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Fix handling of empty shell field in passwd file (use /bin/sh); problem

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was caused by introduction of login classes. Closes PR bin/2550.
Added references to login.conf to manpage, crossreference to login.conf(5).
This commit is contained in:
David Nugent 1997-01-22 02:45:16 +00:00
parent e82d554503
commit 5217f56ec6
2 changed files with 15 additions and 1 deletions
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11
usr.bin/login/login.1
View File

@ -95,6 +95,8 @@ exists,
.Nm login
checks to see if the user and host pair are specifically allowed or denied
access.
Login access may also be controlled via the login class, which provides
allow and deny records based on time, tty and remote host name.
.Pp
If the file
.Pa /etc/fbtab
@ -124,6 +126,12 @@ Login enters information into the environment (see
specifying the user's home directory (HOME), command interpreter (SHELL),
search path (PATH), terminal type (TERM) and user name (both LOGNAME and
USER).
Other environment variables may be set due to entries in the login
class capabilities database, for the login class assigned in the
user's system passwd record.
The login class also controls the maximum and current process resource
limits granted to a login, process priorities and many other aspects of
a user's login environment.
.Pp
The standard shells,
.Xr csh 1
@ -136,6 +144,8 @@ utility.
.Bl -tag -width /var/mail/userXXX -compact
.It Pa /etc/fbtab
changes device protections
.It Pa /etc/login.conf
login class capabilities database
.It Pa /etc/motd
message-of-the-day
.It Pa /etc/nologin
@ -158,6 +168,7 @@ makes login quieter
.Xr getpass 3 ,
.Xr fbtab 5 ,
.Xr login.access 5 ,
.Xr login.conf 5 ,
.Xr utmp 5 ,
.Xr environ 7 ,
.Xr nologin 8

5
usr.bin/login/login.c
View File

@ -658,8 +658,11 @@ main(argc, argv)
(void)setuid(rootlogin ? 0 : pwd->pw_uid);
#endif
if (*pwd->pw_shell == '\0')
if (*pwd->pw_shell == '\0') {
pwd->pw_shell = _PATH_BSHELL;
if (*shell == '\0') /* Not overridden */
strcpy(shell, pwd->pw_shell);
}
(void)setenv("SHELL", pwd->pw_shell, 1);
(void)setenv("HOME", pwd->pw_dir, 1);
if (term[0] != '\0')