commit 6a9ae707737d978bccbabdc36beae509151a7be2
from: Omar Polo <op@omarpolo.com>
date: Mon Jan 11 14:26:43 2021 UTC

remove infinite loop

commit - 3c1cf9d07cb679ba444566159538b510902f2de9
commit + 6a9ae707737d978bccbabdc36beae509151a7be2
blob - 8c020392806387e3f84ca44d08d68c89abba42e9
blob + 1901dacc40fcb2989ebb0fb7fd604756a49d7045
--- iri.c
+++ iri.c
@@ -209,8 +209,8 @@ path_clean(char *path)
 
 	/* 2. eliminate each . path name element */
 	for (i = path; *i; ++i) {
-		if ((i == path || *i == '/') && *(i+1) == '.' &&
-		    *(i+2) == '/') {
+		if ((i == path || *i == '/') &&
+		    *i != '.' && i[1] == '.' && i[2] == '/') {
 			/* move also the \0 */
 			memmove(i, i+2, strlen(i)-1);
 			i--;
blob - 6200cb7422181a3280a9e6b9e1ab5cd96ebd0f93
blob + 18a102039c98f6227da39ab5bdb7dbc3b7ff8b3c
--- iri_test.c
+++ iri_test.c
@@ -153,6 +153,10 @@ main(void)
 	    FAIL,
             empty,
 	    "reject paths that would escape the root");
+	TEST("gemini://omarpolo.com/foo/../../",
+	    FAIL,
+            empty,
+	    "reject paths that would escape the root")
 	TEST("gemini://omarpolo.com/foo/../foo/../././/bar/baz/.././.././/",
 	    PASS,
             IRI("gemini", "omarpolo.com", "", "", "", ""),