mdocml: Fix parsing of PATH_INFO if both a section directory and an

[schwarze@mdocml.bsd.lv]

Log Message:
-----------
Fix parsing of PATH_INFO if both a section directory and an 
architecture subdirectory are specified.  Issue reported by tb@.

Modified Files:
--------------
    mdocml:
        cgi.c

Revision Data
-------------
Index: cgi.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/cgi.c,v
retrieving revision 1.126
retrieving revision 1.127
diff -Lcgi.c -Lcgi.c -u -p -r1.126 -r1.127
--- cgi.c
+++ cgi.c
@@ -1085,7 +1085,7 @@ main(void)
 static void
 path_parse(struct req *req, const char *path)
 {
-	int	 dir_done;
+	char	*dir;
 
 	req->isquery = 0;
 	req->q.equal = 1;
@@ -1115,23 +1115,19 @@ path_parse(struct req *req, const char *
 	req->q.query = mandoc_strdup(req->q.query);
 
 	/* Optional architecture. */
-	dir_done = 0;
-	for (;;) {
-		if ((req->q.arch = strrchr(req->q.manpath, '/')) == NULL)
-			break;
-		*req->q.arch++ = '\0';
-		if (dir_done || strncmp(req->q.arch, "man", 3)) {
-			req->q.arch = mandoc_strdup(req->q.arch);
-			break;
-		}
-
-		/* Optional directory name. */
-		req->q.arch += 3;
-		if (*req->q.arch != '\0') {
-			free(req->q.sec);
-			req->q.sec = mandoc_strdup(req->q.arch);
-		}
-		dir_done = 1;
+	dir = strrchr(req->q.manpath, '/');
+	if (dir != NULL && strncmp(dir + 1, "man", 3) != 0) {
+		*dir++ = '\0';
+		req->q.arch = mandoc_strdup(dir);
+		dir = strrchr(req->q.manpath, '/');
+	} else
+		req->q.arch = NULL;
+
+	/* Optional directory name. */
+	if (dir != NULL && strncmp(dir + 1, "man", 3) == 0) {
+		*dir++ = '\0';
+		free(req->q.sec);
+		req->q.sec = mandoc_strdup(dir + 3);
 	}
 }
 
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