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| Service Location Protocol Library Functions | SLPReg(3SLP) |
| | SLPReg - register an SLP advertisement |
SYNOPSIS
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#include <slp.h> SLPError SLPReg(SLPHandle hSLP, const char *pcSrvURL, const unsigned short usLifetime , const char *pcSrvType, const char *pcAttrs, SLPBoolean fresh, SLPRegReport callback, void *pvCookie); |
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The SLPReg() function registers the URL in pcSrvURL having the lifetime
usLifetime with the attribute list in pcAttrs. The pcAttrs list is a comma-separated
list of attribute assignments in on-the-wire format (including escaping
of reserved characters). The sLifetime parameter
must be nonzero and less than or equal to SLP_LIFETIME_MAXIMUM. If the fresh flag is SLP_TRUE, then the
registration is new, the SLP protocol fresh flag is set, and the registration replaces any existing registrations.
The pcSrvType parameter is a service type name
and can be included for service URLs that are not in
the service: scheme. If the URL is in the service:
scheme, the pcSrvType parameter is ignored. If
the fresh flag is SLP_FALSE, then an existing registration
is updated. Rules for new and updated registrations, and the format for pcAttrs and pcScopeList, can be found
in RFC 2608. Registrations and updates take place
in the language locale of the hSLP handle.
The API library is required to perform the operation
in all scopes obtained through configuration.
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hSLP
- The language specific SLPHandle on which
to register the advertisement. hSLP cannot be NULL.
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pcSrvURL
- The URL to register. The value of pcSrvURL cannot be NULL or the empty
string.
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usLifetime
- An unsigned short giving the life time of the service
advertisement, in seconds. The value must be an unsigned integer less than
or equal to SLP_LIFETIME_MAXIMUM.
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pcSrvType
- The service type. If pURL is a service: URL,
then this parameter is ignored. pcSrvType cannot
be NULL.
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pcAttrs
- A comma-separated list of attribute assignment expressions for the
attributes of the advertisement. pcAttrs cannot
be NULL. Use the empty string, "", to indicate no attributes.
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fresh
- An SLPBoolean that is SLP_TRUE if
the registration is new or SLP_FALSE if it is a reregistration.
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callback
- A callback to report the operation completion status. callback cannot be NULL.
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pvCookie
- Memory passed to the callback code from the client. pvCookie can be NULL.
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This function or its callback may return any SLP
error code. See the ERRORS section in slp_api(3SLP).
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| | Example 1. An Initial Registration
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The following example shows an initial registration for the "service:video://bldg15" camera service for three hours:
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SLPError err;
SLPHandle hSLP;
SLPRegReport regreport;
err = SLPReg(hSLP, "service:video://bldg15",
10800, "", "(location=B15-corridor),
(scan-rate=100)", SLP_TRUE,
regRpt, NULL);
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SLP_CONF_FILE
- When set, use this file for configuration.
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See attributes(5)
for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Availability | SUNWslpu |
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slpd(1M), slp_api(3SLP), slp.conf(4), slpd.reg(4), attributes(5)
System Administration Guide: Resource Management and Network Services
Guttman, E., Perkins, C., Veizades, J., and Day, M., RFC 2608, Service Location Protocol, Version 2, The Internet
Society, June 1999.
Kempf, J. and Guttman, E., RFC 2614, An API for Service
Location, The Internet Society, June 1999.
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