com_err - phpMan

COM_ERR(3)                                                          COM_ERR(3)



NAME
       com_err - common error display routine

SYNOPSIS
        #include <et/com_err.h>
       void (*proc) (const char *, long, const char *, va_list);

       void com_err (const char *whoami, long code, const char *format, ...);

       proc = set_com_err_hook (proc);

       proc = reset_com_err_hook ();

       void initialize_XXXX_error_table ();

DESCRIPTION
       Com_err  displays  an  error  message  on  the  standard  error  stream stderr (see
       stdio(3S)) composed of the whoami string, which should specify the program name  or
       some  subportion of a program, followed by an error message generated from the code
       value (derived from compile_et(1)), and a string produced using the  format  string
       and any following arguments, in the same style as fprintf(3).

       The behavior of com_err can be modified using set_com_err_hook; this defines a pro-
       cedure which is called with the arguments passed to com_err, instead of the default
       internal  procedure which sends the formatted text to error output.  Thus the error
       messages from a program can all easily be diverted to another  form  of  diagnostic
       logging, such as syslog(3).  Reset_com_err_hook may be used to restore the behavior
       of com_err to its default form.   Both  procedures  return  the  previous  ‘‘hook’’
       value.  These ‘‘hook’’ procedures must have the declaration given for proc above in
       the synopsis.

       The initialize_XXXX_error_table routine is generated mechanically by  compile_et(1)
       from  a source file containing names and associated strings.  Each table has a name
       of up to four characters, which is used in place of the XXXX in  the  name  of  the
       routine.   These  routines  should  be called before any of the corresponding error
       codes are used, so that the com_err library will recognize error codes  from  these
       tables when they are used.

       The  com_err.h header file should be included in any source file that uses routines
       from the com_err library; executable files must be linked  using  ‘‘-lcom_err’’  in
       order to cause the com_err library to be included.



SEE ALSO
       compile_et (1), syslog (3).

       Ken Raeburn, "A Common Error Description Library for UNIX".



SIPB                              22 Nov 1988                       COM_ERR(3)

Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache/1.3.41 (Unix) PHP/5.2.5 mod_perl/1.30 mod_gzip/1.3.26.1a
Under GNU General Public License
2009-01-08 04:15 @38.103.63.58 CrawledBy CCBot/1.0 (+http://www.commoncrawl.org/bot.html)