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/* COVERAGE: recv */
#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>
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;
pid_t pid = 0;
char buf[1024];
fd_set rdfds;
struct timeval timeout;
/* On several platforms, glibc substitutes recvfrom() for
* recv(). We could assume that if SYS_recv is defined, we'll
* actually use recv(), but that isn't true on all platforms. So,
* we'll just accept recv() or recvfrom(). */
/* 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);
fd_null = open("/dev/null", O_WRONLY);
recv(-1, buf, sizeof(buf), 0);
//staptest// recv[[[[from]]]]? (-1, XXXX, 1024, 0x0[[[[, 0x0, 0x0]]]]?) = -NNNN (EBADF)
recv(fd_null, buf, sizeof(buf), MSG_DONTWAIT);
//staptest// recv[[[[from]]]]? (NNNN, XXXX, 1024, MSG_DONTWAIT[[[[, 0x0, 0x0]]]]?) = -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, else we won't detect EFAULT */
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, 0x0, 0x0, \[2.[0]+\], 0x0]]]]) = 1
recv(s, (void *)-1, sizeof(buf), 0);
//staptest// recv[[[[from]]]]? (NNNN, 0x[f]+, 1024, 0x0[[[[, 0x0, 0x0]]]]?) = -NNNN (EFAULT)
recv(s, buf, sizeof(buf), 0);
//staptest// recv[[[[from]]]]? (NNNN, XXXX, 1024, 0x0[[[[, 0x0, 0x0]]]]?) = 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
recv(s, buf, sizeof(buf), -1);
//staptest// recv[[[[from]]]]? (NNNN, XXXX, 1024, MSG_[^ ]+[[[[|XXXX, 0x0, 0x0]]]]?) = -NNNN
recv(s, buf, (size_t)-1, MSG_DONTWAIT);
#if __WORDSIZE == 64
//staptest// recv[[[[from]]]]? (NNNN, XXXX, 18446744073709551615, MSG_DONTWAIT[[[[, 0x0, 0x0]]]]?) = NNNN
#else
//staptest// recv[[[[from]]]]? (NNNN, XXXX, 4294967295, MSG_DONTWAIT[[[[, 0x0, 0x0]]]]?) = 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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