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setpgid: check if pid is the current proc or a child

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Matheus
2024-08-25 12:51:10 -03:00
parent 58f3129da2
commit 87adc4d10a
1 changed files with 15 additions and 2 deletions
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kernel-src/sys/syscalls/setpid.c
+15 -2
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@@ -13,9 +13,16 @@ syscallret_t syscall_setsid(context_t *) {
syscallret_t syscall_setpgid(context_t *, pid_t pid, pid_t pgid) {
syscallret_t ret;
proc_t *currentproc = _cpu()->thread->proc;
if (pgid < 0) {
ret.errno = EINVAL;
return ret;
}
proc_t *proc = NULL;
if (pid == 0) {
proc = _cpu()->thread->proc;
proc = currentproc;
PROC_HOLD(proc);
} else {
proc = sched_getprocfrompid(pid);
@@ -26,9 +33,15 @@ syscallret_t syscall_setpgid(context_t *, pid_t pid, pid_t pgid) {
return ret;
}
if (proc != currentproc && proc->parent != currentproc) {
ret.errno = ESRCH;
PROC_RELEASE(proc);
return ret;
}
proc_t *pgrp = NULL;
if (pgid == 0) {
pgrp = _cpu()->thread->proc;
pgrp = currentproc;
PROC_HOLD(pgrp);
} else {
pgrp = sched_getprocfrompid(pgid);