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tools/nolibc: add support for fchdir()

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Add support for the file descriptor based variant of chdir().

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
This commit is contained in:
Thomas Weißschuh
2025-11-07 15:13:38 +01:00
committed by Thomas Weißschuh
parent 7534b9bfe6
commit 107eb8336e
2 changed files with 15 additions and 0 deletions
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13
tools/include/nolibc/sys.h
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@@ -118,6 +118,7 @@ void *sbrk(intptr_t inc)
/*
* int chdir(const char *path);
* int fchdir(int fildes);
*/
static __attribute__((unused))
@@ -132,6 +133,18 @@ int chdir(const char *path)
return __sysret(sys_chdir(path));
}
static __attribute__((unused))
int sys_fchdir(int fildes)
{
return my_syscall1(__NR_fchdir, fildes);
}
static __attribute__((unused))
int fchdir(int fildes)
{
return __sysret(sys_fchdir(fildes));
}
/*
* int chmod(const char *path, mode_t mode);

2
tools/testing/selftests/nolibc/nolibc-test.c
View File

@@ -1348,6 +1348,8 @@ int run_syscall(int min, int max)
CASE_TEST(dup3_0); tmp = dup3(0, 100, 0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break;
CASE_TEST(dup3_m1); tmp = dup3(-1, 100, 0); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break;
CASE_TEST(execve_root); EXPECT_SYSER(1, execve("/", (char*[]){ [0] = "/", [1] = NULL }, NULL), -1, EACCES); break;
CASE_TEST(fchdir_stdin); EXPECT_SYSER(1, fchdir(STDIN_FILENO), -1, ENOTDIR); break;
CASE_TEST(fchdir_badfd); EXPECT_SYSER(1, fchdir(-1), -1, EBADF); break;
CASE_TEST(file_stream); EXPECT_SYSZR(1, test_file_stream()); break;
CASE_TEST(fork); EXPECT_SYSZR(1, test_fork(FORK_STANDARD)); break;
CASE_TEST(getdents64_root); EXPECT_SYSNE(1, test_getdents64("/"), -1); break;