GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/tmux/cmd-set-environment.c Lines: 0 36 0.0 %
Date: 2017-11-13 Branches: 0 22 0.0 %

Line Branch Exec Source
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/* $OpenBSD: cmd-set-environment.c,v 1.22 2017/04/22 10:22:39 nicm Exp $ */
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/*
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 * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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/*
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 * Set an environment variable.
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 */
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static enum cmd_retval	cmd_set_environment_exec(struct cmd *,
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			    struct cmdq_item *);
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const struct cmd_entry cmd_set_environment_entry = {
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	.name = "set-environment",
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	.alias = "setenv",
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	.args = { "grt:u", 1, 2 },
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	.usage = "[-gru] " CMD_TARGET_SESSION_USAGE " name [value]",
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	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
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	.flags = CMD_AFTERHOOK,
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	.exec = cmd_set_environment_exec
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};
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static enum cmd_retval
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cmd_set_environment_exec(struct cmd *self, struct cmdq_item *item)
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{
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	struct args	*args = self->args;
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	struct environ	*env;
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	const char	*name, *value, *target;
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	name = args->argv[0];
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	if (*name == '\0') {
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		cmdq_error(item, "empty variable name");
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		return (CMD_RETURN_ERROR);
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	}
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	if (strchr(name, '=') != NULL) {
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		cmdq_error(item, "variable name contains =");
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		return (CMD_RETURN_ERROR);
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	}
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	if (args->argc < 2)
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		value = NULL;
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	else
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		value = args->argv[1];
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	if (args_has(self->args, 'g'))
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		env = global_environ;
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	else {
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		if (item->target.s == NULL) {
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			target = args_get(args, 't');
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			if (target != NULL)
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				cmdq_error(item, "no such session: %s", target);
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			else
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				cmdq_error(item, "no current session");
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			return (CMD_RETURN_ERROR);
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		}
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		env = item->target.s->environ;
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	}
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	if (args_has(self->args, 'u')) {
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		if (value != NULL) {
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			cmdq_error(item, "can't specify a value with -u");
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			return (CMD_RETURN_ERROR);
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		}
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		environ_unset(env, name);
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	} else if (args_has(self->args, 'r')) {
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		if (value != NULL) {
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			cmdq_error(item, "can't specify a value with -r");
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			return (CMD_RETURN_ERROR);
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		}
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		environ_clear(env, name);
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	} else {
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		if (value == NULL) {
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			cmdq_error(item, "no value specified");
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			return (CMD_RETURN_ERROR);
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		}
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		environ_set(env, name, "%s", value);
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	}
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	return (CMD_RETURN_NORMAL);
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}