cfg_disconnect(3) Library Functions Manual cfg_disconnect(3)NAME
cfg_disconnect - Remove the connection to a remote configuration management server
LIBRARY
Configuration Management Library (libcfg.a)
SYNOPSIS
#include <cfg.h> cfg_status_t cfg_disconnect(
cfg_handle_t *handle);
PARAMETERS
Structure identifying the means of communication between your application and the configuration management server. Your application
receives this structure when it calls the cfg_connect() routine.
DESCRIPTION
Once your application is finished using a remote configuration management server, it should call the cfg_disconnect() routine. This routine
closes sockets and stops execution of the configuration management server.
EXAMPLES
The following example illustrates the use of the cfg_disconnect() library routine: cfg_status_t retval; cfg_handle_t
handle;
retval = cfg_disconnect(&handle);
if (retval != CFG_SUCCESS)
print_error(retval);
In this example, the cfg_disconnect() routine ends communication between the application and the configuration manager server. The server
stops executing.
RETURN VALUES
Upon successful completion, cfg_disconnect() returns CFG_SUCCESS. Other return values indicate that an error has occurred. For informa-
tion about handling return values from routines in the configuration management library, see libcfg(3).
RELATED INFORMATION
Commands: cfgmgr(8), sysconfig(8)
Routines: cfg_connect(3), libcfg(3) delim off
cfg_disconnect(3)
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cfg_subsys_list(3) Library Functions Manual cfg_subsys_list(3)NAME
cfg_subsys_list - Determine the names and states of all subsystems registered on the system
LIBRARY
Configuration Management Library (libcfg.a)
SYNOPSIS
#include <cfg.h> cfg_status_t cfg_subsys_list(
cfg_handle_t *handle,
caddr_t **subsys,
unsigned int **state,
int *nsubsys);
PARAMETERS
Structure identifying the means of communication between your application and the configuration management server. For local requests,
pass NULL in this parameter. For remote requests, pass the value returned from the cfg_connect() routine. Returns the names of subsystems
currently registered on the system. The system allocates memory for this array, which you should free when the information in the array is
no longer needed. Returns an array of bit flags, defined in <sys/sysconfig.h>, representing the state of the subsystems. The system allo-
cates memory for this array, which you should free when the information in the array is no longer needed. The following flags are cur-
rently defined: loaded and configured. Returns an integer designating how many subsystem names and states are being returned.
DESCRIPTION
Use the cfg_subsys_list() routine to determine the names of subsystems available on the system and the current state of those subsystems.
The subsys array returns NULL terminated subsystem names of length CFG_SUBSYS_NAME_SZ. (CFG_SUBSYS_NAME_SZ is defined in the <sys/syscon-
fig.h> header file.)
The value returned in the state parameter is an array containing integer representations of binary values. The least significant bit in
each binary value designates whether or not the subsystem is loaded. If this bit is set, the subsystem is loaded. If the next higher
order bit is set, the subsystem is configured.
You can determine the state of a subsystem by using one of the values returned in the state parameter in a bitwise AND operation. The
<sys/sysconfig.h> header file defines constants for this purpose. See the EXAMPLES section for more information about using these con-
stants.
The array of subsystems states and the array of subsystem names are parallel arrays. In other words, the first element of the state array
contains the state of the subsystem named in the first element of the subsys array. The second element of the state array gives the state
of the second element in the subsys array, and so on.
EXAMPLES
The following example illustrates the use of the cfg_subsys_list() library routine:
cfg_status_t retval; cfg_handle_t handle; caddr_t *subsys; unsigned int *state; int
nsubsys; int i;
retval = cfg_subsys_list(&handle, &subsys, &state, &nsubsys);
if (retval != CFG_SUCCESS)
print_error(retval); else {
/* Walk through the array of subsystem names and the array */
/* of subsystem states. Display each name and state. */
for (i=0; i<nsubsys; i++){
if (state[i] & CFG_STATE_LOADED) {
if (state[i] & CFG_STATE_CONFIGURED)
printf("Subsystem '%s' is loaded and configured.
",
subsys[i]);
else
printf("Subsystem '%s' is loaded.
", subsys[i]);
else
printf("Subsystem '%s' is unloaded.
", subsys[i]);
}
}
free(subsys);
free(state); }
In this example, the cfg_subsys_list() routine returns an array of subsystem names and an array of subsystem states. The application
determines whether the call to the routine was successful. If the call was successful, the application displays the name and state of each
subsystem available on the system.
The system allocates memory in which to return the state and subsys arrays. Once the application is finished using the values in those
arrays, it calls the free() routine to make that memory available for use by other applications.
RETURN VALUES
Upon successful completion, cfg_subsys_list() returns CFG_SUCCESS. Other return values indicate that an error has occurred. For informa-
tion about handling return values from routines in the configuration management library, see libcfg(3).
RELATED INFORMATION
Commands: cfgmgr(8), sysconfig(8)
Routines: cfg_subsys_state(3), libcfg(3) delim off
cfg_subsys_list(3)