Message ID | 20240118152438.15668-1-andrea.cervesato@suse.de |
---|---|
State | Superseded |
Headers | show |
Series | [v1] Add lstat03 test | expand |
Hi! > +// SPDX-License-Identifier: GPL-2.0-or-later > +/* > + * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. > + * Author: David Fenner > + * Copilot: Jon Hendrickson > + * Copyright (C) 2024 Andrea Cervesato andrea.cervesato@suse.com > + */ > + > +/*\ > + * [Description] > + * > + * This test verifies that lstat() is working correctly on symlink() > + * generated files. > + */ > + > +#include "tst_test.h" > + > +static void test_lstat(void) > +{ > + char *symname = "my_symlink0"; > + > + TST_EXP_PASS(symlink(tst_get_tmpdir(), symname)); > + > + struct stat path_stat; > + struct stat link_stat; > + > + SAFE_LSTAT(tst_get_tmpdir(), &path_stat); > + SAFE_LSTAT(symname, &link_stat); Apart from the leakage of memory does this even work correctly? If we request information about the link itself via lstat() we get the stat results for the link. If we call lstat() on the target of the symlink we get the info about the target. How are these two supposed to yield the same result? I suppose that if we do stat() on the link and stat() on the link tharget then we would end up with an identical results, but not for lstat(). > + TST_EXP_EQ_LI(path_stat.st_dev, link_stat.st_dev); > + TST_EXP_EQ_LI(path_stat.st_nlink, link_stat.st_nlink); > + TST_EXP_EQ_LI(path_stat.st_uid, link_stat.st_uid); > + TST_EXP_EQ_LI(path_stat.st_gid, link_stat.st_gid); > + TST_EXP_EQ_LI(path_stat.st_atime, link_stat.st_atime); > + TST_EXP_EQ_LI(path_stat.st_mtime, link_stat.st_mtime); > + TST_EXP_EQ_LI(path_stat.st_ctime, link_stat.st_ctime); > + > + TST_EXP_EXPR(path_stat.st_mode != link_stat.st_mode, > + "object and symbolic link have different st_mode"); > + TST_EXP_EXPR(path_stat.st_size != link_stat.st_size, > + "object and symbolic link have different st_size"); > + > + SAFE_UNLINK(symname); > +} > + > +static void test_lstat_no_path(void) > +{ > + char *symname = "my_symlink1"; > + struct stat link_stat; > + > + TST_EXP_PASS(symlink("bc+eFhi!k", symname)); > + > + SAFE_LSTAT(symname, &link_stat); So this is a lstat() test, right? So it should rather be SAFE_SYMLIK() then TST_EXP_PASS(lstat(...)) > + TST_EXP_EXPR((link_stat.st_mode & S_IFMT) == S_IFLNK, > + "can read symlink file information"); > + > + SAFE_UNLINK(symname); > +} > + > +static void run(void) > +{ > + test_lstat(); > + test_lstat_no_path(); > +} > + > +static struct tst_test test = { > + .test_all = run, > + .needs_tmpdir = 1, > +}; > -- > 2.35.3 > > > -- > Mailing list info: https://lists.linux.it/listinfo/ltp
diff --git a/runtest/syscalls b/runtest/syscalls index 6e2407879..69ac20b49 100644 --- a/runtest/syscalls +++ b/runtest/syscalls @@ -723,12 +723,12 @@ lseek02 lseek02 lseek07 lseek07 lseek11 lseek11 -lstat01A symlink01 -T lstat01 -lstat01A_64 symlink01 -T lstat01_64 lstat01 lstat01 lstat01_64 lstat01_64 lstat02 lstat02 lstat02_64 lstat02_64 +lstat03 lstat03 +lstat03_64 lstat03_64 mallinfo02 mallinfo02 diff --git a/testcases/kernel/syscalls/lstat/.gitignore b/testcases/kernel/syscalls/lstat/.gitignore index a497a445f..72cba871f 100644 --- a/testcases/kernel/syscalls/lstat/.gitignore +++ b/testcases/kernel/syscalls/lstat/.gitignore @@ -2,3 +2,5 @@ /lstat01_64 /lstat02 /lstat02_64 +/lstat03 +/lstat03_64 diff --git a/testcases/kernel/syscalls/lstat/lstat03.c b/testcases/kernel/syscalls/lstat/lstat03.c new file mode 100644 index 000000000..86efed348 --- /dev/null +++ b/testcases/kernel/syscalls/lstat/lstat03.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. + * Author: David Fenner + * Copilot: Jon Hendrickson + * Copyright (C) 2024 Andrea Cervesato andrea.cervesato@suse.com + */ + +/*\ + * [Description] + * + * This test verifies that lstat() is working correctly on symlink() + * generated files. + */ + +#include "tst_test.h" + +static void test_lstat(void) +{ + char *symname = "my_symlink0"; + + TST_EXP_PASS(symlink(tst_get_tmpdir(), symname)); + + struct stat path_stat; + struct stat link_stat; + + SAFE_LSTAT(tst_get_tmpdir(), &path_stat); + SAFE_LSTAT(symname, &link_stat); + + TST_EXP_EQ_LI(path_stat.st_dev, link_stat.st_dev); + TST_EXP_EQ_LI(path_stat.st_nlink, link_stat.st_nlink); + TST_EXP_EQ_LI(path_stat.st_uid, link_stat.st_uid); + TST_EXP_EQ_LI(path_stat.st_gid, link_stat.st_gid); + TST_EXP_EQ_LI(path_stat.st_atime, link_stat.st_atime); + TST_EXP_EQ_LI(path_stat.st_mtime, link_stat.st_mtime); + TST_EXP_EQ_LI(path_stat.st_ctime, link_stat.st_ctime); + + TST_EXP_EXPR(path_stat.st_mode != link_stat.st_mode, + "object and symbolic link have different st_mode"); + TST_EXP_EXPR(path_stat.st_size != link_stat.st_size, + "object and symbolic link have different st_size"); + + SAFE_UNLINK(symname); +} + +static void test_lstat_no_path(void) +{ + char *symname = "my_symlink1"; + struct stat link_stat; + + TST_EXP_PASS(symlink("bc+eFhi!k", symname)); + + SAFE_LSTAT(symname, &link_stat); + TST_EXP_EXPR((link_stat.st_mode & S_IFMT) == S_IFLNK, + "can read symlink file information"); + + SAFE_UNLINK(symname); +} + +static void run(void) +{ + test_lstat(); + test_lstat_no_path(); +} + +static struct tst_test test = { + .test_all = run, + .needs_tmpdir = 1, +};