http://sourceware.org/ml/gdb-patches/2005-05/threads.html#00637 Proposed upstream but never committed upstream. 2005-06-09 Jeff Johnston * gdb.base/gdbinit.exp: New testcase. * gdb.base/gdbinit.sample: Sample .gdbinit for gdbinit.exp. 2005-06-08 Daniel Jacobowitz Jeff Johnston * Makefile.in (cli-cmds.o): Update. * configure.in: Add check for getuid. * configure: Regenerated. * config.in: Ditto. * main.c (captured_main): Pass -1 to source_command when loading gdbinit files. * cli/cli-cmds.c: Include "gdb_stat.h" and . (source_command): Update documentation. Check permissions if FROM_TTY is -1. Index: gdb-7.0.50.20100121/gdb/cli/cli-cmds.c =================================================================== --- gdb-7.0.50.20100121.orig/gdb/cli/cli-cmds.c 2010-01-18 07:25:22.000000000 +0100 +++ gdb-7.0.50.20100121/gdb/cli/cli-cmds.c 2010-01-21 15:12:28.000000000 +0100 @@ -38,6 +38,7 @@ #include "objfiles.h" #include "source.h" #include "disasm.h" +#include "gdb_stat.h" extern void disconnect_or_stop_tracing (int from_tty); #include "ui-out.h" @@ -488,6 +489,29 @@ find_and_open_script (int from_tty, char file, O_RDONLY, &full_pathname); make_cleanup (xfree, full_pathname); +#ifdef HAVE_GETUID + if (from_tty == -1) + { + struct stat statbuf; + + if (fstat (fd, &statbuf) < 0) + { + close (fd); + /* Do not do_cleanups (old_cleanups) as FILE is allocated there. + perror_with_name calls error which should call the cleanups. */ + perror_with_name (file); + } + if (statbuf.st_uid != getuid () || (statbuf.st_mode & S_IWOTH)) + { + /* FILE gets freed by do_cleanups (old_cleanups). */ + warning (_("not using untrusted file \"%s\""), file); + close (fd); + do_cleanups (old_cleanups); + return 0; + } + } +#endif + /* Use the full path name, if it is found. */ if (full_pathname != NULL && fd != -1) { @@ -496,7 +520,7 @@ find_and_open_script (int from_tty, char if (fd == -1) { - if (from_tty) + if (from_tty > 0) perror_with_name (file); else { @@ -554,6 +578,7 @@ source_script (char *file, int from_tty) else script_from_file (stream, file); + /* FILE gets freed by do_cleanups (old_cleanups). */ do_cleanups (old_cleanups); } Index: gdb-7.0.50.20100121/gdb/testsuite/gdb.base/gdbinit.exp =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ gdb-7.0.50.20100121/gdb/testsuite/gdb.base/gdbinit.exp 2010-01-21 15:11:18.000000000 +0100 @@ -0,0 +1,98 @@ +# Copyright 2005 +# Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +# Please email any bugs, comments, and/or additions to this file to: +# bug-gdb@prep.ai.mit.edu + +# This file was written by Jeff Johnston . + +if $tracelevel then { + strace $tracelevel +} + +set prms_id 0 +set bug_id 0 + +# are we on a target board +if [is_remote target] { + return +} + + +global verbose +global GDB +global GDBFLAGS +global gdb_prompt +global timeout +global gdb_spawn_id; + +gdb_stop_suppressing_tests; + +verbose "Spawning $GDB -nw" + +if [info exists gdb_spawn_id] { + return 0; +} + +if ![is_remote host] { + if { [which $GDB] == 0 } then { + perror "$GDB does not exist." + exit 1 + } +} + +set env(HOME) [pwd] +remote_exec build "rm .gdbinit" +remote_exec build "cp ${srcdir}/${subdir}/gdbinit.sample .gdbinit" +remote_exec build "chmod 646 .gdbinit" + +set res [remote_spawn host "$GDB -nw [host_info gdb_opts]"]; +if { $res < 0 || $res == "" } { + perror "Spawning $GDB failed." + return 1; +} +gdb_expect 360 { + -re "warning: not using untrusted file.*\.gdbinit.*\[\r\n\]$gdb_prompt $" { + pass "untrusted .gdbinit caught." + } + -re "$gdb_prompt $" { + fail "untrusted .gdbinit caught." + } + timeout { + fail "(timeout) untrusted .gdbinit caught." + } +} + +remote_exec build "chmod 644 .gdbinit" +set res [remote_spawn host "$GDB -nw [host_info gdb_opts]"]; +if { $res < 0 || $res == "" } { + perror "Spawning $GDB failed." + return 1; +} +gdb_expect 360 { + -re "warning: not using untrusted file.*\.gdbinit.*\[\r\n\]$gdb_prompt $" { + fail "trusted .gdbinit allowed." + } + -re "in gdbinit.*$gdb_prompt $" { + pass "trusted .gdbinit allowed." + } + timeout { + fail "(timeout) trusted .gdbinit allowed." + } +} + +remote_exec build "rm .gdbinit" Index: gdb-7.0.50.20100121/gdb/testsuite/gdb.base/gdbinit.sample =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ gdb-7.0.50.20100121/gdb/testsuite/gdb.base/gdbinit.sample 2010-01-21 15:11:18.000000000 +0100 @@ -0,0 +1 @@ +echo "\nin gdbinit" Index: gdb-7.0.50.20100121/gdb/main.c =================================================================== --- gdb-7.0.50.20100121.orig/gdb/main.c 2010-01-21 15:11:09.000000000 +0100 +++ gdb-7.0.50.20100121/gdb/main.c 2010-01-21 15:11:18.000000000 +0100 @@ -818,7 +818,7 @@ Excess command line arguments ignored. ( debugging or what directory you are in. */ if (home_gdbinit && !inhibit_gdbinit) - catch_command_errors (source_script, home_gdbinit, 0, RETURN_MASK_ALL); + catch_command_errors (source_script, home_gdbinit, -1, RETURN_MASK_ALL); /* Now perform all the actions indicated by the arguments. */ if (cdarg != NULL) @@ -887,7 +887,7 @@ Can't attach to process and specify a co /* Read the .gdbinit file in the current directory, *if* it isn't the same as the $HOME/.gdbinit file (it should exist, also). */ if (local_gdbinit && !inhibit_gdbinit) - catch_command_errors (source_script, local_gdbinit, 0, RETURN_MASK_ALL); + catch_command_errors (source_script, local_gdbinit, -1, RETURN_MASK_ALL); for (i = 0; i < ncmd; i++) {