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Unix SMB/CIFS implementation.
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Copyright (C) Andrew Tridgell 1992-1998
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Copyright (C) Jeremy Allison 1998-2002
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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 3 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, see <http://www.gnu.org/licenses/>.
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#include "system/network.h"
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#include "system/filesys.h"
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The idea is that this file will eventually have wrappers around all
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important system calls in samba. The aims are:
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- to enable easier porting by putting OS dependent stuff in here
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- to allow for hooks into other "pseudo-filesystems"
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- to allow easier integration of things like the japanese extensions
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- to support the philosophy of Samba to expose the features of
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the OS within the SMB model. In general whatever file/printer/variable
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expansions/etc make sense to the OS should be acceptable to Samba.
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/**************************************************************************
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A wrapper for gethostbyname() that tries avoids looking up hostnames
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in the root domain, which can cause dial-on-demand links to come up for no
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****************************************************************************/
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_PUBLIC_ struct hostent *sys_gethostbyname(const char *name)
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#ifdef REDUCE_ROOT_DNS_LOOKUPS
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char query[256], hostname[256];
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/* Does this name have any dots in it? If so, make no change */
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if (strchr(name, '.'))
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return(gethostbyname(name));
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/* Get my hostname, which should have domain name
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attached. If not, just do the gethostname on the
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gethostname(hostname, sizeof(hostname) - 1);
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hostname[sizeof(hostname) - 1] = 0;
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if ((domain = strchr(hostname, '.')) == NULL)
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return(gethostbyname(name));
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/* Attach domain name to query and do modified query.
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If names too large, just do gethostname on the
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if((strlen(name) + strlen(domain)) >= sizeof(query))
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return(gethostbyname(name));
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slprintf(query, sizeof(query)-1, "%s%s", name, domain);
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return(gethostbyname(query));
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#else /* REDUCE_ROOT_DNS_LOOKUPS */
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return(gethostbyname(name));
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#endif /* REDUCE_ROOT_DNS_LOOKUPS */
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_PUBLIC_ struct in_addr sys_inet_makeaddr(int net, int host)
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in = inet_makeaddr(net, host);
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in2.s_addr = in.s_addr;
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/**************************************************************************
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Wrapper for fork. Ensures we clear our pid cache.
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****************************************************************************/
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static pid_t mypid = (pid_t)-1;
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_PUBLIC_ pid_t sys_fork(void)
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pid_t forkret = fork();
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if (forkret == (pid_t)0) {
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/* Child - reset mypid so sys_getpid does a system call. */
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/**************************************************************************
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Wrapper for getpid. Ensures we only do a system call *once*.
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****************************************************************************/
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_PUBLIC_ pid_t sys_getpid(void)
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if (mypid == (pid_t)-1)