minix/lib/nbsd_libc/sys-minix/syscall.c

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#include <sys/cdefs.h>
#include <lib.h>
#include "namespace.h"
#ifdef __weak_alias
__weak_alias(syscall, _syscall)
#endif
int _syscall(endpoint_t who, int syscallnr, message *msgptr)
{
int status;
msgptr->m_type = syscallnr;
status = _sendrec(who, msgptr);
if (status != 0) {
/* 'sendrec' itself failed. */
/* XXX - strerror doesn't know all the codes */
msgptr->m_type = status;
}
if (msgptr->m_type < 0) {
errno = -msgptr->m_type;
return(-1);
}
return(msgptr->m_type);
}