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/*
* Initially written by Yar Tikhiy <yar@freebsd.org> in PR 76398.
* Bug fixes and instrumentation by kib@freebsd.org.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <md5.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <atf-c.h>
#define NDATA 1000
#define DELAY 2
static void
hup(int signo __unused)
{
}
static int ndata, seq;
static void
setdata(int n)
{
ndata = n;
seq = 0;
}
static char *
getdata(void)
{
static char databuf[256];
static char xeof[] = "#";
if (seq > ndata)
return (NULL);
if (seq == ndata) {
seq++;
return (xeof);
}
sprintf(databuf, "%08d xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\n", seq++);
return (databuf);
}
ATF_TC_WITHOUT_HEAD(eintr_test);
ATF_TC_BODY(eintr_test, tc)
{
char c, digest0[33], digest[33], *p;
FILE *fp;
int i, s[2], total0, total;
MD5_CTX md5;
pid_t child;
struct sigaction sa;
MD5Init(&md5);
setdata(NDATA);
for (total0 = 0; (p = getdata()) != NULL; total0 += strlen(p))
MD5Update(&md5, p, strlen(p));
p = MD5End(&md5, digest0);
sa.sa_handler = hup;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
ATF_REQUIRE(sigaction(SIGHUP, &sa, NULL) == 0);
ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) == 0);
switch (child = fork()) {
case -1:
atf_tc_fail("fork failed %s", strerror(errno));
break;
case 0:
ATF_REQUIRE((fp = fdopen(s[0], "w")) != NULL);
close(s[1]);
setdata(NDATA);
while ((p = getdata())) {
for (; *p;) {
if (fputc(*p, fp) == EOF) {
if (errno == EINTR) {
clearerr(fp);
} else {
atf_tc_fail("fputc errno %s",
strerror(errno));
}
} else {
p++;
}
}
}
fclose(fp);
break;
default:
close(s[0]);
ATF_REQUIRE((fp = fdopen(s[1], "r")) != NULL);
sleep(DELAY);
ATF_REQUIRE(kill(child, SIGHUP) != -1);
sleep(DELAY);
MD5Init(&md5);
for (total = 0;;) {
i = fgetc(fp);
if (i == EOF) {
if (errno == EINTR) {
clearerr(fp);
} else {
atf_tc_fail("fgetc errno %s",
strerror(errno));
}
continue;
}
total++;
c = i;
MD5Update(&md5, &c, 1);
if (i == '#')
break;
}
MD5End(&md5, digest);
fclose(fp);
ATF_REQUIRE_MSG(total == total0,
"Total number of bytes read does not match: %d %d",
total, total0);
ATF_REQUIRE_MSG(strcmp(digest, digest0) == 0,
"Digests do not match %s %s", digest, digest0);
break;
}
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, eintr_test);
return (atf_no_error());
}
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