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cred: setting and getting ids

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Matheus
2024-08-16 20:02:12 -03:00
parent 8045dd3de6
commit da9c40b054
13 changed files with 256 additions and 63 deletions
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kernel-src/sys/syscalls/getresuid.c
+29
View File
@@ -0,0 +1,29 @@
#include <kernel/abi.h>
#include <kernel/syscalls.h>
#include <kernel/cred.h>
syscallret_t syscall_getresuid(context_t *, uid_t *uidp, uid_t *euidp, uid_t *suidp) {
syscallret_t ret = {
.ret = -1
};
int uid, euid, suid;
cred_getuids(&_cpu()->thread->proc->cred, &uid, &euid, &suid);
ret.errno = usercopy_touser(uidp, &uid, sizeof(uid));
if (ret.errno)
goto leave;
ret.errno = usercopy_touser(euidp, &euid, sizeof(euid));
if (ret.errno)
goto leave;
ret.errno = usercopy_touser(suidp, &suid, sizeof(suid));
if (ret.errno)
goto leave;
ret.ret = 0;
leave:
return ret;
}