diff options
Diffstat (limited to 'kopete/protocols/gadu/libgadu/dcc.c')
| -rw-r--r-- | kopete/protocols/gadu/libgadu/dcc.c | 1298 |
1 files changed, 0 insertions, 1298 deletions
diff --git a/kopete/protocols/gadu/libgadu/dcc.c b/kopete/protocols/gadu/libgadu/dcc.c deleted file mode 100644 index d6b3c7cc..00000000 --- a/kopete/protocols/gadu/libgadu/dcc.c +++ /dev/null @@ -1,1298 +0,0 @@ -/* $Id$ */ - -/* - * (C) Copyright 2001-2006 Wojtek Kaniewski <wojtekka@irc.pl> - * Tomasz Chiliński <chilek@chilan.com> - * Adam Wysocki <gophi@ekg.chmurka.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License Version - * 2.1 as published by the Free Software Foundation. - * - * 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 Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, - * USA. - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#ifdef sun -# include <sys/filio.h> -#endif - -#include <ctype.h> -#include <errno.h> -#include <fcntl.h> -#include <stdarg.h> -#include <string.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - -#include "compat.h" -#include "libgadu.h" - -#ifndef GG_DEBUG_DISABLE -/* - * gg_dcc_debug_data() // funkcja wewnętrzna - * - * wyświetla zrzut pakietu w hexie. - * - * - prefix - prefiks zrzutu pakietu - * - fd - deskryptor gniazda - * - buf - bufor z danymi - * - size - rozmiar danych - */ -static void gg_dcc_debug_data(const char *prefix, int fd, const void *buf, unsigned int size) -{ - unsigned int i; - - gg_debug(GG_DEBUG_MISC, "++ gg_dcc %s (fd=%d,len=%d)", prefix, fd, size); - - for (i = 0; i < size; i++) - gg_debug(GG_DEBUG_MISC, " %.2x", ((unsigned char*) buf)[i]); - - gg_debug(GG_DEBUG_MISC, "\n"); -} -#else -#define gg_dcc_debug_data(a,b,c,d) do { } while (0) -#endif - -/* - * gg_dcc_request() - * - * wysyła informację o tym, że dany klient powinien się z nami połączyć. - * wykorzystywane, kiedy druga strona, której chcemy coś wysłać jest za - * maskaradą. - * - * - sess - struktura opisująca sesję GG - * - uin - numerek odbiorcy - * - * patrz gg_send_message_ctcp(). - */ -int gg_dcc_request(struct gg_session *sess, uin_t uin) -{ - return gg_send_message_ctcp(sess, GG_CLASS_CTCP, uin, "\002", 1); -} - -/* - * gg_dcc_fill_filetime() // funkcja wewnętrzna - * - * zamienia czas w postaci unixowej na windowsowy. - * - * - unix - czas w postaci unixowej - * - filetime - czas w postaci windowsowej - */ -static void gg_dcc_fill_filetime(uint32_t ut, uint32_t *ft) -{ -#ifdef __GG_LIBGADU_HAVE_LONG_LONG - unsigned long long tmp; - - tmp = ut; - tmp += 11644473600LL; - tmp *= 10000000LL; - -#ifndef __GG_LIBGADU_BIGENDIAN - ft[0] = (uint32_t) tmp; - ft[1] = (uint32_t) (tmp >> 32); -#else - ft[0] = gg_fix32((uint32_t) (tmp >> 32)); - ft[1] = gg_fix32((uint32_t) tmp); -#endif - -#endif -} - -/* - * gg_dcc_fill_file_info() - * - * wypełnia pola struct gg_dcc niezbędne do wysłania pliku. - * - * - d - struktura opisująca połączenie DCC - * - filename - nazwa pliku - * - * 0, -1. - */ -int gg_dcc_fill_file_info(struct gg_dcc *d, const char *filename) -{ - return gg_dcc_fill_file_info2(d, filename, filename); -} - -/* - * gg_dcc_fill_file_info2() - * - * wypełnia pola struct gg_dcc niezbędne do wysłania pliku. - * - * - d - struktura opisująca połączenie DCC - * - filename - nazwa pliku - * - local_filename - nazwa na lokalnym systemie plików - * - * 0, -1. - */ -int gg_dcc_fill_file_info2(struct gg_dcc *d, const char *filename, const char *local_filename) -{ - struct stat st; - const char *name, *ext, *p; - unsigned char *q; - int i, j; - - gg_debug(GG_DEBUG_FUNCTION, "** gg_dcc_fill_file_info2(%p, \"%s\", \"%s\");\n", d, filename, local_filename); - - if (!d || d->type != GG_SESSION_DCC_SEND) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() invalid arguments\n"); - errno = EINVAL; - return -1; - } - - if (stat(local_filename, &st) == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() stat() failed (%s)\n", strerror(errno)); - return -1; - } - - if ((st.st_mode & S_IFDIR)) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() that's a directory\n"); - errno = EINVAL; - return -1; - } - - if ((d->file_fd = open(local_filename, O_RDONLY)) == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() open() failed (%s)\n", strerror(errno)); - return -1; - } - - memset(&d->file_info, 0, sizeof(d->file_info)); - - if (!(st.st_mode & S_IWUSR)) - d->file_info.mode |= gg_fix32(GG_DCC_FILEATTR_READONLY); - - gg_dcc_fill_filetime(st.st_atime, d->file_info.atime); - gg_dcc_fill_filetime(st.st_mtime, d->file_info.mtime); - gg_dcc_fill_filetime(st.st_ctime, d->file_info.ctime); - - d->file_info.size = gg_fix32(st.st_size); - d->file_info.mode = gg_fix32(0x20); /* FILE_ATTRIBUTE_ARCHIVE */ - - if (!(name = strrchr(filename, '/'))) - name = filename; - else - name++; - - if (!(ext = strrchr(name, '.'))) - ext = name + strlen(name); - - for (i = 0, p = name; i < 8 && p < ext; i++, p++) - d->file_info.short_filename[i] = toupper(name[i]); - - if (i == 8 && p < ext) { - d->file_info.short_filename[6] = '~'; - d->file_info.short_filename[7] = '1'; - } - - if (strlen(ext) > 0) { - for (j = 0; *ext && j < 4; j++, p++) - d->file_info.short_filename[i + j] = toupper(ext[j]); - } - - for (q = d->file_info.short_filename; *q; q++) { - if (*q == 185) { - *q = 165; - } else if (*q == 230) { - *q = 198; - } else if (*q == 234) { - *q = 202; - } else if (*q == 179) { - *q = 163; - } else if (*q == 241) { - *q = 209; - } else if (*q == 243) { - *q = 211; - } else if (*q == 156) { - *q = 140; - } else if (*q == 159) { - *q = 143; - } else if (*q == 191) { - *q = 175; - } - } - - gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() short name \"%s\", dos name \"%s\"\n", name, d->file_info.short_filename); - strncpy(d->file_info.filename, name, sizeof(d->file_info.filename) - 1); - - return 0; -} - -/* - * gg_dcc_transfer() // funkcja wewnętrzna - * - * inicjuje proces wymiany pliku z danym klientem. - * - * - ip - adres ip odbiorcy - * - port - port odbiorcy - * - my_uin - własny numer - * - peer_uin - numer obiorcy - * - type - rodzaj wymiany (GG_SESSION_DCC_SEND lub GG_SESSION_DCC_GET) - * - * zaalokowana struct gg_dcc lub NULL jeśli wystąpił błąd. - */ -static struct gg_dcc *gg_dcc_transfer(uint32_t ip, uint16_t port, uin_t my_uin, uin_t peer_uin, int type) -{ - struct gg_dcc *d = NULL; - struct in_addr addr; - - addr.s_addr = ip; - - gg_debug(GG_DEBUG_FUNCTION, "** gg_dcc_transfer(%s, %d, %ld, %ld, %s);\n", inet_ntoa(addr), port, my_uin, peer_uin, (type == GG_SESSION_DCC_SEND) ? "SEND" : "GET"); - - if (!ip || ip == INADDR_NONE || !port || !my_uin || !peer_uin) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_transfer() invalid arguments\n"); - errno = EINVAL; - return NULL; - } - - if (!(d = (void*) calloc(1, sizeof(*d)))) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_transfer() not enough memory\n"); - return NULL; - } - - d->check = GG_CHECK_WRITE; - d->state = GG_STATE_CONNECTING; - d->type = type; - d->timeout = GG_DEFAULT_TIMEOUT; - d->file_fd = -1; - d->active = 1; - d->fd = -1; - d->uin = my_uin; - d->peer_uin = peer_uin; - - if ((d->fd = gg_connect(&addr, port, 1)) == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_transfer() connection failed\n"); - free(d); - return NULL; - } - - return d; -} - -/* - * gg_dcc_get_file() - * - * inicjuje proces odbierania pliku od danego klienta, gdy ten wysłał do - * nas żądanie połączenia. - * - * - ip - adres ip odbiorcy - * - port - port odbiorcy - * - my_uin - własny numer - * - peer_uin - numer obiorcy - * - * zaalokowana struct gg_dcc lub NULL jeśli wystąpił błąd. - */ -struct gg_dcc *gg_dcc_get_file(uint32_t ip, uint16_t port, uin_t my_uin, uin_t peer_uin) -{ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_get_file() handing over to gg_dcc_transfer()\n"); - - return gg_dcc_transfer(ip, port, my_uin, peer_uin, GG_SESSION_DCC_GET); -} - -/* - * gg_dcc_send_file() - * - * inicjuje proces wysyłania pliku do danego klienta. - * - * - ip - adres ip odbiorcy - * - port - port odbiorcy - * - my_uin - własny numer - * - peer_uin - numer obiorcy - * - * zaalokowana struct gg_dcc lub NULL jeśli wystąpił błąd. - */ -struct gg_dcc *gg_dcc_send_file(uint32_t ip, uint16_t port, uin_t my_uin, uin_t peer_uin) -{ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_send_file() handing over to gg_dcc_transfer()\n"); - - return gg_dcc_transfer(ip, port, my_uin, peer_uin, GG_SESSION_DCC_SEND); -} - -/* - * gg_dcc_voice_chat() - * - * próbuje nawiązać połączenie głosowe. - * - * - ip - adres ip odbiorcy - * - port - port odbiorcy - * - my_uin - własny numer - * - peer_uin - numer obiorcy - * - * zaalokowana struct gg_dcc lub NULL jeśli wystąpił błąd. - */ -struct gg_dcc *gg_dcc_voice_chat(uint32_t ip, uint16_t port, uin_t my_uin, uin_t peer_uin) -{ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_voice_chat() handing over to gg_dcc_transfer()\n"); - - return gg_dcc_transfer(ip, port, my_uin, peer_uin, GG_SESSION_DCC_VOICE); -} - -/* - * gg_dcc_set_type() - * - * po zdarzeniu GG_EVENT_DCC_CALLBACK należy ustawić typ połączenia za - * pomocą tej funkcji. - * - * - d - struktura opisująca połączenie - * - type - typ połączenia (GG_SESSION_DCC_SEND lub GG_SESSION_DCC_VOICE) - */ -void gg_dcc_set_type(struct gg_dcc *d, int type) -{ - d->type = type; - d->state = (type == GG_SESSION_DCC_SEND) ? GG_STATE_SENDING_FILE_INFO : GG_STATE_SENDING_VOICE_REQUEST; -} - -/* - * gg_dcc_callback() // funkcja wewnętrzna - * - * wywoływana z struct gg_dcc->callback, odpala gg_dcc_watch_fd i umieszcza - * rezultat w struct gg_dcc->event. - * - * - d - structura opisująca połączenie - * - * 0, -1. - */ -static int gg_dcc_callback(struct gg_dcc *d) -{ - struct gg_event *e = gg_dcc_watch_fd(d); - - d->event = e; - - return (e != NULL) ? 0 : -1; -} - -/* - * gg_dcc_socket_create() - * - * tworzy gniazdo dla bezpośredniej komunikacji między klientami. - * - * - uin - własny numer - * - port - preferowany port, jeśli równy 0 lub -1, próbuje domyślnego - * - * zaalokowana struct gg_dcc, którą poźniej należy zwolnić funkcją - * gg_dcc_free(), albo NULL jeśli wystąpił błąd. - */ -struct gg_dcc *gg_dcc_socket_create(uin_t uin, uint16_t port) -{ - struct gg_dcc *c; - struct sockaddr_in sin; - int sock, bound = 0, errno2; - - gg_debug(GG_DEBUG_FUNCTION, "** gg_create_dcc_socket(%d, %d);\n", uin, port); - - if (!uin) { - gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() invalid arguments\n"); - errno = EINVAL; - return NULL; - } - - if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() can't create socket (%s)\n", strerror(errno)); - return NULL; - } - - if (!port) - port = GG_DEFAULT_DCC_PORT; - - while (!bound) { - sin.sin_family = AF_INET; - sin.sin_addr.s_addr = INADDR_ANY; - sin.sin_port = htons(port); - - gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() trying port %d\n", port); - if (!bind(sock, (struct sockaddr*) &sin, sizeof(sin))) - bound = 1; - else { - if (++port == 65535) { - gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() no free port found\n"); - close(sock); - return NULL; - } - } - } - - if (listen(sock, 10)) { - gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() unable to listen (%s)\n", strerror(errno)); - errno2 = errno; - close(sock); - errno = errno2; - return NULL; - } - - gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() bound to port %d\n", port); - - if (!(c = malloc(sizeof(*c)))) { - gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() not enough memory for struct\n"); - close(sock); - return NULL; - } - memset(c, 0, sizeof(*c)); - - c->port = c->id = port; - c->fd = sock; - c->type = GG_SESSION_DCC_SOCKET; - c->uin = uin; - c->timeout = -1; - c->state = GG_STATE_LISTENING; - c->check = GG_CHECK_READ; - c->callback = gg_dcc_callback; - c->destroy = gg_dcc_free; - - return c; -} - -/* - * gg_dcc_voice_send() - * - * wysyła ramkę danych dla rozmowy głosowej. - * - * - d - struktura opisująca połączenie dcc - * - buf - bufor z danymi - * - length - rozmiar ramki - * - * 0, -1. - */ -int gg_dcc_voice_send(struct gg_dcc *d, char *buf, int length) -{ - struct packet_s { - uint8_t type; - uint32_t length; - } GG_PACKED; - struct packet_s packet; - - gg_debug(GG_DEBUG_FUNCTION, "++ gg_dcc_voice_send(%p, %p, %d);\n", d, buf, length); - if (!d || !buf || length < 0 || d->type != GG_SESSION_DCC_VOICE) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_voice_send() invalid argument\n"); - errno = EINVAL; - return -1; - } - - packet.type = 0x03; /* XXX */ - packet.length = gg_fix32(length); - - if (write(d->fd, &packet, sizeof(packet)) < (signed)sizeof(packet)) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_voice_send() write() failed\n"); - return -1; - } - gg_dcc_debug_data("write", d->fd, &packet, sizeof(packet)); - - if (write(d->fd, buf, length) < length) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_voice_send() write() failed\n"); - return -1; - } - gg_dcc_debug_data("write", d->fd, buf, length); - - return 0; -} - -#define gg_read(fd, buf, size) \ -{ \ - int tmp = read(fd, buf, size); \ - \ - if (tmp < (int) size) { \ - if (tmp == -1) { \ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed (errno=%d, %s)\n", errno, strerror(errno)); \ - } else if (tmp == 0) { \ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed, connection broken\n"); \ - } else { \ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed (%d bytes, %d needed)\n", tmp, size); \ - } \ - e->type = GG_EVENT_DCC_ERROR; \ - e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; \ - return e; \ - } \ - gg_dcc_debug_data("read", fd, buf, size); \ -} - -#define gg_write(fd, buf, size) \ -{ \ - int tmp; \ - gg_dcc_debug_data("write", fd, buf, size); \ - tmp = write(fd, buf, size); \ - if (tmp < (int) size) { \ - if (tmp == -1) { \ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() write() failed (errno=%d, %s)\n", errno, strerror(errno)); \ - } else { \ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() write() failed (%d needed, %d done)\n", size, tmp); \ - } \ - e->type = GG_EVENT_DCC_ERROR; \ - e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; \ - return e; \ - } \ -} - -/* - * gg_dcc_watch_fd() - * - * funkcja, którą należy wywołać, gdy coś się zmieni na gg_dcc->fd. - * - * - h - struktura zwrócona przez gg_create_dcc_socket() - * - * zaalokowana struct gg_event lub NULL, jeśli zabrakło pamięci na nią. - */ -struct gg_event *gg_dcc_watch_fd(struct gg_dcc *h) -{ - struct gg_event *e; - int foo; - - gg_debug(GG_DEBUG_FUNCTION, "** gg_dcc_watch_fd(%p);\n", h); - - if (!h || (h->type != GG_SESSION_DCC && h->type != GG_SESSION_DCC_SOCKET && h->type != GG_SESSION_DCC_SEND && h->type != GG_SESSION_DCC_GET && h->type != GG_SESSION_DCC_VOICE)) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() invalid argument\n"); - errno = EINVAL; - return NULL; - } - - if (!(e = (void*) calloc(1, sizeof(*e)))) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() not enough memory\n"); - return NULL; - } - - e->type = GG_EVENT_NONE; - - if (h->type == GG_SESSION_DCC_SOCKET) { - struct sockaddr_in sin; - struct gg_dcc *c; - int fd, sin_len = sizeof(sin), one = 1; - - if ((fd = accept(h->fd, (struct sockaddr*) &sin, &sin_len)) == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() can't accept() new connection (errno=%d, %s)\n", errno, strerror(errno)); - return e; - } - - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() new direct connection from %s:%d\n", inet_ntoa(sin.sin_addr), htons(sin.sin_port)); - -#ifdef FIONBIO - if (ioctl(fd, FIONBIO, &one) == -1) { -#else - if (fcntl(fd, F_SETFL, O_NONBLOCK) == -1) { -#endif - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() can't set nonblocking (errno=%d, %s)\n", errno, strerror(errno)); - close(fd); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; - return e; - } - - if (!(c = (void*) calloc(1, sizeof(*c)))) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() not enough memory for client data\n"); - - free(e); - close(fd); - return NULL; - } - - c->fd = fd; - c->check = GG_CHECK_READ; - c->state = GG_STATE_READING_UIN_1; - c->type = GG_SESSION_DCC; - c->timeout = GG_DEFAULT_TIMEOUT; - c->file_fd = -1; - c->remote_addr = sin.sin_addr.s_addr; - c->remote_port = ntohs(sin.sin_port); - - e->type = GG_EVENT_DCC_NEW; - e->event.dcc_new = c; - - return e; - } else { - struct gg_dcc_tiny_packet tiny; - struct gg_dcc_small_packet small; - struct gg_dcc_big_packet big; - int size, tmp, res, res_size = sizeof(res); - unsigned int utmp; - char buf[1024], ack[] = "UDAG"; - - struct gg_dcc_file_info_packet { - struct gg_dcc_big_packet big; - struct gg_file_info file_info; - } GG_PACKED; - struct gg_dcc_file_info_packet file_info_packet; - - switch (h->state) { - case GG_STATE_READING_UIN_1: - case GG_STATE_READING_UIN_2: - { - uin_t uin; - - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_READING_UIN_%d\n", (h->state == GG_STATE_READING_UIN_1) ? 1 : 2); - - gg_read(h->fd, &uin, sizeof(uin)); - - if (h->state == GG_STATE_READING_UIN_1) { - h->state = GG_STATE_READING_UIN_2; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - h->peer_uin = gg_fix32(uin); - } else { - h->state = GG_STATE_SENDING_ACK; - h->check = GG_CHECK_WRITE; - h->timeout = GG_DEFAULT_TIMEOUT; - h->uin = gg_fix32(uin); - e->type = GG_EVENT_DCC_CLIENT_ACCEPT; - } - - return e; - } - - case GG_STATE_SENDING_ACK: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_SENDING_ACK\n"); - - gg_write(h->fd, ack, 4); - - h->state = GG_STATE_READING_TYPE; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - - return e; - - case GG_STATE_READING_TYPE: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_TYPE\n"); - - gg_read(h->fd, &small, sizeof(small)); - - small.type = gg_fix32(small.type); - - switch (small.type) { - case 0x0003: /* XXX */ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() callback\n"); - h->type = GG_SESSION_DCC_SEND; - h->state = GG_STATE_SENDING_FILE_INFO; - h->check = GG_CHECK_WRITE; - h->timeout = GG_DEFAULT_TIMEOUT; - - e->type = GG_EVENT_DCC_CALLBACK; - - break; - - case 0x0002: /* XXX */ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() dialin\n"); - h->type = GG_SESSION_DCC_GET; - h->state = GG_STATE_READING_REQUEST; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - h->incoming = 1; - - break; - - default: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() unknown dcc type (%.4x) from %ld\n", small.type, h->peer_uin); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; - } - - return e; - - case GG_STATE_READING_REQUEST: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_REQUEST\n"); - - gg_read(h->fd, &small, sizeof(small)); - - small.type = gg_fix32(small.type); - - switch (small.type) { - case 0x0001: /* XXX */ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() file transfer request\n"); - h->state = GG_STATE_READING_FILE_INFO; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - break; - - case 0x0003: /* XXX */ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() voice chat request\n"); - h->state = GG_STATE_SENDING_VOICE_ACK; - h->check = GG_CHECK_WRITE; - h->timeout = GG_DCC_TIMEOUT_VOICE_ACK; - h->type = GG_SESSION_DCC_VOICE; - e->type = GG_EVENT_DCC_NEED_VOICE_ACK; - - break; - - default: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() unknown dcc request (%.4x) from %ld\n", small.type, h->peer_uin); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; - } - - return e; - - case GG_STATE_READING_FILE_INFO: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_FILE_INFO\n"); - - gg_read(h->fd, &file_info_packet, sizeof(file_info_packet)); - - memcpy(&h->file_info, &file_info_packet.file_info, sizeof(h->file_info)); - - h->file_info.mode = gg_fix32(h->file_info.mode); - h->file_info.size = gg_fix32(h->file_info.size); - - h->state = GG_STATE_SENDING_FILE_ACK; - h->check = GG_CHECK_WRITE; - h->timeout = GG_DCC_TIMEOUT_FILE_ACK; - - e->type = GG_EVENT_DCC_NEED_FILE_ACK; - - return e; - - case GG_STATE_SENDING_FILE_ACK: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_FILE_ACK\n"); - - big.type = gg_fix32(0x0006); /* XXX */ - big.dunno1 = gg_fix32(h->offset); - big.dunno2 = 0; - - gg_write(h->fd, &big, sizeof(big)); - - h->state = GG_STATE_READING_FILE_HEADER; - h->chunk_size = sizeof(big); - h->chunk_offset = 0; - if (!(h->chunk_buf = malloc(sizeof(big)))) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() out of memory\n"); - free(e); - return NULL; - } - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - - return e; - - case GG_STATE_SENDING_VOICE_ACK: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_VOICE_ACK\n"); - - tiny.type = 0x01; /* XXX */ - - gg_write(h->fd, &tiny, sizeof(tiny)); - - h->state = GG_STATE_READING_VOICE_HEADER; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - - h->offset = 0; - - return e; - - case GG_STATE_READING_FILE_HEADER: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_FILE_HEADER\n"); - - tmp = read(h->fd, h->chunk_buf + h->chunk_offset, h->chunk_size - h->chunk_offset); - - if (tmp == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() read() failed (errno=%d, %s)\n", errno, strerror(errno)); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_NET; - return e; - } - - gg_dcc_debug_data("read", h->fd, h->chunk_buf + h->chunk_offset, h->chunk_size - h->chunk_offset); - - h->chunk_offset += tmp; - - if (h->chunk_offset < h->chunk_size) - return e; - - memcpy(&big, h->chunk_buf, sizeof(big)); - free(h->chunk_buf); - h->chunk_buf = NULL; - - big.type = gg_fix32(big.type); - h->chunk_size = gg_fix32(big.dunno1); - h->chunk_offset = 0; - - if (big.type == 0x0005) { /* XXX */ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() transfer refused\n"); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_REFUSED; - return e; - } - - if (h->chunk_size == 0) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() empty chunk, EOF\n"); - e->type = GG_EVENT_DCC_DONE; - return e; - } - - h->state = GG_STATE_GETTING_FILE; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - h->established = 1; - - return e; - - case GG_STATE_READING_VOICE_HEADER: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_VOICE_HEADER\n"); - - gg_read(h->fd, &tiny, sizeof(tiny)); - - switch (tiny.type) { - case 0x03: /* XXX */ - h->state = GG_STATE_READING_VOICE_SIZE; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - h->established = 1; - break; - case 0x04: /* XXX */ - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() peer breaking connection\n"); - /* XXX zwracać odpowiedni event */ - default: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() unknown request (%.2x)\n", tiny.type); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; - } - - return e; - - case GG_STATE_READING_VOICE_SIZE: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_VOICE_SIZE\n"); - - gg_read(h->fd, &small, sizeof(small)); - - small.type = gg_fix32(small.type); - - if (small.type < 16 || small.type > sizeof(buf)) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() invalid voice frame size (%d)\n", small.type); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_NET; - - return e; - } - - h->chunk_size = small.type; - h->chunk_offset = 0; - - if (!(h->voice_buf = malloc(h->chunk_size))) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() out of memory for voice frame\n"); - free(e); - return NULL; - } - - h->state = GG_STATE_READING_VOICE_DATA; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - - return e; - - case GG_STATE_READING_VOICE_DATA: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_VOICE_DATA\n"); - - tmp = read(h->fd, h->voice_buf + h->chunk_offset, h->chunk_size - h->chunk_offset); - if (tmp < 1) { - if (tmp == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed (errno=%d, %s)\n", errno, strerror(errno)); - } else { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed, connection broken\n"); - } - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_NET; - return e; - } - - gg_dcc_debug_data("read", h->fd, h->voice_buf + h->chunk_offset, tmp); - - h->chunk_offset += tmp; - - if (h->chunk_offset >= h->chunk_size) { - e->type = GG_EVENT_DCC_VOICE_DATA; - e->event.dcc_voice_data.data = h->voice_buf; - e->event.dcc_voice_data.length = h->chunk_size; - h->state = GG_STATE_READING_VOICE_HEADER; - h->voice_buf = NULL; - } - - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - - return e; - - case GG_STATE_CONNECTING: - { - uin_t uins[2]; - - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_CONNECTING\n"); - - res = 0; - if ((foo = getsockopt(h->fd, SOL_SOCKET, SO_ERROR, &res, &res_size)) || res) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() connection failed (fd=%d,errno=%d(%s),foo=%d,res=%d(%s))\n", h->fd, errno, strerror(errno), foo, res, strerror(res)); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; - return e; - } - - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() connected, sending uins\n"); - - uins[0] = gg_fix32(h->uin); - uins[1] = gg_fix32(h->peer_uin); - - gg_write(h->fd, uins, sizeof(uins)); - - h->state = GG_STATE_READING_ACK; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - - return e; - } - - case GG_STATE_READING_ACK: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_ACK\n"); - - gg_read(h->fd, buf, 4); - - if (strncmp(buf, ack, 4)) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() did't get ack\n"); - - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; - return e; - } - - h->check = GG_CHECK_WRITE; - h->timeout = GG_DEFAULT_TIMEOUT; - h->state = GG_STATE_SENDING_REQUEST; - - return e; - - case GG_STATE_SENDING_VOICE_REQUEST: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_VOICE_REQUEST\n"); - - small.type = gg_fix32(0x0003); - - gg_write(h->fd, &small, sizeof(small)); - - h->state = GG_STATE_READING_VOICE_ACK; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - - return e; - - case GG_STATE_SENDING_REQUEST: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_REQUEST\n"); - - small.type = (h->type == GG_SESSION_DCC_GET) ? gg_fix32(0x0003) : gg_fix32(0x0002); /* XXX */ - - gg_write(h->fd, &small, sizeof(small)); - - switch (h->type) { - case GG_SESSION_DCC_GET: - h->state = GG_STATE_READING_REQUEST; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - break; - - case GG_SESSION_DCC_SEND: - h->state = GG_STATE_SENDING_FILE_INFO; - h->check = GG_CHECK_WRITE; - h->timeout = GG_DEFAULT_TIMEOUT; - - if (h->file_fd == -1) - e->type = GG_EVENT_DCC_NEED_FILE_INFO; - break; - - case GG_SESSION_DCC_VOICE: - h->state = GG_STATE_SENDING_VOICE_REQUEST; - h->check = GG_CHECK_WRITE; - h->timeout = GG_DEFAULT_TIMEOUT; - break; - } - - return e; - - case GG_STATE_SENDING_FILE_INFO: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_FILE_INFO\n"); - - if (h->file_fd == -1) { - e->type = GG_EVENT_DCC_NEED_FILE_INFO; - return e; - } - - small.type = gg_fix32(0x0001); /* XXX */ - - gg_write(h->fd, &small, sizeof(small)); - - file_info_packet.big.type = gg_fix32(0x0003); /* XXX */ - file_info_packet.big.dunno1 = 0; - file_info_packet.big.dunno2 = 0; - - memcpy(&file_info_packet.file_info, &h->file_info, sizeof(h->file_info)); - - /* zostają teraz u nas, więc odwracamy z powrotem */ - h->file_info.size = gg_fix32(h->file_info.size); - h->file_info.mode = gg_fix32(h->file_info.mode); - - gg_write(h->fd, &file_info_packet, sizeof(file_info_packet)); - - h->state = GG_STATE_READING_FILE_ACK; - h->check = GG_CHECK_READ; - h->timeout = GG_DCC_TIMEOUT_FILE_ACK; - - return e; - - case GG_STATE_READING_FILE_ACK: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_FILE_ACK\n"); - - gg_read(h->fd, &big, sizeof(big)); - - /* XXX sprawdzać wynik */ - h->offset = gg_fix32(big.dunno1); - - h->state = GG_STATE_SENDING_FILE_HEADER; - h->check = GG_CHECK_WRITE; - h->timeout = GG_DEFAULT_TIMEOUT; - - e->type = GG_EVENT_DCC_ACK; - - return e; - - case GG_STATE_READING_VOICE_ACK: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_VOICE_ACK\n"); - - gg_read(h->fd, &tiny, sizeof(tiny)); - - if (tiny.type != 0x01) { - gg_debug(GG_DEBUG_MISC, "// invalid reply (%.2x), connection refused\n", tiny.type); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_REFUSED; - return e; - } - - h->state = GG_STATE_READING_VOICE_HEADER; - h->check = GG_CHECK_READ; - h->timeout = GG_DEFAULT_TIMEOUT; - - e->type = GG_EVENT_DCC_ACK; - - return e; - - case GG_STATE_SENDING_FILE_HEADER: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_FILE_HEADER\n"); - - h->chunk_offset = 0; - - if ((h->chunk_size = h->file_info.size - h->offset) > 4096) { - h->chunk_size = 4096; - big.type = gg_fix32(0x0003); /* XXX */ - } else - big.type = gg_fix32(0x0002); /* XXX */ - - big.dunno1 = gg_fix32(h->chunk_size); - big.dunno2 = 0; - - gg_write(h->fd, &big, sizeof(big)); - - h->state = GG_STATE_SENDING_FILE; - h->check = GG_CHECK_WRITE; - h->timeout = GG_DEFAULT_TIMEOUT; - h->established = 1; - - return e; - - case GG_STATE_SENDING_FILE: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_FILE\n"); - - if ((utmp = h->chunk_size - h->chunk_offset) > sizeof(buf)) - utmp = sizeof(buf); - - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() offset=%d, size=%d\n", h->offset, h->file_info.size); - - /* koniec pliku? */ - if (h->file_info.size == 0) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() reached eof on empty file\n"); - e->type = GG_EVENT_DCC_DONE; - - return e; - } - - lseek(h->file_fd, h->offset, SEEK_SET); - - size = read(h->file_fd, buf, utmp); - - /* błąd */ - if (size == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed. (errno=%d, %s)\n", errno, strerror(errno)); - - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_FILE; - - return e; - } - - /* koniec pliku? */ - if (size == 0) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() reached eof\n"); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_EOF; - - return e; - } - - /* jeśli wczytaliśmy więcej, utnijmy. */ - if (h->offset + size > h->file_info.size) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() too much (read=%d, ofs=%d, size=%d)\n", size, h->offset, h->file_info.size); - size = h->file_info.size - h->offset; - - if (size < 1) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() reached EOF after cutting\n"); - e->type = GG_EVENT_DCC_DONE; - return e; - } - } - - tmp = write(h->fd, buf, size); - - if (tmp == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() write() failed (%s)\n", strerror(errno)); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_NET; - return e; - } - - h->offset += size; - - if (h->offset >= h->file_info.size) { - e->type = GG_EVENT_DCC_DONE; - return e; - } - - h->chunk_offset += size; - - if (h->chunk_offset >= h->chunk_size) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() chunk finished\n"); - h->state = GG_STATE_SENDING_FILE_HEADER; - h->timeout = GG_DEFAULT_TIMEOUT; - } else { - h->state = GG_STATE_SENDING_FILE; - h->timeout = GG_DCC_TIMEOUT_SEND; - } - - h->check = GG_CHECK_WRITE; - - return e; - - case GG_STATE_GETTING_FILE: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_GETTING_FILE\n"); - - if ((utmp = h->chunk_size - h->chunk_offset) > sizeof(buf)) - utmp = sizeof(buf); - - size = read(h->fd, buf, utmp); - - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() ofs=%d, size=%d, read()=%d\n", h->offset, h->file_info.size, size); - - /* błąd */ - if (size == -1) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed. (errno=%d, %s)\n", errno, strerror(errno)); - - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_NET; - - return e; - } - - /* koniec? */ - if (size == 0) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() reached eof\n"); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_EOF; - - return e; - } - - tmp = write(h->file_fd, buf, size); - - if (tmp == -1 || tmp < size) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() write() failed (%d:fd=%d:res=%d:%s)\n", tmp, h->file_fd, size, strerror(errno)); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_NET; - return e; - } - - h->offset += size; - - if (h->offset >= h->file_info.size) { - e->type = GG_EVENT_DCC_DONE; - return e; - } - - h->chunk_offset += size; - - if (h->chunk_offset >= h->chunk_size) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() chunk finished\n"); - h->state = GG_STATE_READING_FILE_HEADER; - h->timeout = GG_DEFAULT_TIMEOUT; - h->chunk_offset = 0; - h->chunk_size = sizeof(big); - if (!(h->chunk_buf = malloc(sizeof(big)))) { - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() out of memory\n"); - free(e); - return NULL; - } - } else { - h->state = GG_STATE_GETTING_FILE; - h->timeout = GG_DCC_TIMEOUT_GET; - } - - h->check = GG_CHECK_READ; - - return e; - - default: - gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_???\n"); - e->type = GG_EVENT_DCC_ERROR; - e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; - - return e; - } - } - - return e; -} - -#undef gg_read -#undef gg_write - -/* - * gg_dcc_free() - * - * zwalnia pamięć po strukturze połączenia dcc. - * - * - d - zwalniana struktura - */ -void gg_dcc_free(struct gg_dcc *d) -{ - gg_debug(GG_DEBUG_FUNCTION, "** gg_dcc_free(%p);\n", d); - - if (!d) - return; - - if (d->fd != -1) - close(d->fd); - - if (d->chunk_buf) { - free(d->chunk_buf); - d->chunk_buf = NULL; - } - - free(d); -} - -/* - * Local variables: - * c-indentation-style: k&r - * c-basic-offset: 8 - * indent-tabs-mode: notnil - * End: - * - * vim: shiftwidth=8: - */ |