getsvc man page on Tru64

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getsvc(3)							     getsvc(3)

NAME
       getsvc - Get a pointer to the svcinfo structure.

SYNOPSIS
       #include <sys/svcinfo.h>

       struct svcinfo *getsvc(
	       void );

LIBRARY
       Standard C Library (libc.so, libc.a)

DESCRIPTION
       The  getsvc()  function retrieves information from the system about the
       svcinfo structure by returning a pointer to the structure. This	struc‐
       ture  is	 initialized  the first time a getsvc() call is made. The con‐
       tents of the /etc/svc.conf file are parsed and stored  in  the  svcinfo
       structure.  If the /etc/svc.conf file is modified, the contents of this
       structure will be updated upon the next call to getsvc().

       The /etc/svc.conf file contains the names of the databases that can  be
       served  by  BIND or local files and the name service selection for each
       database. It also has settings for four security parameters. The	 data‐
       base  service  selection	 and  security	parameters  are	 stored in the
       svcinfo structure.

       The following structure exists in the <svcinfo.h> file:

       #define SVC_DATABASES 20 #define SVC_PATHSIZE 8 struct svcinfo {
	   int svcdate;	      /* Last mod date of /etc/svc.conf */

	   int svcpath[SVC_DATABASES][SVC_PATHSIZE];	/* indexed by
				 databases and choice 0=first choice
				 1=second choice, etc value stored is
				 source */

	      struct {
		  int passlenmin;
		  int passlenmax;
		  int softexp;
		  int seclevel;
	      } svcauth; };

       The svcdate field contains the date that	 the  /etc/svc.conf  file  was
       last  modified. The svcpath array contains the name service choices for
       each database.  The svcauth structure contains the values for the  four
       security	 parameters:  password	length	minimum (passlenmin), password
       length maximum (passlenmax), soft expiration date of a password	(soft‐
       exp), and security mode of a system (seclevel).

EXAMPLES
       The following programming example shows how to use the getsvc() call to
       use the information in the svcinfo structure to process	specific  host
       information.

       #include <sys/svcinfo.h> struct svcinfo *svcinfo;

       if ((svcinfo = getsvc()) != NULL)
	 for  (i=0;  (j	 =  svcinfo->svcpath[SVC_HOSTS][i])  != SVC_LAST; i++)
	     switch(j) {	   case	 SVC_BIND:		   /*  process
       BIND  hosts */		case SVC_YP:		   /* process YP hosts
       */	    case SVC_LOCAL:	       /* process LOCAL hosts */
       }

FILES
SEE ALSO
       Commands: svcsetup(8)

       Files: svc.conf(4)

								     getsvc(3)
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