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* ext/dl/handle.c (rb_dlhandle_sym): get rid of buffer overrun,

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and try ASCII WINAPI versions too.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22702 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2009-03-02 01:50:56 +00:00
parent 9fb56049eb
commit 46e06b572b
2 changed files with 30 additions and 30 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Mon Mar 2 10:50:53 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/dl/handle.c (rb_dlhandle_sym): get rid of buffer overrun,
and try ASCII WINAPI versions too.
Mon Mar 2 10:29:17 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* eval.c (rb_longjmp), include/ruby/intern.h (ruby_cleanup): fixed

55
ext/dl/handle.c
View file

@ -160,53 +160,48 @@ rb_dlhandle_sym(VALUE self, VALUE sym)
func = dlsym(handle, name);
CHECK_DLERROR;
if( !func ){
#if defined(__CYGWIN__) || defined(WIN32) || defined(__MINGW32__)
int len = strlen(name);
char *name_n;
#if defined(__CYGWIN__) || defined(_WIN32) || defined(__MINGW32__)
{
int len = strlen(name);
char *name_a = (char*)xmalloc(len+2);
strcpy(name_a, name);
name_a[len] = 'A';
name_a[len+1] = '\0';
func = dlsym(handle, name_a);
xfree(name_a);
CHECK_DLERROR;
if( !func ){
for( i = 0; i < 256; i += 4 ){
int len = strlen(name);
char *name_n = (char*)xmalloc(len+5);
sprintf(name_n, "%s@%d%c", name, i, 0);
func = dlsym(handle, name_n);
xfree(name_n);
CHECK_DLERROR;
if( func )
{
break;
}
}
CHECK_DLERROR;
if( !func ){
rb_raise(rb_eDLError, "unknown symbol \"%s\"", name);
}
if( func ){
xfree(name_a);
goto found;
}
name_n = xrealloc(name_a, len+6);
}
#else
name_n = (char*)xmalloc(len+6);
#endif
memcpy(name_n, name, len);
name_n[len++] = '@';
for( i = 0; i < 256; i += 4 ){
int len = strlen(name);
char *name_n = (char*)xmalloc(len+4);
sprintf(name_n, "%s@%d", name, i);
sprintf(name_n + len, "%d", i);
func = dlsym(handle, name_n);
xfree(name_n);
CHECK_DLERROR;
if( func ){
break;
}
if( func ) break;
}
CHECK_DLERROR;
if( !func ){
xfree(name_n);
if( func ) goto found;
name_n[len-1] = 'A';
name_n[len++] = '@';
for( i = 0; i < 256; i += 4 ){
sprintf(name_n + len, "%d", i);
func = dlsym(handle, name_n);
CHECK_DLERROR;
if( func ) break;
}
if( !func ){
rb_raise(rb_eDLError, "unknown symbol \"%s\"", name);
}
#endif
}
found:
return PTR2NUM(func);
}