tmux/cmd-set-option.c

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/* $Id: cmd-set-option.c,v 1.2 2007-10-04 21:48:11 nicm Exp $ */
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/*
* 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"
/*
* Set an option.
*/
int cmd_set_option_parse(void **, int, char **, char **);
const char *cmd_set_option_usage(void);
void cmd_set_option_exec(void *, struct cmd_ctx *);
void cmd_set_option_send(void *, struct buffer *);
void cmd_set_option_recv(void **, struct buffer *);
void cmd_set_option_free(void *);
struct cmd_set_option_data {
char *option;
char *value;
};
const struct cmd_entry cmd_set_option_entry = {
CMD_SETOPTION, "set-option", "set", "option value",
CMD_NOSESSION,
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cmd_set_option_parse,
cmd_set_option_exec,
cmd_set_option_send,
cmd_set_option_recv,
cmd_set_option_free
};
int
cmd_set_option_parse(void **ptr, int argc, char **argv, char **cause)
{
struct cmd_set_option_data *data;
int opt;
*ptr = data = xmalloc(sizeof *data);
data->option = NULL;
data->value = NULL;
while ((opt = getopt(argc, argv, "")) != EOF) {
switch (opt) {
default:
goto usage;
}
}
argc -= optind;
argv += optind;
if (argc != 1 && argc != 2)
goto usage;
data->option = xstrdup(argv[0]);
if (argc == 2)
data->value = xstrdup(argv[1]);
return (0);
usage:
usage(cause, "%s %s",
cmd_set_option_entry.name, cmd_set_option_entry.usage);
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cmd_set_option_free(data);
return (-1);
}
void
cmd_set_option_exec(void *ptr, unused struct cmd_ctx *ctx)
{
struct cmd_set_option_data *data = ptr;
struct client *c = ctx->client;
const char *errstr;
u_int number;
int bool, key;
if (data == NULL)
return;
if (*data->option == '\0') {
ctx->error(ctx, "invalid option");
return;
}
number = strtonum(data->value, 0, UINT_MAX, &errstr);
bool = -1;
if (number == 1 ||
strcmp(data->value, "on") == 0 || strcmp(data->value, "yes") == 0)
bool = 1;
if (number == 0 ||
strcmp(data->value, "off") == 0 || strcmp(data->value, "no") == 0)
bool = 0;
if (strcmp(data->option, "prefix") == 0) {
key = key_string_lookup_string(data->value);
if (key == KEYC_NONE) {
ctx->error(ctx, "unknown key: %s", data->value);
return;
}
prefix_key = key;
} else {
ctx->error(ctx, "unknown option: %s", data->option);
return;
}
if (!(ctx->flags & CMD_KEY))
server_write_client(c, MSG_EXIT, NULL, 0);
}
void
cmd_set_option_send(void *ptr, struct buffer *b)
{
struct cmd_set_option_data *data = ptr;
cmd_send_string(b, data->option);
cmd_send_string(b, data->value);
}
void
cmd_set_option_recv(void **ptr, struct buffer *b)
{
struct cmd_set_option_data *data;
*ptr = data = xmalloc(sizeof *data);
data->option = cmd_recv_string(b);
data->value = cmd_recv_string(b);
}
void
cmd_set_option_free(void *ptr)
{
struct cmd_set_option_data *data = ptr;
if (data->option != NULL)
xfree(data->option);
if (data->value != NULL)
xfree(data->value);
xfree(data);
}