diff options
Diffstat (limited to 'lib/libc/tests/gen/popen_test.c')
| -rw-r--r-- | lib/libc/tests/gen/popen_test.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/lib/libc/tests/gen/popen_test.c b/lib/libc/tests/gen/popen_test.c new file mode 100644 index 0000000..5c615b7 --- /dev/null +++ b/lib/libc/tests/gen/popen_test.c @@ -0,0 +1,251 @@ +/*- + * 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/param.h> +#include <sys/wait.h> +#include <errno.h> +#include <fcntl.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <atf-c.h> + +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 exp_flags, flags; + + flags = fcntl(fileno(fp), F_GETFD); + ATF_CHECK_MSG(flags != -1, "fcntl(F_GETFD) failed; errno=%d", errno); + if (flags == -1) + return; + if (strchr(mode, 'e') != NULL) + exp_flags = FD_CLOEXEC; + else + exp_flags = 0; + ATF_CHECK_MSG((flags & FD_CLOEXEC) == exp_flags, + "bad cloexec flag; %d != %d", flags, exp_flags); +} + +ATF_TC_WITHOUT_HEAD(popen_all_modes_test); +ATF_TC_BODY(popen_all_modes_test, tc) +{ + FILE *fp; + int i, status; + const char *mode; + const char *allmodes[] = { "r", "w", "r+", "re", "we", "r+e", "re+" }; + + for (i = 0; i < nitems(allmodes); i++) { + mode = allmodes[i]; + fp = popen("exit 7", mode); + ATF_CHECK_MSG(fp != NULL, "popen(, \"%s\") failed", mode); + if (fp == NULL) + continue; + check_cloexec(fp, mode); + status = pclose(fp); + ATF_CHECK_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 7, + "bad exit status (no I/O)"); + } +} + +ATF_TC_WITHOUT_HEAD(popen_rmodes_test); +ATF_TC_BODY(popen_rmodes_test, tc) +{ + FILE *fp; + const char *rmodes[] = { "r", "r+", "re", "r+e", "re+" }; + const char *mode; + char buf[80]; + int i, status; + + for (i = 0; i < nitems(rmodes); i++) { + mode = rmodes[i]; + fp = popen("exit 9", mode); + ATF_CHECK_MSG(fp != NULL, "popen(, \"%s\") failed", mode); + if (fp == NULL) + continue; + check_cloexec(fp, mode); + bool input_error_1 = !(fgetc(fp) != EOF || !feof(fp) || !ferror(fp)); + ATF_CHECK_MSG(!input_error_1, "input error 1"); + if (input_error_1) + continue; + status = pclose(fp); + ATF_CHECK_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 9, + "bad exit status (input)"); + } + + for (i = 0; i < nitems(rmodes); i++) { + char *sres; + mode = rmodes[i]; + fp = popen("echo hi there", mode); + ATF_CHECK_MSG(fp != NULL, "popen(, \"%s\") failed", mode); + if (fp == NULL) + continue; + check_cloexec(fp, mode); + ATF_CHECK_MSG((sres = fgets(buf, sizeof(buf), fp)) != NULL, + "Input error 2"); + if (sres != NULL) + ATF_CHECK_MSG(strcmp(buf, "hi there\n") == 0, + "Bad input 1"); + status = pclose(fp); + ATF_CHECK_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 0, + "Bad exit status (input)"); + } +} + +ATF_TC_WITHOUT_HEAD(popen_wmodes_test); +ATF_TC_BODY(popen_wmodes_test, tc) +{ + FILE *fp, *fp2; + const char *wmodes[] = { "w", "r+", "we", "r+e", "re+" }; + const char *mode; + struct sigaction act, oact; + int i, j, status; + + for (i = 0; i < nitems(wmodes); i++) { + mode = wmodes[i]; + fp = popen("read x && [ \"$x\" = abcd ]", mode); + ATF_CHECK_MSG(fp != NULL, "popen(, \"%s\") failed", mode); + if (fp == NULL) + continue; + check_cloexec(fp, mode); + ATF_CHECK_MSG(fputs("abcd\n", fp) != EOF, + "Output error 1"); + status = pclose(fp); + ATF_CHECK_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 0, + "Bad exit status (output)"); + } + + act.sa_handler = sigpipe_handler; + act.sa_flags = SA_RESTART; + sigemptyset(&act.sa_mask); + ATF_CHECK_MSG(sigaction(SIGPIPE, &act, &oact) != -1, + "sigaction() failed"); + for (i = 0; i < nitems(wmodes); i++) { + mode = wmodes[i]; + fp = popen("exit 88", mode); + ATF_CHECK_MSG(fp != NULL, "popen(, \"%s\") failed", mode); + if (fp == NULL) + continue; + check_cloexec(fp, mode); + got_sigpipe = 0; + while (fputs("abcd\n", fp) != EOF) + ; + ATF_CHECK_MSG(ferror(fp) && errno == EPIPE, "Expected EPIPE"); + ATF_CHECK_MSG(got_sigpipe, "Expected SIGPIPE"); + status = pclose(fp); + ATF_CHECK_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 88, + "Bad exit status (EPIPE)"); + } + ATF_CHECK_MSG(sigaction(SIGPIPE, &oact, NULL) != -1, + "sigaction() failed"); + + for (i = 0; i < nitems(wmodes); i++) { + for (j = 0; j < nitems(wmodes); j++) { + mode = wmodes[i]; + fp = popen("read x", mode); + ATF_CHECK_MSG(fp != NULL, + "popen(, \"%s\") failed", mode); + if (fp == NULL) + continue; + mode = wmodes[j]; + fp2 = popen("read x", mode); + ATF_CHECK_MSG(fp2 != NULL, + "popen(, \"%s\") failed", mode); + if (fp2 == NULL) { + pclose(fp); + continue; + } + /* If fp2 inherits fp's pipe, we will deadlock here. */ + status = pclose(fp); + ATF_CHECK_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 1, + "bad exit status (2 pipes)"); + status = pclose(fp2); + ATF_CHECK_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 1, + "bad exit status (2 pipes)"); + } + } +} + +ATF_TC_WITHOUT_HEAD(popen_rwmodes_test); +ATF_TC_BODY(popen_rwmodes_test, tc) +{ + const char *rwmodes[] = { "r+", "r+e", "re+" }; + FILE *fp; + const char *mode; + char *sres; + char buf[80]; + int i, ires, status; + + for (i = 0; i < nitems(rwmodes); i++) { + mode = rwmodes[i]; + fp = popen("read x && printf '%s\\n' \"Q${x#a}\"", mode); + ATF_CHECK_MSG(fp != NULL, "popen(, \"%s\") failed", mode); + if (fp == NULL) + continue; + check_cloexec(fp, mode); + ATF_CHECK_MSG((ires = fputs("abcd\n", fp)) != EOF, + "Output error 2"); + if (ires != EOF) { + sres = fgets(buf, sizeof(buf), fp); + ATF_CHECK_MSG(sres != NULL, "Input error 3"); + if (sres != NULL) + ATF_CHECK_MSG(strcmp(buf, "Qbcd\n") == 0, + "Bad input 2"); + } + status = pclose(fp); + ATF_CHECK_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 0, + "bad exit status (I/O)"); + } +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, popen_all_modes_test); + ATF_TP_ADD_TC(tp, popen_rmodes_test); + ATF_TP_ADD_TC(tp, popen_wmodes_test); + ATF_TP_ADD_TC(tp, popen_rwmodes_test); + + return (atf_no_error()); +} |
