################################################*/
+/* file_nameIsDangerous */
+/*############################################################*/
+
+char *file_charsAllowedInName = "+,-./:=@\\^_";
+
+int
+file_nameIsDangerous(fn)
+ char *fn;
+{
+ for (; *fn; fn++)
+ if (!isalnum(*fn) && !strchr(file_charsAllowedInName, *fn))
+ return(1);
+ return(0);
+}
+
+/*############################################################*/
/* file_pdfname2psname */
/* If the file ends in .pdf, change this to .ps.*/
/* Return pointer to temp copy if changed, else to input string. */
diff -ur gv-3.5.8.orig/source/file.h gv-3.5.8/source/file.h
--- gv-3.5.8.orig/source/file.h 1997-04-26 00:00:00.000000000 +0200
+++ gv-3.5.8/source/file.h 2002-09-26 23:28:38.000000000 +0200
@@ -70,6 +70,14 @@
#endif
);
+extern char *file_charsAllowedInName;
+
+extern int file_nameIsDangerous (
+#if NeedFunctionPrototypes
+ char *
+#endif
+);
+
extern char* file_pdfname2psname (
#if NeedFunctionPrototypes
char * /* name */
diff -ur gv-3.5.8.orig/source/ps.c gv-3.5.8/source/ps.c
--- gv-3.5.8.orig/source/ps.c 1997-06-07 00:00:00.000000000 +0200
+++ gv-3.5.8/source/ps.c 2002-09-27 00:29:35.000000000 +0200
@@ -420,6 +420,16 @@
char cmd[512];
char s[512];
filename_unc=file_getTmpFilename(NULL,filename_raw);
+ if (file_nameIsDangerous(filename))
+ {
+ INFMESSAGE(the filename is dangerous)
+ sprintf(s, "The filename \"%s\" is dangerous: only alphanumeric "
+ "characters and \"%s\" are allowed.\n",
+ filename, file_charsAllowedInName);
+ NotePopupShowMessage(s);
+ ENDMESSAGE(psscan)
+ return(NULL);
+ }
sprintf(cmd,cmd_uncompress,filename,filename_unc);
INFMESSAGE(is compressed)
INFSMESSAGE(uncompress command,cmd)
@@ -491,6 +501,16 @@
char cmd[512];
char s[512];
filename_dsc=file_getTmpFilename(NULL,filename_raw);
+ if (file_nameIsDangerous(filename))
+ {
+ INFMESSAGE(the filename is dangerous)
+ sprintf(s, "The filename \"%s\" is dangerous: only alphanumeric "
+ "characters and \"%s\" are allowed.\n",
+ filename, file_charsAllowedInName);
+ NotePopupShowMessage(s);
+ ENDMESSAGE(psscan)
+ return(NULL);
+ }
sprintf(cmd,cmd_scan_pdf,filename,filename_dsc);
INFMESSAGE(is PDF)
INFSMESSAGE(scan command,cmd)
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