commit 110104b65c5b511d6e99058e536c132ab962d863
from: Stefan Sperling <stsp@stsp.name>
date: Mon Nov 07 16:05:02 2022 UTC

fix crash in got-send-pack when server does not announce any capabilities

commit - 758dc042e8fc2399dc58d96ce6d80b4a0adf4705
commit + 110104b65c5b511d6e99058e536c132ab962d863
blob - 0e18f194406f1c8fe2f30bab9b5c8a3a3c0a6e5f
blob + e4d0f25b9ed093ef2eedaffd7a65b3d05e786a3e
--- libexec/got-send-pack/got-send-pack.c
+++ libexec/got-send-pack/got-send-pack.c
@@ -353,6 +353,13 @@ send_pack(int fd, struct got_pathlist_head *refs,
 		if (err)
 			goto done;
 		if (is_firstpkt) {
+			if (server_capabilities == NULL) {
+				server_capabilities = strdup("");
+				if (server_capabilities == NULL) {
+					err = got_error_from_errno("strdup");
+					goto done;
+				}
+			}
 			if (chattygot && server_capabilities[0] != '\0')
 				fprintf(stderr, "%s: server capabilities: %s\n",
 				    getprogname(), server_capabilities);
@@ -363,7 +370,8 @@ send_pack(int fd, struct got_pathlist_head *refs,
 				goto done;
 			if (chattygot)
 				fprintf(stderr, "%s: my capabilities:%s\n",
-				    getprogname(), my_capabilities);
+				    getprogname(),
+				    my_capabilities ? my_capabilities : "");
 			is_firstpkt = 0;
 		}
 		if (strstr(refname, "^{}")) {