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Annotation of src/usr.bin/tmux/cmd-show-environment.c, Revision 1.8

1.8     ! nicm        1: /* $OpenBSD: cmd-show-environment.c,v 1.7 2013/03/24 09:54:10 nicm 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:  * Show environment.
                     28:  */
                     29:
1.7       nicm       30: enum cmd_retval         cmd_show_environment_exec(struct cmd *, struct cmd_q *);
1.1       nicm       31:
                     32: const struct cmd_entry cmd_show_environment_entry = {
                     33:        "show-environment", "showenv",
1.5       nicm       34:        "gt:", 0, 1,
                     35:        "[-g] " CMD_TARGET_SESSION_USAGE " [name]",
1.3       nicm       36:        0,
                     37:        NULL,
                     38:        cmd_show_environment_exec
1.1       nicm       39: };
                     40:
1.6       nicm       41: enum cmd_retval
1.7       nicm       42: cmd_show_environment_exec(struct cmd *self, struct cmd_q *cmdq)
1.1       nicm       43: {
1.3       nicm       44:        struct args             *args = self->args;
                     45:        struct session          *s;
                     46:        struct environ          *env;
                     47:        struct environ_entry    *envent;
1.1       nicm       48:
1.3       nicm       49:        if (args_has(self->args, 'g'))
1.1       nicm       50:                env = &global_environ;
                     51:        else {
1.7       nicm       52:                if ((s = cmd_find_session(cmdq, args_get(args, 't'), 0)) == NULL)
1.6       nicm       53:                        return (CMD_RETURN_ERROR);
1.1       nicm       54:                env = &s->environ;
1.5       nicm       55:        }
                     56:
                     57:        if (args->argc != 0) {
                     58:                envent = environ_find(env, args->argv[0]);
                     59:                if (envent == NULL) {
1.7       nicm       60:                        cmdq_error(cmdq, "unknown variable: %s", args->argv[0]);
1.6       nicm       61:                        return (CMD_RETURN_ERROR);
1.5       nicm       62:                }
                     63:                if (envent->value != NULL)
1.7       nicm       64:                        cmdq_print(cmdq, "%s=%s", envent->name, envent->value);
1.5       nicm       65:                else
1.7       nicm       66:                        cmdq_print(cmdq, "-%s", envent->name);
1.6       nicm       67:                return (CMD_RETURN_NORMAL);
1.1       nicm       68:        }
                     69:
                     70:        RB_FOREACH(envent, environ, env) {
                     71:                if (envent->value != NULL)
1.7       nicm       72:                        cmdq_print(cmdq, "%s=%s", envent->name, envent->value);
1.1       nicm       73:                else
1.7       nicm       74:                        cmdq_print(cmdq, "-%s", envent->name);
1.1       nicm       75:        }
                     76:
1.6       nicm       77:        return (CMD_RETURN_NORMAL);
1.1       nicm       78: }