👤
Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:
Select Section of Man Page:
Select Man Page Repository:

RedHat 9 (Linux i386) - man page for confstr (redhat section 3)

CONFSTR(3)			    Linux Programmer's Manual			       CONFSTR(3)

NAME
       confstr - get configuration dependent string variables

SYNOPSIS
       #define _POSIX_C_SOURCE 2
       or
       #define _XOPEN_SOURCE
       #include <unistd.h>

       size_t confstr(int name, char *buf, size_t len);

DESCRIPTION
       confstr() gets the value of configuration - dependent string variables.

       The  name argument is the system variable to be queried.  The following variables are sup-
       ported:

       _CS_PATH
	      A value for the PATH variable which indicates where all the POSIX.2 standard utili-
	      ties can be found.

       If  buf	is not NULL, and len is not zero, confstr() copies the value of the string to buf
       truncated to len - 1 characters if necessary, with a null character as termination.   This
       can be detected by comparing the return value of confstr() against len.

       If len is zero and buf is NULL, confstr() just returns the value as defined below.

RETURN VALUE
       If name does not correspond to a valid configuration variable, confstr() returns 0.

EXAMPLES
       The  following  code  fragment determines the path where to find the POSIX.2 system utili-
       ties:

	  char *pathbuf; size_t n;

	  n = confstr(_CS_PATH,NULL,(size_t)0);
	  if ((pathbuf = malloc(n)) == NULL) abort();
	  confstr(_CS_PATH, pathbuf, n);

ERRORS
       If the value of name is invalid, errno is set to EINVAL.

CONFORMING TO
       proposed POSIX.2

BUGS
       POSIX.2 is not yet an approved standard; the information in this  manpage  is  subject  to
       change.

SEE ALSO
       sh(1), exec(3), system(3)

GNU					    1993-04-17				       CONFSTR(3)


All times are GMT -4. The time now is 05:55 PM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
×
UNIX.COM Login
Username:
Password:  
Show Password