gaim/gaim

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2019-09-10, convert-repo
6951185baedb
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/*
* gaim-remote
*
* Gaim is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* Somewhat inspired by XMMS*/
/* This provides code for connecting to a Gaim socket and communicating with
* it. It will eventually be made a library once the core and ui are split. */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include "gaim-socket.h"
void cui_send_packet (int fd, struct gaim_cui_packet *p) {
int len = sizeof(p->type) + sizeof(p->subtype) + sizeof(p->length) + p->length;
char *pack = g_malloc(len);
char *a = pack;
memcpy (a, &(p->type), sizeof(p->type));
a = a + sizeof(p->type);
memcpy (a, &(p->subtype), sizeof(p->subtype));
a = a + sizeof(p->subtype);
memcpy (a, &(p->length), sizeof(p->length));
a = a + sizeof(p->length);
memcpy (a, p->data, p->length);
write(fd, pack, len);
g_free(pack);
}
void cui_packet_append_string(struct gaim_cui_packet *p, char *str) {
int len = p->length + strlen(str);
char *k = g_malloc(len);
memcpy(k, p->data, p->length);
memcpy(k + p->length, str, strlen(str));
if (p->data)
g_free(p->data);
p->data = k;
p->length = len;
}
void cui_packet_append_char(struct gaim_cui_packet *p, char c) {
int len = p->length + sizeof(char);
char *k = g_malloc(len);
memcpy(k, p->data, p->length);
k[p->length] = c;
if (p->data)
g_free(p->data);
p->data = k;
p->length = len;
}
void cui_packet_append_raw(struct gaim_cui_packet *p, char *str, int len) {
int lent = p->length + len;
char *k = g_malloc(lent);
memcpy(k, p->data, p->length);
memcpy(k + p->length, str, len);
if (p->data)
g_free(p->data);
p->data = k;
p->length = lent;
}
struct gaim_cui_packet *cui_packet_new(guchar type, guchar subtype) {
struct gaim_cui_packet *p = g_new0(struct gaim_cui_packet, 1);
p->type = type;
p->subtype = subtype;
p->length = 0;
p->data = NULL;
return p;
}
void cui_packet_free(struct gaim_cui_packet *p) {
if (p->data)
g_free(p->data);
g_free(p);
}
struct gaim_cui_packet *cui_read_packet(int fd) {
struct gaim_cui_packet *p = g_new0(struct gaim_cui_packet, 1);
char *data = NULL;
if (!(read(fd, &p->type, sizeof(p->type)))) {
g_free(p);
return NULL;
}
if (!(read(fd, &p->subtype, sizeof(p->subtype)))) {
g_free(p);
return NULL;
}
if (!(read(fd, &p->length, sizeof(p->length)))) {
g_free(p);
return NULL;
}
if (p->length) {
data = g_malloc(p->length);
if (!(read(fd, data, p->length))) {
g_free(p);
return NULL;
}
}
p->data = data;
return p;
}
/* copied directly from xmms_connect_to_session */
gint gaim_connect_to_session(gint session)
{
gint fd;
uid_t stored_uid, euid;
struct sockaddr_un saddr;
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) != -1)
{
saddr.sun_family = AF_UNIX;
stored_uid = getuid();
euid = geteuid();
setuid(euid);
sprintf(saddr.sun_path, "%s/gaim_%s.%d", g_get_tmp_dir(), g_get_user_name(), session);
setreuid(stored_uid, euid);
if (connect(fd, (struct sockaddr *) &saddr, sizeof (saddr)) != -1)
return fd;
}
close(fd);
return -1;
}
gboolean gaim_session_exists(int sess)
{
struct gaim_cui_packet *pack = NULL;
int fd = gaim_connect_to_session(sess);
if (fd > 0) {
pack = cui_packet_new(CUI_TYPE_META, CUI_META_PING);
cui_send_packet(fd, pack);
cui_packet_free(pack);
close(fd);
} else {
return FALSE;
}
return TRUE;
}