| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | Samba system utilities
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| 4 | Copyright (C) Andrew Tridgell 1992-1998
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| 5 | Copyright (C) Jeremy Allison 1998-2002
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| 6 | Copyright (C) Jelmer Vernooij 2006
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| 7 |
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| 8 | ** NOTE! The following LGPL license applies to the replace
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| 9 | ** library. This does NOT imply that all of Samba is released
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| 10 | ** under the LGPL
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| 11 |
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| 12 | This library is free software; you can redistribute it and/or
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| 13 | modify it under the terms of the GNU Lesser General Public
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| 14 | License as published by the Free Software Foundation; either
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| 15 | version 3 of the License, or (at your option) any later version.
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| 16 |
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| 17 | This library is distributed in the hope that it will be useful,
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| 18 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | Lesser General Public License for more details.
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| 21 |
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| 22 | You should have received a copy of the GNU Lesser General Public
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| 23 | License along with this library; if not, see <http://www.gnu.org/licenses/>.
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| 24 | */
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| 25 |
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| 26 | #include "replace.h"
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| 27 | #ifdef HAVE_DL_H
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| 28 | #include <dl.h>
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| 29 | #endif
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| 30 |
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| 31 | #ifndef HAVE_DLOPEN
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| 32 | #ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
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| 33 | void *rep_dlopen(const char *name, unsigned int flags)
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| 34 | #else
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| 35 | void *rep_dlopen(const char *name, int flags)
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| 36 | #endif
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| 37 | {
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| 38 | #ifdef HAVE_SHL_LOAD
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| 39 | if (name == NULL)
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| 40 | return PROG_HANDLE;
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| 41 | return (void *)shl_load(name, flags, 0);
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| 42 | #else
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| 43 | return NULL;
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| 44 | #endif
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| 45 | }
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| 46 | #endif
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| 47 |
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| 48 | #ifndef HAVE_DLSYM
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| 49 | void *rep_dlsym(void *handle, const char *symbol)
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| 50 | {
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| 51 | #ifdef HAVE_SHL_FINDSYM
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| 52 | void *sym_addr;
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| 53 | if (!shl_findsym((shl_t *)&handle, symbol, TYPE_UNDEFINED, &sym_addr))
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| 54 | return sym_addr;
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| 55 | #endif
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| 56 | return NULL;
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| 57 | }
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| 58 | #endif
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| 59 |
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| 60 | #ifndef HAVE_DLERROR
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| 61 | char *rep_dlerror(void)
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| 62 | {
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| 63 | return "dynamic loading of objects not supported on this platform";
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| 64 | }
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| 65 | #endif
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| 66 |
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| 67 | #ifndef HAVE_DLCLOSE
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| 68 | int rep_dlclose(void *handle)
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| 69 | {
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| 70 | #ifdef HAVE_SHL_CLOSE
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| 71 | return shl_unload((shl_t)handle);
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| 72 | #else
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| 73 | return 0;
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| 74 | #endif
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| 75 | }
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| 76 | #endif
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