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Kernel: Pass a parameter struct to mount()

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This was the last remaining syscall that took a null-terminated string
and figured out how long it was by walking it in kernelspace *shudder*.
This commit is contained in:
Andreas Kling 2020-01-11 10:46:21 +01:00
parent e380142853
commit f5092b1c7e
5 changed files with 43 additions and 24 deletions
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9
Libraries/LibC/unistd.cpp
View file

@ -610,9 +610,14 @@ int reboot()
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int mount(const char* device, const char* mountpoint, const char* fstype)
int mount(const char* source, const char* target, const char* fs_type)
{
int rc = syscall(SC_mount, device, mountpoint, fstype);
if (!source || !target || !fs_type) {
errno = EFAULT;
return -1;
}
Syscall::SC_mount_params params { { source, strlen(source) }, { target, strlen(target) }, { fs_type, strlen(fs_type) } };
int rc = syscall(SC_mount, &params);
__RETURN_WITH_ERRNO(rc, rc, -1);
}

2
Libraries/LibC/unistd.h
View file

@ -111,7 +111,7 @@ int fchown(int fd, uid_t, gid_t);
int ftruncate(int fd, off_t length);
int halt();
int reboot();
int mount(const char* device, const char* mountpoint, const char* fstype);
int mount(const char* source, const char* target, const char* fs_type);
int umount(const char* mountpoint);
enum {