X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Fclientsocket.c;h=b28d2000bce86b1babd276603a2248d5a9451917;hb=HEAD;hp=54bceb7a5f4468ffbd91a1f06071a925e3e47765;hpb=e152b333715749602773cc8bfd7ffef36a24b55c;p=citadel.git diff --git a/citadel/clientsocket.c b/citadel/clientsocket.c deleted file mode 100644 index 54bceb7a5..000000000 --- a/citadel/clientsocket.c +++ /dev/null @@ -1,370 +0,0 @@ -/* - * This module handles client-side sockets opened by the Citadel server (for - * the client side of Internet protocols, etc.) It does _not_ handle client - * sockets for the Citadel client; for that you must look in ipc_c_tcp.c - * (which, uncoincidentally, bears a striking similarity to this file). - * - * Copyright (c) 1987-2010 by the citadel.org team - * - * 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 3 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 - */ - -#include "sysdep.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "citadel.h" -#include "server.h" -#ifndef HAVE_SNPRINTF -#include "snprintf.h" -#endif -#include "sysdep_decls.h" -#include "config.h" -#include "clientsocket.h" -#include "ctdl_module.h" - -int sock_connect(char *host, char *service) -{ - struct in6_addr serveraddr; - struct addrinfo hints; - struct addrinfo *res = NULL; - struct addrinfo *ai = NULL; - int rc = (-1); - int sock = (-1); - - if ((host == NULL) || IsEmptyStr(host)) - return (-1); - if ((service == NULL) || IsEmptyStr(service)) - return (-1); - - memset(&hints, 0x00, sizeof(hints)); - hints.ai_flags = AI_NUMERICSERV; - hints.ai_family = AF_UNSPEC; - hints.ai_socktype = SOCK_STREAM; - - /* - * Handle numeric IPv4 and IPv6 addresses - */ - rc = inet_pton(AF_INET, host, &serveraddr); - if (rc == 1) { /* dotted quad */ - hints.ai_family = AF_INET; - hints.ai_flags |= AI_NUMERICHOST; - } else { - rc = inet_pton(AF_INET6, host, &serveraddr); - if (rc == 1) { /* IPv6 address */ - hints.ai_family = AF_INET6; - hints.ai_flags |= AI_NUMERICHOST; - } - } - - /* Begin the connection process */ - - rc = getaddrinfo(host, service, &hints, &res); - if (rc != 0) { - CtdlLogPrintf(CTDL_ERR, "%s: %s\n", host, gai_strerror(rc)); - return(-1); - } - - /* - * Try all available addresses until we connect to one or until we run out. - */ - for (ai = res; ai != NULL; ai = ai->ai_next) { - sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol); - if (sock < 0) { - CtdlLogPrintf(CTDL_ERR, "socket() failed: %s\n", strerror(errno)); - freeaddrinfo(res); - return(-1); - } - rc = connect(sock, ai->ai_addr, ai->ai_addrlen); - if (rc >= 0) { - freeaddrinfo(res); - return(sock); - } - else { - CtdlLogPrintf(CTDL_ERR, "connect() failed: %s\n", strerror(errno)); - close(sock); - } - } - freeaddrinfo(res); - return(-1); -} - - - -/* - * Read data from the client socket. - * - * sock socket fd to read from - * buf buffer to read into - * bytes number of bytes to read - * timeout Number of seconds to wait before timing out - * - * Possible return values: - * 1 Requested number of bytes has been read. - * 0 Request timed out. - * -1 Connection is broken, or other error. - */ -int socket_read_blob(int *Socket, StrBuf * Target, int bytes, int timeout) -{ - CitContext *CCC = MyContext(); - const char *Error; - int retval = 0; - - - retval = StrBufReadBLOBBuffered(Target, - CCC->sReadBuf, - &CCC->sPos, - Socket, 1, bytes, O_TERM, &Error); - if (retval < 0) { - CtdlLogPrintf(CTDL_CRIT, - "%s failed: %s\n", __FUNCTION__, Error); - } - return retval; -} - - -int sock_read_to(int *sock, char *buf, int bytes, int timeout, - int keep_reading_until_full) -{ - CitContext *CCC = MyContext(); - int rc; - - FlushStrBuf(CCC->MigrateBuf); - rc = socket_read_blob(sock, CCC->sMigrateBuf, bytes, timeout); - if (rc < 0) { - *buf = '\0'; - return rc; - } else { - if (StrLength(CCC->MigrateBuf) < bytes) - bytes = StrLength(CCC->MigrateBuf); - memcpy(buf, ChrPtr(CCC->MigrateBuf), bytes); - - FlushStrBuf(CCC->MigrateBuf); - return rc; - } -} - - -int CtdlSockGetLine(int *sock, StrBuf * Target, int nSec) -{ - CitContext *CCC = MyContext(); - const char *Error; - int rc; - - FlushStrBuf(Target); - rc = StrBufTCP_read_buffered_line_fast(Target, - CCC->sReadBuf, - &CCC->sPos, - sock, nSec, 1, &Error); - if ((rc < 0) && (Error != NULL)) - CtdlLogPrintf(CTDL_CRIT, - "%s failed: %s\n", __FUNCTION__, Error); - return rc; -} - - -/* - * client_getln() ... Get a LF-terminated line of text from the client. - * (This is implemented in terms of client_read() and could be - * justifiably moved out of sysdep.c) - */ -int sock_getln(int *sock, char *buf, int bufsize) -{ - int i, retval; - CitContext *CCC = MyContext(); - const char *pCh; - - FlushStrBuf(CCC->sMigrateBuf); - retval = CtdlSockGetLine(sock, CCC->sMigrateBuf, 5); - - i = StrLength(CCC->sMigrateBuf); - pCh = ChrPtr(CCC->sMigrateBuf); - - memcpy(buf, pCh, i + 1); - - FlushStrBuf(CCC->sMigrateBuf); - if (retval < 0) { - safestrncpy(&buf[i], "000", bufsize - i); - i += 3; - } - return i; -} - - -/* - * sock_read() - input binary data from socket. - * Returns the number of bytes read, or -1 for error. - */ -INLINE int sock_read(int *sock, char *buf, int bytes, - int keep_reading_until_full) -{ - return sock_read_to(sock, buf, bytes, CLIENT_TIMEOUT, - keep_reading_until_full); -} - - -/* - * sock_write() - send binary to server. - * Returns the number of bytes written, or -1 for error. - */ -int sock_write(int *sock, const char *buf, int nbytes) -{ - int nSuccessLess = 0; - int bytes_written = 0; - int retval; - fd_set rfds; - int fdflags; - int IsNonBlock; - int timeout = 50; - struct timeval tv; - int selectresolution = 100; - - fdflags = fcntl(*sock, F_GETFL); - IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK; - - while ((nSuccessLess < timeout) && - (*sock != -1) && - (bytes_written < nbytes)) - { - if (IsNonBlock){ - tv.tv_sec = selectresolution; - tv.tv_usec = 0; - - FD_ZERO(&rfds); - FD_SET(*sock, &rfds); - if (select(*sock + 1, NULL, &rfds, NULL, &tv) == -1) { -/// *Error = strerror(errno); - close (*sock); - *sock = -1; - return -1; - } - } - if (IsNonBlock && ! FD_ISSET(*sock, &rfds)) { - nSuccessLess ++; - continue; - } - retval = write(*sock, &buf[bytes_written], - nbytes - bytes_written); - if (retval < 1) { - sock_close(*sock); - *sock = -1; - return (-1); - } - bytes_written = bytes_written + retval; - if (IsNonBlock && (bytes_written == nbytes)){ - tv.tv_sec = selectresolution; - tv.tv_usec = 0; - - FD_ZERO(&rfds); - FD_SET(*sock, &rfds); - if (select(*sock + 1, NULL, &rfds, NULL, &tv) == -1) { -/// *Error = strerror(errno); - close (*sock); - *sock = -1; - return -1; - } - } - } - return (bytes_written); -} - - - -/* - * client_getln() ... Get a LF-terminated line of text from the client. - * (This is implemented in terms of client_read() and could be - * justifiably moved out of sysdep.c) - */ -int sock_getln_err(int *sock, char *buf, int bufsize, int *rc, int nSec) -{ - int i, retval; - CitContext *CCC = MyContext(); - const char *pCh; - - FlushStrBuf(CCC->sMigrateBuf); - *rc = retval = CtdlSockGetLine(sock, CCC->sMigrateBuf, nSec); - - i = StrLength(CCC->sMigrateBuf); - pCh = ChrPtr(CCC->sMigrateBuf); - - memcpy(buf, pCh, i + 1); - - FlushStrBuf(CCC->sMigrateBuf); - if (retval < 0) { - safestrncpy(&buf[i], "000", bufsize - i); - i += 3; - } - return i; -} - -/* - * Multiline version of sock_gets() ... this is a convenience function for - * client side protocol implementations. It only returns the first line of - * a multiline response, discarding the rest. - */ -int ml_sock_gets(int *sock, char *buf, int nSec) -{ - int rc = 0; - char bigbuf[1024]; - int g; - - g = sock_getln_err(sock, buf, SIZ, &rc, nSec); - if (rc < 0) - return rc; - if (g < 4) - return (g); - if (buf[3] != '-') - return (g); - - do { - g = sock_getln_err(sock, bigbuf, SIZ, &rc, nSec); - if (rc < 0) - return rc; - if (g < 0) - return (g); - } while ((g >= 4) && (bigbuf[3] == '-')); - - return (strlen(buf)); -} - - -/* - * sock_puts() - send line to server - implemented in terms of serv_write() - * Returns the number of bytes written, or -1 for error. - */ -int sock_puts(int *sock, char *buf) -{ - int i, j; - - i = sock_write(sock, buf, strlen(buf)); - if (i < 0) - return (i); - j = sock_write(sock, "\n", 1); - if (j < 0) - return (j); - return (i + j); -}