| /* mlib.c -- mlib library |
| |
| Copyright (C) 2002, 2006 Free Software Foundation, Inc. |
| Written by Greg Eisenhauer, 2002 |
| Extracted from mdemo.c |
| |
| This file is part of GNU Libtool. |
| |
| GNU Libtool 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. |
| |
| GNU Libtool 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 GNU Libtool; see the file COPYING. If not, a copy |
| can be downloaded from http://www.gnu.org/licenses/gpl.html, |
| or obtained by writing to the Free Software Foundation, Inc., |
| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "foo.h" |
| #include "ltdl.h" |
| #include <stdio.h> |
| |
| int |
| test_dl (char *filename) |
| { |
| lt_dlhandle handle; |
| const lt_dlinfo *info; |
| int (*pfoo1)() = 0; |
| int (*pfoo2)() = 0; |
| int (*phello)() = 0; |
| int *pnothing = 0; |
| int ret = 0; |
| |
| handle = lt_dlopen(filename); |
| if (!handle) { |
| fprintf (stderr, "can't open the module %s!\n", filename); |
| fprintf (stderr, "error was: %s\n", lt_dlerror()); |
| return 1; |
| } |
| |
| info = lt_dlgetinfo(handle); |
| if (!info) { |
| fprintf (stderr, "can't get module info: %s\n", lt_dlerror()); |
| return 1; |
| } |
| if (info->name) { |
| printf ("module name: %s\n", info->name); |
| } else { |
| printf ("module is not a libtool module\n"); |
| } |
| printf ("module filename: %s\n", info->filename); |
| printf ("module reference count: %i\n", info->ref_count); |
| |
| phello = (int(*)())lt_dlsym(handle, "hello"); |
| if (phello) |
| { |
| int value = (*phello) (); |
| |
| printf ("hello returned: %i\n", value); |
| if (value == HELLO_RET) |
| printf("hello is ok!\n"); |
| } |
| else |
| { |
| fprintf (stderr, "did not find the `hello' function\n"); |
| fprintf (stderr, "error was: %s\n", lt_dlerror()); |
| ret = 1; |
| } |
| |
| pnothing = (int*)lt_dlsym(handle, "nothing"); |
| /* Try assigning to the nothing variable. */ |
| if (pnothing) |
| *pnothing = 1; |
| else |
| { |
| fprintf (stderr, "did not find the `nothing' variable\n"); |
| fprintf (stderr, "error was: %s\n", lt_dlerror()); |
| ret = 1; |
| } |
| |
| pfoo1 = (int(*)())lt_dlsym(handle, "foo1"); |
| /* Just call the functions and check return values. */ |
| if (pfoo1) |
| { |
| if ((*pfoo1) () == FOO_RET) |
| printf("foo1 is ok!\n"); |
| else |
| ret = 1; |
| } |
| else { |
| pfoo2 = (int(*)())lt_dlsym(handle, "foo2"); |
| if (pfoo2) |
| { |
| if ((*pfoo2) () == FOO_RET) |
| printf("foo2 is ok!\n"); |
| else ret = 1; |
| } |
| else |
| { |
| fprintf (stderr, "did not find any of the `foo' functions\n"); |
| fprintf (stderr, "error was: %s\n", lt_dlerror()); |
| ret = 1; |
| } |
| } |
| lt_dlclose(handle); |
| return ret; |
| } |
| |
| int |
| mlib_func (int argc, char **argv) |
| { |
| int ret = 0; |
| int i; |
| /* |
| * Would be nice if this somehow worked for libraries, not just executables. |
| * LTDL_SET_PRELOADED_SYMBOLS(); |
| */ |
| if (lt_dlinit() != 0) { |
| fprintf (stderr, "error during initialization: %s\n", lt_dlerror()); |
| return 1; |
| } |
| |
| for (i = 1; i < argc; i++) |
| if (test_dl(argv[i])) |
| ret = 1; |
| |
| lt_dlexit(); |
| return ret; |
| } |