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/* COVERAGE: recvmmsg */
#define _GNU_SOURCE
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <signal.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/syscall.h>
#include <limits.h>
static int sfd, ufd; /* shared between start_server and do_child */
#define TM "123456789+"
void sender(int fd)
{
struct msghdr mh;
struct iovec iov[1];
/* Since sendmmsg() isn't available on RHEL6, even though
* recvmmsg() is available, just send 2 messages with sendmsg(). */
memset(&mh, 0, sizeof(mh));
/* set up msghdr */
iov[0].iov_base = TM;
iov[0].iov_len = sizeof(TM);
mh.msg_iov = &iov[0];
mh.msg_iovlen = 1;
/* do it */
(void)sendmsg(fd, &mh, 0);
(void)sendmsg(fd, &mh, 0);
}
void do_child()
{
struct sockaddr_in fsin;
struct sockaddr_un fsun;
fd_set afds, rfds;
int nfds, cc, fd;
FD_ZERO(&afds);
FD_SET(sfd, &afds);
FD_SET(ufd, &afds);
nfds = FD_SETSIZE;
/* accept connections until killed */
while (1) {
socklen_t fromlen;
memcpy(&rfds, &afds, sizeof(rfds));
if (select(nfds, &rfds, (fd_set *) 0, (fd_set *) 0,
(struct timeval *)0) < 0) {
if (errno != EINTR)
exit(1);
continue;
}
if (FD_ISSET(sfd, &rfds)) {
int newfd;
fromlen = sizeof(fsin);
newfd = accept(sfd, (struct sockaddr *)&fsin, &fromlen);
if (newfd >= 0)
FD_SET(newfd, &afds);
/* send something back */
(void)write(newfd, "XXXXX\n", 6);
}
if (FD_ISSET(ufd, &rfds)) {
int newfd;
fromlen = sizeof(fsun);
newfd = accept(ufd, (struct sockaddr *)&fsun, &fromlen);
if (newfd >= 0)
FD_SET(newfd, &afds);
}
for (fd = 0; fd < nfds; ++fd) {
if (fd != sfd && fd != ufd && FD_ISSET(fd, &rfds)) {
char rbuf[1024];
cc = read(fd, rbuf, sizeof(rbuf));
if (cc && rbuf[0] == 'R')
sender(fd);
if (cc == 0 || (cc < 0 && errno != EINTR)) {
(void)close(fd);
FD_CLR(fd, &afds);
}
}
}
}
}
pid_t
start_server(struct sockaddr_in *ssin, struct sockaddr_un *ssun)
{
pid_t pid;
sfd = socket(PF_INET, SOCK_STREAM, 0);
if (sfd < 0)
return -1;
if (bind(sfd, (struct sockaddr *)ssin, sizeof(*ssin)) < 0)
return -1;
if (listen(sfd, 10) < 0)
return -1;
/* set up UNIX-domain socket */
ufd = socket(PF_UNIX, SOCK_STREAM, 0);
if (ufd < 0)
return -1;
if (bind(ufd, (struct sockaddr *)ssun, sizeof(*ssun)))
return -1;
if (listen(ufd, 10) < 0)
return -1;
switch (pid = fork()) {
case 0: /* child */
alarm(30);
do_child();
break;
case -1: /* fall through */
default: /* parent */
(void)close(sfd);
return pid;
}
return -1;
}
int main()
{
int s, fd_null;
struct sockaddr_in sin1, sin2, sin4, from;
pid_t pid = 0;
char buf[2][1024];
fd_set rdfds;
struct timeval timeout;
socklen_t fromlen;
struct mmsghdr msgs[2];
struct iovec iov[2];
struct sockaddr_un sun1;
char tmpsunpath[1024];
struct timespec tim = {0, 20000};
/* initialize sockaddr's */
sin1.sin_family = AF_INET;
sin1.sin_port = htons((getpid() % 32768) + 11000);
sin1.sin_addr.s_addr = INADDR_ANY;
(void)strcpy(tmpsunpath, "udsockXXXXXX");
s = mkstemp(tmpsunpath);
close(s);
unlink(tmpsunpath);
sun1.sun_family = AF_UNIX;
strcpy(sun1.sun_path, tmpsunpath);
pid = start_server(&sin1, &sun1);
sin2.sin_family = AF_INET;
/* this port must be unused! */
sin2.sin_port = htons((getpid() % 32768) + 10000);
sin2.sin_addr.s_addr = INADDR_ANY;
sin4.sin_family = 47; /* bogus address family */
sin4.sin_port = 0;
sin4.sin_addr.s_addr = htonl(0x0AFFFEFD);
fromlen = sizeof(from);
memset(msgs, 0, sizeof(msgs));
iov[0].iov_base = buf[0];
iov[0].iov_len = sizeof(buf[0]);
msgs[0].msg_hdr.msg_iov = &iov[0];
msgs[0].msg_hdr.msg_iovlen = 1;
iov[1].iov_base = buf[1];
iov[1].iov_len = sizeof(buf[1]);
msgs[1].msg_hdr.msg_iov = &iov[1];
msgs[1].msg_hdr.msg_iovlen = 1;
fd_null = open("/dev/null", O_WRONLY);
//staptest// [[[[open (!!!!openat (AT_FDCWD, ]]]]"/dev/null", O_WRONLY) = NNNN
recvmmsg(-1, msgs, 2, 0, NULL);
//staptest// recvmmsg (-1, XXXX, 2, 0x0, NULL) = -NNNN (EBADF)
recvmmsg(fd_null, msgs, 2, MSG_DONTWAIT, NULL);
//staptest// recvmmsg (NNNN, XXXX, 2, MSG_DONTWAIT, NULL) = -NNNN (ENOTSOCK)
s = socket(PF_INET, SOCK_STREAM, 0);
//staptest// socket (PF_INET, SOCK_STREAM, IPPROTO_IP) = NNNN
connect(s, (struct sockaddr *)&sin1, sizeof(sin1));
//staptest// connect (NNNN, {AF_INET, 0.0.0.0, NNNN}, 16) = 0
/* Wait for something to be readable */
FD_ZERO(&rdfds);
FD_SET(s, &rdfds);
timeout.tv_sec = 2;
timeout.tv_usec = 0;
select(s + 1, &rdfds, 0, 0, &timeout);
//staptest// [[[[select (NNNN, XXXX, 0x[0]+, 0x[0]+, [2\.[0]+]!!!!pselect6 (NNNN, XXXX, 0x[0]+, 0x[0]+, [2\.[0]+], 0x0]]]]) = 1
// Starting with glibc-2.23.90-19.fc25, this causes a SEGFAULT, so
// we'll skip it.
#if !__GLIBC_PREREQ(2, 23)
recvmmsg(s, (struct mmsghdr *)-1, 2, 0, NULL);
#ifdef __s390__
//staptest// recvmmsg (NNNN, 0x[7]?[f]+, 2, 0x0, NULL) = -NNNN (EFAULT)
#else
//staptest// recvmmsg (NNNN, 0x[f]+, 2, 0x0, NULL) = -NNNN (EFAULT)
#endif
#endif
close(s);
//staptest// close (NNNN) = 0
s = socket(PF_INET, SOCK_STREAM, 0);
//staptest// socket (PF_INET, SOCK_STREAM, IPPROTO_IP) = NNNN
connect(s, (struct sockaddr *)&sin1, sizeof(sin1));
//staptest// connect (NNNN, {AF_INET, 0.0.0.0, NNNN}, 16) = 0
/* Wait for something to be readable */
FD_ZERO(&rdfds);
FD_SET(s, &rdfds);
timeout.tv_sec = 2;
timeout.tv_usec = 0;
select(s + 1, &rdfds, 0, 0, &timeout);
//staptest// [[[[select (NNNN, XXXX, 0x[0]+, 0x[0]+, [2\.[0]+]!!!!pselect6 (NNNN, XXXX, 0x[0]+, 0x[0]+, [2\.[0]+], 0x0]]]]) = 1
// Note that the exact failure return value can differ here, so
// we'll just ignore it. Also note that on a 32-bit kernel (i686
// for instance), MAXSTRINGLEN is only 256. Passing a -1 as the
// flags value can produce a string that will cause argstr to get
// too big. So, we'll make the end of the argument optional.
recvmmsg(s, msgs, 2, -1, NULL);
//staptest// recvmmsg (NNNN, XXXX, 2, MSG_[^ ]+[[[[|XXXX, NULL]]]]?) = -NNNN
close(s);
//staptest// close (NNNN) = 0
s = socket(PF_UNIX, SOCK_STREAM, 0);
//staptest// socket (PF_LOCAL, SOCK_STREAM, 0) = NNNN
connect(s, (struct sockaddr *)&sun1, sizeof(sun1));
//staptest// connect (NNNN, {AF_UNIX, "[^"]+"}, 110) = 0
// We don't want to wait for -1 vectors, since we'd be waiting for
// a long time...
recvmmsg(s, msgs, -1, MSG_DONTWAIT, NULL);
//staptest// recvmmsg (NNNN, XXXX, 4294967295, MSG_DONTWAIT, NULL) = -NNNN (EAGAIN)
recvmmsg(s, msgs, 2, MSG_DONTWAIT, (struct timespec *)-1);
#ifdef __s390__
//staptest// recvmmsg (NNNN, XXXX, 2, MSG_DONTWAIT, 0x[7]?[f]+) = -NNNN (EFAULT)
#else
//staptest// recvmmsg (NNNN, XXXX, 2, MSG_DONTWAIT, 0x[f]+) = -NNNN (EFAULT)
#endif
close(s);
//staptest// close (NNNN) = 0
s = socket(PF_UNIX, SOCK_STREAM, 0);
//staptest// socket (PF_LOCAL, SOCK_STREAM, 0) = NNNN
connect(s, (struct sockaddr *)&sun1, sizeof(sun1));
//staptest// connect (NNNN, {AF_UNIX, "[^"]+"}, 110) = 0
write(s, "R", 1);
//staptest// write (NNNN, "R", 1) = 1
/* Wait for something to be readable */
FD_ZERO(&rdfds);
FD_SET(s, &rdfds);
timeout.tv_sec = 2;
timeout.tv_usec = 0;
select(s + 1, &rdfds, 0, 0, &timeout);
//staptest// [[[[select (NNNN, XXXX, 0x[0]+, 0x[0]+, [2\.[0]+]!!!!pselect6 (NNNN, XXXX, 0x[0]+, 0x[0]+, [2\.[0]+], 0x0]]]]) = 1
recvmmsg(s, msgs, 2, MSG_DONTWAIT, NULL);
//staptest// recvmmsg (NNNN, XXXX, 2, MSG_DONTWAIT, NULL) = NNNN
close(s);
//staptest// close (NNNN) = 0
s = socket(PF_UNIX, SOCK_STREAM, 0);
//staptest// socket (PF_LOCAL, SOCK_STREAM, 0) = NNNN
connect(s, (struct sockaddr *)&sun1, sizeof(sun1));
//staptest// connect (NNNN, {AF_UNIX, "[^"]+"}, 110) = 0
write(s, "R", 1);
//staptest// write (NNNN, "R", 1) = 1
/* Wait for something to be readable */
FD_ZERO(&rdfds);
FD_SET(s, &rdfds);
timeout.tv_sec = 2;
timeout.tv_usec = 0;
select(s + 1, &rdfds, 0, 0, &timeout);
//staptest// [[[[select (NNNN, XXXX, 0x[0]+, 0x[0]+, [2\.[0]+]!!!!pselect6 (NNNN, XXXX, 0x[0]+, 0x[0]+, [2\.[0]+], 0x0]]]]) = 1
recvmmsg(s, msgs, 2, MSG_DONTWAIT, &tim);
//staptest// recvmmsg (NNNN, XXXX, 2, MSG_DONTWAIT, \[0.000020000\]) = NNNN
close(s);
//staptest// close (NNNN) = 0
close(fd_null);
//staptest// close (NNNN) = 0
if (pid > 0)
(void)kill(pid, SIGKILL); /* kill server */
//staptest// kill (NNNN, SIGKILL) = 0
(void)unlink(tmpsunpath);
return 0;
}
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