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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/selftests/proc/self.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tools/testing/selftests/proc/self.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tools/testing/selftests/proc/self.c b/tools/testing/selftests/proc/self.c new file mode 100644 index 000000000..21c15a1ff --- /dev/null +++ b/tools/testing/selftests/proc/self.c @@ -0,0 +1,39 @@ +/* + * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +// Test that /proc/self gives correct TGID. +#undef NDEBUG +#include <assert.h> +#include <stdio.h> +#include <unistd.h> + +#include "proc.h" + +int main(void) +{ + char buf1[64], buf2[64]; + pid_t pid; + ssize_t rv; + + pid = sys_getpid(); + snprintf(buf1, sizeof(buf1), "%u", pid); + + rv = readlink("/proc/self", buf2, sizeof(buf2)); + assert(rv == strlen(buf1)); + buf2[rv] = '\0'; + assert(streq(buf1, buf2)); + + return 0; +} |