/* $OpenBSD: cmd-set-environment.c,v 1.2 2009/08/11 12:53:37 nicm Exp $ */ /* * Copyright (c) 2009 Nicholas Marriott * * 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 #include #include #include "tmux.h" /* * Set an environment variable. */ int cmd_set_environment_exec(struct cmd *, struct cmd_ctx *); const struct cmd_entry cmd_set_environment_entry = { "set-environment", "setenv", "[-gru] " CMD_TARGET_SESSION_USAGE " name [value]", CMD_ARG12, CMD_CHFLAG('g')|CMD_CHFLAG('r')|CMD_CHFLAG('u'), NULL, cmd_target_parse, cmd_set_environment_exec, cmd_target_free, cmd_target_print }; int cmd_set_environment_exec(struct cmd *self, struct cmd_ctx *ctx) { struct cmd_target_data *data = self->data; struct session *s; struct environ *env; if (*data->arg == '\0') { ctx->error(ctx, "empty variable name"); return (-1); } if (strchr(data->arg, '=') != NULL) { ctx->error(ctx, "variable name contains ="); return (-1); } if (data->chflags & CMD_CHFLAG('g')) env = &global_environ; else { if ((s = cmd_find_session(ctx, data->target)) == NULL) return (-1); env = &s->environ; } if (data->chflags & CMD_CHFLAG('u')) { if (data->arg2 != NULL) { ctx->error(ctx, "can't specify a value with -u"); return (-1); } environ_unset(env, data->arg); } else if (data->chflags & CMD_CHFLAG('r')) { if (data->arg2 != NULL) { ctx->error(ctx, "can't specify a value with -r"); return (-1); } environ_set(env, data->arg, NULL); } else { if (data->arg2 == NULL) { ctx->error(ctx, "no value specified"); return (-1); } environ_set(env, data->arg, data->arg2); } return (0); }