RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 14:48:14 +00:00
Code Issues Activity Actions

LibCore: Add Core::System wrappers for fstat() and fcntl()

Browse source
This commit is contained in:
Andreas Kling 2021-11-23 11:10:19 +01:00
parent 21a5fb0fa2
commit c37a02341b
2 changed files with 25 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

22
Userland/Libraries/LibCore/System.cpp
View file

@ -6,6 +6,8 @@
#include <LibCore/System.h>
#include <LibSystem/syscall.h>
#include <fcntl.h>
#include <stdarg.h>
#define HANDLE_SYSCALL_RETURN_VALUE(syscall_name, rc, success_value) \
if ((rc) < 0) { \
@ -44,4 +46,24 @@ ErrorOr<void> sigaction(int signal, struct sigaction const* action, struct sigac
return {};
}
ErrorOr<struct stat> fstat(int fd)
{
struct stat st = {};
if (::fstat(fd, &st) < 0)
return Error::from_syscall("fstat"sv, -errno);
return st;
}
ErrorOr<int> fcntl(int fd, int command, ...)
{
va_list ap;
va_start(ap, command);
u32 extra_arg = va_arg(ap, u32);
int rc = ::fcntl(fd, command, extra_arg);
va_end(ap);
if (rc < 0)
return Error::from_syscall("fcntl"sv, -errno);
return rc;
}
}