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1 /* |
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2 flag.c - implementation of the elf_flag*(3) functions. |
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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: flag.c,v 1.6 2005/05/21 15:39:22 michael Exp $"; |
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24 #endif /* lint */ |
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25 |
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26 static unsigned |
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27 _elf_flag(unsigned *f, Elf_Cmd cmd, unsigned flags) { |
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28 if (cmd == ELF_C_SET) { |
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29 return *f |= flags; |
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30 } |
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31 if (cmd == ELF_C_CLR) { |
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32 return *f &= ~flags; |
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33 } |
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34 seterr(ERROR_INVALID_CMD); |
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35 return 0; |
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36 } |
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37 |
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38 unsigned |
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39 elf_flagdata(Elf_Data *data, Elf_Cmd cmd, unsigned flags) { |
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40 Scn_Data *sd = (Scn_Data*)data; |
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41 |
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42 if (!sd) { |
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43 return 0; |
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44 } |
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45 elf_assert(sd->sd_magic == DATA_MAGIC); |
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46 return _elf_flag(&sd->sd_data_flags, cmd, flags); |
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47 } |
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48 |
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49 unsigned |
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50 elf_flagehdr(Elf *elf, Elf_Cmd cmd, unsigned flags) { |
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51 if (!elf) { |
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52 return 0; |
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53 } |
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54 elf_assert(elf->e_magic == ELF_MAGIC); |
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55 return _elf_flag(&elf->e_ehdr_flags, cmd, flags); |
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56 } |
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57 |
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58 unsigned |
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59 elf_flagelf(Elf *elf, Elf_Cmd cmd, unsigned flags) { |
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60 if (!elf) { |
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61 return 0; |
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62 } |
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63 elf_assert(elf->e_magic == ELF_MAGIC); |
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64 return _elf_flag(&elf->e_elf_flags, cmd, flags); |
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65 } |
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66 |
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67 unsigned |
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68 elf_flagphdr(Elf *elf, Elf_Cmd cmd, unsigned flags) { |
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69 if (!elf) { |
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70 return 0; |
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71 } |
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72 elf_assert(elf->e_magic == ELF_MAGIC); |
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73 return _elf_flag(&elf->e_phdr_flags, cmd, flags); |
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74 } |
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75 |
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76 unsigned |
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77 elf_flagscn(Elf_Scn *scn, Elf_Cmd cmd, unsigned flags) { |
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78 if (!scn) { |
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79 return 0; |
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80 } |
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81 elf_assert(scn->s_magic == SCN_MAGIC); |
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82 return _elf_flag(&scn->s_scn_flags, cmd, flags); |
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83 } |
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84 |
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85 unsigned |
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86 elf_flagshdr(Elf_Scn *scn, Elf_Cmd cmd, unsigned flags) { |
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87 if (!scn) { |
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88 return 0; |
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89 } |
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90 elf_assert(scn->s_magic == SCN_MAGIC); |
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91 return _elf_flag(&scn->s_shdr_flags, cmd, flags); |
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92 } |