smi_render(3) SMI Management Information Library smi_render(3)NAME
smiRenderOID, smiRenderValue, smiRenderNode, smiRenderType - SMI data
and MIB data rendering routines
SYNOPSIS
#include <smi.h>
char *smiRenderOID(unsigned int oidlen, SmiSubid *oid, int flags);
char *smiRenderValue(SmiValue *smiValuePtr, SmiType *smiTypePtr, int flags);
char *smiRenderNode(SmiNode *smiNodePtr, int flags);
char *smiRenderType(SmiType *smiTypePtr, int flags);
DESCRIPTION
These functions provide can be used to render OIDs, values of MIB data,
or names of MIB nodes or types.
The smiRenderOID() function renders an OID given by its length oidlen
and its array of sub-identifiers oid*. The flags can be used to con‐
trol the resulting format, see FORMATS below.
The smiRenderValue() function renders a MIB data value given by smiVal‐
uePtr. An underlying type smiTypePtr may be supplied to support a more
human friendly rendering. The flags can be used to control the result‐
ing format, see FORMATS below.
The smiRenderNode() function renders the name of a node given by smiN‐
odePtr. The flags can be used to control the resulting format, see
FORMATS below.
The smiRenderType() function renders the name of a type given by smi‐
TypePtr. The flags can be used to control the resulting format, see
FORMATS below.
FORMATS
Each of these functions gets a last argument named flags. This is a
logcially or-ed set of flags that can be used to control the format of
the rendered items:
SMI_RENDER_NUMERIC
Allow numeric representation (default).
SMI_RENDER_NAME
Allow a representation by name(s) if possible.
SMI_RENDER_QUALIFIED
In case of a name representation, force a module prefix, e.g.
IF-MIB::ifIndex instead of just ifIndex.
SMI_RENDER_FORMAT
In case of smiRenderValue(), force the application of a format
specification (e.g. an SMIv2 DISPLAY-HINT) of an underlying type
if the smiTypePtr argument is not NULL and this type contains
such a format specification.
SMI_RENDER_PRINTABLE
In case of octet string value rendering, force a printable rep‐
resentation if all octets of the octet string are printable.
SMI_RENDER_UNKNOWN
Force the return of a string containing SMI_LABEL_UNKNOWN
("<unknown>"), if the rendering would fail. This way, the only
condition where NULL can be returned is the lack of memory.
SMI_RENDER_ALL
Apply a combination of all these flags. This supports the (hope‐
fully) most human friendly representations.
RETURN VALUE
All of these functions return a string, if successful, or NULL in case
of a rendering failure. See also the SMI_RENDER_UNKNOWN flag above.
SEE ALSOlibsmi(3), smi.h
AUTHOR
(C) 2002 Frank Strauss, TU Braunschweig, Germany <strauss@ibr.cs.tu-
bs.de>
IBR July 24, 2002 smi_render(3)
