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0f1f0ceb95
Wed May 7 1997: Update for 1.9.17alpha1 release - 'browsefix release'
designed to make browsing across subnets work.
byteorder.h: Updated copyright to 1997.
charcnv.c: Updated copyright to 1997.
charset.c Updated copyright to 1997.
charset.h Updated copyright to 1997.
client.c Updated copyright to 1997.
clientutil.c Updated copyright to 1997.
dir.c Updated copyright to 1997.
fault.c Updated copyright to 1997.
includes.h Updated copyright to 1997.
interface.c Updated copyright to 1997.
ipc.c Updated copyright to 1997.
kanji.c Updated copyright to 1997.
kanji.h Updated copyright to 1997.
loadparm.c Updated copyright to 1997.
locking.c Updated copyright to 1997.
mangle.c Updated copyright to 1997.
message.c Updated copyright to 1997.
nameannounce.c
Made use of WINS subnet explicit.
Added reset_announce_timer() so announcement
can be made immediately when we become a master.
Expanded code to do sync with dmb.
namebrowse.c
Removed redundent checks for AM_MASTER in
sync code. Made use of WINS subnet explicit.
namedbname.c Made use of WINS subnet explicit.
namedbresp.c Made use of WINS subnet explicit.
namedbserver.c Made use of WINS subnet explicit.
namedbsubnet.c
Explicitly add workgroup to WINS subnet
when we become a dmb. Made use of WINS subnet explicit.
namedbwork.c
Made use of WINS subnet explicit. Removed
redundent check_work_servertype() function.
nameelect.c
Explicitly add workgroup to WINS subnet
when we become a master browser. Made use of WINS subnet explicit.
namelogon.c Updated copyright to 1997.
namepacket.c Updated copyright to 1997.
namequery.c Updated copyright to 1997.
nameresp.c
Made use of WINS subnet explicit. Made nmbd fail if
configured as master browser and one exists already.
nameserv.c
Made use of WINS subnet explicit. Remove redundent
logon server and domain master code.
nameserv.h Add emumerate subnet macros.
nameservreply.c Made use of WINS subnet explicit.
nameservresp.c Updated copyright to 1997.
namework.c
Made use of WINS subnet explicit. Updated code to
add sync browser entries to add subnet parameter.
nmbd.c
Added sanity check for misconfigured nmbd.
nmblib.c Updated copyright to 1997.
nmblookup.c Updated copyright to 1997.
nmbsync.c
Removed redundent AM_ANY_MASTER check.
params.c Updated copyright to 1997.
password.c Updated copyright to 1997.
pipes.c Updated copyright to 1997.
predict.c Updated copyright to 1997.
printing.c Updated copyright to 1997.
proto.h
Changed protos for new nmbd code.
quotas.c Updated copyright to 1997.
replace.c Updated copyright to 1997.
reply.c Updated copyright to 1997.
server.c Updated copyright to 1997.
shmem.c Updated copyright to 1997.
smb.h Updated copyright to 1997.
smbencrypt.c Updated copyright to 1997.
smbpasswd.c Updated copyright to 1997.
smbrun.c Updated copyright to 1997.
status.c Updated copyright to 1997.
system.c Updated copyright to 1997.
testparm.c Updated copyright to 1997.
testprns.c Updated copyright to 1997.
time.c Updated copyright to 1997.
trans2.c Updated copyright to 1997.
trans2.h Updated copyright to 1997.
uid.c Updated copyright to 1997.
username.c Updated copyright to 1997.
util.c Updated copyright to 1997.
version.h
Changed to 1.9.17alpha1.
(This used to be commit cf23a155a1)
98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
/*
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Unix SMB/Netbios implementation.
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Version 1.9.
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external program running routine
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Copyright (C) Andrew Tridgell 1992-1997
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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/*******************************************************************
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close the low 3 fd's and open dev/null in their place
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********************************************************************/
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static void close_fds(void)
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{
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int fd;
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int i;
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close(0); close(1); close(2);
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/* try and use up these file descriptors, so silly
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library routines writing to stdout etc won't cause havoc */
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for (i=0;i<3;i++) {
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fd = open("/dev/null",O_RDWR,0);
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if (fd < 0) fd = open("/dev/null",O_WRONLY,0);
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if (fd != i) return;
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}
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}
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/*
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This is a wrapper around the system() call to allow commands to run correctly
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as non root from a program which is switching between root and non-root
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It takes 3 arguments as uid,gid,command and runs command after
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becoming a non-root user */
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int main(int argc,char *argv[])
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{
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int uid,gid;
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close_fds();
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if (argc != 4) exit(2);
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uid = atoi(argv[1]);
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gid = atoi(argv[2]);
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/* first become root - we may need to do this in order to lose
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our privilages! */
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#ifdef USE_SETRES
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setresgid(0,0,0);
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setresuid(0,0,0);
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#else
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setuid(0);
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seteuid(0);
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#endif
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#ifdef USE_SETFS
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setfsuid(uid);
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setfsgid(gid);
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#endif
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#ifdef USE_SETRES
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setresgid(gid,gid,gid);
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setresuid(uid,uid,uid);
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#else
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setgid(gid);
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setegid(gid);
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setuid(uid);
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seteuid(uid);
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#endif
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/* paranoia :-) */
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if (getuid() != uid)
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return(3);
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if (geteuid() != getuid())
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return(4);
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/* this is to make sure that the system() call doesn't run forever */
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alarm(30);
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return(system(argv[3]));
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}
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