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 1.8

1.8     ! nicm        1: /* $OpenBSD: cmd-set-environment.c,v 1.7 2012/10/31 19:11:18 okan Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
                      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:
1.8     ! nicm       30: enum cmd_retval         cmd_set_environment_exec(struct cmd *, struct cmd_q *);
1.1       nicm       31:
                     32: const struct cmd_entry cmd_set_environment_entry = {
                     33:        "set-environment", "setenv",
1.4       nicm       34:        "grt:u", 1, 2,
1.2       nicm       35:        "[-gru] " CMD_TARGET_SESSION_USAGE " name [value]",
1.4       nicm       36:        0,
1.1       nicm       37:        NULL,
1.4       nicm       38:        NULL,
                     39:        cmd_set_environment_exec
1.1       nicm       40: };
                     41:
1.6       nicm       42: enum cmd_retval
1.8     ! nicm       43: cmd_set_environment_exec(struct cmd *self, struct cmd_q *cmdq)
1.1       nicm       44: {
1.4       nicm       45:        struct args     *args = self->args;
                     46:        struct session  *s;
                     47:        struct environ  *env;
                     48:        const char      *name, *value;
1.1       nicm       49:
1.4       nicm       50:        name = args->argv[0];
                     51:        if (*name == '\0') {
1.8     ! nicm       52:                cmdq_error(cmdq, "empty variable name");
1.6       nicm       53:                return (CMD_RETURN_ERROR);
1.1       nicm       54:        }
1.4       nicm       55:        if (strchr(name, '=') != NULL) {
1.8     ! nicm       56:                cmdq_error(cmdq, "variable name contains =");
1.6       nicm       57:                return (CMD_RETURN_ERROR);
1.1       nicm       58:        }
                     59:
1.7       okan       60:        if (args->argc < 2)
1.4       nicm       61:                value = NULL;
                     62:        else
                     63:                value = args->argv[1];
                     64:
                     65:        if (args_has(self->args, 'g'))
1.1       nicm       66:                env = &global_environ;
                     67:        else {
1.8     ! nicm       68:                if ((s = cmd_find_session(cmdq, args_get(args, 't'), 0)) == NULL)
1.6       nicm       69:                        return (CMD_RETURN_ERROR);
1.1       nicm       70:                env = &s->environ;
                     71:        }
                     72:
1.4       nicm       73:        if (args_has(self->args, 'u')) {
                     74:                if (value != NULL) {
1.8     ! nicm       75:                        cmdq_error(cmdq, "can't specify a value with -u");
1.6       nicm       76:                        return (CMD_RETURN_ERROR);
1.1       nicm       77:                }
1.4       nicm       78:                environ_unset(env, name);
                     79:        } else if (args_has(self->args, 'r')) {
                     80:                if (value != NULL) {
1.8     ! nicm       81:                        cmdq_error(cmdq, "can't specify a value with -r");
1.6       nicm       82:                        return (CMD_RETURN_ERROR);
1.1       nicm       83:                }
1.4       nicm       84:                environ_set(env, name, NULL);
1.1       nicm       85:        } else {
1.4       nicm       86:                if (value == NULL) {
1.8     ! nicm       87:                        cmdq_error(cmdq, "no value specified");
1.6       nicm       88:                        return (CMD_RETURN_ERROR);
1.1       nicm       89:                }
1.4       nicm       90:                environ_set(env, name, value);
1.1       nicm       91:        }
                     92:
1.6       nicm       93:        return (CMD_RETURN_NORMAL);
1.1       nicm       94: }