| PROC_GET_FDINFO(3PROC) | Process Control Library Functions | PROC_GET_FDINFO(3PROC) |
proc_get_fdinfo,
proc_fdinfo_free — get
process file descriptor information
Process Control Library (libproc, -lproc)
#include
<libproc.h>
prfdinfo_t *
proc_get_fdinfo(pid_t pid,
int fd);
void
proc_fdinfo_free(prfdinfo_t
*info);
The
proc_get_fdinfo()
function is a convenient way to read the
/proc/pid/fdinfo/fd file for the process
pid and file descriptor fd. On
success, the return value of the function is a pointer to a properly
terminated
prfdinfo_t
structure.
The definition of the prfdinfo_t structure may be found in proc(5).
The caller must free the returned memory by
calling the
proc_fdinfo_free()
function.
The
proc_fdinfo_free()
frees all memory associated with the prfdinfo_t
structure passed as info.
Upon successful completion, the
proc_get_fdinfo() function returns a pointer to an
allocated prfdinfo_t structure. Otherwise,
NULL is returned to indicate an error occurred and
errno is set to indicate the error.
In addition to the errors listed below, the
proc_get_fdinfo() function may fail for the same
reasons as the fstat(2),
lseek(2),
malloc(3C),
open(2), and
read(2) functions. The
proc_get_fdinfo() function will fail if:
EIO| January 29, 2020 | OmniOS |