16 lines
446 B
C
16 lines
446 B
C
#include <lib.h>
|
|
#define getppid _getppid
|
|
#include <unistd.h>
|
|
|
|
PUBLIC pid_t getppid()
|
|
{
|
|
message m;
|
|
|
|
/* POSIX says that this function is always successful and that no
|
|
* return value is reserved to indicate an error. Minix syscalls
|
|
* are not always successful and Minix returns the reserved value
|
|
* (pid_t) -1 when there is an error.
|
|
*/
|
|
if (_syscall(MM, MINIX_GETPID, &m) < 0) return ( (pid_t) -1);
|
|
return( (pid_t) m.m2_i1);
|
|
}
|