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/* COVERAGE: recvfrom */
#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; /* shared between start_server and do_child */
void do_child()
{
struct sockaddr_in fsin;
fd_set afds, rfds;
int nfds, cc, fd;
char c;
FD_ZERO(&afds);
FD_SET(sfd, &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);
}
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);
}
for (fd = 0; fd < nfds; ++fd) {
if (fd != sfd && FD_ISSET(fd, &rfds)) {
if ((cc = read(fd, &c, 1)) == 0) {
(void)close(fd);
FD_CLR(fd, &afds);
}
}
}
}
}
pid_t
start_server(struct sockaddr_in *sin0)
{
struct sockaddr_in sin1 = *sin0;
pid_t pid;
sfd = socket(PF_INET, SOCK_STREAM, 0);
if (sfd < 0)
return -1;
if (bind(sfd, (struct sockaddr *)&sin1, sizeof(sin1)) < 0)
return -1;
if (listen(sfd, 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[1024];
fd_set rdfds;
struct timeval timeout;
socklen_t fromlen;
/* initialize sockaddr's */
sin1.sin_family = AF_INET;
sin1.sin_port = htons((getpid() % 32768) + 11000);
sin1.sin_addr.s_addr = INADDR_ANY;
pid = start_server(&sin1);
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);
fd_null = open("/dev/null", O_WRONLY);
//staptest// [[[[open (!!!!openat (AT_FDCWD, ]]]]"/dev/null", O_WRONLY) = NNNN
recvfrom(-1, buf, sizeof(buf), 0, (struct sockaddr *)&from, &fromlen);
//staptest// recvfrom (-1, XXXX, 1024, 0x0, XXXX, XXXX) = -NNNN (EBADF)
recvfrom(fd_null, buf, sizeof(buf), MSG_DONTWAIT, (struct sockaddr *)&from,
&fromlen);
//staptest// recvfrom (NNNN, XXXX, 1024, MSG_DONTWAIT, XXXX, XXXX) = -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
recvfrom(s, buf, sizeof(buf), 0, (struct sockaddr *)-1, &fromlen);
#ifdef __s390__
//staptest// recvfrom (NNNN, XXXX, 1024, 0x0, 0x[7]?[f]+, XXXX) = 6
#else
//staptest// recvfrom (NNNN, XXXX, 1024, 0x0, 0x[f]+, XXXX) = 6
#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
recvfrom(s, buf, sizeof(buf), 0, (struct sockaddr *)&from,
(socklen_t *)-1);
#ifdef __s390__
//staptest// recvfrom (NNNN, XXXX, 1024, 0x0, XXXX, 0x[7]?[f]+) = -NNNN (EFAULT)
#else
//staptest// recvfrom (NNNN, XXXX, 1024, 0x0, XXXX, 0x[f]+) = -NNNN (EFAULT)
#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
recvfrom(s, (void *)-1, sizeof(buf), 0, (struct sockaddr *)&from,
&fromlen);
#ifdef __s390__
//staptest// recvfrom (NNNN, 0x[7]?[f]+, 1024, 0x0, XXXX, XXXX) = -NNNN (EFAULT)
#else
//staptest// recvfrom (NNNN, 0x[f]+, 1024, 0x0, XXXX, XXXX) = -NNNN (EFAULT)
#endif
recvfrom(s, buf, sizeof(buf), 0, (struct sockaddr *)&from, &fromlen);
//staptest// recvfrom (NNNN, XXXX, 1024, 0x0, XXXX, XXXX) = 6
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 arguments optional.
recvfrom(s, buf, sizeof(buf), -1, (struct sockaddr *)&from, &fromlen);
//staptest// recvfrom (NNNN, XXXX, 1024, MSG_[^ ]+[[[[|XXXX, XXXX, XXXX]]]]?) = -NNNN
recvfrom(s, buf, (size_t)-1, MSG_DONTWAIT, (struct sockaddr *)&from,
&fromlen);
#if __WORDSIZE == 64
//staptest// recvfrom (NNNN, XXXX, 18446744073709551615, MSG_DONTWAIT, XXXX, XXXX) = NNNN
#else
//staptest// recvfrom (NNNN, XXXX, 4294967295, MSG_DONTWAIT, XXXX, XXXX) = NNNN
#endif
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
return 0;
}
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