getsysinfo_getsysinfo man page on DigitalUNIX

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setsysinfo (ULTRIX)					   setsysinfo (ULTRIX)

       getsysinfo, setsysinfo - Get and set the system information

       On DIGITAL UNIX systems, the setsysinfo() and getsysinfo() system calls
       have been expanded to provide unaligned access control similar to  that
       found  on  ULTRIX  systems.  In	addition, SSI_UACPROC and SSI_UACPARNT
       options accept three other options as arguments:

       -- UAC_NOPRINT

       Suppresses the printing of the unaligned error message to the user.

       -- UAC_NOFIX

       Instructs the operating system not to fix the unaligned access fault.

       -- UAC_SIGBUS

       Forces a SIGBUS signal to be delivered to the thread.

       These options are defined in sys/proc.h, and can 'be specified  in  any
       combination on a per task basis.

       UAC  settings  are inherited by children, so forked processes will have
       the same UAC characteristics as their  parent.  The  SSI_UACSYS	option
       only accepts the UAC_NOPRINT option and suppresses unaligned fixup mes‐
       sages regardless of the users' setting. Only the super-user is  allowed
       to use this option.

       The  following example shows the setsysinfo() call usage in an applica‐

		  #include <sys/sysinfo.h>
		  #include <sys/proc.h>
		  int buf[2], val, arg;
		  /* Do not print the warning to the user */
		  buf[0] = SSIN_UACPROC;
		  buf[1] = UAC_NOPRINT;
		  error = setsysinfo(SSI_NVPAIRS, buf, 1, 0, 0);

		  /* Do not print the warning and deliver a SIGBUS signal */
		  buf[0] = SSIN_UACPROC;
		  buf[1] = UAC_NOPRINT | UAC_SIGBUS;
		  error = setsysinfo(SSI_NVPAIRS, buf, 1, 0, 0);

       Digital UNIX Functions:

	   getsysinfo(2), setsysinfo(2) delim off

							   setsysinfo (ULTRIX)

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