Return to cmd-set-environment.c CVS log

Up to [local] / src / usr.bin / tmux

Annotation of src/usr.bin/tmux/cmd-set-environment.c, Revision 1.26

1.26    ! nicm        1: /* $OpenBSD: cmd-set-environment.c,v 1.25 2020/04/13 10:59:58 nicm Exp $ */
1.1       nicm        2:
                      3: /*
1.17      nicm        4:  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1       nicm        5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
                     19: #include <sys/types.h>
                     20:
                     21: #include <stdlib.h>
                     22: #include <string.h>
                     23:
                     24: #include "tmux.h"
                     25:
                     26: /*
                     27:  * Set an environment variable.
                     28:  */
                     29:
1.21      nicm       30: static enum cmd_retval cmd_set_environment_exec(struct cmd *,
                     31:                            struct cmdq_item *);
1.1       nicm       32:
                     33: const struct cmd_entry cmd_set_environment_entry = {
1.14      nicm       34:        .name = "set-environment",
                     35:        .alias = "setenv",
                     36:
1.26    ! nicm       37:        .args = { "Fhgrt:u", 1, 2 },
        !            38:        .usage = "[-Fhgru] " CMD_TARGET_SESSION_USAGE " name [value]",
1.14      nicm       39:
1.22      nicm       40:        .target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
1.15      nicm       41:
1.20      nicm       42:        .flags = CMD_AFTERHOOK,
1.14      nicm       43:        .exec = cmd_set_environment_exec
1.1       nicm       44: };
                     45:
1.19      nicm       46: static enum cmd_retval
1.21      nicm       47: cmd_set_environment_exec(struct cmd *self, struct cmdq_item *item)
1.1       nicm       48: {
1.25      nicm       49:        struct args             *args = cmd_get_args(self);
                     50:        struct cmd_find_state   *target = cmdq_get_target(item);
                     51:        struct environ          *env;
                     52:        const char              *name, *value, *tflag;
1.26    ! nicm       53:        char                    *expand = NULL;
        !            54:        enum cmd_retval          retval = CMD_RETURN_NORMAL;
1.1       nicm       55:
1.4       nicm       56:        name = args->argv[0];
                     57:        if (*name == '\0') {
1.21      nicm       58:                cmdq_error(item, "empty variable name");
1.6       nicm       59:                return (CMD_RETURN_ERROR);
1.1       nicm       60:        }
1.4       nicm       61:        if (strchr(name, '=') != NULL) {
1.21      nicm       62:                cmdq_error(item, "variable name contains =");
1.6       nicm       63:                return (CMD_RETURN_ERROR);
1.1       nicm       64:        }
                     65:
1.7       okan       66:        if (args->argc < 2)
1.4       nicm       67:                value = NULL;
1.26    ! nicm       68:        else if (args_has(args, 'F'))
        !            69:                value = expand = format_single_from_target(item, args->argv[1]);
1.4       nicm       70:        else
                     71:                value = args->argv[1];
                     72:
1.24      nicm       73:        if (args_has(args, 'g'))
1.11      nicm       74:                env = global_environ;
1.18      nicm       75:        else {
1.25      nicm       76:                if (target->s == NULL) {
                     77:                        tflag = args_get(args, 't');
                     78:                        if (tflag != NULL)
                     79:                                cmdq_error(item, "no such session: %s", tflag);
1.18      nicm       80:                        else
1.21      nicm       81:                                cmdq_error(item, "no current session");
1.26    ! nicm       82:                        retval = CMD_RETURN_ERROR;
        !            83:                        goto out;
1.18      nicm       84:                }
1.25      nicm       85:                env = target->s->environ;
1.18      nicm       86:        }
1.1       nicm       87:
1.24      nicm       88:        if (args_has(args, 'u')) {
1.4       nicm       89:                if (value != NULL) {
1.21      nicm       90:                        cmdq_error(item, "can't specify a value with -u");
1.26    ! nicm       91:                        retval = CMD_RETURN_ERROR;
        !            92:                        goto out;
1.1       nicm       93:                }
1.4       nicm       94:                environ_unset(env, name);
1.24      nicm       95:        } else if (args_has(args, 'r')) {
1.4       nicm       96:                if (value != NULL) {
1.21      nicm       97:                        cmdq_error(item, "can't specify a value with -r");
1.26    ! nicm       98:                        retval = CMD_RETURN_ERROR;
        !            99:                        goto out;
1.1       nicm      100:                }
1.12      nicm      101:                environ_clear(env, name);
1.1       nicm      102:        } else {
1.4       nicm      103:                if (value == NULL) {
1.21      nicm      104:                        cmdq_error(item, "no value specified");
1.26    ! nicm      105:                        retval = CMD_RETURN_ERROR;
        !           106:                        goto out;
1.1       nicm      107:                }
1.26    ! nicm      108:
1.23      nicm      109:                if (args_has(args, 'h'))
                    110:                        environ_set(env, name, ENVIRON_HIDDEN, "%s", value);
                    111:                else
                    112:                        environ_set(env, name, 0, "%s", value);
1.1       nicm      113:        }
                    114:
1.26    ! nicm      115: out:
        !           116:        free(expand);
        !           117:        return (retval);
1.1       nicm      118: }