GETUSERSHELL(3) | Library Functions Manual | GETUSERSHELL(3) |
getusershell
,
setusershell
, endusershell
— get valid user shells
Standard C Library (libc, -lc)
#include
<unistd.h>
char *
getusershell
(void);
void
setusershell
(void);
void
endusershell
(void);
The
getusershell
()
function returns a pointer to a valid user shell as defined by the system
manager in the shells database as described in
shells(5). If the shells database is
not available, getusershell
() behaves as if
/bin/sh and /bin/csh were
listed.
The
getusershell
()
function reads the next line (opening the file if necessary);
setusershell
()
rewinds the file;
endusershell
()
closes it.
The routine getusershell
() returns a null
pointer (0) on EOF
.
The getusershell
() function appeared in
4.3BSD.
The getusershell
() function leaves its
result in an internal static object and returns a pointer to that object.
Subsequent calls to getusershell
() will modify the
same object.
January 16, 1999 | macOS 14.6 |