xref: /freebsd/lib/libc/tests/stdio/getdelim_test.c (revision 559a218c9b257775fb249b67945fe4a05b7a6b9f)
11ee02192SEnji Cooper /*-
21ee02192SEnji Cooper  * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
3*8f8a7947SBryan Drewery  * Copyright (c) 2021 Dell EMC
41ee02192SEnji Cooper  * All rights reserved.
51ee02192SEnji Cooper  *
61ee02192SEnji Cooper  * Redistribution and use in source and binary forms, with or without
71ee02192SEnji Cooper  * modification, are permitted provided that the following conditions
81ee02192SEnji Cooper  * are met:
91ee02192SEnji Cooper  * 1. Redistributions of source code must retain the above copyright
101ee02192SEnji Cooper  *    notice, this list of conditions and the following disclaimer.
111ee02192SEnji Cooper  * 2. Redistributions in binary form must reproduce the above copyright
121ee02192SEnji Cooper  *    notice, this list of conditions and the following disclaimer in the
131ee02192SEnji Cooper  *    documentation and/or other materials provided with the distribution.
141ee02192SEnji Cooper  *
151ee02192SEnji Cooper  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
161ee02192SEnji Cooper  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
171ee02192SEnji Cooper  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
181ee02192SEnji Cooper  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
191ee02192SEnji Cooper  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
201ee02192SEnji Cooper  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
211ee02192SEnji Cooper  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
221ee02192SEnji Cooper  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
231ee02192SEnji Cooper  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
241ee02192SEnji Cooper  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
251ee02192SEnji Cooper  * SUCH DAMAGE.
261ee02192SEnji Cooper  */
271ee02192SEnji Cooper 
28*8f8a7947SBryan Drewery #include <sys/param.h>
29*8f8a7947SBryan Drewery #include <sys/types.h>
30*8f8a7947SBryan Drewery #include <sys/stat.h>
31*8f8a7947SBryan Drewery #include <sys/wait.h>
32*8f8a7947SBryan Drewery 
33*8f8a7947SBryan Drewery #include <fcntl.h>
341ee02192SEnji Cooper #include <errno.h>
351ee02192SEnji Cooper #include <stdio.h>
361ee02192SEnji Cooper #include <stdlib.h>
371ee02192SEnji Cooper #include <string.h>
381ee02192SEnji Cooper 
391ee02192SEnji Cooper #include <atf-c.h>
401ee02192SEnji Cooper 
411ee02192SEnji Cooper #define	CHUNK_MAX	10
421ee02192SEnji Cooper 
431ee02192SEnji Cooper /* The assertions depend on this string. */
441ee02192SEnji Cooper char apothegm[] = "All work and no play\0 makes Jack a dull boy.\n";
451ee02192SEnji Cooper 
461ee02192SEnji Cooper /*
471ee02192SEnji Cooper  * This is a neurotic reader function designed to give getdelim() a
481ee02192SEnji Cooper  * hard time. It reads through the string `apothegm' and returns a
491ee02192SEnji Cooper  * random number of bytes up to the requested length.
501ee02192SEnji Cooper  */
511ee02192SEnji Cooper static int
_reader(void * cookie,char * buf,int len)521ee02192SEnji Cooper _reader(void *cookie, char *buf, int len)
531ee02192SEnji Cooper {
541ee02192SEnji Cooper 	size_t *offp = cookie;
551ee02192SEnji Cooper 	size_t r;
561ee02192SEnji Cooper 
571ee02192SEnji Cooper 	r = random() % CHUNK_MAX + 1;
581ee02192SEnji Cooper 	if (len > r)
591ee02192SEnji Cooper 		len = r;
601ee02192SEnji Cooper 	if (len > sizeof(apothegm) - *offp)
611ee02192SEnji Cooper 		len = sizeof(apothegm) - *offp;
621ee02192SEnji Cooper 	memcpy(buf, apothegm + *offp, len);
631ee02192SEnji Cooper 	*offp += len;
641ee02192SEnji Cooper 	return (len);
651ee02192SEnji Cooper }
661ee02192SEnji Cooper 
671ee02192SEnji Cooper static FILE *
mkfilebuf(void)681ee02192SEnji Cooper mkfilebuf(void)
691ee02192SEnji Cooper {
701ee02192SEnji Cooper 	size_t *offp;
711ee02192SEnji Cooper 
721ee02192SEnji Cooper 	offp = malloc(sizeof(*offp));	/* XXX leak */
731ee02192SEnji Cooper 	*offp = 0;
741ee02192SEnji Cooper 	return (fropen(offp, _reader));
751ee02192SEnji Cooper }
761ee02192SEnji Cooper 
771ee02192SEnji Cooper ATF_TC_WITHOUT_HEAD(getline_basic);
ATF_TC_BODY(getline_basic,tc)781ee02192SEnji Cooper ATF_TC_BODY(getline_basic, tc)
791ee02192SEnji Cooper {
801ee02192SEnji Cooper 	FILE *fp;
811ee02192SEnji Cooper 	char *line;
821ee02192SEnji Cooper 	size_t linecap;
831ee02192SEnji Cooper 	int i;
841ee02192SEnji Cooper 
851ee02192SEnji Cooper 	srandom(0);
861ee02192SEnji Cooper 
871ee02192SEnji Cooper 	/*
881ee02192SEnji Cooper 	 * Test multiple times with different buffer sizes
891ee02192SEnji Cooper 	 * and different _reader() return values.
901ee02192SEnji Cooper 	 */
911ee02192SEnji Cooper 	errno = 0;
921ee02192SEnji Cooper 	for (i = 0; i < 8; i++) {
931ee02192SEnji Cooper 		fp = mkfilebuf();
941ee02192SEnji Cooper 		linecap = i;
951ee02192SEnji Cooper 		line = malloc(i);
961ee02192SEnji Cooper 		/* First line: the full apothegm */
971ee02192SEnji Cooper 		ATF_REQUIRE(getline(&line, &linecap, fp) == sizeof(apothegm) - 1);
981ee02192SEnji Cooper 		ATF_REQUIRE(memcmp(line, apothegm, sizeof(apothegm)) == 0);
991ee02192SEnji Cooper 		ATF_REQUIRE(linecap >= sizeof(apothegm));
1001ee02192SEnji Cooper 		/* Second line: the NUL terminator following the newline */
1011ee02192SEnji Cooper 		ATF_REQUIRE(getline(&line, &linecap, fp) == 1);
1021ee02192SEnji Cooper 		ATF_REQUIRE(line[0] == '\0' && line[1] == '\0');
1031ee02192SEnji Cooper 		/* Third line: EOF */
1041ee02192SEnji Cooper 		line[0] = 'X';
1051ee02192SEnji Cooper 		ATF_REQUIRE(getline(&line, &linecap, fp) == -1);
1061ee02192SEnji Cooper 		ATF_REQUIRE(line[0] == '\0');
1071ee02192SEnji Cooper 		free(line);
1081ee02192SEnji Cooper 		line = NULL;
1091ee02192SEnji Cooper 		ATF_REQUIRE(feof(fp));
1101ee02192SEnji Cooper 		ATF_REQUIRE(!ferror(fp));
1111ee02192SEnji Cooper 		fclose(fp);
1121ee02192SEnji Cooper 	}
1131ee02192SEnji Cooper 	ATF_REQUIRE(errno == 0);
1141ee02192SEnji Cooper }
1151ee02192SEnji Cooper 
1161ee02192SEnji Cooper ATF_TC_WITHOUT_HEAD(stream_error);
ATF_TC_BODY(stream_error,tc)1171ee02192SEnji Cooper ATF_TC_BODY(stream_error, tc)
1181ee02192SEnji Cooper {
1191ee02192SEnji Cooper 	char *line;
1201ee02192SEnji Cooper 	size_t linecap;
1211ee02192SEnji Cooper 
1221ee02192SEnji Cooper 	/* Make sure read errors are handled properly. */
1231ee02192SEnji Cooper 	line = NULL;
1241ee02192SEnji Cooper 	linecap = 0;
1251ee02192SEnji Cooper 	errno = 0;
1261ee02192SEnji Cooper 	ATF_REQUIRE(getline(&line, &linecap, stdout) == -1);
1271ee02192SEnji Cooper 	ATF_REQUIRE(errno == EBADF);
1281ee02192SEnji Cooper 	errno = 0;
1291ee02192SEnji Cooper 	ATF_REQUIRE(getdelim(&line, &linecap, 'X', stdout) == -1);
1301ee02192SEnji Cooper 	ATF_REQUIRE(errno == EBADF);
1311ee02192SEnji Cooper 	ATF_REQUIRE(ferror(stdout));
1321ee02192SEnji Cooper }
1331ee02192SEnji Cooper 
1341ee02192SEnji Cooper ATF_TC_WITHOUT_HEAD(invalid_params);
ATF_TC_BODY(invalid_params,tc)1351ee02192SEnji Cooper ATF_TC_BODY(invalid_params, tc)
1361ee02192SEnji Cooper {
1371ee02192SEnji Cooper 	FILE *fp;
1381ee02192SEnji Cooper 	char *line;
1391ee02192SEnji Cooper 	size_t linecap;
1401ee02192SEnji Cooper 
1411ee02192SEnji Cooper 	/* Make sure NULL linep or linecapp pointers are handled. */
1421ee02192SEnji Cooper 	fp = mkfilebuf();
1431ee02192SEnji Cooper 	ATF_REQUIRE(getline(NULL, &linecap, fp) == -1);
1441ee02192SEnji Cooper 	ATF_REQUIRE(errno == EINVAL);
1451ee02192SEnji Cooper 	ATF_REQUIRE(getline(&line, NULL, fp) == -1);
1461ee02192SEnji Cooper 	ATF_REQUIRE(errno == EINVAL);
1471ee02192SEnji Cooper 	ATF_REQUIRE(ferror(fp));
1481ee02192SEnji Cooper 	fclose(fp);
1491ee02192SEnji Cooper }
1501ee02192SEnji Cooper 
1511ee02192SEnji Cooper ATF_TC_WITHOUT_HEAD(eof);
ATF_TC_BODY(eof,tc)1521ee02192SEnji Cooper ATF_TC_BODY(eof, tc)
1531ee02192SEnji Cooper {
1541ee02192SEnji Cooper 	FILE *fp;
1551ee02192SEnji Cooper 	char *line;
1561ee02192SEnji Cooper 	size_t linecap;
1571ee02192SEnji Cooper 
1581ee02192SEnji Cooper 	/* Make sure getline() allocates memory as needed if fp is at EOF. */
1591ee02192SEnji Cooper 	errno = 0;
1601ee02192SEnji Cooper 	fp = mkfilebuf();
1611ee02192SEnji Cooper 	while (!feof(fp))	/* advance to EOF; can't fseek this stream */
1621ee02192SEnji Cooper 		getc(fp);
1631ee02192SEnji Cooper 	line = NULL;
1641ee02192SEnji Cooper 	linecap = 0;
1651ee02192SEnji Cooper 	printf("getline\n");
1661ee02192SEnji Cooper 	ATF_REQUIRE(getline(&line, &linecap, fp) == -1);
1671ee02192SEnji Cooper 	ATF_REQUIRE(line[0] == '\0');
1681ee02192SEnji Cooper 	ATF_REQUIRE(linecap > 0);
1691ee02192SEnji Cooper 	ATF_REQUIRE(errno == 0);
1701ee02192SEnji Cooper 	printf("feof\n");
1711ee02192SEnji Cooper 	ATF_REQUIRE(feof(fp));
1721ee02192SEnji Cooper 	ATF_REQUIRE(!ferror(fp));
1731ee02192SEnji Cooper 	fclose(fp);
1741ee02192SEnji Cooper }
1751ee02192SEnji Cooper 
1761ee02192SEnji Cooper ATF_TC_WITHOUT_HEAD(nul);
ATF_TC_BODY(nul,tc)1771ee02192SEnji Cooper ATF_TC_BODY(nul, tc)
1781ee02192SEnji Cooper {
1791ee02192SEnji Cooper 	FILE *fp;
1801ee02192SEnji Cooper 	char *line;
1811ee02192SEnji Cooper 	size_t linecap, n;
1821ee02192SEnji Cooper 
1830b6008d0SEnji Cooper 	errno = 0;
1841ee02192SEnji Cooper 	line = NULL;
1851ee02192SEnji Cooper 	linecap = 0;
1861ee02192SEnji Cooper 	/* Make sure a NUL delimiter works. */
1871ee02192SEnji Cooper 	fp = mkfilebuf();
1881ee02192SEnji Cooper 	n = strlen(apothegm);
1891ee02192SEnji Cooper 	printf("getdelim\n");
1901ee02192SEnji Cooper 	ATF_REQUIRE(getdelim(&line, &linecap, '\0', fp) == n + 1);
1911ee02192SEnji Cooper 	ATF_REQUIRE(strcmp(line, apothegm) == 0);
1921ee02192SEnji Cooper 	ATF_REQUIRE(line[n + 1] == '\0');
1931ee02192SEnji Cooper 	ATF_REQUIRE(linecap > n + 1);
1941ee02192SEnji Cooper 	n = strlen(apothegm + n + 1);
1951ee02192SEnji Cooper 	printf("getdelim 2\n");
1961ee02192SEnji Cooper 	ATF_REQUIRE(getdelim(&line, &linecap, '\0', fp) == n + 1);
1971ee02192SEnji Cooper 	ATF_REQUIRE(line[n + 1] == '\0');
1981ee02192SEnji Cooper 	ATF_REQUIRE(linecap > n + 1);
1991ee02192SEnji Cooper 	ATF_REQUIRE(errno == 0);
2001ee02192SEnji Cooper 	ATF_REQUIRE(!ferror(fp));
2011ee02192SEnji Cooper 	fclose(fp);
2021ee02192SEnji Cooper }
2031ee02192SEnji Cooper 
2041ee02192SEnji Cooper ATF_TC_WITHOUT_HEAD(empty_NULL_buffer);
ATF_TC_BODY(empty_NULL_buffer,tc)2051ee02192SEnji Cooper ATF_TC_BODY(empty_NULL_buffer, tc)
2061ee02192SEnji Cooper {
2071ee02192SEnji Cooper 	FILE *fp;
2081ee02192SEnji Cooper 	char *line;
2091ee02192SEnji Cooper 	size_t linecap;
2101ee02192SEnji Cooper 
2111ee02192SEnji Cooper 	/* Make sure NULL *linep and zero *linecapp are handled. */
2121ee02192SEnji Cooper 	fp = mkfilebuf();
2131ee02192SEnji Cooper 	line = NULL;
2141ee02192SEnji Cooper 	linecap = 42;
2151ee02192SEnji Cooper 	ATF_REQUIRE(getline(&line, &linecap, fp) == sizeof(apothegm) - 1);
2161ee02192SEnji Cooper 	ATF_REQUIRE(memcmp(line, apothegm, sizeof(apothegm)) == 0);
2171ee02192SEnji Cooper 	fp = mkfilebuf();
2181ee02192SEnji Cooper 	free(line);
2191ee02192SEnji Cooper 	line = malloc(100);
2201ee02192SEnji Cooper 	linecap = 0;
2211ee02192SEnji Cooper 	ATF_REQUIRE(getline(&line, &linecap, fp) == sizeof(apothegm) - 1);
2221ee02192SEnji Cooper 	ATF_REQUIRE(memcmp(line, apothegm, sizeof(apothegm)) == 0);
2231ee02192SEnji Cooper 	free(line);
2241ee02192SEnji Cooper 	ATF_REQUIRE(!ferror(fp));
2251ee02192SEnji Cooper 	fclose(fp);
2261ee02192SEnji Cooper }
2271ee02192SEnji Cooper 
228*8f8a7947SBryan Drewery static void
_ipc_read(int fd,char wait_c)229*8f8a7947SBryan Drewery _ipc_read(int fd, char wait_c)
230*8f8a7947SBryan Drewery {
231*8f8a7947SBryan Drewery 	char c;
232*8f8a7947SBryan Drewery 	ssize_t len;
233*8f8a7947SBryan Drewery 
234*8f8a7947SBryan Drewery 	c = 0;
235*8f8a7947SBryan Drewery 	while (c != wait_c) {
236*8f8a7947SBryan Drewery 		len = read(fd, &c, 1);
237*8f8a7947SBryan Drewery 		ATF_CHECK_MSG(len != 0,
238*8f8a7947SBryan Drewery 		    "EOF on IPC pipe while waiting. Did other side fail?");
239*8f8a7947SBryan Drewery 		ATF_CHECK_MSG(len == 1 || errno == EINTR,
240*8f8a7947SBryan Drewery 		    "read %zu bytes errno %d\n", len, errno);
241*8f8a7947SBryan Drewery 		if (len != 1 || errno != EINTR)
242*8f8a7947SBryan Drewery 			break;
243*8f8a7947SBryan Drewery 	}
244*8f8a7947SBryan Drewery }
245*8f8a7947SBryan Drewery 
246*8f8a7947SBryan Drewery static void
_ipc_write(int fd,char c)247*8f8a7947SBryan Drewery _ipc_write(int fd, char c)
248*8f8a7947SBryan Drewery {
249*8f8a7947SBryan Drewery 
250*8f8a7947SBryan Drewery 	while ((write(fd, &c, 1) != 1))
251*8f8a7947SBryan Drewery 		ATF_REQUIRE(errno == EINTR);
252*8f8a7947SBryan Drewery }
253*8f8a7947SBryan Drewery 
254*8f8a7947SBryan Drewery static void
ipc_wait(int ipcfd[2])255*8f8a7947SBryan Drewery ipc_wait(int ipcfd[2])
256*8f8a7947SBryan Drewery {
257*8f8a7947SBryan Drewery 
258*8f8a7947SBryan Drewery 	_ipc_read(ipcfd[0], '+');
259*8f8a7947SBryan Drewery 	/* Send ACK. */
260*8f8a7947SBryan Drewery 	_ipc_write(ipcfd[1], '-');
261*8f8a7947SBryan Drewery }
262*8f8a7947SBryan Drewery 
263*8f8a7947SBryan Drewery static void
ipc_wakeup(int ipcfd[2])264*8f8a7947SBryan Drewery ipc_wakeup(int ipcfd[2])
265*8f8a7947SBryan Drewery {
266*8f8a7947SBryan Drewery 
267*8f8a7947SBryan Drewery 	_ipc_write(ipcfd[1], '+');
268*8f8a7947SBryan Drewery 	/* Wait for ACK. */
269*8f8a7947SBryan Drewery 	_ipc_read(ipcfd[0], '-');
270*8f8a7947SBryan Drewery }
271*8f8a7947SBryan Drewery 
272*8f8a7947SBryan Drewery static void
_nonblock_eagain(int buf_mode)273*8f8a7947SBryan Drewery _nonblock_eagain(int buf_mode)
274*8f8a7947SBryan Drewery {
275*8f8a7947SBryan Drewery 	FILE *fp;
276*8f8a7947SBryan Drewery 	const char delim = '!';
277*8f8a7947SBryan Drewery 	const char *strs[] = {
278*8f8a7947SBryan Drewery 	    "first line partial!",
279*8f8a7947SBryan Drewery 	    "second line is sent in full!",
280*8f8a7947SBryan Drewery 	    "third line is sent partially!",
281*8f8a7947SBryan Drewery 	    "last line is sent in full!",
282*8f8a7947SBryan Drewery 	};
283*8f8a7947SBryan Drewery 	char *line;
284*8f8a7947SBryan Drewery 	size_t linecap, strslen[nitems(strs)];
285*8f8a7947SBryan Drewery 	ssize_t linelen;
286*8f8a7947SBryan Drewery 	int fd_fifo, flags, i, ipcfd[2], pipedes[2], pipedes2[2], status;
287*8f8a7947SBryan Drewery 	pid_t pid;
288*8f8a7947SBryan Drewery 
289*8f8a7947SBryan Drewery 	line = NULL;
290*8f8a7947SBryan Drewery 	linecap = 0;
291*8f8a7947SBryan Drewery 	for (i = 0; i < nitems(strslen); i++)
292*8f8a7947SBryan Drewery 		strslen[i] = strlen(strs[i]);
293*8f8a7947SBryan Drewery 	ATF_REQUIRE(pipe2(pipedes, O_CLOEXEC) == 0);
294*8f8a7947SBryan Drewery 	ATF_REQUIRE(pipe2(pipedes2, O_CLOEXEC) == 0);
295*8f8a7947SBryan Drewery 
296*8f8a7947SBryan Drewery 	(void)unlink("fifo");
297*8f8a7947SBryan Drewery 	ATF_REQUIRE(mkfifo("fifo", 0666) == 0);
298*8f8a7947SBryan Drewery 	ATF_REQUIRE((pid = fork()) >= 0);
299*8f8a7947SBryan Drewery 	if (pid == 0) {
300*8f8a7947SBryan Drewery 		close(pipedes[0]);
301*8f8a7947SBryan Drewery 		ipcfd[1] = pipedes[1];
302*8f8a7947SBryan Drewery 		ipcfd[0] = pipedes2[0];
303*8f8a7947SBryan Drewery 		close(pipedes2[1]);
304*8f8a7947SBryan Drewery 
305*8f8a7947SBryan Drewery 		ATF_REQUIRE((fd_fifo = open("fifo", O_WRONLY)) != -1);
306*8f8a7947SBryan Drewery 
307*8f8a7947SBryan Drewery 		/* Partial write. */
308*8f8a7947SBryan Drewery 		ATF_REQUIRE(write(fd_fifo, strs[0], strslen[0] - 3) ==
309*8f8a7947SBryan Drewery 		    strslen[0] - 3);
310*8f8a7947SBryan Drewery 		ipc_wakeup(ipcfd);
311*8f8a7947SBryan Drewery 
312*8f8a7947SBryan Drewery 		ipc_wait(ipcfd);
313*8f8a7947SBryan Drewery 		/* Finish off the first line. */
314*8f8a7947SBryan Drewery 		ATF_REQUIRE(write(fd_fifo,
315*8f8a7947SBryan Drewery 		    &(strs[0][strslen[0] - 3]), 3) == 3);
316*8f8a7947SBryan Drewery 		/* And include the second full line and a partial 3rd line. */
317*8f8a7947SBryan Drewery 		ATF_REQUIRE(write(fd_fifo, strs[1], strslen[1]) == strslen[1]);
318*8f8a7947SBryan Drewery 		ATF_REQUIRE(write(fd_fifo, strs[2], strslen[2] - 3) ==
319*8f8a7947SBryan Drewery 		    strslen[2] - 3);
320*8f8a7947SBryan Drewery 		ipc_wakeup(ipcfd);
321*8f8a7947SBryan Drewery 
322*8f8a7947SBryan Drewery 		ipc_wait(ipcfd);
323*8f8a7947SBryan Drewery 		/* Finish the partial write and partially send the last. */
324*8f8a7947SBryan Drewery 		ATF_REQUIRE(write(fd_fifo,
325*8f8a7947SBryan Drewery 		    &(strs[2][strslen[2] - 3]), 3) == 3);
326*8f8a7947SBryan Drewery 		ATF_REQUIRE(write(fd_fifo, strs[3], strslen[3] - 3) ==
327*8f8a7947SBryan Drewery 		    strslen[3] - 3);
328*8f8a7947SBryan Drewery 		ipc_wakeup(ipcfd);
329*8f8a7947SBryan Drewery 
330*8f8a7947SBryan Drewery 		ipc_wait(ipcfd);
331*8f8a7947SBryan Drewery 		/* Finish the write */
332*8f8a7947SBryan Drewery 		ATF_REQUIRE(write(fd_fifo,
333*8f8a7947SBryan Drewery 		    &(strs[3][strslen[3] - 3]), 3) == 3);
334*8f8a7947SBryan Drewery 		ipc_wakeup(ipcfd);
335*8f8a7947SBryan Drewery 		_exit(0);
336*8f8a7947SBryan Drewery 	}
337*8f8a7947SBryan Drewery 	ipcfd[0] = pipedes[0];
338*8f8a7947SBryan Drewery 	close(pipedes[1]);
339*8f8a7947SBryan Drewery 	close(pipedes2[0]);
340*8f8a7947SBryan Drewery 	ipcfd[1] = pipedes2[1];
341*8f8a7947SBryan Drewery 
342*8f8a7947SBryan Drewery 	ATF_REQUIRE((fp = fopen("fifo", "r")) != NULL);
343*8f8a7947SBryan Drewery 	setvbuf(fp, (char *)NULL, buf_mode, 0);
344*8f8a7947SBryan Drewery 	ATF_REQUIRE((flags = fcntl(fileno(fp), F_GETFL, 0)) != -1);
345*8f8a7947SBryan Drewery 	ATF_REQUIRE(fcntl(fileno(fp), F_SETFL, flags | O_NONBLOCK) >= 0);
346*8f8a7947SBryan Drewery 
347*8f8a7947SBryan Drewery 	/* Wait until the writer completes its partial write. */
348*8f8a7947SBryan Drewery 	ipc_wait(ipcfd);
349*8f8a7947SBryan Drewery 	ATF_REQUIRE_ERRNO(EAGAIN,
350*8f8a7947SBryan Drewery 	    (linelen = getdelim(&line, &linecap, delim, fp)) == -1);
351*8f8a7947SBryan Drewery 	ATF_REQUIRE_STREQ("", line);
352*8f8a7947SBryan Drewery 	ATF_REQUIRE(ferror(fp));
353*8f8a7947SBryan Drewery 	ATF_REQUIRE(!feof(fp));
354*8f8a7947SBryan Drewery 	clearerr(fp);
355*8f8a7947SBryan Drewery 	ipc_wakeup(ipcfd);
356*8f8a7947SBryan Drewery 
357*8f8a7947SBryan Drewery 	ipc_wait(ipcfd);
358*8f8a7947SBryan Drewery 	/*
359*8f8a7947SBryan Drewery 	 * Should now have the finished first line, a full second line,
360*8f8a7947SBryan Drewery 	 * and a partial third line.
361*8f8a7947SBryan Drewery 	 */
362*8f8a7947SBryan Drewery 	ATF_CHECK(getdelim(&line, &linecap, delim, fp) == strslen[0]);
363*8f8a7947SBryan Drewery 	ATF_REQUIRE_STREQ(strs[0], line);
364*8f8a7947SBryan Drewery 	ATF_REQUIRE(getdelim(&line, &linecap, delim, fp) == strslen[1]);
365*8f8a7947SBryan Drewery 	ATF_REQUIRE_STREQ(strs[1], line);
366*8f8a7947SBryan Drewery 
367*8f8a7947SBryan Drewery 	ATF_REQUIRE_ERRNO(EAGAIN,
368*8f8a7947SBryan Drewery 	    (linelen = getdelim(&line, &linecap, delim, fp)) == -1);
369*8f8a7947SBryan Drewery 	ATF_REQUIRE_STREQ("", line);
370*8f8a7947SBryan Drewery 	ATF_REQUIRE(ferror(fp));
371*8f8a7947SBryan Drewery 	ATF_REQUIRE(!feof(fp));
372*8f8a7947SBryan Drewery 	clearerr(fp);
373*8f8a7947SBryan Drewery 	ipc_wakeup(ipcfd);
374*8f8a7947SBryan Drewery 
375*8f8a7947SBryan Drewery 	/* Wait for the partial write to be completed and another to be done. */
376*8f8a7947SBryan Drewery 	ipc_wait(ipcfd);
377*8f8a7947SBryan Drewery 	ATF_REQUIRE((linelen = getdelim(&line, &linecap, delim, fp)) != -1);
378*8f8a7947SBryan Drewery 	ATF_REQUIRE(!ferror(fp));
379*8f8a7947SBryan Drewery 	ATF_REQUIRE(!feof(fp));
380*8f8a7947SBryan Drewery 	ATF_REQUIRE_STREQ(strs[2], line);
381*8f8a7947SBryan Drewery 	ATF_REQUIRE(linelen == strslen[2]);
382*8f8a7947SBryan Drewery 
383*8f8a7947SBryan Drewery 	ATF_REQUIRE_ERRNO(EAGAIN,
384*8f8a7947SBryan Drewery 	    (linelen = getdelim(&line, &linecap, delim, fp)) == -1);
385*8f8a7947SBryan Drewery 	ATF_REQUIRE_STREQ("", line);
386*8f8a7947SBryan Drewery 	ATF_REQUIRE(ferror(fp));
387*8f8a7947SBryan Drewery 	ATF_REQUIRE(!feof(fp));
388*8f8a7947SBryan Drewery 	clearerr(fp);
389*8f8a7947SBryan Drewery 	ipc_wakeup(ipcfd);
390*8f8a7947SBryan Drewery 
391*8f8a7947SBryan Drewery 	ipc_wait(ipcfd);
392*8f8a7947SBryan Drewery 	ATF_REQUIRE((linelen = getdelim(&line, &linecap, delim, fp)) != -1);
393*8f8a7947SBryan Drewery 	ATF_REQUIRE(!ferror(fp));
394*8f8a7947SBryan Drewery 	ATF_REQUIRE(!feof(fp));
395*8f8a7947SBryan Drewery 	ATF_REQUIRE_STREQ(strs[3], line);
396*8f8a7947SBryan Drewery 	ATF_REQUIRE(linelen == strslen[3]);
397*8f8a7947SBryan Drewery 
398*8f8a7947SBryan Drewery 	ATF_REQUIRE(waitpid(pid, &status, WEXITED) != -1);
399*8f8a7947SBryan Drewery 	ATF_REQUIRE(WIFEXITED(status));
400*8f8a7947SBryan Drewery 	ATF_REQUIRE(WEXITSTATUS(status) == 0);
401*8f8a7947SBryan Drewery }
402*8f8a7947SBryan Drewery 
403*8f8a7947SBryan Drewery ATF_TC_WITHOUT_HEAD(nonblock_eagain_buffered);
ATF_TC_BODY(nonblock_eagain_buffered,tc)404*8f8a7947SBryan Drewery ATF_TC_BODY(nonblock_eagain_buffered, tc)
405*8f8a7947SBryan Drewery {
406*8f8a7947SBryan Drewery 
407*8f8a7947SBryan Drewery 	_nonblock_eagain(_IOFBF);
408*8f8a7947SBryan Drewery }
409*8f8a7947SBryan Drewery 
410*8f8a7947SBryan Drewery ATF_TC_WITHOUT_HEAD(nonblock_eagain_unbuffered);
ATF_TC_BODY(nonblock_eagain_unbuffered,tc)411*8f8a7947SBryan Drewery ATF_TC_BODY(nonblock_eagain_unbuffered, tc)
412*8f8a7947SBryan Drewery {
413*8f8a7947SBryan Drewery 
414*8f8a7947SBryan Drewery 	_nonblock_eagain(_IONBF);
415*8f8a7947SBryan Drewery }
416*8f8a7947SBryan Drewery 
417*8f8a7947SBryan Drewery 
ATF_TP_ADD_TCS(tp)4181ee02192SEnji Cooper ATF_TP_ADD_TCS(tp)
4191ee02192SEnji Cooper {
4201ee02192SEnji Cooper 
4211ee02192SEnji Cooper 	ATF_TP_ADD_TC(tp, getline_basic);
4221ee02192SEnji Cooper 	ATF_TP_ADD_TC(tp, stream_error);
4231ee02192SEnji Cooper 	ATF_TP_ADD_TC(tp, eof);
4241ee02192SEnji Cooper 	ATF_TP_ADD_TC(tp, invalid_params);
4251ee02192SEnji Cooper 	ATF_TP_ADD_TC(tp, nul);
4261ee02192SEnji Cooper 	ATF_TP_ADD_TC(tp, empty_NULL_buffer);
427*8f8a7947SBryan Drewery 	ATF_TP_ADD_TC(tp, nonblock_eagain_unbuffered);
428*8f8a7947SBryan Drewery 	ATF_TP_ADD_TC(tp, nonblock_eagain_buffered);
4291ee02192SEnji Cooper 
4301ee02192SEnji Cooper 	return (atf_no_error());
4311ee02192SEnji Cooper }
432