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* defs.h (parse_pid_to_attach): New.
	* utils.c (parse_pid_to_attach): New.
	* darwin-nat.c (darwin_attach): Replace ARGS parsing by parse_pid.
	* gnu-nat.c (gnu_attach): Likewise.
	* nto-procfs.c (procfs_attach): Likewise.
	* procfs.c (procfs_attach): Likewise.
	* windows-nat.c (windows_attach): Likewise.
	* inf-ptrace.c (inf_ptrace_attach): Likewise.  Remove variable dummy.
	* inf-ttrace.c (inf_ttrace_attach): Likewise.
	* remote.c (extended_remote_attach_1): Likewise.  New comment on getpid
	check.

gdb/testsuite/
	* gdb.base/attach.exp (attach to nonsense is prohibited): Make the
	"Illegal process-id" expect string more exact.
	(attach to digits-starting nonsense is prohibited): New.
This commit is contained in:
Jan Kratochvil 2010-02-15 17:35:50 +00:00
parent 01a8201190
commit 74164c5624
13 changed files with 76 additions and 47 deletions
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14
gdb/ChangeLog
View File

@ -1,3 +1,17 @@
2010-02-15 Jan Kratochvil <jan.kratochvil@redhat.com>
* defs.h (parse_pid_to_attach): New.
* utils.c (parse_pid_to_attach): New.
* darwin-nat.c (darwin_attach): Replace ARGS parsing by parse_pid.
* gnu-nat.c (gnu_attach): Likewise.
* nto-procfs.c (procfs_attach): Likewise.
* procfs.c (procfs_attach): Likewise.
* windows-nat.c (windows_attach): Likewise.
* inf-ptrace.c (inf_ptrace_attach): Likewise. Remove variable dummy.
* inf-ttrace.c (inf_ttrace_attach): Likewise.
* remote.c (extended_remote_attach_1): Likewise. New comment on getpid
check.
2010-02-14 Masaki Muranaka <monaka@monami-software.com>
* MAINTAINERS: Add myself for write after approval privileges.

5
gdb/darwin-nat.c
View File

@ -1514,10 +1514,7 @@ darwin_attach (struct target_ops *ops, char *args, int from_tty)
struct inferior *inf;
kern_return_t kret;
if (!args)
error_no_arg (_("process-id to attach"));
pid = atoi (args);
pid = parse_pid_to_attach (args);
if (pid == getpid ()) /* Trying to masturbate? */
error (_("I refuse to debug myself!"));

2
gdb/defs.h
View File

@ -426,6 +426,8 @@ int compare_positive_ints (const void *ap, const void *bp);
extern const char *gdb_bfd_errmsg (bfd_error_type error_tag, char **matching);
extern int parse_pid_to_attach (char *args);
/* From demangle.c */
extern void set_demangling_style (char *);

5
gdb/gnu-nat.c
View File

@ -2139,10 +2139,7 @@ gnu_attach (struct target_ops *ops, char *args, int from_tty)
struct inf *inf = cur_inf ();
struct inferior *inferior;
if (!args)
error_no_arg (_("process-id to attach"));
pid = atoi (args);
pid = parse_pid_to_attach (args);
if (pid == getpid ()) /* Trying to masturbate? */
error (_("I refuse to debug myself!"));

10
gdb/inf-ptrace.c
View File

@ -187,17 +187,9 @@ inf_ptrace_attach (struct target_ops *ops, char *args, int from_tty)
{
char *exec_file;
pid_t pid;
char *dummy;
struct inferior *inf;
if (!args)
error_no_arg (_("process-id to attach"));
dummy = args;
pid = strtol (args, &dummy, 0);
/* Some targets don't set errno on errors, grrr! */
if (pid == 0 && args == dummy)
error (_("Illegal process-id: %s."), args);
pid = parse_pid_to_attach (args);
if (pid == getpid ()) /* Trying to masturbate? */
error (_("I refuse to debug myself!"));

9
gdb/inf-ttrace.c
View File

@ -691,17 +691,10 @@ inf_ttrace_attach (struct target_ops *ops, char *args, int from_tty)
{
char *exec_file;
pid_t pid;
char *dummy;
ttevent_t tte;
struct inferior *inf;
if (!args)
error_no_arg (_("process-id to attach"));
dummy = args;
pid = strtol (args, &dummy, 0);
if (pid == 0 && args == dummy)
error (_("Illegal process-id: %s."), args);
pid = parse_pid_to_attach (args);
if (pid == getpid ()) /* Trying to masturbate? */
error (_("I refuse to debug myself!"));

5
gdb/nto-procfs.c
View File

@ -619,10 +619,7 @@ procfs_attach (struct target_ops *ops, char *args, int from_tty)
int pid;
struct inferior *inf;
if (!args)
error_no_arg (_("process-id to attach"));
pid = atoi (args);
pid = parse_pid_to_attach (args);
if (pid == getpid ())
error (_("Attaching GDB to itself is not a good idea..."));

4
gdb/procfs.c
View File

@ -3606,10 +3606,8 @@ procfs_attach (struct target_ops *ops, char *args, int from_tty)
char *exec_file;
int pid;
if (!args)
error_no_arg (_("process-id to attach"));
pid = parse_pid_to_attach (args);
pid = atoi (args);
if (pid == getpid ())
error (_("Attaching GDB to itself is not a good idea..."));

11
gdb/remote.c
View File

@ -3857,17 +3857,12 @@ extended_remote_attach_1 (struct target_ops *target, char *args, int from_tty)
{
struct remote_state *rs = get_remote_state ();
int pid;
char *dummy;
char *wait_status = NULL;
if (!args)
error_no_arg (_("process-id to attach"));
pid = parse_pid_to_attach (args);
dummy = args;
pid = strtol (args, &dummy, 0);
/* Some targets don't set errno on errors, grrr! */
if (pid == 0 && args == dummy)
error (_("Illegal process-id: %s."), args);
/* Remote PID can be freely equal to getpid, do not check it here the same
way as in other targets. */
if (remote_protocol_packets[PACKET_vAttach].support == PACKET_DISABLE)
error (_("This target does not support attaching to a process"));

6
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2010-02-15 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.base/attach.exp (attach to nonsense is prohibited): Make the
"Illegal process-id" expect string more exact.
(attach to digits-starting nonsense is prohibited): New.
2010-02-13 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.base/prelink.exp (set verbose on): New.

23
gdb/testsuite/gdb.base/attach.exp
View File

@ -93,7 +93,28 @@ proc do_attach_tests {} {
set test "attach to nonsense is prohibited"
gdb_test_multiple "attach abc" "$test" {
-re "Illegal process-id: abc.*$gdb_prompt $" {
-re "Illegal process-id: abc\\.\r\n$gdb_prompt $" {
pass "$test"
}
-re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {
# Response expected from /proc-based systems.
pass "$test"
}
-re "Can't attach to process..*$gdb_prompt $" {
# Response expected on Cygwin
pass "$test"
}
-re "Attaching to.*$gdb_prompt $" {
fail "$test (bogus pid allowed)"
}
}
# Verify that we cannot attach to nonsense even if its initial part is
# a valid PID.
set test "attach to digits-starting nonsense is prohibited"
gdb_test_multiple "attach ${testpid}x" "$test" {
-re "Illegal process-id: ${testpid}x\\.\r\n$gdb_prompt $" {
pass "$test"
}
-re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {

20
gdb/utils.c
View File

@ -3648,6 +3648,26 @@ gdb_bfd_errmsg (bfd_error_type error_tag, char **matching)
return ret;
}
/* Return ARGS parsed as a valid pid, or throw an error. */
int
parse_pid_to_attach (char *args)
{
unsigned long pid;
char *dummy;
if (!args)
error_no_arg (_("process-id to attach"));
dummy = args;
pid = strtoul (args, &dummy, 0);
/* Some targets don't set errno on errors, grrr! */
if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)])
error (_("Illegal process-id: %s."), args);
return pid;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_utils;

5
gdb/windows-nat.c
View File

@ -1691,8 +1691,7 @@ windows_attach (struct target_ops *ops, char *args, int from_tty)
BOOL ok;
DWORD pid;
if (!args)
error_no_arg (_("process-id to attach"));
pid = parse_pid_to_attach (args);
if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0)
{
@ -1700,8 +1699,6 @@ windows_attach (struct target_ops *ops, char *args, int from_tty)
printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n");
}
pid = strtoul (args, 0, 0); /* Windows pid */
windows_init_thread_list ();
ok = DebugActiveProcess (pid);
saw_create = 0;