claunia/libcdio-osx
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Was accessing outside of check2list causing wild looping. Turn all

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sprintf's to snprintf's and check the return.

Turn check1list and check2list looping into a fixed constant number of
iterations rather than rely on a sentinal.
This commit is contained in:
rocky
2008-06-25 07:46:20 +00:00
parent 3685c0d78e
commit 9c32ef00a0
2 changed files with 18 additions and 12 deletions
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4
lib/driver/Makefile.am
View File

@@ -1,4 +1,4 @@
# $Id: Makefile.am,v 1.24 2008/03/27 17:40:50 rocky Exp $
# $Id: Makefile.am,v 1.25 2008/06/25 07:46:20 rocky Exp $
#
# Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008
# Rocky Bernstein <rocky@gnu.org>
@@ -101,7 +101,7 @@ lib_LTLIBRARIES = libcdio.la
libcdio_la_LIBADD = @LIBICONV@
libcdio_la_SOURCES = $(libcdio_sources)
libcdio_la_ldflags = -version-info $(libcdio_la_CURRENT):$(libcdio_la_REVISION):$(libcdio_la_AGE)
libcdio_la_ldflags = -version-info $(libcdio_la_CURRENT):$(libcdio_la_REVISION):$(libcdio_la_AGE) @LT_NO_UNDEFINED@
INCLUDES = $(LIBCDIO_CFLAGS)

26
lib/driver/gnu_linux.c
View File

@@ -1,5 +1,5 @@
/*
$Id: gnu_linux.c,v 1.32 2008/06/13 19:33:13 flameeyes Exp $
$Id: gnu_linux.c,v 1.33 2008/06/25 07:46:21 rocky Exp $
Copyright (C) 2001 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2008
@@ -27,7 +27,7 @@
# include "config.h"
#endif
static const char _rcsid[] = "$Id: gnu_linux.c,v 1.32 2008/06/13 19:33:13 flameeyes Exp $";
static const char _rcsid[] = "$Id: gnu_linux.c,v 1.33 2008/06/25 07:46:21 rocky Exp $";
#ifdef HAVE_STRING_H
#include <string.h>
@@ -1327,8 +1327,9 @@ set_arg_linux (void *p_user_data, const char key[], const char value[])
/* checklist: /dev/cdrom, /dev/dvd /dev/hd?, /dev/scd? /dev/sr? */
static const char checklist1[][40] = {
{"cdrom"}, {"dvd"}, {""}
{"cdrom"}, {"dvd"}
};
static const int checklist1_size = sizeof(checklist1) / sizeof(checklist1[0]);
static const struct
{
@@ -1341,8 +1342,9 @@ checklist2[] =
{ "/dev/hd%c", 'a', 'z' },
{ "/dev/scd%d", 0, 27 },
{ "/dev/sr%d", 0, 27 },
{ /* End of array */ }
};
static const int checklist2_size = sizeof(checklist2) / sizeof(checklist2[0]);
/* Set CD-ROM drive speed */
static driver_return_code_t
@@ -1373,8 +1375,9 @@ cdio_get_devices_linux (void)
/* Scan the system for CD-ROM drives.
*/
for ( i=0; strlen(checklist1[i]) > 0; ++i ) {
sprintf(drive, "/dev/%s", checklist1[i]);
for ( i=0; i < checklist1_size; ++i ) {
if (snprintf(drive, sizeof(drive), "/dev/%s", checklist1[i]) < 0)
continue;
if ( is_cdrom_linux(drive, NULL) > 0 ) {
cdio_add_device_list(&drives, drive, &num_drives);
}
@@ -1395,10 +1398,11 @@ cdio_get_devices_linux (void)
/* Scan the system for CD-ROM drives.
Not always 100% reliable, so use the USE_MNTENT code above first.
*/
for ( i=0; checklist2[i].format; ++i ) {
for ( i=0; i < checklist2_size; ++i ) {
unsigned int j;
for ( j=checklist2[i].num_min; j<=checklist2[i].num_max; ++j ) {
sprintf(drive, checklist2[i].format, j);
if (snprintf(drive, sizeof(drive), checklist2[i].format, j) < 0)
continue;
if ( (is_cdrom_linux(drive, NULL)) > 0 ) {
cdio_add_device_list(&drives, drive, &num_drives);
}
@@ -1426,7 +1430,8 @@ cdio_get_default_device_linux(void)
/* Scan the system for CD-ROM drives.
*/
for ( i=0; strlen(checklist1[i]) > 0; ++i ) {
sprintf(drive, "/dev/%s", checklist1[i]);
if (snprintf(drive, sizeof(drive), "/dev/%s", checklist1[i]) < 0)
continue;
if ( is_cdrom_linux(drive, NULL) > 0 ) {
return strdup(drive);
}
@@ -1446,7 +1451,8 @@ cdio_get_default_device_linux(void)
for ( i=0; checklist2[i].format; ++i ) {
unsigned int j;
for ( j=checklist2[i].num_min; j<=checklist2[i].num_max; ++j ) {
sprintf(drive, checklist2[i].format, j);
if (snprintf(drive, sizeof(drive), checklist2[i].format, j) < 0)
continue;
if ( is_cdrom_linux(drive, NULL) > 0 ) {
return(strdup(drive));
}