commit 245a86c365a3d921a0ac2157809060c52925d619
from: Omar Polo <op@omarpolo.com>
date: Sat Dec 24 19:11:54 2022 UTC

iri: avoid unpleasant infinite loop in remove_dot_segments

need to copy until the *next* path segment, otherwise we loop
indefinitely if *p == '/'.

commit - f5bc8482f4f41abd20e767dd613fc323713f3820
commit + 245a86c365a3d921a0ac2157809060c52925d619
blob - 152a34c6023838c2691b4cd1052849df3caeeccb
blob + c519730b00527490ead2d9c69c73074293ad25df
--- iri.c
+++ iri.c
@@ -472,7 +472,7 @@ cpfields(struct iri *dest, const struct iri *src, int 
 static inline int
 remove_dot_segments(struct iri *iri)
 {
-	char		*p, *q, *buf;
+	char		*p, *q, *buf, *s;
 	ptrdiff_t	 bufsize;
 
 	buf = p = q = iri->iri_path;
@@ -516,7 +516,8 @@ remove_dot_segments(struct iri *iri)
 			break;
 		}
 		/* E */
-		while (*p && *p != '/' && (q - buf < bufsize))
+		s = strchr(p + 1, '/');
+		while (*p && p != s && (q - buf < bufsize))
 			*q++ = *p++;
 	}