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Add some basic setgroups(), getgroups() and initgroups().

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Also teach /bin/id to print the user's supplemental groups.
This commit is contained in:
Andreas Kling 2018-11-07 01:38:51 +01:00
parent d3bd3791cb
commit a7f1d892a9
12 changed files with 167 additions and 19 deletions
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15
LibC/unistd.cpp
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@ -3,6 +3,9 @@
#include <errno.h>
#include <stdarg.h>
#include <assert.h>
#include <grp.h>
#include <pwd.h>
#include <stdio.h>
#include <Kernel/Syscall.h>
extern "C" {
@ -218,4 +221,16 @@ int dup2(int old_fd, int new_fd)
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int setgroups(size_t size, const gid_t* list)
{
int rc = Syscall::invoke(Syscall::SC_getgroups, (dword)size, (dword)list);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int getgroups(int size, gid_t list[])
{
int rc = Syscall::invoke(Syscall::SC_getgroups, (dword)size, (dword)list);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
}