getppid2
Get parent or calling process identification
Part of getpid(2).
Usage
#include <unistd.h>
pid_t
getpid(void);
pid_t
getppid(void);
Library
Standard C Library (libc, -lc)
Overview
The getpid() system call returns the process ID of the calling process. Though the ID is guaranteed to be unique, it should NOT be used for constructing temporary file names, for security reasons; see mkstemp(3) instead.
The getppid() system call returns the process ID of the parent of the calling process.
Errors
The getpid() and getppid() system calls are always successful, and no return value is reserved to indicate an error.
Releases
87 releases since FreeBSD 2.0.5-RELEASE; the text changed 46 times.