From fa5845db13c5cc87a03062fedf5d9cc237d14604 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 05:34:38 +0200
Subject: Adding upstream version 3.3a.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 cmd-set-environment.c | 119 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 cmd-set-environment.c

(limited to 'cmd-set-environment.c')

diff --git a/cmd-set-environment.c b/cmd-set-environment.c
new file mode 100644
index 0000000..cec1f3e
--- /dev/null
+++ b/cmd-set-environment.c
@@ -0,0 +1,119 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "tmux.h"
+
+/*
+ * Set an environment variable.
+ */
+
+static enum cmd_retval	cmd_set_environment_exec(struct cmd *,
+			    struct cmdq_item *);
+
+const struct cmd_entry cmd_set_environment_entry = {
+	.name = "set-environment",
+	.alias = "setenv",
+
+	.args = { "Fhgrt:u", 1, 2, NULL },
+	.usage = "[-Fhgru] " CMD_TARGET_SESSION_USAGE " name [value]",
+
+	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
+
+	.flags = CMD_AFTERHOOK,
+	.exec = cmd_set_environment_exec
+};
+
+static enum cmd_retval
+cmd_set_environment_exec(struct cmd *self, struct cmdq_item *item)
+{
+	struct args		*args = cmd_get_args(self);
+	struct cmd_find_state	*target = cmdq_get_target(item);
+	struct environ		*env;
+	const char		*name = args_string(args, 0), *value;
+	const char		*tflag;
+	char			*expanded = NULL;
+	enum cmd_retval		 retval = CMD_RETURN_NORMAL;
+
+	if (*name == '\0') {
+		cmdq_error(item, "empty variable name");
+		return (CMD_RETURN_ERROR);
+	}
+	if (strchr(name, '=') != NULL) {
+		cmdq_error(item, "variable name contains =");
+		return (CMD_RETURN_ERROR);
+	}
+
+	if (args_count(args) < 2)
+		value = NULL;
+	else
+		value = args_string(args, 1);
+	if (value != NULL && args_has(args, 'F')) {
+		expanded = format_single_from_target(item, value);
+		value = expanded;
+	}
+	if (args_has(args, 'g'))
+		env = global_environ;
+	else {
+		if (target->s == NULL) {
+			tflag = args_get(args, 't');
+			if (tflag != NULL)
+				cmdq_error(item, "no such session: %s", tflag);
+			else
+				cmdq_error(item, "no current session");
+			retval = CMD_RETURN_ERROR;
+			goto out;
+		}
+		env = target->s->environ;
+	}
+
+	if (args_has(args, 'u')) {
+		if (value != NULL) {
+			cmdq_error(item, "can't specify a value with -u");
+			retval = CMD_RETURN_ERROR;
+			goto out;
+		}
+		environ_unset(env, name);
+	} else if (args_has(args, 'r')) {
+		if (value != NULL) {
+			cmdq_error(item, "can't specify a value with -r");
+			retval = CMD_RETURN_ERROR;
+			goto out;
+		}
+		environ_clear(env, name);
+	} else {
+		if (value == NULL) {
+			cmdq_error(item, "no value specified");
+			retval = CMD_RETURN_ERROR;
+			goto out;
+		}
+
+		if (args_has(args, 'h'))
+			environ_set(env, name, ENVIRON_HIDDEN, "%s", value);
+		else
+			environ_set(env, name, 0, "%s", value);
+	}
+
+out:
+	free(expanded);
+	return (retval);
+}
-- 
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