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1 /* |
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2 rand.c - implementation of the elf_rand(3) function. |
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3 Copyright (C) 1995 - 1998 Michael Riepe |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Library General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Library General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Library General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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18 */ |
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19 |
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20 #include <private.h> |
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21 |
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22 #ifndef lint |
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23 static const char rcsid[] = "@(#) $Id: rand.c,v 1.6 2005/05/21 15:39:25 michael Exp $"; |
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24 #endif /* lint */ |
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25 |
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26 size_t |
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27 elf_rand(Elf *elf, size_t offset) { |
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28 if (!elf) { |
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29 return 0; |
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30 } |
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31 elf_assert(elf->e_magic == ELF_MAGIC); |
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32 if (elf->e_kind != ELF_K_AR) { |
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33 seterr(ERROR_NOTARCHIVE); |
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34 } |
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35 else if (offset <= 0 || offset > elf->e_size) { |
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36 seterr(ERROR_BADOFF); |
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37 } |
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38 else { |
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39 elf->e_off = offset; |
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40 return offset; |
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41 } |
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42 return 0; |
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43 } |