Merge branch 'main' into find2fdfind2fd

39 files changed, 380 insertions, 0 deletions

diff --git a/build/has/acl-get-entry.c b/build/has/acl-get-entry.c
new file mode 100644
index 0000000..3cce771
--- /dev/null
+++ b/build/has/acl-get-entry.c
@@ -0,0 +1,8 @@
+#include <sys/types.h>
+#include <sys/acl.h>
+
+int main(void) {
+	acl_t acl = acl_get_file(".", ACL_TYPE_DEFAULT);
+	acl_entry_t entry;
+	return acl_get_entry(acl, ACL_FIRST_ENTRY, &entry);
+}
diff --git a/build/has/acl-get-file.c b/build/has/acl-get-file.c
new file mode 100644
index 0000000..89fbf23
--- /dev/null
+++ b/build/has/acl-get-file.c
@@ -0,0 +1,8 @@
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/acl.h>
+
+int main(void) {
+	acl_t acl = acl_get_file(".", ACL_TYPE_DEFAULT);
+	return acl == (acl_t)NULL;
+}
diff --git a/build/has/acl-get-tag-type.c b/build/has/acl-get-tag-type.c
new file mode 100644
index 0000000..2901956
--- /dev/null
+++ b/build/has/acl-get-tag-type.c
@@ -0,0 +1,10 @@
+#include <string.h>
+#include <sys/types.h>
+#include <sys/acl.h>
+
+int main(void) {
+	acl_entry_t entry;
+	memset(&entry, 0, sizeof(entry));
+	acl_tag_t tag;
+	return acl_get_tag_type(entry, &tag);
+}
diff --git a/build/has/acl-is-trivial-np.c b/build/has/acl-is-trivial-np.c
new file mode 100644
index 0000000..9ca9fc7
--- /dev/null
+++ b/build/has/acl-is-trivial-np.c
@@ -0,0 +1,12 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <sys/types.h>
+#include <sys/acl.h>
+
+int main(void) {
+	acl_t acl = acl_get_fd(3);
+	int trivial;
+	acl_is_trivial_np(acl, &trivial);
+	return 0;
+}
diff --git a/build/has/acl-trivial.c b/build/has/acl-trivial.c
new file mode 100644
index 0000000..7efc838
--- /dev/null
+++ b/build/has/acl-trivial.c
@@ -0,0 +1,8 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <sys/acl.h>
+
+int main(void) {
+	return acl_trivial(".");
+}
diff --git a/build/has/aligned-alloc.c b/build/has/aligned-alloc.c
new file mode 100644
index 0000000..4460038
--- /dev/null
+++ b/build/has/aligned-alloc.c
@@ -0,0 +1,8 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stdlib.h>
+
+int main(void) {
+	return !aligned_alloc(_Alignof(void *), sizeof(void *));
+}
diff --git a/build/has/confstr.c b/build/has/confstr.c
new file mode 100644
index 0000000..58280b4
--- /dev/null
+++ b/build/has/confstr.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <unistd.h>
+
+int main(void) {
+	confstr(_CS_PATH, NULL, 0);
+	return 0;
+}
diff --git a/build/has/extattr-get-file.c b/build/has/extattr-get-file.c
new file mode 100644
index 0000000..ac9cf96
--- /dev/null
+++ b/build/has/extattr-get-file.c
@@ -0,0 +1,10 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/extattr.h>
+
+int main(void) {
+	return extattr_get_file("file", EXTATTR_NAMESPACE_USER, "xattr", NULL, 0);
+}
diff --git a/build/has/extattr-get-link.c b/build/has/extattr-get-link.c
new file mode 100644
index 0000000..c35be5b
--- /dev/null
+++ b/build/has/extattr-get-link.c
@@ -0,0 +1,10 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/extattr.h>
+
+int main(void) {
+	return extattr_get_link("link", EXTATTR_NAMESPACE_USER, "xattr", NULL, 0);
+}
diff --git a/build/has/extattr-list-file.c b/build/has/extattr-list-file.c
new file mode 100644
index 0000000..e68a8bb
--- /dev/null
+++ b/build/has/extattr-list-file.c
@@ -0,0 +1,10 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/extattr.h>
+
+int main(void) {
+	return extattr_list_file("file", EXTATTR_NAMESPACE_USER, NULL, 0);
+}
diff --git a/build/has/extattr-list-link.c b/build/has/extattr-list-link.c
new file mode 100644
index 0000000..49f0ec2
--- /dev/null
+++ b/build/has/extattr-list-link.c
@@ -0,0 +1,10 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/extattr.h>
+
+int main(void) {
+	return extattr_list_link("link", EXTATTR_NAMESPACE_USER, NULL, 0);
+}
diff --git a/build/has/fdclosedir.c b/build/has/fdclosedir.c
new file mode 100644
index 0000000..f4ad1f5
--- /dev/null
+++ b/build/has/fdclosedir.c
@@ -0,0 +1,8 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <dirent.h>
+
+int main(void) {
+	return fdclosedir(opendir("."));
+}
diff --git a/build/has/getdents.c b/build/has/getdents.c
new file mode 100644
index 0000000..579898f
--- /dev/null
+++ b/build/has/getdents.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <dirent.h>
+
+int main(void) {
+	char buf[1024];
+	return getdents(3, (void *)buf, sizeof(buf));
+}
diff --git a/build/has/getdents64-syscall.c b/build/has/getdents64-syscall.c
new file mode 100644
index 0000000..7642d93
--- /dev/null
+++ b/build/has/getdents64-syscall.c
@@ -0,0 +1,11 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <dirent.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+int main(void) {
+	char buf[1024];
+	return syscall(SYS_getdents64, 3, (void *)buf, sizeof(buf));
+}
diff --git a/build/has/getdents64.c b/build/has/getdents64.c
new file mode 100644
index 0000000..d8e8062
--- /dev/null
+++ b/build/has/getdents64.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <dirent.h>
+
+int main(void) {
+	char buf[1024];
+	return getdents64(3, (void *)buf, sizeof(buf));
+}
diff --git a/build/has/getmntent-1.c b/build/has/getmntent-1.c
new file mode 100644
index 0000000..9854dcd
--- /dev/null
+++ b/build/has/getmntent-1.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <mntent.h>
+#include <stdio.h>
+
+int main(void) {
+	return !getmntent(stdin);
+}
diff --git a/build/has/getmntent-2.c b/build/has/getmntent-2.c
new file mode 100644
index 0000000..71f0220
--- /dev/null
+++ b/build/has/getmntent-2.c
@@ -0,0 +1,10 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stdio.h>
+#include <sys/mnttab.h>
+
+int main(void) {
+	struct mnttab mnt;
+	return getmntent(stdin, &mnt);
+}
diff --git a/build/has/getmntinfo.c b/build/has/getmntinfo.c
new file mode 100644
index 0000000..90ef5fb
--- /dev/null
+++ b/build/has/getmntinfo.c
@@ -0,0 +1,10 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+
+int main(void) {
+	return getmntinfo(NULL, MNT_WAIT);
+}
diff --git a/build/has/getprogname-gnu.c b/build/has/getprogname-gnu.c
new file mode 100644
index 0000000..6b97c5e
--- /dev/null
+++ b/build/has/getprogname-gnu.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <errno.h>
+
+int main(void) {
+	const char *str = program_invocation_short_name;
+	return str[0];
+}
diff --git a/build/has/getprogname.c b/build/has/getprogname.c
new file mode 100644
index 0000000..83dc8e8
--- /dev/null
+++ b/build/has/getprogname.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stdlib.h>
+
+int main(void) {
+	const char *str = getprogname();
+	return str[0];
+}
diff --git a/build/has/max-align-t.c b/build/has/max-align-t.c
new file mode 100644
index 0000000..96165ce
--- /dev/null
+++ b/build/has/max-align-t.c
@@ -0,0 +1,8 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stddef.h>
+
+int main(void) {
+	return _Alignof(max_align_t);
+}
diff --git a/build/has/pipe2.c b/build/has/pipe2.c
new file mode 100644
index 0000000..4cb43b5
--- /dev/null
+++ b/build/has/pipe2.c
@@ -0,0 +1,10 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <fcntl.h>
+#include <unistd.h>
+
+int main(void) {
+	int fds[2];
+	return pipe2(fds, O_CLOEXEC);
+}
diff --git a/build/has/posix-spawn-addfchdir-np.c b/build/has/posix-spawn-addfchdir-np.c
new file mode 100644
index 0000000..b870a53
--- /dev/null
+++ b/build/has/posix-spawn-addfchdir-np.c
@@ -0,0 +1,11 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <spawn.h>
+
+int main(void) {
+	posix_spawn_file_actions_t actions;
+	posix_spawn_file_actions_init(&actions);
+	posix_spawn_file_actions_addfchdir_np(&actions, 3);
+	return 0;
+}
diff --git a/build/has/posix-spawn-addfchdir.c b/build/has/posix-spawn-addfchdir.c
new file mode 100644
index 0000000..c52ff81
--- /dev/null
+++ b/build/has/posix-spawn-addfchdir.c
@@ -0,0 +1,11 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <spawn.h>
+
+int main(void) {
+	posix_spawn_file_actions_t actions;
+	posix_spawn_file_actions_init(&actions);
+	posix_spawn_file_actions_addfchdir(&actions, 3);
+	return 0;
+}
diff --git a/build/has/st-acmtim.c b/build/has/st-acmtim.c
new file mode 100644
index 0000000..d687ab0
--- /dev/null
+++ b/build/has/st-acmtim.c
@@ -0,0 +1,12 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <sys/stat.h>
+
+int main(void) {
+	struct stat sb = {0};
+	unsigned int a = sb.st_atim.tv_sec;
+	unsigned int c = sb.st_ctim.tv_sec;
+	unsigned int m = sb.st_mtim.tv_sec;
+	return a + c + m;
+}
diff --git a/build/has/st-acmtimespec.c b/build/has/st-acmtimespec.c
new file mode 100644
index 0000000..f747bc0
--- /dev/null
+++ b/build/has/st-acmtimespec.c
@@ -0,0 +1,12 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <sys/stat.h>
+
+int main(void) {
+	struct stat sb = {0};
+	unsigned int a = sb.st_atimespec.tv_sec;
+	unsigned int c = sb.st_ctimespec.tv_sec;
+	unsigned int m = sb.st_mtimespec.tv_sec;
+	return a + c + m;
+}
diff --git a/build/has/st-birthtim.c b/build/has/st-birthtim.c
new file mode 100644
index 0000000..4964571
--- /dev/null
+++ b/build/has/st-birthtim.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <sys/stat.h>
+
+int main(void) {
+	struct stat sb = {0};
+	return sb.st_birthtim.tv_sec;
+}
diff --git a/build/has/st-birthtimespec.c b/build/has/st-birthtimespec.c
new file mode 100644
index 0000000..91a613f
--- /dev/null
+++ b/build/has/st-birthtimespec.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <sys/stat.h>
+
+int main(void) {
+	struct stat sb = {0};
+	return sb.st_birthtimespec.tv_sec;
+}
diff --git a/build/has/st-flags.c b/build/has/st-flags.c
new file mode 100644
index 0000000..b1d0c32
--- /dev/null
+++ b/build/has/st-flags.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <sys/stat.h>
+
+int main(void) {
+	struct stat sb = {0};
+	return sb.st_flags;
+}
diff --git a/build/has/statx-syscall.c b/build/has/statx-syscall.c
new file mode 100644
index 0000000..87ec869
--- /dev/null
+++ b/build/has/statx-syscall.c
@@ -0,0 +1,13 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <fcntl.h>
+#include <linux/stat.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+int main(void) {
+	struct statx sb;
+	syscall(SYS_statx, AT_FDCWD, ".", 0, STATX_BASIC_STATS, &sb);
+	return 0;
+}
diff --git a/build/has/statx.c b/build/has/statx.c
new file mode 100644
index 0000000..65f1674
--- /dev/null
+++ b/build/has/statx.c
@@ -0,0 +1,11 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <fcntl.h>
+#include <sys/stat.h>
+
+int main(void) {
+	struct statx sb;
+	statx(AT_FDCWD, ".", 0, STATX_BASIC_STATS, &sb);
+	return 0;
+}
diff --git a/build/has/strerror-l.c b/build/has/strerror-l.c
new file mode 100644
index 0000000..3dcc4d7
--- /dev/null
+++ b/build/has/strerror-l.c
@@ -0,0 +1,11 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <errno.h>
+#include <locale.h>
+#include <string.h>
+
+int main(void) {
+	locale_t locale = duplocale(LC_GLOBAL_LOCALE);
+	return !strerror_l(ENOMEM, locale);
+}
diff --git a/build/has/strerror-r-gnu.c b/build/has/strerror-r-gnu.c
new file mode 100644
index 0000000..26ca0ee
--- /dev/null
+++ b/build/has/strerror-r-gnu.c
@@ -0,0 +1,11 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <errno.h>
+#include <string.h>
+
+int main(void) {
+	char buf[256];
+	// Check that strerror_r() returns a pointer
+	return *strerror_r(ENOMEM, buf, sizeof(buf));
+}
diff --git a/build/has/strerror-r-posix.c b/build/has/strerror-r-posix.c
new file mode 100644
index 0000000..41b2d30
--- /dev/null
+++ b/build/has/strerror-r-posix.c
@@ -0,0 +1,11 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <errno.h>
+#include <string.h>
+
+int main(void) {
+	char buf[256];
+	// Check that strerror_r() returns an integer
+	return 2 * strerror_r(ENOMEM, buf, sizeof(buf));
+}
diff --git a/build/has/string-to-flags.c b/build/has/string-to-flags.c
new file mode 100644
index 0000000..027d72c
--- /dev/null
+++ b/build/has/string-to-flags.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stddef.h>
+#include <util.h>
+
+int main(void) {
+	return string_to_flags(NULL, NULL, NULL);
+}
diff --git a/build/has/strtofflags.c b/build/has/strtofflags.c
new file mode 100644
index 0000000..73ecbcb
--- /dev/null
+++ b/build/has/strtofflags.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <stddef.h>
+#include <unistd.h>
+
+int main(void) {
+	return strtofflags(NULL, NULL, NULL);
+}
diff --git a/build/has/timegm.c b/build/has/timegm.c
new file mode 100644
index 0000000..6e2d155
--- /dev/null
+++ b/build/has/timegm.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <time.h>
+
+int main(void) {
+	struct tm tm = {0};
+	return (int)timegm(&tm);
+}
diff --git a/build/has/tm-gmtoff.c b/build/has/tm-gmtoff.c
new file mode 100644
index 0000000..543df48
--- /dev/null
+++ b/build/has/tm-gmtoff.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <time.h>
+
+int main(void) {
+	struct tm tm = {0};
+	return tm.tm_gmtoff;
+}
diff --git a/build/has/uselocale.c b/build/has/uselocale.c
new file mode 100644
index 0000000..a712ff8
--- /dev/null
+++ b/build/has/uselocale.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <locale.h>
+
+int main(void) {
+	locale_t locale = uselocale((locale_t)0);
+	return locale == LC_GLOBAL_LOCALE;
+}