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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /X11/xtrans/Xtransutil.c | |
download | vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.gz vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.bz2 vcxsrv-3562e78743202e43aec8727005182a2558117eca.zip |
Checked in the following released items:
xkeyboard-config-1.4.tar.gz
ttf-bitstream-vera-1.10.tar.gz
font-alias-1.0.1.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sony-misc-1.0.0.tar.gz
font-schumacher-misc-1.0.0.tar.gz
font-mutt-misc-1.0.0.tar.gz
font-misc-misc-1.0.0.tar.gz
font-misc-meltho-1.0.0.tar.gz
font-micro-misc-1.0.0.tar.gz
font-jis-misc-1.0.0.tar.gz
font-isas-misc-1.0.0.tar.gz
font-dec-misc-1.0.0.tar.gz
font-daewoo-misc-1.0.0.tar.gz
font-cursor-misc-1.0.0.tar.gz
font-arabic-misc-1.0.0.tar.gz
font-winitzki-cyrillic-1.0.0.tar.gz
font-misc-cyrillic-1.0.0.tar.gz
font-cronyx-cyrillic-1.0.0.tar.gz
font-screen-cyrillic-1.0.1.tar.gz
font-xfree86-type1-1.0.1.tar.gz
font-adobe-utopia-type1-1.0.1.tar.gz
font-ibm-type1-1.0.0.tar.gz
font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
font-bitstream-100dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz
font-bh-100dpi-1.0.0.tar.gz
font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
font-adobe-utopia-75dpi-1.0.1.tar.gz
font-bh-75dpi-1.0.0.tar.gz
bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'X11/xtrans/Xtransutil.c')
-rw-r--r-- | X11/xtrans/Xtransutil.c | 642 |
1 files changed, 642 insertions, 0 deletions
diff --git a/X11/xtrans/Xtransutil.c b/X11/xtrans/Xtransutil.c new file mode 100644 index 000000000..0f7c7b2a5 --- /dev/null +++ b/X11/xtrans/Xtransutil.c @@ -0,0 +1,642 @@ +/* + +Copyright 1993, 1994, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization +from The Open Group. + + * Copyright 1993, 1994 NCR Corporation - Dayton, Ohio, USA + * + * All Rights Reserved + * + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose and without fee is hereby granted, provided + * that the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name NCR not be used in advertising + * or publicity pertaining to distribution of the software without specific, + * written prior permission. NCR makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * NCRS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN + * NO EVENT SHALL NCR BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS + * OF 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. + */ + +/* + * These are some utility functions created for convenience or to provide + * an interface that is similar to an existing interface. These are built + * only using the Transport Independant API, and have no knowledge of + * the internal implementation. + */ + +#ifdef XTHREADS +#include <X11/Xthreads.h> +#endif +#ifdef WIN32 +#include <X11/Xlibint.h> +#include <X11/Xwinsock.h> +#endif + +#ifdef X11_t + +/* + * These values come from X.h and Xauth.h, and MUST match them. Some + * of these values are also defined by the ChangeHost protocol message. + */ + +#define FamilyInternet 0 /* IPv4 */ +#define FamilyDECnet 1 +#define FamilyChaos 2 +#define FamilyInternet6 6 +#define FamilyAmoeba 33 +#define FamilyLocalHost 252 +#define FamilyKrb5Principal 253 +#define FamilyNetname 254 +#define FamilyLocal 256 +#define FamilyWild 65535 + +/* + * TRANS(ConvertAddress) converts a sockaddr based address to an + * X authorization based address. Some of this is defined as part of + * the ChangeHost protocol. The rest is just done in a consistent manner. + */ + +int +TRANS(ConvertAddress)(int *familyp, int *addrlenp, Xtransaddr **addrp) + +{ + + PRMSG(2,"ConvertAddress(%d,%d,%x)\n",*familyp,*addrlenp,*addrp); + + switch( *familyp ) + { +#if defined(TCPCONN) || defined(STREAMSCONN) + case AF_INET: + { + /* + * Check for the BSD hack localhost address 127.0.0.1. + * In this case, we are really FamilyLocal. + */ + + struct sockaddr_in saddr; + int len = sizeof(saddr.sin_addr.s_addr); + char *cp = (char *) &saddr.sin_addr.s_addr; + + memcpy (&saddr, *addrp, sizeof (struct sockaddr_in)); + + if ((len == 4) && (cp[0] == 127) && (cp[1] == 0) && + (cp[2] == 0) && (cp[3] == 1)) + { + *familyp=FamilyLocal; + } + else + { + *familyp=FamilyInternet; + *addrlenp=len; + memcpy(*addrp,&saddr.sin_addr,len); + } + break; + } + +#if defined(IPv6) && defined(AF_INET6) + case AF_INET6: + { + struct sockaddr_in6 saddr6; + + memcpy (&saddr6, *addrp, sizeof (struct sockaddr_in6)); + + if (IN6_IS_ADDR_LOOPBACK(&saddr6.sin6_addr)) + { + *familyp=FamilyLocal; + } + else if (IN6_IS_ADDR_V4MAPPED(&(saddr6.sin6_addr))) { + char *cp = (char *) &saddr6.sin6_addr.s6_addr[12]; + + if ((cp[0] == 127) && (cp[1] == 0) && + (cp[2] == 0) && (cp[3] == 1)) + { + *familyp=FamilyLocal; + } + else + { + *familyp=FamilyInternet; + *addrlenp = sizeof (struct in_addr); + memcpy(*addrp,cp,*addrlenp); + } + } + else + { + *familyp=FamilyInternet6; + *addrlenp=sizeof(saddr6.sin6_addr); + memcpy(*addrp,&saddr6.sin6_addr,sizeof(saddr6.sin6_addr)); + } + break; + } +#endif /* IPv6 */ +#endif /* defined(TCPCONN) || defined(STREAMSCONN) */ + + +#if defined(UNIXCONN) || defined(LOCALCONN) + case AF_UNIX: + { + *familyp=FamilyLocal; + break; + } +#endif /* defined(UNIXCONN) || defined(LOCALCONN) */ + +#if (defined(__SCO__) || defined(__UNIXWARE__)) && defined(LOCALCONN) + case 0: + { + *familyp=FamilyLocal; + break; + } +#endif + + default: + PRMSG(1,"ConvertAddress: Unknown family type %d\n", + *familyp, 0,0 ); + return -1; + } + + + if (*familyp == FamilyLocal) + { + /* + * In the case of a local connection, we need to get the + * host name for authentication. + */ + + char hostnamebuf[256]; + int len = TRANS(GetHostname) (hostnamebuf, sizeof hostnamebuf); + + if (len > 0) { + if (*addrp && *addrlenp < (len + 1)) + { + xfree ((char *) *addrp); + *addrp = NULL; + } + if (!*addrp) + *addrp = (Xtransaddr *) xalloc (len + 1); + if (*addrp) { + strcpy ((char *) *addrp, hostnamebuf); + *addrlenp = len; + } else { + *addrlenp = 0; + } + } + else + { + if (*addrp) + xfree ((char *) *addrp); + *addrp = NULL; + *addrlenp = 0; + } + } + + return 0; +} + +#endif /* X11_t */ + +#ifdef ICE_t + +#include <signal.h> + +char * +TRANS(GetMyNetworkId) (XtransConnInfo ciptr) + +{ + int family = ciptr->family; + char *addr = ciptr->addr; + char hostnamebuf[256]; + char *networkId = NULL; + char *transName = ciptr->transptr->TransName; + + if (gethostname (hostnamebuf, sizeof (hostnamebuf)) < 0) + { + return (NULL); + } + + switch (family) + { +#if defined(UNIXCONN) || defined(STREAMSCONN) || defined(LOCALCONN) + case AF_UNIX: + { + struct sockaddr_un *saddr = (struct sockaddr_un *) addr; + networkId = (char *) xalloc (3 + strlen (transName) + + strlen (hostnamebuf) + strlen (saddr->sun_path)); + sprintf (networkId, "%s/%s:%s", transName, + hostnamebuf, saddr->sun_path); + break; + } +#endif /* defined(UNIXCONN) || defined(STREAMSCONN) || defined(LOCALCONN) */ + +#if defined(TCPCONN) || defined(STREAMSCONN) + case AF_INET: +#if defined(IPv6) && defined(AF_INET6) + case AF_INET6: +#endif + { + struct sockaddr_in *saddr = (struct sockaddr_in *) addr; +#if defined(IPv6) && defined(AF_INET6) + struct sockaddr_in6 *saddr6 = (struct sockaddr_in6 *) addr; +#endif + int portnum; + char portnumbuf[10]; + + +#if defined(IPv6) && defined(AF_INET6) + if (family == AF_INET6) + portnum = ntohs (saddr6->sin6_port); + else +#endif + portnum = ntohs (saddr->sin_port); + + snprintf (portnumbuf, sizeof(portnumbuf), "%d", portnum); + networkId = (char *) xalloc (3 + strlen (transName) + + strlen (hostnamebuf) + strlen (portnumbuf)); + sprintf (networkId, "%s/%s:%s", transName, hostnamebuf, portnumbuf); + break; + } +#endif /* defined(TCPCONN) || defined(STREAMSCONN) */ + + + default: + break; + } + + return (networkId); +} + +#include <setjmp.h> +static jmp_buf env; + +#ifdef SIGALRM +static volatile int nameserver_timedout = 0; + +static +#ifdef RETSIGTYPE /* set by autoconf AC_TYPE_SIGNAL */ +RETSIGTYPE +#else /* Imake */ +#ifdef SIGNALRETURNSINT +int +#else +void +#endif +#endif +nameserver_lost(int sig) +{ + nameserver_timedout = 1; + longjmp (env, -1); + /* NOTREACHED */ +#ifdef SIGNALRETURNSINT + return -1; /* for picky compilers */ +#endif +} +#endif /* SIGALARM */ + + +char * +TRANS(GetPeerNetworkId) (XtransConnInfo ciptr) + +{ + int family = ciptr->family; + char *peer_addr = ciptr->peeraddr; + char *hostname; + char addrbuf[256]; + const char *addr = NULL; + + switch (family) + { + case AF_UNSPEC: +#if defined(UNIXCONN) || defined(STREAMSCONN) || defined(LOCALCONN) + case AF_UNIX: + { + if (gethostname (addrbuf, sizeof (addrbuf)) == 0) + addr = addrbuf; + break; + } +#endif /* defined(UNIXCONN) || defined(STREAMSCONN) || defined(LOCALCONN) */ + +#if defined(TCPCONN) || defined(STREAMSCONN) + case AF_INET: +#if defined(IPv6) && defined(AF_INET6) + case AF_INET6: +#endif + { + struct sockaddr_in *saddr = (struct sockaddr_in *) peer_addr; +#if defined(IPv6) && defined(AF_INET6) + struct sockaddr_in6 *saddr6 = (struct sockaddr_in6 *) peer_addr; +#endif + char *address; + int addresslen; +#ifdef XTHREADS_NEEDS_BYNAMEPARAMS + _Xgethostbynameparams hparams; +#endif + struct hostent * volatile hostp = NULL; + +#if defined(IPv6) && defined(AF_INET6) + if (family == AF_INET6) + { + address = (char *) &saddr6->sin6_addr; + addresslen = sizeof (saddr6->sin6_addr); + } + else +#endif + { + address = (char *) &saddr->sin_addr; + addresslen = sizeof (saddr->sin_addr); + } + +#ifdef SIGALRM + /* + * gethostbyaddr can take a LONG time if the host does not exist. + * Assume that if it does not respond in NAMESERVER_TIMEOUT seconds + * that something is wrong and do not make the user wait. + * gethostbyaddr will continue after a signal, so we have to + * jump out of it. + */ + + nameserver_timedout = 0; + signal (SIGALRM, nameserver_lost); + alarm (4); + if (setjmp(env) == 0) { +#endif + hostp = _XGethostbyaddr (address, addresslen, family, hparams); +#ifdef SIGALRM + } + alarm (0); +#endif + if (hostp != NULL) + addr = hostp->h_name; + else +#if defined(IPv6) && defined(AF_INET6) + addr = inet_ntop (family, address, addrbuf, sizeof (addrbuf)); +#else + addr = inet_ntoa (saddr->sin_addr); +#endif + break; + } + +#endif /* defined(TCPCONN) || defined(STREAMSCONN) */ + + + default: + return (NULL); + } + + + hostname = (char *) xalloc ( + strlen (ciptr->transptr->TransName) + strlen (addr) + 2); + strcpy (hostname, ciptr->transptr->TransName); + strcat (hostname, "/"); + if (addr) + strcat (hostname, addr); + + return (hostname); +} + +#endif /* ICE_t */ + + +#if defined(WIN32) && defined(TCPCONN) +int +TRANS(WSAStartup) (void) +{ + static WSADATA wsadata; + + PRMSG (2,"WSAStartup()\n", 0, 0, 0); + + if (!wsadata.wVersion && WSAStartup(MAKEWORD(2,2), &wsadata)) + return 1; + return 0; +} +#endif + + +static int +is_numeric (char *str) + +{ + int i; + + for (i = 0; i < (int) strlen (str); i++) + if (!isdigit (str[i])) + return (0); + + return (1); +} + +#ifdef TRANS_SERVER +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> + +#if !defined(S_IFLNK) && !defined(S_ISLNK) +#undef lstat +#define lstat(a,b) stat(a,b) +#endif + +#define FAIL_IF_NOMODE 1 +#define FAIL_IF_NOT_ROOT 2 +#define WARN_NO_ACCESS 4 + +/* + * We make the assumption that when the 'sticky' (t) bit is requested + * it's not save if the directory has non-root ownership or the sticky + * bit cannot be set and fail. + */ +static int +trans_mkdir(char *path, int mode) +{ + struct stat buf; + + if (lstat(path, &buf) != 0) { + if (errno != ENOENT) { + PRMSG(1, "mkdir: ERROR: (l)stat failed for %s (%d)\n", + path, errno, 0); + return -1; + } + /* Dir doesn't exist. Try to create it */ + +#ifndef WIN32 + /* + * 'sticky' bit requested: assume application makes + * certain security implications. If effective user ID + * is != 0: fail as we may not be able to meet them. + */ + if (geteuid() != 0) { + if (mode & 01000) { + PRMSG(1, "mkdir: ERROR: euid != 0," + "directory %s will not be created.\n", + path, 0, 0); +#ifdef FAIL_HARD + return -1; +#endif + } else { + PRMSG(1, "mkdir: Cannot create %s with root ownership\n", + path, 0, 0); + } + } +#endif + +#ifndef WIN32 + if (mkdir(path, mode) == 0) { + if (chmod(path, mode)) { + PRMSG(1, "mkdir: ERROR: Mode of %s should be set to %04o\n", + path, mode, 0); +#ifdef FAIL_HARD + return -1; +#endif + } +#else + if (mkdir(path) == 0) { +#endif + } else { + PRMSG(1, "mkdir: ERROR: Cannot create %s\n", + path, 0, 0); + return -1; + } + + return 0; + + } else { + if (S_ISDIR(buf.st_mode)) { + int updateOwner = 0; + int updateMode = 0; + int updatedOwner = 0; + int updatedMode = 0; + int status = 0; + /* Check if the directory's ownership is OK. */ + if (buf.st_uid != 0) + updateOwner = 1; + + /* + * Check if the directory's mode is OK. An exact match isn't + * required, just a mode that isn't more permissive than the + * one requested. + */ + if ((~mode) & 0077 & buf.st_mode) + updateMode = 1; + + /* + * If the directory is not writeable not everybody may + * be able to create sockets. Therefore warn if mode + * cannot be fixed. + */ + if ((~buf.st_mode) & 0022 & mode) { + updateMode = 1; + status |= WARN_NO_ACCESS; + } + + /* + * If 'sticky' bit is requested fail if owner isn't root + * as we assume the caller makes certain security implications + */ + if (mode & 01000) { + status |= FAIL_IF_NOT_ROOT; + if (!(buf.st_mode & 01000)) { + status |= FAIL_IF_NOMODE; + updateMode = 1; + } + } + +#ifdef HAS_FCHOWN + /* + * If fchown(2) and fchmod(2) are available, try to correct the + * directory's owner and mode. Otherwise it isn't safe to attempt + * to do this. + */ + if (updateMode || updateOwner) { + int fd = -1; + struct stat fbuf; + if ((fd = open(path, O_RDONLY)) != -1) { + if (fstat(fd, &fbuf) == -1) { + PRMSG(1, "mkdir: ERROR: fstat failed for %s (%d)\n", + path, errno, 0); + return -1; + } + /* + * Verify that we've opened the same directory as was + * checked above. + */ + if (!S_ISDIR(fbuf.st_mode) || + buf.st_dev != fbuf.st_dev || + buf.st_ino != fbuf.st_ino) { + PRMSG(1, "mkdir: ERROR: inode for %s changed\n", + path, 0, 0); + return -1; + } + if (updateOwner && fchown(fd, 0, 0) == 0) + updatedOwner = 1; + if (updateMode && fchmod(fd, mode) == 0) + updatedMode = 1; + close(fd); + } + } +#endif + + if (updateOwner && !updatedOwner) { +#ifdef FAIL_HARD + if (status & FAIL_IF_NOT_ROOT) { + PRMSG(1, "mkdir: ERROR: Owner of %s must be set to root\n", + path, 0, 0); + return -1; + } +#endif +#ifndef __APPLE_CC__ + PRMSG(1, "mkdir: Owner of %s should be set to root\n", + path, 0, 0); +#endif + } + + if (updateMode && !updatedMode) { +#ifdef FAIL_HARD + if (status & FAIL_IF_NOMODE) { + PRMSG(1, "mkdir: ERROR: Mode of %s must be set to %04o\n", + path, mode, 0); + return -1; + } +#endif + PRMSG(1, "mkdir: Mode of %s should be set to %04o\n", + path, mode, 0); + if (status & WARN_NO_ACCESS) { + PRMSG(1, "mkdir: this may cause subsequent errors\n", + 0, 0, 0); + } + } + return 0; + } + return -1; + } + + /* In all other cases, fail */ + return -1; +} + +#endif /* TRANS_SERVER */ |