Author: jilles
Date: Mon May 20 13:05:51 2013
New Revision: 250825
URL: http://svnweb.freebsd.org/changeset/base/250825
Log:
Add a test program for popen().
Added:
head/tools/regression/lib/libc/gen/test-popen.c (contents, props changed)
Modified:
head/tools/regression/lib/libc/gen/Makefile
Modified: head/tools/regression/lib/libc/gen/Makefile
==============================================================================
--- head/tools/regression/lib/libc/gen/Makefile Mon May 20 07:10:43 2013
(r250824)
+++ head/tools/regression/lib/libc/gen/Makefile Mon May 20 13:05:51 2013
(r250825)
@@ -1,7 +1,7 @@
# $FreeBSD$
TESTS= test-arc4random test-fmtcheck test-fmtmsg test-fnmatch \
- test-fpclassify test-ftw test-posix_spawn test-wordexp
+ test-fpclassify test-ftw test-popen test-posix_spawn test-wordexp
.PHONY: tests
tests: ${TESTS}
Added: head/tools/regression/lib/libc/gen/test-popen.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/regression/lib/libc/gen/test-popen.c Mon May 20 13:05:51
2013 (r250825)
@@ -0,0 +1,227 @@
+/*-
+ * Copyright (c) 2013 Jilles Tjoelker
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Limited test program for popen() as specified by IEEE Std. 1003.1-2008,
+ * with BSD extensions.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/wait.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static int failures;
+static volatile sig_atomic_t got_sigpipe;
+
+static void
+sigpipe_handler(int sig __unused)
+{
+ got_sigpipe = 1;
+}
+
+static void
+check_cloexec(FILE *fp, const char *mode)
+{
+ int flags;
+
+ flags = fcntl(fileno(fp), F_GETFD);
+ if (flags == -1)
+ fprintf(stderr, "fcntl(F_GETFD) failed\n"), failures++;
+ else if ((flags & FD_CLOEXEC) !=
+ (strchr(mode, 'e') != NULL ? FD_CLOEXEC : 0))
+ fprintf(stderr, "Bad cloexec flag\n"), failures++;
+}
+
+int
+main(int argc, char *argv[])
+{
+ FILE *fp, *fp2;
+ int i, j, status;
+ const char *mode;
+ const char *allmodes[] = { "r", "w", "r+" };
+ const char *rmodes[] = { "r", "r+" };
+ const char *wmodes[] = { "w", "r+" };
+ const char *rwmodes[] = { "r+" };
+ char buf[80];
+ struct sigaction act, oact;
+
+ for (i = 0; i < sizeof(allmodes) / sizeof(allmodes[0]); i++) {
+ mode = allmodes[i];
+ fp = popen("exit 7", mode);
+ if (fp == NULL) {
+ fprintf(stderr, "popen(, \"%s\") failed", mode);
+ failures++;
+ continue;
+ }
+ check_cloexec(fp, mode);
+ status = pclose(fp);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 7)
+ fprintf(stderr, "Bad exit status (no I/O)\n"),
failures++;
+ }
+
+ for (i = 0; i < sizeof(rmodes) / sizeof(rmodes[0]); i++) {
+ mode = rmodes[i];
+ fp = popen("exit 9", mode);
+ if (fp == NULL) {
+ fprintf(stderr, "popen(, \"%s\") failed", mode);
+ failures++;
+ continue;
+ }
+ check_cloexec(fp, mode);
+ if (fgetc(fp) != EOF || !feof(fp) || ferror(fp))
+ fprintf(stderr, "Input error 1\n"), failures++;
+ status = pclose(fp);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 9)
+ fprintf(stderr, "Bad exit status (input)\n"),
failures++;
+ }
+
+ for (i = 0; i < sizeof(rmodes) / sizeof(rmodes[0]); i++) {
+ mode = rmodes[i];
+ fp = popen("echo hi there", mode);
+ if (fp == NULL) {
+ fprintf(stderr, "popen(, \"%s\") failed", mode);
+ failures++;
+ continue;
+ }
+ check_cloexec(fp, mode);
+ if (fgets(buf, sizeof(buf), fp) == NULL)
+ fprintf(stderr, "Input error 2\n"), failures++;
+ else if (strcmp(buf, "hi there\n") != 0)
+ fprintf(stderr, "Bad input 1\n"), failures++;
+ status = pclose(fp);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
+ fprintf(stderr, "Bad exit status (input)\n"),
failures++;
+ }
+
+ for (i = 0; i < sizeof(wmodes) / sizeof(wmodes[0]); i++) {
+ mode = wmodes[i];
+ fp = popen("read x && [ \"$x\" = abcd ]", mode);
+ if (fp == NULL) {
+ fprintf(stderr, "popen(, \"%s\") failed", mode);
+ failures++;
+ continue;
+ }
+ check_cloexec(fp, mode);
+ if (fputs("abcd\n", fp) == EOF)
+ fprintf(stderr, "Output error 1\n"), failures++;
+ status = pclose(fp);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
+ fprintf(stderr, "Bad exit status (output)\n"),
failures++;
+ }
+
+ act.sa_handler = sigpipe_handler;
+ act.sa_flags = SA_RESTART;
+ sigemptyset(&act.sa_mask);
+ if (sigaction(SIGPIPE, &act, &oact) == -1)
+ fprintf(stderr, "sigaction() failed\n"), failures++;
+ for (i = 0; i < sizeof(wmodes) / sizeof(wmodes[0]); i++) {
+ mode = wmodes[i];
+ fp = popen("exit 88", mode);
+ if (fp == NULL) {
+ fprintf(stderr, "popen(, \"%s\") failed", mode);
+ failures++;
+ continue;
+ }
+ check_cloexec(fp, mode);
+ got_sigpipe = 0;
+ while (fputs("abcd\n", fp) != EOF)
+ ;
+ if (!ferror(fp) || errno != EPIPE)
+ fprintf(stderr, "Expected EPIPE\n"), failures++;
+ if (!got_sigpipe)
+ fprintf(stderr, "Expected SIGPIPE\n"), failures++;
+ status = pclose(fp);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 88)
+ fprintf(stderr, "Bad exit status (EPIPE)\n"),
failures++;
+ }
+ if (sigaction(SIGPIPE, &oact, NULL) == -1)
+ fprintf(stderr, "sigaction() failed\n"), failures++;
+
+ for (i = 0; i < sizeof(rwmodes) / sizeof(rwmodes[0]); i++) {
+ mode = rwmodes[i];
+ fp = popen("read x && printf '%s\\n' \"Q${x#a}\"", mode);
+ if (fp == NULL) {
+ fprintf(stderr, "popen(, \"%s\") failed", mode);
+ failures++;
+ continue;
+ }
+ check_cloexec(fp, mode);
+ if (fputs("abcd\n", fp) == EOF)
+ fprintf(stderr, "Output error 2\n"), failures++;
+ if (fgets(buf, sizeof(buf), fp) == NULL)
+ fprintf(stderr, "Input error 3\n"), failures++;
+ else if (strcmp(buf, "Qbcd\n") != 0)
+ fprintf(stderr, "Bad input 2\n"), failures++;
+ status = pclose(fp);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
+ fprintf(stderr, "Bad exit status (I/O)\n"), failures++;
+ }
+
+ for (i = 0; i < sizeof(wmodes) / sizeof(wmodes[0]); i++) {
+ for (j = 0; j < sizeof(wmodes) / sizeof(wmodes[0]); j++) {
+ mode = wmodes[i];
+ fp = popen("read x", mode);
+ if (fp == NULL) {
+ fprintf(stderr, "popen(, \"%s\") failed", mode);
+ failures++;
+ continue;
+ }
+ mode = wmodes[j];
+ fp2 = popen("read x", mode);
+ if (fp2 == NULL) {
+ fprintf(stderr, "popen(, \"%s\") failed", mode);
+ failures++;
+ pclose(fp);
+ continue;
+ }
+ /* If fp2 inherits fp's pipe, we will deadlock here. */
+ status = pclose(fp);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 1) {
+ fprintf(stderr, "Bad exit status (2 pipes)\n");
+ failures++;
+ }
+ status = pclose(fp2);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 1) {
+ fprintf(stderr, "Bad exit status (2 pipes)\n");
+ failures++;
+ }
+ }
+ }
+
+ if (failures == 0)
+ printf("PASS popen()\n");
+
+ return (failures != 0);
+}
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