commit cb7621af57ac2abad12fa61893d00199daebdd29
from: Omar Polo <op@omarpolo.com>
date: Sat Dec 24 22:26:06 2022 UTC

iri: fix remove_dot_segments algorithm

i've misread the description in the RFC; we should copy up to, but not
including, the next '/' at the end and manually inject some '/' in some
other cases.

commit - a9eac73439353c3222a01235919b74a0ba6dc483
commit + cb7621af57ac2abad12fa61893d00199daebdd29
blob - 7b39d540f66998f673301046b1865c41164bc0d0
blob + 362ed324bf60c6a99a1d6f2c6ab318910bbaf212
--- iri.c
+++ iri.c
@@ -498,6 +498,7 @@ remove_dot_segments(struct iri *iri)
 			continue;
 		}
 		if (!strcmp(p, "/.")) {
+			*q++ = '/';
 			p += 2;
 			break;
 		}
@@ -507,6 +508,7 @@ remove_dot_segments(struct iri *iri)
 			p += 3;
 			while (q != buf && *--q != '/')
 				continue;
+			*q++ = '/';
 			continue;
 		}
 		/* D */
@@ -519,8 +521,7 @@ remove_dot_segments(struct iri *iri)
 			break;
 		}
 		/* E */
-		if ((s = strchr(p + 1, '/')) != NULL)
-			s++;
+		s = strchr(p + 1, '/');
 		while (*p && p != s && (q - buf < bufsize))
 			*q++ = *p++;
 	}