RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 05:38:11 +00:00
Code Issues Activity Actions

ProcFS: Reads past the end of a generated file should be zero-length

Browse source
This commit is contained in:
Andreas Kling 2020-01-08 12:49:36 +01:00
parent 28ee5b0e98
commit fe1bf067b8
2 changed files with 27 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

17
Userland/test_io.cpp
View file

@ -140,6 +140,22 @@ void test_tmpfs_read_past_end()
close(fd);
}
void test_procfs_read_past_end()
{
int fd = open("/proc/uptime", O_RDONLY);
ASSERT(fd >= 0);
int rc = lseek(fd, 4096, SEEK_SET);
ASSERT(rc == 4096);
char buffer[16];
int nread = read(fd, buffer, sizeof(buffer));
if (nread != 0) {
fprintf(stderr, "Expected 0-length read past end of file in /proc\n");
}
close(fd);
}
int main(int, char**)
{
int rc;
@ -160,6 +176,7 @@ int main(int, char**)
test_ftruncate_negative();
test_mmap_directory();
test_tmpfs_read_past_end();
test_procfs_read_past_end();
return 0;
}