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/* $OpenBSD: cmd-set-password.c,v 1.3 2009/07/21 21:20:07 nicm Exp $ */
/*
* Copyright (c) 2009 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 <pwd.h>
#include <unistd.h>
#include "tmux.h"
/*
* Set server password.
*/
int cmd_set_password_parse(struct cmd *, int, char **, char **);
int cmd_set_password_exec(struct cmd *, struct cmd_ctx *);
void cmd_set_password_send(struct cmd *, struct buffer *);
void cmd_set_password_recv(struct cmd *, struct buffer *);
void cmd_set_password_free(struct cmd *);
void cmd_set_password_init(struct cmd *, int);
size_t cmd_set_password_print(struct cmd *, char *, size_t);
struct cmd_set_password_data {
char *password;
int flag_encrypted;
};
const struct cmd_entry cmd_set_password_entry = {
"set-password", "pass",
"[-c] password",
0, 0,
cmd_set_password_init,
cmd_set_password_parse,
cmd_set_password_exec,
cmd_set_password_send,
cmd_set_password_recv,
cmd_set_password_free,
cmd_set_password_print
};
void
cmd_set_password_init(struct cmd *self, unused int arg)
{
struct cmd_set_password_data *data;
self->data = data = xmalloc(sizeof *data);
data->password = NULL;
data->flag_encrypted = 0;
}
int
cmd_set_password_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_set_password_data *data;
int opt;
char *out;
self->entry->init(self, 0);
data = self->data;
while ((opt = getopt(argc, argv, "c")) != -1) {
switch (opt) {
case 'c':
data->flag_encrypted = 1;
break;
default:
goto usage;
}
}
argc -= optind;
argv += optind;
if (argc != 1)
goto usage;
if (!data->flag_encrypted) {
if ((out = crypt(argv[0], "$1")) != NULL)
data->password = xstrdup(out);
} else
data->password = xstrdup(argv[0]);
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
self->entry->free(self);
return (-1);
}
int
cmd_set_password_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_set_password_data *data = self->data;
if (data->password == NULL) {
ctx->error(ctx, "failed to encrypt password");
return (-1);
}
if (server_password != NULL)
xfree(server_password);
if (*data->password == '\0')
server_password = NULL;
else
server_password = xstrdup(data->password);
return (0);
}
void
cmd_set_password_send(struct cmd *self, struct buffer *b)
{
struct cmd_set_password_data *data = self->data;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->password);
}
void
cmd_set_password_recv(struct cmd *self, struct buffer *b)
{
struct cmd_set_password_data *data;
self->data = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->password = cmd_recv_string(b);
}
void
cmd_set_password_free(struct cmd *self)
{
struct cmd_set_password_data *data = self->data;
if (data->password != NULL)
xfree(data->password);
xfree(data);
}
size_t
cmd_set_password_print(struct cmd *self, char *buf, size_t len)
{
struct cmd_set_password_data *data = self->data;
size_t off = 0;
off += xsnprintf(buf, len, "%s", self->entry->name);
if (data == NULL)
return (off);
if (off < len && data->flag_encrypted)
off += xsnprintf(buf + off, len - off, " -c");
if (off < len && data->password != NULL)
off += xsnprintf(buf + off, len - off, " password");
return (off);
}
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