2 * Copyright (c) 1989 - 1991, Julianne Frances Haugh
3 * Copyright (c) 1996 - 1999, Marek Michałkiewicz
4 * Copyright (c) 2003 - 2006, Tomasz Kłoczko
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38 #include <sys/types.h>
39 #include "prototypes.h"
41 #define BAD_SUBROOT2 "invalid root `%s' for user `%s'\n"
42 #define NO_SUBROOT2 "no subsystem root `%s' for user `%s'\n"
44 * subsystem - change to subsystem root
46 * A subsystem login is indicated by the presense of a "*" as
47 * the first character of the login shell. The given home
48 * directory will be used as the root of a new filesystem which
49 * the user is actually logged into.
51 void subsystem (const struct passwd *pw)
54 * The new root directory must begin with a "/" character.
57 if (pw->pw_dir[0] != '/') {
58 printf (_("Invalid root directory '%s'\n"), pw->pw_dir);
59 SYSLOG ((LOG_WARN, BAD_SUBROOT2, pw->pw_dir, pw->pw_name));
65 * The directory must be accessible and the current process
66 * must be able to change into it.
69 if (chdir (pw->pw_dir) || chroot (pw->pw_dir)) {
70 printf (_("Can't change root directory to '%s'\n"),
72 SYSLOG ((LOG_WARN, NO_SUBROOT2, pw->pw_dir, pw->pw_name));