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GETUSERSHELL(3) | Linux Programmer's Manual | GETUSERSHELL(3) |
NAME¶
getusershell, setusershell, endusershell - get permitted user shellsSYNOPSIS¶
#include <unistd.h>char *getusershell(void);void setusershell(void);void endusershell(void);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
_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 3.44 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/.2007-07-26 | GNU |