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eSNMP API Routines
clone_oct
clone_oct
Makes a copy of the data in an
oct
structure. This routine does not allocate an
oct
structure; it allocates the buffer pointed to by the
oct
structure.
Format
oct clone_oct ( oct *new,
oct *old );
Arguments
new
A pointer to the
oct
structure receiving the data.
old
A pointer to the
oct
structure where the data is to be obtained.
Description
The
clone_oct
routine dynamically allocates the buffer, copies the data, and
updates the
oct
structure with the buffer’s address and length. The caller must
free this buffer.
The previous value of the buffer on the new
oct
structure is freed prior to the
new buffer being allocated. If you do not want the old value freed, initialize the
new
oct
structure before cloning.
Return Values
Null An error occurred. Otherwise, the pointer to the
oct
structure (the first argument) is returned.
Example
#include <esnmp.h>
OCT octet1;
OCT octet2;
:
: assume octet1 gets assigned a value
:
memset(&octet2, 0, sizeof(OCT));
if (clone_oct(&octet2, &octet1) == NULL)
DPRINTF((WARNING, "It did not work\n"));
5–54 eSNMP API Routines