|KINFO_GETFILE(3)||FreeBSD Library Functions Manual||KINFO_GETFILE(3)|
NAMEkinfo_getfile — function for getting per-process file descriptor information
LIBRARYSystem Utilities Library (libutil, -lutil)
SYNOPSIS#include < sys/types.h>
#include < libutil.h>
struct kinfo_file *
kinfo_getfile( pid_t pid, int *cntp);
DESCRIPTIONThis function is used for obtaining the file descriptor information of a particular process.
The pid field contains the process identifier. This should be the a process that you have privilege to access. The cntp field allows the caller to know how many records are returned.
This function is a wrapper around sysctl(3) with the KERN_PROC_FILEDESC mib. While the kernel returns a packed structure, this function expands the data into a fixed record format.
RETURN VALUESOn success the kinfo_getfile() function returns a pointer to an array of struct kinfo_file structures as defined by < sys/user.h>. The array was obtained by an internal call to malloc(3) and must be freed by the caller with a call to free(3). On failure the kinfo_getfile() function returns NULL.
|December 6, 2008||FreeBSD|