HESIOD(3) Library Functions Manual HESIOD(3)NAME
hesiod_getmailhost, hesiod_free_postoffice - Hesiod functions for retrieving user to postoffice mappings
SYNOPSIS
#include <hesiod.h>
struct hesiod_postoffice *hesiod_getmailhost(void *context,
const char *user)
void hesiod_free_postoffice(void *context,
struct hesiod_postoffice *po)
cc file.c -lhesiod
DESCRIPTION
This family of functions allows you to retrieve user to postoffice mappings using Hesiod. To perform lookups, you need an initialized Hes-
iod context; see hesiod(3) for details. Information is returned in a hesiod_postoffice structure, which has the following fields:
hesiod_po_type
The type of postoffice box, typically ``POP''.
hesiod_po_host
The hostname where the postoffice box resides.
hesiod_po_name
The account name on the given postoffice server.
It is the caller's responsibility to call hesiod_free_postoffice with the returned postoffice entry to free the resources used by the
postoffice entry.
Hesiod queries for postoffice information are made using the ``pobox'' Hesiod type, using the username as the Hesiod name. The correspond-
ing entries should be space-separated lists of strings giving the type of postoffice box, the hostname, and the account name.
RETURN VALUES
On failure, hesiod_getservbyname returns NULL and sets the global variable errno to indicate the error.
ERRORS
hesiod_getmailhost may fail for any of the reasons the routine hesiod_resolve may fail.
SEE ALSO hesiod(3)
30 November 1996 HESIOD(3)
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HESIOD(3) Library Functions Manual HESIOD(3)NAME
hesiod_getservbyname, hesiod_free_servent - Hesiod functions for retrieving service information
SYNOPSIS
#include <hesiod.h>
struct servent *hesiod_getservbyname(void *context,
const char *name, const char *proto)
void hesiod_free_servent(void *context, struct servent *serv)
cc file.c -lhesiod
DESCRIPTION
This family of functions allows you to retrieve service to port mappings using Hesiod. To perform lookups, you need an initialized Hesiod
context; see hesiod(3) for details. Information is returned in the same format as by getservbyname. It is the caller's responsibility to
call hesiod_free_servent with the returned service entry to free the resources used by the service entry.
Hesiod queries for service information are made using the ``service'' Hesiod type, using the service name as the Hesiod name. The corre-
sponding records should be space-separated lists of strings giving the service name, protocol, port number (in decimal), and zero or more
aliases for the service. There may be multiple records per service name; hesiod_getservbyname will pick the first one whose protocol
matches proto.
RETURN VALUES
On failure, hesiod_getservbyname returns NULL and sets the global variable errno to indicate the error.
ERRORS
hesiod_getservbyname may fail for any of the reasons the routine hesiod_resolve may fail.
SEE ALSO hesiod(3)
30 November 1996 HESIOD(3)
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