upstream: allow ssh_config SetEnv to override $TERM, which is otherwise

handled specially by the protocol. Useful in ~/.ssh/config to set TERM to
something generic (e.g. "xterm" instead of "xterm-256color") for destinations
that lack terminfo entries. feedback and ok dtucker@

OpenBSD-Commit-ID: 38b1ef4d5bc159c7d9d589d05e3017433e2d5758

1 files changed, 16 insertions, 1 deletions

diff --git a/misc.c b/misc.c
index 36f26ccb..78fb1e00 100644
--- a/misc.c
+++ b/misc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.c,v 1.164 2021/04/03 06:18:40 djm Exp $ */
+/* $OpenBSD: misc.c,v 1.165 2021/06/04 05:02:40 djm Exp $ */
 /*
  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
  * Copyright (c) 2005-2020 Damien Miller.  All rights reserved.
@@ -2671,3 +2671,18 @@ subprocess(const char *tag, const char *command,
 		*child = f;
 	return pid;
 }
+
+const char *
+lookup_env_in_list(const char *env, char * const *envs, size_t nenvs)
+{
+	size_t i, envlen;
+
+	envlen = strlen(env);
+	for (i = 0; i < nenvs; i++) {
+		if (strncmp(envs[i], env, envlen) == 0 &&
+		    envs[i][envlen] == '=') {
+			return envs[i] + envlen + 1;
+		}
+	}
+	return NULL;
+}