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UNIX for Dummies Questions & Answers
Calling on function from file??
Post 302228330 by era on Sunday 24th of August 2008 01:22:17 AM
08-24-2008
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LEARN ABOUT SUSE
endusershell
GETUSERSHELL(3) Linux Programmer's Manual GETUSERSHELL(3) NAME
getusershell, setusershell, endusershell - get permitted user shells SYNOPSIS
#include <unistd.h> char *getusershell(void); void setusershell(void); void endusershell(void); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): getusershell(), setusershell(), endusershell(): _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500) DESCRIPTION
The getusershell() function returns the next line from the file /etc/shells, opening the file if necessary. The line should contain the pathname of a valid user shell. If /etc/shells does not exist or is unreadable, getusershell() behaves as if /bin/sh and /bin/csh were listed in the file. The setusershell() function rewinds /etc/shells. The endusershell() function closes /etc/shells. RETURN VALUE
The getusershell() function returns a NULL pointer on end-of-file. FILES
/etc/shells CONFORMING TO
4.3BSD. SEE ALSO
shells(5) COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
2007-07-26 GETUSERSHELL(3)