tmux/cmd-show-options.c

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/* $Id: cmd-show-options.c,v 1.5 2008-06-23 22:12:29 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* 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 <sys/types.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Show options.
*/
int cmd_show_options_parse(struct cmd *, int, char **, char **);
void cmd_show_options_exec(struct cmd *, struct cmd_ctx *);
void cmd_show_options_send(struct cmd *, struct buffer *);
void cmd_show_options_recv(struct cmd *, struct buffer *);
void cmd_show_options_free(struct cmd *);
void cmd_show_options_print(struct cmd *, char *, size_t);
struct cmd_show_options_data {
char *target;
int flag_global;
};
/*
* XXX Can't use cmd_target because we want -t not to use current if missing
* (this could be a flag??).
*/
const struct cmd_entry cmd_show_options_entry = {
"show-options", "show",
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"[-t target-session]",
0,
NULL,
cmd_show_options_parse,
cmd_show_options_exec,
cmd_show_options_send,
cmd_show_options_recv,
cmd_show_options_free,
cmd_show_options_print
};
int
cmd_show_options_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_show_options_data *data;
int opt;
self->data = data = xmalloc(sizeof *data);
data->target = NULL;
data->flag_global = 1;
while ((opt = getopt(argc, argv, "t:s:")) != EOF) {
switch (opt) {
case 't':
if (data->target == NULL)
data->target = xstrdup(optarg);
data->flag_global = 0;
break;
default:
goto usage;
}
}
argc -= optind;
argv += optind;
if (argc != 0)
goto usage;
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
self->entry->free(self);
return (-1);
}
void
cmd_show_options_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_show_options_data *data = self->data;
struct session *s;
struct options *oo;
const struct set_option_entry *entry;
u_int i;
char *vs;
long long vn;
if (data == NULL)
return;
if (data->flag_global ||
((s = cmd_find_session(ctx, data->target))) == NULL)
oo = &global_options;
else
oo = &s->options;
for (i = 0; i < NSETOPTION; i++) {
entry = &set_option_table[i];
if (options_find1(oo, entry->name) == NULL)
continue;
switch (entry->type) {
case SET_OPTION_STRING:
vs = options_get_string(oo, entry->name);
ctx->print(ctx, "%s \"%s\"", entry->name, vs);
break;
case SET_OPTION_NUMBER:
vn = options_get_number(oo, entry->name);
ctx->print(ctx, "%s %lld", entry->name, vn);
break;
case SET_OPTION_KEY:
vn = options_get_number(oo, entry->name);
ctx->print(ctx, "%s %s",
entry->name, key_string_lookup_key(vn));
break;
case SET_OPTION_COLOUR:
vn = options_get_number(oo, entry->name);
ctx->print(ctx, "%s %s",
entry->name, screen_colourstring(vn));
break;
case SET_OPTION_FLAG:
vn = options_get_number(oo, entry->name);
if (vn)
ctx->print(ctx, "%s on", entry->name);
else
ctx->print(ctx, "%s off", entry->name);
break;
case SET_OPTION_CHOICE:
vn = options_get_number(oo, entry->name);
ctx->print(ctx, "%s %s",
entry->name, entry->choices[vn]);
break;
}
}
if (ctx->cmdclient != NULL)
server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
}
void
cmd_show_options_send(struct cmd *self, struct buffer *b)
{
struct cmd_show_options_data *data = self->data;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->target);
}
void
cmd_show_options_recv(struct cmd *self, struct buffer *b)
{
struct cmd_show_options_data *data;
self->data = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->target = cmd_recv_string(b);
}
void
cmd_show_options_free(struct cmd *self)
{
struct cmd_show_options_data *data = self->data;
if (data->target != NULL)
xfree(data->target);
xfree(data);
}
void
cmd_show_options_print(struct cmd *self, char *buf, size_t len)
{
xsnprintf(buf, len, "%s", self->entry->name);
}