https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=908e644b7ddf9aeb00bfb75a5998bc40df27c0be
commit 908e644b7ddf9aeb00bfb75a5998bc40df27c0be
Author: Jeremy Drake <cyg...@jdrake.com>
Date: Thu Jun 19 22:21:44 2025 -0700
Cygwin: testsuite: test posix_spawn_file_actions.
There are still more that could be tested, such as (f)chdir.
Signed-off-by: Jeremy Drake <cyg...@jdrake.com>
Diff:
---
winsup/testsuite/Makefile.am | 1 +
winsup/testsuite/winsup.api/posix_spawn/fds.c | 124 ++++++++++++++++++++++++++
2 files changed, 125 insertions(+)
diff --git a/winsup/testsuite/Makefile.am b/winsup/testsuite/Makefile.am
index b92532e4f..4b056bd5b 100644
--- a/winsup/testsuite/Makefile.am
+++ b/winsup/testsuite/Makefile.am
@@ -312,6 +312,7 @@ check_PROGRAMS = \
winsup.api/pthread/threadidafterfork \
winsup.api/pthread/tsd1 \
winsup.api/posix_spawn/errors \
+ winsup.api/posix_spawn/fds \
winsup.api/posix_spawn/signals \
winsup.api/posix_spawn/spawnp \
winsup.api/samples/sample-fail \
diff --git a/winsup/testsuite/winsup.api/posix_spawn/fds.c
b/winsup/testsuite/winsup.api/posix_spawn/fds.c
new file mode 100644
index 000000000..6e6e8c635
--- /dev/null
+++ b/winsup/testsuite/winsup.api/posix_spawn/fds.c
@@ -0,0 +1,124 @@
+#include "test.h"
+#include <fcntl.h>
+#include <limits.h>
+#include <spawn.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int handle_child (char *devfd, char *target)
+{
+ char buf[PATH_MAX];
+ ssize_t ret;
+
+ ret = readlink (devfd, buf, PATH_MAX);
+ if (ret < 0)
+ {
+ int err = errno;
+ if (err == ENOENT && !strcmp (target, "<ENOENT>"))
+ return 0;
+ error_at_line (1, err, __FILE__, __LINE__ - 6,
+ "ret = readlink (devfd, buf, PATH_MAX)");
+ }
+ testAssertMsg (ret < PATH_MAX, "Path too long for PATH_MAX buffer");
+ buf[ret] = '\0';
+ if (strcmp (target, buf))
+ error_at_line (1, 0, __FILE__, __LINE__ - 12,
+ "Target '%s' != expected '%s'", buf, target);
+
+ return 0;
+}
+
+int main (int argc, char **argv)
+{
+ posix_spawn_file_actions_t fa;
+ pid_t pid;
+ int status;
+ int fd, fdcloexec;
+ char buf[16];
+ char *childargv[] = {"fds", "--child", buf, "", NULL};
+
+ /* unbuffer stdout */
+ setvbuf(stdout, NULL, _IONBF, 0);
+
+ if (argc == 4 && !strcmp (argv[1], "--child"))
+ return handle_child (argv[2], argv[3]);
+
+ /* open file descriptors to test inheritance */
+ negError (fd = open ("/dev/null", O_RDONLY, 0644));
+ negError (fdcloexec = open ("/dev/full", O_RDONLY|O_CLOEXEC, 0644));
+
+ /* ensure fd is inherited by default */
+ sprintf (buf, "/dev/fd/%d", fd);
+ childargv[3] = "/dev/null";
+ errCode (posix_spawn (&pid, MYSELF, NULL, NULL, childargv, environ));
+ negError (waitpid (pid, &status, 0));
+ exitStatus (status, 0);
+
+ /* ensure CLOEXEC fd is closed */
+ sprintf (buf, "/dev/fd/%d", fdcloexec);
+ childargv[3] = "<ENOENT>";
+ errCode (posix_spawn (&pid, MYSELF, NULL, NULL, childargv, environ));
+ negError (waitpid (pid, &status, 0));
+ exitStatus (status, 0);
+
+ /* test posix_spawn_file_actions_addopen */
+ errCode (posix_spawn_file_actions_init (&fa));
+ errCode (posix_spawn_file_actions_addopen (&fa, 0, "/dev/zero", O_RDONLY,
+ 0644));
+ strcpy (buf, "/dev/fd/0");
+ childargv[3] = "/dev/zero";
+ errCode (posix_spawn (&pid, MYSELF, &fa, NULL, childargv, environ));
+ negError (waitpid (pid, &status, 0));
+ exitStatus (status, 0);
+ errCode (posix_spawn_file_actions_destroy (&fa));
+
+ /* test posix_spawn_file_actions_adddup2 */
+ errCode (posix_spawn_file_actions_init (&fa));
+ errCode (posix_spawn_file_actions_adddup2 (&fa, fd, 0));
+ childargv[3] = "/dev/null";
+ errCode (posix_spawn (&pid, MYSELF, &fa, NULL, childargv, environ));
+ negError (waitpid (pid, &status, 0));
+ exitStatus (status, 0);
+ errCode (posix_spawn_file_actions_destroy (&fa));
+
+ /* test posix_spawn_file_actions_adddup2 with CLOEXEC fd */
+ errCode (posix_spawn_file_actions_init (&fa));
+ errCode (posix_spawn_file_actions_adddup2 (&fa, fdcloexec, 0));
+ childargv[3] = "/dev/full";
+ errCode (posix_spawn (&pid, MYSELF, &fa, NULL, childargv, environ));
+ negError (waitpid (pid, &status, 0));
+ exitStatus (status, 0);
+ errCode (posix_spawn_file_actions_destroy (&fa));
+
+ /* test posix_spawn_file_actions_adddup2 with out to err */
+ errCode (posix_spawn_file_actions_init (&fa));
+ errCode (posix_spawn_file_actions_addopen (&fa, 1, "/dev/zero", O_WRONLY,
+ 0644));
+ errCode (posix_spawn_file_actions_adddup2 (&fa, 1, 2));
+ strcpy (buf, "/dev/fd/2");
+ childargv[3] = "/dev/zero";
+ errCode (posix_spawn (&pid, MYSELF, &fa, NULL, childargv, environ));
+ negError (waitpid (pid, &status, 0));
+ exitStatus (status, 0);
+ errCode (posix_spawn_file_actions_destroy (&fa));
+
+ /* test posix_spawn_file_actions_addclose */
+ errCode (posix_spawn_file_actions_init (&fa));
+ errCode (posix_spawn_file_actions_addclose (&fa, fd));
+ sprintf (buf, "/dev/fd/%d", fd);
+ childargv[3] = "<ENOENT>";
+ errCode (posix_spawn (&pid, MYSELF, &fa, NULL, childargv, environ));
+ negError (waitpid (pid, &status, 0));
+ exitStatus (status, 0);
+ errCode (posix_spawn_file_actions_destroy (&fa));
+
+ /* TODO: test new fds (open or dup2) not 0 through 2 */
+ /* TODO: test posix_spawn_file_actions_add(f)chdir */
+
+ negError (close (fd));
+ negError (close (fdcloexec));
+
+ return 0;
+}
