cp_unqoute(), avoid segfault when applied to a single quote "\""

ChangeLog

@@ -1,7 +1,18 @@
+2010-09-19  Robert Larice
+ * src/frontend/quote.c :
+    cp_unqoute(), avoid segfault when applied to a single quote "\""
+    testcase:
+      .control
+      echo "--"
+      .endc
+    FIXME, still not completely done,
+      inp_stripcomments_line()
+    will fail on comments inside of strings
+
 2010-09-19 Holger Vogt
  * src/spinit.in, configure.ac: allow lib64 in spinit (bug no. 3054424)
    if libdir contains lib64
- * compile_min.sh: new script for compiling MINGW 32 and 64 bit  
+ * compile_min.sh: new script for compiling MINGW 32 and 64 bit
 
 2010-09-18 Holger Vogt
  * src/XSPICE/icm/makedefs.in: external LDFLAGS enabled for MINGW

src/frontend/quote.c

@@ -81,7 +81,7 @@ cp_unquote(char *string)
 	l = strlen(string);
 	s = (char*) MALLOC(l+1);
 	
-	if (*string == '"' && string[l-1] == '"') {
+	if (l>=2 && *string == '"' && string[l-1] == '"') {
 	    strncpy(s,string+1,l-2);
 	    s[l-2] = '\0';
 	} else