1 | /*- |
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2 | * Copyright (c) 2006,2008 Joseph Koshy |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * |
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14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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24 | * SUCH DAMAGE. |
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25 | */ |
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26 | |
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27 | #include <sys/cdefs.h> |
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28 | |
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29 | #include <ar.h> |
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30 | #include <libelf.h> |
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31 | |
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32 | #include "_libelf.h" |
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33 | |
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34 | LIBELF_VCSID("$Id: elf_shstrndx.c 466 2009-08-04 17:17:42Z jkoshy $"); |
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35 | |
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36 | static int |
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37 | _libelf_getshdrstrndx(Elf *e, size_t *strndx) |
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38 | { |
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39 | void *eh; |
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40 | int ec; |
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41 | |
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42 | if (e == NULL || e->e_kind != ELF_K_ELF || |
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43 | ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) { |
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44 | LIBELF_SET_ERROR(ARGUMENT, 0); |
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45 | return (-1); |
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46 | } |
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47 | |
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48 | if ((eh = _libelf_ehdr(e, ec, 0)) == NULL) |
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49 | return (-1); |
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50 | |
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51 | *strndx = e->e_u.e_elf.e_strndx; |
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52 | |
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53 | return (0); |
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54 | } |
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55 | |
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56 | int |
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57 | elf_getshdrstrndx(Elf *e, size_t *strndx) |
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58 | { |
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59 | return (_libelf_getshdrstrndx(e, strndx)); |
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60 | } |
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61 | |
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62 | int |
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63 | elf_getshstrndx(Elf *e, size_t *strndx) /* Deprecated API. */ |
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64 | { |
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65 | return (_libelf_getshdrstrndx(e, strndx) >= 0); |
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66 | } |
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67 | |
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68 | int |
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69 | elf_setshstrndx(Elf *e, size_t strndx) |
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70 | { |
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71 | void *eh; |
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72 | int ec; |
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73 | |
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74 | if (e == NULL || e->e_kind != ELF_K_ELF || |
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75 | ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) || |
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76 | ((eh = _libelf_ehdr(e, ec, 0)) == NULL)) { |
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77 | LIBELF_SET_ERROR(ARGUMENT, 0); |
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78 | return (0); |
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79 | } |
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80 | |
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81 | return (_libelf_setshstrndx(e, eh, ec, strndx)); |
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82 | } |
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