diff options
Diffstat (limited to 'release/src/router/busybox/libbb/restricted_shell.c')
| -rw-r--r-- | release/src/router/busybox/libbb/restricted_shell.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/release/src/router/busybox/libbb/restricted_shell.c b/release/src/router/busybox/libbb/restricted_shell.c new file mode 100644 index 00000000..74a64140 --- /dev/null +++ b/release/src/router/busybox/libbb/restricted_shell.c @@ -0,0 +1,57 @@ +/* vi: set sw=4 ts=4: */ +/* + * Copyright 1989 - 1991, Julianne Frances Haugh <jockgrrl@austin.rr.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Julianne F. Haugh nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include <string.h> +#include <stdlib.h> +#include <syslog.h> +#include <ctype.h> +#include "libbb.h" + + + +/* Return 1 if SHELL is a restricted shell (one not returned by + getusershell), else 0, meaning it is a standard shell. */ + +int restricted_shell ( const char *shell ) +{ + char *line; + + setusershell ( ); + while (( line = getusershell ( ))) { + if (( *line != '#' ) && ( strcmp ( line, shell ) == 0 )) + break; + } + endusershell ( ); + return line ? 0 : 1; +} + |