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📄 Makefile(346 B)
📄 Makefile.m4(1.92 KB)
📄 README(4.42 KB)
📄 assert.c(4.13 KB)
📄 assert.html(13.86 KB)
📄 b-strcmp.c(3.4 KB)
📄 b-strl.c(5 KB)
📄 cdefs.html(2.39 KB)
📄 cf.c(1.97 KB)
📄 clock.c(13.89 KB)
📄 clrerr.c(872 B)
📄 config.c(4.47 KB)
📄 debug.c(8.91 KB)
📄 debug.html(7.68 KB)
📄 errstring.c(6.03 KB)
📄 exc.c(13.05 KB)
📄 exc.html(23.27 KB)
📄 fclose.c(3.13 KB)
📄 feof.c(961 B)
📄 ferror.c(932 B)
📄 fflush.c(3.1 KB)
📄 fget.c(2.37 KB)
📄 findfp.c(10.65 KB)
📄 flags.c(1.27 KB)
📄 fopen.c(8.3 KB)
📄 fpos.c(3.12 KB)
📄 fprintf.c(1.35 KB)
📄 fpurge.c(1.15 KB)
📄 fput.c(1.25 KB)
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📄 fscanf.c(1.34 KB)
📄 fseek.c(7.25 KB)
📄 fvwrite.c(6.24 KB)
📄 fvwrite.h(740 B)
📄 fwalk.c(1.41 KB)
📄 fwrite.c(1.54 KB)
📄 gen.html(910 B)
📄 get.c(1.12 KB)
📄 glue.h(731 B)
📄 heap.c(17.29 KB)
📄 heap.html(13.07 KB)
📄 index.html(5.95 KB)
📄 inet6_ntop.c(1.1 KB)
📄 io.html(26.6 KB)
📄 ldap.c(35.72 KB)
📄 local.h(9.42 KB)
📄 makebuf.c(3.36 KB)
📄 match.c(2.77 KB)
📄 mbdb.c(16.61 KB)
📄 memstat.c(5.13 KB)
📄 mpeix.c(13.84 KB)
📄 niprop.c(4.64 KB)
📄 notify.c(3.32 KB)
📄 put.c(1.61 KB)
📄 refill.c(7.09 KB)
📄 rewind.c(1.08 KB)
📄 rpool.c(11.54 KB)
📄 rpool.html(6.08 KB)
📄 sem.c(4.41 KB)
📄 setvbuf.c(4.2 KB)
📄 shm.c(2.62 KB)
📄 signal.c(6.75 KB)
📄 smstdio.c(6.14 KB)
📄 snprintf.c(2.29 KB)
📄 sscanf.c(2.26 KB)
📄 stdio.c(9.7 KB)
📄 strcasecmp.c(3.14 KB)
📄 strdup.c(2.79 KB)
📄 strerror.c(1.27 KB)
📄 strexit.c(2.76 KB)
📄 string.c(1.29 KB)
📄 stringf.c(1.77 KB)
📄 strio.c(9.18 KB)
📄 strl.c(7.52 KB)
📄 strrevcmp.c(1.61 KB)
📄 strto.c(5.45 KB)
📄 syslogio.c(4.11 KB)
📄 t-cf.c(934 B)
📄 t-event.c(1.79 KB)
📄 t-exc.c(2.75 KB)
📄 t-fget.c(1.71 KB)
📄 t-float.c(1.78 KB)
📄 t-fopen.c(875 B)
📄 t-heap.c(1.3 KB)
📄 t-inet6_ntop.c(1.4 KB)
📄 t-match.c(1.1 KB)
📄 t-memstat.c(2.17 KB)
📄 t-notify.c(1.81 KB)
📄 t-path.c(742 B)
📄 t-qic.c(5.43 KB)
📄 t-rpool.c(1.5 KB)
📄 t-scanf.c(1.38 KB)
📄 t-sem.c(5.85 KB)
📄 t-shm.c(4.42 KB)
📄 t-smstdio.c(1.55 KB)
📄 t-string.c(968 B)
📄 t-strio.c(775 B)
📄 t-strl.c(3.53 KB)
📄 t-strrevcmp.c(994 B)
📄 t-types.c(2.7 KB)
📄 test.c(2.73 KB)
📄 ungetc.c(3.93 KB)
📄 util.c(4.46 KB)
📄 vasprintf.c(2.91 KB)
📄 vfprintf.c(24.09 KB)
📄 vfscanf.c(18.76 KB)
📄 vprintf.c(999 B)
📄 vsnprintf.c(1.87 KB)
📄 wbuf.c(2.51 KB)
📄 wsetup.c(1.88 KB)
📄 xtrap.c(653 B)

Editing: notify.c

/*
 * Copyright (c) 2016 Proofpoint, Inc. and its suppliers.
 *	All rights reserved.
 *
 * By using this file, you agree to the terms and conditions set
 * forth in the LICENSE file which can be found at the top level of
 * the sendmail distribution.
 *
 */

#include <sm/gen.h>

#include <sys/types.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdbool.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>	/* for memset() */

#include <sm/conf.h>	/* FDSET_CAST */
#include <sm/fdset.h>
#include <sm/assert.h>
#include <sm/notify.h>

#if SM_NOTIFY_DEBUG
#define SM_DBG(p)	fprintf p
#else
#define SM_DBG(p)	
#endif

static int	Notifypipe[2];
#define NotifyRDpipe Notifypipe[0]
#define NotifyWRpipe Notifypipe[1]

#define CLOSEFD(fd) do { \
		if ((fd) != -1) {	\
			(void) close(fd);	\
			fd = - 1;	\
		}	\
	} while (0)	\

/*
**  SM_NOTIFY_INIT -- initialize notify system
**
**	Parameters:
**		flags -- ignored
**
**	Returns:
**		0: success
**		<0: -errno
*/

int
sm_notify_init(flags)
	int flags;
{
	if (pipe(Notifypipe) < 0)
		return -errno;
	return 0;
}

/*
**  SM_NOTIFY_START -- start notify system
**
**	Parameters:
**		owner -- owner.
**		flags -- currently ignored.
**
**	Returns:
**		0: success
**		<0: -errno
*/

int
sm_notify_start(owner, flags)
	bool owner;
	int flags;
{
	int r;

r = 0;
	if (owner)
		CLOSEFD(NotifyWRpipe);
	else
		CLOSEFD(NotifyRDpipe);
	return r;
}

/*
**  SM_NOTIFY_STOP -- stop notify system
**
**	Parameters:
**		owner -- owner.
**		flags -- currently ignored.
**
**	Returns:
**		0: success
**		<0: -errno
*/

int
sm_notify_stop(owner, flags)
	bool owner;
	int flags;
{
	if (owner)
		CLOSEFD(NotifyRDpipe);
	else
		CLOSEFD(NotifyWRpipe);
	return 0;
}

/*
**  SM_NOTIFY_SND -- send notification
**
**	Parameters:
**		buf -- where to write data
**		buflen -- len of buffer
**
**	Returns:
**		0: success
**		<0: -errno
*/

int
sm_notify_snd(buf, buflen)
	char *buf;
	size_t buflen;
{
	int r;
	int save_errno;

SM_REQUIRE(buf != NULL);
	SM_REQUIRE(buflen > 0);
	if (NotifyWRpipe < 0)
		return -EINVAL;

r = write(NotifyWRpipe, buf, buflen);
	save_errno = errno;
	SM_DBG((stderr, "write=%d, fd=%d, e=%d\n", r, NotifyWRpipe, save_errno));
	return r >= 0 ? 0 : -save_errno;
}

/*
**  SM_NOTIFY_RCV -- receive notification
**
**	Parameters:
**		buf -- where to write data
**		buflen -- len of buffer
**		tmo -- timeout
**
**	Returns:
**		0: success
**		<0: -errno
*/

int
sm_notify_rcv(buf, buflen, tmo)
	char *buf;
	size_t buflen;
	int tmo;
{
	int r;
	int save_errno;
	fd_set readfds;
	struct timeval timeout;

SM_REQUIRE(buf != NULL);
	SM_REQUIRE(buflen > 0);
	if (NotifyRDpipe < 0)
		return -EINVAL;
	FD_ZERO(&readfds);
	SM_FD_SET(NotifyRDpipe, &readfds);
	timeout.tv_sec = tmo;
	timeout.tv_usec = 0;

do {
		r = select(NotifyRDpipe + 1, FDSET_CAST &readfds, NULL, NULL, &timeout);
		save_errno = errno;
		SM_DBG((stderr, "select=%d, fd=%d, e=%d\n", r, NotifyRDpipe, save_errno));
	} while (r < 0 && save_errno == EINTR);

if (r <= 0)
	{
		SM_DBG((stderr, "select=%d, e=%d\n", r, save_errno));
		return -ETIMEDOUT;
	}

/* bogus... need to check again? */
	if (!FD_ISSET(NotifyRDpipe, &readfds))
		return -ETIMEDOUT;

r = read(NotifyRDpipe, buf, buflen);
	save_errno = errno;
	SM_DBG((stderr, "read=%d, e=%d\n", r, save_errno));
	if (r == 0)
		return -1;	/* ??? */
	if (r < 0)
		return -save_errno;
	return r;
}

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Editing: notify.c

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