Manual Reference Pages - PH_DELETE (3)
ph_change, ph_add, ph_delete - modify data on PH server
int ph_change(PH *ph, struct ph_fieldselector query,
struct ph_fieldselector change, int flags);
int ph_add(PH *ph, struct ph_fieldselector fields);
int ph_delete(PH *ph, struct ph_fieldselector query);
This man page documents version 1.2 of libphclient.
The ph_change() function changes data on the PH server associated
with the PH handle ph. The query argument selects which
entries will be changed in the same manner as for the ph_query()
function. The change argument is an array of changes to make
on the server. Each element of the array is a structure with three
fields: field (the name of the field to modify encoded as a
string), operation (a character value which must be set to =),
and value (a string value to set the field to). The last element
in the array must be set to all zeros. If the flags argument is
set to PH_CHANGE_FORCE, the "force" clause is used instead of the
"make" clause when sending the change command to the server.
The ph_add() function adds a new PH entry whose contents are specified
in fields. This data is encoded just as the change argument
to ph_change() above.
The ph_delete() function deletes entries from the PH server. The
query argument selects which entries will be deleted in the same
manner as for the ph_query() function.
On success, the ph_change() and ph_delete() functions return
the number of entries changed or deleted, or PH_ERR_DATAERR if the
supplied field data is invalid.
All of the functions described here return PH_ERR_NOTLOG if no user
is logged in, and PH_ERR_READONLY if the server is in read-only
mode. On error, they return -1 and set errno.
The functions describe here will fail with EINVAL if they receive
an unexpected response code from the server. In addition, they may fail
with any error from the functions read() or write().
|University of Illinois ||PH_CHANGE (3) ||Oct 2002 |
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