| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * Test Name: recvfrom01 |
| * |
| * Test Description: |
| * Verify that recvfrom() returns the proper errno for various failure cases |
| * |
| * Usage: <for command-line> |
| * recvfrom01 [-c n] [-e] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * HISTORY |
| * 07/2001 Ported by Wayne Boyer |
| * |
| * RESTRICTIONS: |
| * None. |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <sys/signal.h> |
| #include <sys/un.h> |
| |
| #include <netinet/in.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| char *TCID = "recvfrom01"; /* Test program identifier. */ |
| int testno; |
| |
| char buf[1024]; |
| int s; /* socket descriptor */ |
| struct sockaddr_in sin1, from; |
| static int sfd; /* shared between do_child and start_server */ |
| socklen_t fromlen; |
| |
| void do_child(void); |
| void setup(void); |
| void setup0(void); |
| void setup1(void); |
| void setup2(void); |
| void cleanup(void); |
| void cleanup0(void); |
| void cleanup1(void); |
| pid_t start_server(struct sockaddr_in *); |
| |
| struct test_case_t { /* test case structure */ |
| int domain; /* PF_INET, PF_UNIX, ... */ |
| int type; /* SOCK_STREAM, SOCK_DGRAM ... */ |
| int proto; /* protocol number (usually 0 = default) */ |
| void *buf; /* recv data buffer */ |
| size_t buflen; /* recv's 3rd argument */ |
| unsigned flags; /* recv's 4th argument */ |
| struct sockaddr *from; /* from address */ |
| socklen_t *salen; /* from address value/result buffer length */ |
| int retval; /* syscall return value */ |
| int experrno; /* expected errno */ |
| void (*setup) (void); |
| void (*cleanup) (void); |
| char *desc; |
| } tdat[] = { |
| /* 1 */ |
| { |
| PF_INET, SOCK_STREAM, 0, buf, sizeof(buf), 0, |
| (struct sockaddr *)&from, &fromlen, |
| -1, EBADF, setup0, cleanup0, "bad file descriptor"}, |
| /* 2 */ |
| { |
| 0, 0, 0, buf, sizeof(buf), 0, (struct sockaddr *)&from, |
| &fromlen, -1, ENOTSOCK, setup0, cleanup0, "invalid socket"}, |
| /* 3 */ |
| { |
| PF_INET, SOCK_STREAM, 0, (void *)buf, sizeof(buf), 0, |
| (struct sockaddr *)-1, &fromlen, |
| 0, ENOTSOCK, setup1, cleanup1, "invalid socket buffer"}, |
| /* 4 */ |
| { |
| PF_INET, SOCK_STREAM, 0, (void *)buf, sizeof(buf), -1, |
| (struct sockaddr *)&from, &fromlen, |
| -1, EINVAL, setup2, cleanup1, "invalid socket length"}, |
| /* 5 */ |
| { |
| PF_INET, SOCK_STREAM, 0, (void *)-1, sizeof(buf), 0, |
| (struct sockaddr *)&from, &fromlen, |
| -1, EFAULT, setup1, cleanup1, "invalid recv buffer"}, |
| /* 6 */ |
| { |
| PF_INET, SOCK_STREAM, 0, (void *)buf, sizeof(buf), -1, |
| (struct sockaddr *)&from, &fromlen, |
| -1, EINVAL, setup1, cleanup1, "invalid flags set"},}; |
| |
| int TST_TOTAL = sizeof(tdat) / sizeof(tdat[0]); /* Total number of test cases. */ |
| |
| int exp_enos[] = { EBADF, ENOTSOCK, EFAULT, EINVAL, 0 }; |
| |
| #ifdef UCLINUX |
| static char *argv0; |
| #endif |
| |
| int main(int argc, char *argv[]) |
| { |
| int lc; |
| char *msg; |
| |
| /* Parse standard options given to run the test. */ |
| if ((msg = parse_opts(argc, argv, NULL, NULL)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| #ifdef UCLINUX |
| argv0 = argv[0]; |
| maybe_run_child(&do_child, "d", &sfd); |
| #endif |
| |
| setup(); |
| |
| TEST_EXP_ENOS(exp_enos); |
| |
| for (lc = 0; TEST_LOOPING(lc); ++lc) { |
| tst_count = 0; |
| for (testno = 0; testno < TST_TOTAL; ++testno) { |
| tdat[testno].setup(); |
| |
| TEST(recvfrom(s, tdat[testno].buf, tdat[testno].buflen, |
| tdat[testno].flags, tdat[testno].from, |
| tdat[testno].salen)); |
| if (TEST_RETURN >= 0) |
| TEST_RETURN = 0; /* all nonzero equal here */ |
| if (TEST_RETURN != tdat[testno].retval || |
| (TEST_RETURN < 0 && |
| TEST_ERRNO != tdat[testno].experrno)) { |
| tst_resm(TFAIL, "%s ; returned" |
| " %ld (expected %d), errno %d (expected" |
| " %d)", tdat[testno].desc, |
| TEST_RETURN, tdat[testno].retval, |
| TEST_ERRNO, tdat[testno].experrno); |
| } else { |
| TEST_ERROR_LOG(TEST_ERRNO); |
| tst_resm(TPASS, "%s successful", |
| tdat[testno].desc); |
| } |
| tdat[testno].cleanup(); |
| } |
| } |
| cleanup(); |
| |
| tst_exit(); |
| } |
| |
| pid_t pid; |
| |
| void setup(void) |
| { |
| TEST_PAUSE; /* if -P option specified */ |
| |
| /* 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); |
| } |
| |
| void cleanup(void) |
| { |
| (void)kill(pid, SIGKILL); /* kill server */ |
| TEST_CLEANUP; |
| |
| } |
| |
| void setup0(void) |
| { |
| if (tdat[testno].experrno == EBADF) |
| s = 400; /* anything not an open file */ |
| else if ((s = open("/dev/null", O_WRONLY)) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, "open(/dev/null) failed"); |
| fromlen = sizeof(from); |
| } |
| |
| void cleanup0(void) |
| { |
| s = -1; |
| } |
| |
| void setup1(void) |
| { |
| fd_set rdfds; |
| struct timeval timeout; |
| int n; |
| |
| s = socket(tdat[testno].domain, tdat[testno].type, tdat[testno].proto); |
| if (s < 0) |
| tst_brkm(TBROK | TERRNO, cleanup, "socket() failed"); |
| if (tdat[testno].type == SOCK_STREAM && |
| connect(s, (struct sockaddr *)&sin1, sizeof(sin1)) < 0) { |
| tst_brkm(TBROK | TERRNO, cleanup, "connect failed"); |
| } |
| /* Wait for something to be readable, else we won't detect EFAULT on recv */ |
| FD_ZERO(&rdfds); |
| FD_SET(s, &rdfds); |
| timeout.tv_sec = 2; |
| timeout.tv_usec = 0; |
| n = select(s + 1, &rdfds, 0, 0, &timeout); |
| if (n != 1 || !FD_ISSET(s, &rdfds)) |
| tst_brkm(TBROK, cleanup, |
| "client setup1 failed - no message ready in 2 sec"); |
| fromlen = sizeof(from); |
| } |
| |
| void setup2(void) |
| { |
| setup1(); |
| fromlen = -1; |
| } |
| |
| void cleanup1(void) |
| { |
| (void)close(s); |
| s = -1; |
| } |
| |
| 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) { |
| tst_brkm(TBROK | TERRNO, cleanup, "server socket failed"); |
| return -1; |
| } |
| if (bind(sfd, (struct sockaddr *)&sin1, sizeof(sin1)) < 0) { |
| tst_brkm(TBROK | TERRNO, cleanup, "server bind failed"); |
| return -1; |
| } |
| if (listen(sfd, 10) < 0) { |
| tst_brkm(TBROK | TERRNO, cleanup, "server listen failed"); |
| return -1; |
| } |
| switch ((pid = FORK_OR_VFORK())) { |
| case 0: /* child */ |
| #ifdef UCLINUX |
| if (self_exec(argv0, "d", sfd) < 0) { |
| tst_brkm(TBROK, cleanup, "server self_exec failed"); |
| } |
| #else |
| do_child(); |
| #endif |
| break; |
| case -1: |
| tst_brkm(TBROK | TERRNO, cleanup, "server fork failed"); |
| /* fall through */ |
| default: /* parent */ |
| (void)close(sfd); |
| return pid; |
| } |
| |
| exit(1); |
| } |
| |
| void do_child() |
| { |
| struct sockaddr_in fsin; |
| fd_set afds, rfds; |
| int nfds, cc, fd; |
| |
| FD_ZERO(&afds); |
| FD_SET(sfd, &afds); |
| |
| nfds = getdtablesize(); |
| |
| /* 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, "hoser\n", 6); |
| } |
| for (fd = 0; fd < nfds; ++fd) |
| if (fd != sfd && FD_ISSET(fd, &rfds)) { |
| cc = read(fd, buf, sizeof(buf)); |
| if (cc == 0 || (cc < 0 && errno != EINTR)) { |
| (void)close(fd); |
| FD_CLR(fd, &afds); |
| } |
| } |
| } |
| } |