| 1 | /* Library function for scanning an archive file. | 
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| 2 | Copyright (C) 1987,89,91,92,93,94,95,97 Free Software Foundation, Inc. | 
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| 3 |  | 
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| 4 | This program is free software; you can redistribute it and/or modify | 
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| 5 | it under the terms of the GNU General Public License as published by | 
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| 6 | the Free Software Foundation; either version 2, or (at your option) | 
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| 7 | any later version. | 
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| 8 |  | 
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| 9 | This program is distributed in the hope that it will be useful, | 
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | 
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
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| 12 | GNU General Public License for more details. | 
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| 13 |  | 
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| 14 | You should have received a copy of the GNU General Public License | 
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| 15 | along with this program; if not, write to the Free Software | 
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| 16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | 
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| 17 | USA.  */ | 
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| 18 |  | 
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| 19 | #include "make.h" | 
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| 20 |  | 
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| 21 | #ifdef HAVE_FCNTL_H | 
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| 22 | #include <fcntl.h> | 
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| 23 | #else | 
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| 24 | #include <sys/file.h> | 
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| 25 | #endif | 
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| 26 |  | 
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| 27 | #ifndef NO_ARCHIVES | 
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| 28 |  | 
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| 29 |  | 
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| 30 | #ifdef VMS | 
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| 31 | #include <lbrdef.h> | 
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| 32 | #include <mhddef.h> | 
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| 33 | #include <credef.h> | 
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| 34 | #include <descrip.h> | 
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| 35 | #include <ctype.h> | 
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| 36 | #if __DECC | 
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| 37 | #include <unixlib.h> | 
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| 38 | #include <lbr$routines.h> | 
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| 39 | #endif | 
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| 40 |  | 
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| 41 | static void *VMS_lib_idx; | 
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| 42 |  | 
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| 43 | static char *VMS_saved_memname; | 
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| 44 |  | 
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| 45 | static time_t VMS_member_date; | 
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| 46 |  | 
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| 47 | static long int (*VMS_function) (); | 
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| 48 |  | 
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| 49 | static int | 
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| 50 | VMS_get_member_info (struct dsc$descriptor_s *module, unsigned long *rfa) | 
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| 51 | { | 
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| 52 | int status, i; | 
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| 53 | long int fnval; | 
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| 54 |  | 
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| 55 | time_t val; | 
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| 56 |  | 
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| 57 | static struct dsc$descriptor_s bufdesc = | 
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| 58 | { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, NULL }; | 
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| 59 |  | 
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| 60 | struct mhddef *mhd; | 
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| 61 | char filename[128]; | 
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| 62 |  | 
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| 63 | bufdesc.dsc$a_pointer = filename; | 
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| 64 | bufdesc.dsc$w_length = sizeof (filename); | 
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| 65 |  | 
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| 66 | status = lbr$set_module (&VMS_lib_idx, rfa, &bufdesc, | 
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| 67 | &bufdesc.dsc$w_length, 0); | 
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| 68 | if (! (status & 1)) | 
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| 69 | { | 
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| 70 | error (NILF, _("lbr$set_module failed to extract module info, status = %d"), | 
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| 71 | status); | 
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| 72 |  | 
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| 73 | lbr$close (&VMS_lib_idx); | 
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| 74 |  | 
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| 75 | return 0; | 
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| 76 | } | 
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| 77 |  | 
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| 78 | mhd = (struct mhddef *) filename; | 
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| 79 |  | 
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| 80 | #ifdef __DECC | 
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| 81 | /* John Fowler <jfowler@nyx.net> writes this is needed in his environment, | 
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| 82 | * but that decc$fix_time() isn't documented to work this way.  Let me | 
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| 83 | * know if this causes problems in other VMS environments. | 
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| 84 | */ | 
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| 85 | val = decc$fix_time (&mhd->mhd$l_datim) + timezone - daylight*3600; | 
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| 86 | #endif | 
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| 87 |  | 
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| 88 | for (i = 0; i < module->dsc$w_length; i++) | 
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| 89 | filename[i] = _tolower ((unsigned char)module->dsc$a_pointer[i]); | 
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| 90 |  | 
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| 91 | filename[i] = '\0'; | 
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| 92 |  | 
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| 93 | VMS_member_date = (time_t) -1; | 
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| 94 |  | 
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| 95 | fnval = | 
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| 96 | (*VMS_function) (-1, filename, 0, 0, 0, 0, val, 0, 0, 0, | 
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| 97 | VMS_saved_memname); | 
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| 98 |  | 
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| 99 | if (fnval) | 
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| 100 | { | 
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| 101 | VMS_member_date = fnval; | 
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| 102 | return 0; | 
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| 103 | } | 
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| 104 | else | 
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| 105 | return 1; | 
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| 106 | } | 
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| 107 |  | 
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| 108 | /* Takes three arguments ARCHIVE, FUNCTION and ARG. | 
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| 109 |  | 
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| 110 | Open the archive named ARCHIVE, find its members one by one, | 
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| 111 | and for each one call FUNCTION with the following arguments: | 
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| 112 | archive file descriptor for reading the data, | 
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| 113 | member name, | 
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| 114 | member name might be truncated flag, | 
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| 115 | member header position in file, | 
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| 116 | member data position in file, | 
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| 117 | member data size, | 
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| 118 | member date, | 
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| 119 | member uid, | 
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| 120 | member gid, | 
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| 121 | member protection mode, | 
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| 122 | ARG. | 
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| 123 |  | 
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| 124 | NOTE: on VMS systems, only name, date, and arg are meaningful! | 
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| 125 |  | 
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| 126 | The descriptor is poised to read the data of the member | 
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| 127 | when FUNCTION is called.  It does not matter how much | 
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| 128 | data FUNCTION reads. | 
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| 129 |  | 
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| 130 | If FUNCTION returns nonzero, we immediately return | 
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| 131 | what FUNCTION returned. | 
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| 132 |  | 
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| 133 | Returns -1 if archive does not exist, | 
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| 134 | Returns -2 if archive has invalid format. | 
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| 135 | Returns 0 if have scanned successfully.  */ | 
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| 136 |  | 
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| 137 | long int | 
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| 138 | ar_scan (char *archive, long int (*function) PARAMS ((void)), long int arg) | 
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| 139 | { | 
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| 140 | char *p; | 
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| 141 |  | 
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| 142 | static struct dsc$descriptor_s libdesc = | 
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| 143 | { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, NULL }; | 
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| 144 |  | 
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| 145 | unsigned long func = LBR$C_READ; | 
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| 146 | unsigned long type = LBR$C_TYP_UNK; | 
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| 147 | unsigned long index = 1; | 
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| 148 |  | 
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| 149 | int status; | 
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| 150 |  | 
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| 151 | status = lbr$ini_control (&VMS_lib_idx, &func, &type, 0); | 
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| 152 |  | 
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| 153 | if (! (status & 1)) | 
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| 154 | { | 
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| 155 | error (NILF, _("lbr$ini_control failed with status = %d"),status); | 
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| 156 | return -2; | 
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| 157 | } | 
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| 158 |  | 
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| 159 | libdesc.dsc$a_pointer = archive; | 
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| 160 | libdesc.dsc$w_length = strlen (archive); | 
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| 161 |  | 
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| 162 | status = lbr$open (&VMS_lib_idx, &libdesc, 0, 0, 0, 0, 0); | 
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| 163 |  | 
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| 164 | if (! (status & 1)) | 
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| 165 | { | 
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| 166 | error (NILF, _("unable to open library `%s' to lookup member `%s'"), | 
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| 167 | archive, (char *)arg); | 
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| 168 | return -1; | 
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| 169 | } | 
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| 170 |  | 
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| 171 | VMS_saved_memname = (char *)arg; | 
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| 172 |  | 
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| 173 | /* For comparison, delete .obj from arg name.  */ | 
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| 174 |  | 
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| 175 | p = strrchr (VMS_saved_memname, '.'); | 
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| 176 | if (p) | 
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| 177 | *p = '\0'; | 
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| 178 |  | 
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| 179 | VMS_function = function; | 
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| 180 |  | 
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| 181 | VMS_member_date = (time_t) -1; | 
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| 182 | lbr$get_index (&VMS_lib_idx, &index, VMS_get_member_info, 0); | 
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| 183 |  | 
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| 184 | /* Undo the damage.  */ | 
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| 185 | if (p) | 
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| 186 | *p = '.'; | 
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| 187 |  | 
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| 188 | lbr$close (&VMS_lib_idx); | 
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| 189 |  | 
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| 190 | return VMS_member_date > 0 ? VMS_member_date : 0; | 
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| 191 | } | 
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| 192 |  | 
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| 193 | #else /* !VMS */ | 
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| 194 |  | 
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| 195 | /* SCO Unix's compiler defines both of these.  */ | 
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| 196 | #ifdef  M_UNIX | 
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| 197 | #undef  M_XENIX | 
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| 198 | #endif | 
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| 199 |  | 
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| 200 | /* On the sun386i and in System V rel 3, ar.h defines two different archive | 
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| 201 | formats depending upon whether you have defined PORTAR (normal) or PORT5AR | 
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| 202 | (System V Release 1).  There is no default, one or the other must be defined | 
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| 203 | to have a nonzero value.  */ | 
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| 204 |  | 
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| 205 | #if (!defined (PORTAR) || PORTAR == 0) && (!defined (PORT5AR) || PORT5AR == 0) | 
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| 206 | #undef  PORTAR | 
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| 207 | #ifdef M_XENIX | 
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| 208 | /* According to Jim Sievert <jas1@rsvl.unisys.com>, for SCO XENIX defining | 
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| 209 | PORTAR to 1 gets the wrong archive format, and defining it to 0 gets the | 
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| 210 | right one.  */ | 
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| 211 | #define PORTAR 0 | 
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| 212 | #else | 
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| 213 | #define PORTAR 1 | 
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| 214 | #endif | 
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| 215 | #endif | 
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| 216 |  | 
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| 217 | /* On AIX, define these symbols to be sure to get both archive formats. | 
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| 218 | AIX 4.3 introduced the "big" archive format to support 64-bit object | 
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| 219 | files, so on AIX 4.3 systems we need to support both the "normal" and | 
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| 220 | "big" archive formats.  An archive's format is indicated in the | 
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| 221 | "fl_magic" field of the "FL_HDR" structure.  For a normal archive, | 
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| 222 | this field will be the string defined by the AIAMAG symbol.  For a | 
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| 223 | "big" archive, it will be the string defined by the AIAMAGBIG symbol | 
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| 224 | (at least on AIX it works this way). | 
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| 225 |  | 
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| 226 | Note: we'll define these symbols regardless of which AIX version | 
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| 227 | we're compiling on, but this is okay since we'll use the new symbols | 
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| 228 | only if they're present.  */ | 
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| 229 | #ifdef _AIX | 
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| 230 | # define __AR_SMALL__ | 
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| 231 | # define __AR_BIG__ | 
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| 232 | #endif | 
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| 233 |  | 
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| 234 | #ifndef WINDOWS32 | 
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| 235 | # ifndef __BEOS__ | 
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| 236 | #  include <ar.h> | 
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| 237 | # else | 
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| 238 | /* BeOS 5 doesn't have <ar.h> but has archives in the same format | 
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| 239 | * as many other Unices.  This was taken from GNU binutils for BeOS. | 
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| 240 | */ | 
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| 241 | #  define ARMAG "!<arch>\n"     /* String that begins an archive file.  */ | 
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| 242 | #  define SARMAG 8              /* Size of that string.  */ | 
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| 243 | #  define ARFMAG "`\n"          /* String in ar_fmag at end of each header.  */ | 
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| 244 | struct ar_hdr | 
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| 245 | { | 
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| 246 | char ar_name[16];           /* Member file name, sometimes / terminated. */ | 
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| 247 | char ar_date[12];           /* File date, decimal seconds since Epoch.  */ | 
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| 248 | char ar_uid[6], ar_gid[6];  /* User and group IDs, in ASCII decimal.  */ | 
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| 249 | char ar_mode[8];            /* File mode, in ASCII octal.  */ | 
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| 250 | char ar_size[10];           /* File size, in ASCII decimal.  */ | 
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| 251 | char ar_fmag[2];            /* Always contains ARFMAG.  */ | 
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| 252 | }; | 
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| 253 | # endif | 
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| 254 | #else | 
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| 255 | /* These should allow us to read Windows (VC++) libraries (according to Frank | 
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| 256 | * Libbrecht <frankl@abzx.belgium.hp.com>) | 
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| 257 | */ | 
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| 258 | # include <windows.h> | 
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| 259 | # include <windef.h> | 
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| 260 | # include <io.h> | 
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| 261 | # define ARMAG      IMAGE_ARCHIVE_START | 
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| 262 | # define SARMAG     IMAGE_ARCHIVE_START_SIZE | 
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| 263 | # define ar_hdr     _IMAGE_ARCHIVE_MEMBER_HEADER | 
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| 264 | # define ar_name    Name | 
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| 265 | # define ar_mode    Mode | 
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| 266 | # define ar_size    Size | 
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| 267 | # define ar_date    Date | 
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| 268 | # define ar_uid     UserID | 
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| 269 | # define ar_gid     GroupID | 
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| 270 | #endif | 
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| 271 |  | 
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| 272 | /* Cray's <ar.h> apparently defines this.  */ | 
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| 273 | #ifndef AR_HDR_SIZE | 
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| 274 | # define   AR_HDR_SIZE  (sizeof (struct ar_hdr)) | 
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| 275 | #endif | 
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| 276 |  | 
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| 277 |  | 
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| 278 | /* Takes three arguments ARCHIVE, FUNCTION and ARG. | 
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| 279 |  | 
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| 280 | Open the archive named ARCHIVE, find its members one by one, | 
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| 281 | and for each one call FUNCTION with the following arguments: | 
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| 282 | archive file descriptor for reading the data, | 
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| 283 | member name, | 
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| 284 | member name might be truncated flag, | 
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| 285 | member header position in file, | 
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| 286 | member data position in file, | 
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| 287 | member data size, | 
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| 288 | member date, | 
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| 289 | member uid, | 
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| 290 | member gid, | 
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| 291 | member protection mode, | 
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| 292 | ARG. | 
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| 293 |  | 
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| 294 | The descriptor is poised to read the data of the member | 
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| 295 | when FUNCTION is called.  It does not matter how much | 
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| 296 | data FUNCTION reads. | 
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| 297 |  | 
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| 298 | If FUNCTION returns nonzero, we immediately return | 
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| 299 | what FUNCTION returned. | 
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| 300 |  | 
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| 301 | Returns -1 if archive does not exist, | 
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| 302 | Returns -2 if archive has invalid format. | 
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| 303 | Returns 0 if have scanned successfully.  */ | 
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| 304 |  | 
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| 305 | long int | 
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| 306 | ar_scan (char *archive, long int (*function)(), long int arg) | 
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| 307 | { | 
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| 308 | #ifdef AIAMAG | 
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| 309 | FL_HDR fl_header; | 
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| 310 | #ifdef AIAMAGBIG | 
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| 311 | int big_archive = 0; | 
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| 312 | FL_HDR_BIG fl_header_big; | 
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| 313 | #endif | 
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| 314 | #else | 
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| 315 | int long_name = 0; | 
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| 316 | #endif | 
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| 317 | char *namemap = 0; | 
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| 318 | register int desc = open (archive, O_RDONLY, 0); | 
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| 319 | if (desc < 0) | 
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| 320 | return -1; | 
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| 321 | #ifdef SARMAG | 
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| 322 | { | 
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| 323 | char buf[SARMAG]; | 
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| 324 | register int nread = read (desc, buf, SARMAG); | 
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| 325 | if (nread != SARMAG || bcmp (buf, ARMAG, SARMAG)) | 
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| 326 | { | 
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| 327 | (void) close (desc); | 
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| 328 | return -2; | 
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| 329 | } | 
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| 330 | } | 
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| 331 | #else | 
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| 332 | #ifdef AIAMAG | 
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| 333 | { | 
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| 334 | register int nread = read (desc, (char *) &fl_header, FL_HSZ); | 
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| 335 |  | 
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| 336 | if (nread != FL_HSZ) | 
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| 337 | { | 
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| 338 | (void) close (desc); | 
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| 339 | return -2; | 
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| 340 | } | 
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| 341 | #ifdef AIAMAGBIG | 
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| 342 | /* If this is a "big" archive, then set the flag and | 
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| 343 | re-read the header into the "big" structure. */ | 
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| 344 | if (!bcmp (fl_header.fl_magic, AIAMAGBIG, SAIAMAG)) | 
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| 345 | { | 
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| 346 | big_archive = 1; | 
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| 347 |  | 
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| 348 | /* seek back to beginning of archive */ | 
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| 349 | if (lseek (desc, 0, 0) < 0) | 
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| 350 | { | 
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| 351 | (void) close (desc); | 
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| 352 | return -2; | 
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| 353 | } | 
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| 354 |  | 
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| 355 | /* re-read the header into the "big" structure */ | 
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| 356 | nread = read (desc, (char *) &fl_header_big, FL_HSZ_BIG); | 
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| 357 | if (nread != FL_HSZ_BIG) | 
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| 358 | { | 
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| 359 | (void) close (desc); | 
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| 360 | return -2; | 
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| 361 | } | 
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| 362 | } | 
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| 363 | else | 
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| 364 | #endif | 
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| 365 | /* Check to make sure this is a "normal" archive. */ | 
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| 366 | if (bcmp (fl_header.fl_magic, AIAMAG, SAIAMAG)) | 
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| 367 | { | 
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| 368 | (void) close (desc); | 
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| 369 | return -2; | 
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| 370 | } | 
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| 371 | } | 
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| 372 | #else | 
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| 373 | { | 
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| 374 | #ifndef M_XENIX | 
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| 375 | int buf; | 
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| 376 | #else | 
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| 377 | unsigned short int buf; | 
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| 378 | #endif | 
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| 379 | register int nread = read(desc, &buf, sizeof (buf)); | 
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| 380 | if (nread != sizeof (buf) || buf != ARMAG) | 
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| 381 | { | 
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| 382 | (void) close (desc); | 
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| 383 | return -2; | 
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| 384 | } | 
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| 385 | } | 
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| 386 | #endif | 
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| 387 | #endif | 
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| 388 |  | 
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| 389 | /* Now find the members one by one.  */ | 
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| 390 | { | 
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| 391 | #ifdef SARMAG | 
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| 392 | register long int member_offset = SARMAG; | 
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| 393 | #else | 
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| 394 | #ifdef AIAMAG | 
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| 395 | long int member_offset; | 
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| 396 | long int last_member_offset; | 
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| 397 |  | 
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| 398 | #ifdef AIAMAGBIG | 
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| 399 | if ( big_archive ) | 
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| 400 | { | 
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| 401 | sscanf (fl_header_big.fl_fstmoff, "%20ld", &member_offset); | 
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| 402 | sscanf (fl_header_big.fl_lstmoff, "%20ld", &last_member_offset); | 
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| 403 | } | 
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| 404 | else | 
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| 405 | #endif | 
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| 406 | { | 
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| 407 | sscanf (fl_header.fl_fstmoff, "%12ld", &member_offset); | 
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| 408 | sscanf (fl_header.fl_lstmoff, "%12ld", &last_member_offset); | 
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| 409 | } | 
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| 410 |  | 
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| 411 | if (member_offset == 0) | 
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| 412 | { | 
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| 413 | /* Empty archive.  */ | 
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| 414 | close (desc); | 
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| 415 | return 0; | 
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| 416 | } | 
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| 417 | #else | 
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| 418 | #ifndef M_XENIX | 
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| 419 | register long int member_offset = sizeof (int); | 
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| 420 | #else   /* Xenix.  */ | 
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| 421 | register long int member_offset = sizeof (unsigned short int); | 
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| 422 | #endif  /* Not Xenix.  */ | 
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| 423 | #endif | 
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| 424 | #endif | 
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| 425 |  | 
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| 426 | while (1) | 
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| 427 | { | 
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| 428 | register int nread; | 
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| 429 | struct ar_hdr member_header; | 
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| 430 | #ifdef AIAMAGBIG | 
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| 431 | struct ar_hdr_big member_header_big; | 
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| 432 | #endif | 
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| 433 | #ifdef AIAMAG | 
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| 434 | char name[256]; | 
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| 435 | int name_len; | 
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| 436 | long int dateval; | 
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| 437 | int uidval, gidval; | 
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| 438 | long int data_offset; | 
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| 439 | #else | 
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| 440 | char namebuf[sizeof member_header.ar_name + 1]; | 
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| 441 | char *name; | 
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| 442 | int is_namemap;         /* Nonzero if this entry maps long names.  */ | 
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| 443 | #endif | 
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| 444 | long int eltsize; | 
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| 445 | int eltmode; | 
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| 446 | long int fnval; | 
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| 447 |  | 
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| 448 | if (lseek (desc, member_offset, 0) < 0) | 
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| 449 | { | 
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| 450 | (void) close (desc); | 
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| 451 | return -2; | 
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| 452 | } | 
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| 453 |  | 
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| 454 | #ifdef AIAMAG | 
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| 455 | #define       AR_MEMHDR_SZ(x) (sizeof(x) - sizeof (x._ar_name)) | 
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| 456 |  | 
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| 457 | #ifdef AIAMAGBIG | 
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| 458 | if (big_archive) | 
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| 459 | { | 
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| 460 | nread = read (desc, (char *) &member_header_big, | 
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| 461 | AR_MEMHDR_SZ(member_header_big) ); | 
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| 462 |  | 
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| 463 | if (nread != AR_MEMHDR_SZ(member_header_big)) | 
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| 464 | { | 
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| 465 | (void) close (desc); | 
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| 466 | return -2; | 
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| 467 | } | 
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| 468 |  | 
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| 469 | sscanf (member_header_big.ar_namlen, "%4d", &name_len); | 
|---|
| 470 | nread = read (desc, name, name_len); | 
|---|
| 471 |  | 
|---|
| 472 | if (nread != name_len) | 
|---|
| 473 | { | 
|---|
| 474 | (void) close (desc); | 
|---|
| 475 | return -2; | 
|---|
| 476 | } | 
|---|
| 477 |  | 
|---|
| 478 | name[name_len] = 0; | 
|---|
| 479 |  | 
|---|
| 480 | sscanf (member_header_big.ar_date, "%12ld", &dateval); | 
|---|
| 481 | sscanf (member_header_big.ar_uid, "%12d", &uidval); | 
|---|
| 482 | sscanf (member_header_big.ar_gid, "%12d", &gidval); | 
|---|
| 483 | sscanf (member_header_big.ar_mode, "%12o", &eltmode); | 
|---|
| 484 | sscanf (member_header_big.ar_size, "%20ld", &eltsize); | 
|---|
| 485 |  | 
|---|
| 486 | data_offset = (member_offset + AR_MEMHDR_SZ(member_header_big) | 
|---|
| 487 | + name_len + 2); | 
|---|
| 488 | } | 
|---|
| 489 | else | 
|---|
| 490 | #endif | 
|---|
| 491 | { | 
|---|
| 492 | nread = read (desc, (char *) &member_header, | 
|---|
| 493 | AR_MEMHDR_SZ(member_header) ); | 
|---|
| 494 |  | 
|---|
| 495 | if (nread != AR_MEMHDR_SZ(member_header)) | 
|---|
| 496 | { | 
|---|
| 497 | (void) close (desc); | 
|---|
| 498 | return -2; | 
|---|
| 499 | } | 
|---|
| 500 |  | 
|---|
| 501 | sscanf (member_header.ar_namlen, "%4d", &name_len); | 
|---|
| 502 | nread = read (desc, name, name_len); | 
|---|
| 503 |  | 
|---|
| 504 | if (nread != name_len) | 
|---|
| 505 | { | 
|---|
| 506 | (void) close (desc); | 
|---|
| 507 | return -2; | 
|---|
| 508 | } | 
|---|
| 509 |  | 
|---|
| 510 | name[name_len] = 0; | 
|---|
| 511 |  | 
|---|
| 512 | sscanf (member_header.ar_date, "%12ld", &dateval); | 
|---|
| 513 | sscanf (member_header.ar_uid, "%12d", &uidval); | 
|---|
| 514 | sscanf (member_header.ar_gid, "%12d", &gidval); | 
|---|
| 515 | sscanf (member_header.ar_mode, "%12o", &eltmode); | 
|---|
| 516 | sscanf (member_header.ar_size, "%12ld", &eltsize); | 
|---|
| 517 |  | 
|---|
| 518 | data_offset = (member_offset + AR_MEMHDR_SZ(member_header) | 
|---|
| 519 | + name_len + 2); | 
|---|
| 520 | } | 
|---|
| 521 | data_offset += data_offset % 2; | 
|---|
| 522 |  | 
|---|
| 523 | fnval = | 
|---|
| 524 | (*function) (desc, name, 0, | 
|---|
| 525 | member_offset, data_offset, eltsize, | 
|---|
| 526 | dateval, uidval, gidval, | 
|---|
| 527 | eltmode, arg); | 
|---|
| 528 |  | 
|---|
| 529 | #else   /* Not AIAMAG.  */ | 
|---|
| 530 | nread = read (desc, (char *) &member_header, AR_HDR_SIZE); | 
|---|
| 531 | if (nread == 0) | 
|---|
| 532 | /* No data left means end of file; that is OK.  */ | 
|---|
| 533 | break; | 
|---|
| 534 |  | 
|---|
| 535 | if (nread != AR_HDR_SIZE | 
|---|
| 536 | #if defined(ARFMAG) || defined(ARFZMAG) | 
|---|
| 537 | || ( | 
|---|
| 538 | # ifdef ARFMAG | 
|---|
| 539 | bcmp (member_header.ar_fmag, ARFMAG, 2) | 
|---|
| 540 | # else | 
|---|
| 541 | 1 | 
|---|
| 542 | # endif | 
|---|
| 543 | && | 
|---|
| 544 | # ifdef ARFZMAG | 
|---|
| 545 | bcmp (member_header.ar_fmag, ARFZMAG, 2) | 
|---|
| 546 | # else | 
|---|
| 547 | 1 | 
|---|
| 548 | # endif | 
|---|
| 549 | ) | 
|---|
| 550 | #endif | 
|---|
| 551 | ) | 
|---|
| 552 | { | 
|---|
| 553 | (void) close (desc); | 
|---|
| 554 | return -2; | 
|---|
| 555 | } | 
|---|
| 556 |  | 
|---|
| 557 | name = namebuf; | 
|---|
| 558 | bcopy (member_header.ar_name, name, sizeof member_header.ar_name); | 
|---|
| 559 | { | 
|---|
| 560 | register char *p = name + sizeof member_header.ar_name; | 
|---|
| 561 | do | 
|---|
| 562 | *p = '\0'; | 
|---|
| 563 | while (p > name && *--p == ' '); | 
|---|
| 564 |  | 
|---|
| 565 | #ifndef AIAMAG | 
|---|
| 566 | /* If the member name is "//" or "ARFILENAMES/" this may be | 
|---|
| 567 | a list of file name mappings.  The maximum file name | 
|---|
| 568 | length supported by the standard archive format is 14 | 
|---|
| 569 | characters.  This member will actually always be the | 
|---|
| 570 | first or second entry in the archive, but we don't check | 
|---|
| 571 | that.  */ | 
|---|
| 572 | is_namemap = (!strcmp (name, "//") | 
|---|
| 573 | || !strcmp (name, "ARFILENAMES/")); | 
|---|
| 574 | #endif  /* Not AIAMAG. */ | 
|---|
| 575 | /* On some systems, there is a slash after each member name.  */ | 
|---|
| 576 | if (*p == '/') | 
|---|
| 577 | *p = '\0'; | 
|---|
| 578 |  | 
|---|
| 579 | #ifndef AIAMAG | 
|---|
| 580 | /* If the member name starts with a space or a slash, this | 
|---|
| 581 | is an index into the file name mappings (used by GNU ar). | 
|---|
| 582 | Otherwise if the member name looks like #1/NUMBER the | 
|---|
| 583 | real member name appears in the element data (used by | 
|---|
| 584 | 4.4BSD).  */ | 
|---|
| 585 | if (! is_namemap | 
|---|
| 586 | && (name[0] == ' ' || name[0] == '/') | 
|---|
| 587 | && namemap != 0) | 
|---|
| 588 | { | 
|---|
| 589 | name = namemap + atoi (name + 1); | 
|---|
| 590 | long_name = 1; | 
|---|
| 591 | } | 
|---|
| 592 | else if (name[0] == '#' | 
|---|
| 593 | && name[1] == '1' | 
|---|
| 594 | && name[2] == '/') | 
|---|
| 595 | { | 
|---|
| 596 | int namesize = atoi (name + 3); | 
|---|
| 597 |  | 
|---|
| 598 | name = (char *) alloca (namesize + 1); | 
|---|
| 599 | nread = read (desc, name, namesize); | 
|---|
| 600 | if (nread != namesize) | 
|---|
| 601 | { | 
|---|
| 602 | close (desc); | 
|---|
| 603 | return -2; | 
|---|
| 604 | } | 
|---|
| 605 | name[namesize] = '\0'; | 
|---|
| 606 |  | 
|---|
| 607 | long_name = 1; | 
|---|
| 608 | } | 
|---|
| 609 | #endif /* Not AIAMAG. */ | 
|---|
| 610 | } | 
|---|
| 611 |  | 
|---|
| 612 | #ifndef M_XENIX | 
|---|
| 613 | sscanf (member_header.ar_mode, "%o", &eltmode); | 
|---|
| 614 | eltsize = atol (member_header.ar_size); | 
|---|
| 615 | #else   /* Xenix.  */ | 
|---|
| 616 | eltmode = (unsigned short int) member_header.ar_mode; | 
|---|
| 617 | eltsize = member_header.ar_size; | 
|---|
| 618 | #endif  /* Not Xenix.  */ | 
|---|
| 619 |  | 
|---|
| 620 | fnval = | 
|---|
| 621 | (*function) (desc, name, ! long_name, member_offset, | 
|---|
| 622 | member_offset + AR_HDR_SIZE, eltsize, | 
|---|
| 623 | #ifndef M_XENIX | 
|---|
| 624 | atol (member_header.ar_date), | 
|---|
| 625 | atoi (member_header.ar_uid), | 
|---|
| 626 | atoi (member_header.ar_gid), | 
|---|
| 627 | #else   /* Xenix.  */ | 
|---|
| 628 | member_header.ar_date, | 
|---|
| 629 | member_header.ar_uid, | 
|---|
| 630 | member_header.ar_gid, | 
|---|
| 631 | #endif  /* Not Xenix.  */ | 
|---|
| 632 | eltmode, arg); | 
|---|
| 633 |  | 
|---|
| 634 | #endif  /* AIAMAG.  */ | 
|---|
| 635 |  | 
|---|
| 636 | if (fnval) | 
|---|
| 637 | { | 
|---|
| 638 | (void) close (desc); | 
|---|
| 639 | return fnval; | 
|---|
| 640 | } | 
|---|
| 641 |  | 
|---|
| 642 | #ifdef AIAMAG | 
|---|
| 643 | if (member_offset == last_member_offset) | 
|---|
| 644 | /* End of the chain.  */ | 
|---|
| 645 | break; | 
|---|
| 646 |  | 
|---|
| 647 | #ifdef AIAMAGBIG | 
|---|
| 648 | if (big_archive) | 
|---|
| 649 | sscanf (member_header_big.ar_nxtmem, "%20ld", &member_offset); | 
|---|
| 650 | else | 
|---|
| 651 | #endif | 
|---|
| 652 | sscanf (member_header.ar_nxtmem, "%12ld", &member_offset); | 
|---|
| 653 |  | 
|---|
| 654 | if (lseek (desc, member_offset, 0) != member_offset) | 
|---|
| 655 | { | 
|---|
| 656 | (void) close (desc); | 
|---|
| 657 | return -2; | 
|---|
| 658 | } | 
|---|
| 659 | #else | 
|---|
| 660 |  | 
|---|
| 661 | /* If this member maps archive names, we must read it in.  The | 
|---|
| 662 | name map will always precede any members whose names must | 
|---|
| 663 | be mapped.  */ | 
|---|
| 664 | if (is_namemap) | 
|---|
| 665 | { | 
|---|
| 666 | char *clear; | 
|---|
| 667 | char *limit; | 
|---|
| 668 |  | 
|---|
| 669 | namemap = (char *) alloca (eltsize); | 
|---|
| 670 | nread = read (desc, namemap, eltsize); | 
|---|
| 671 | if (nread != eltsize) | 
|---|
| 672 | { | 
|---|
| 673 | (void) close (desc); | 
|---|
| 674 | return -2; | 
|---|
| 675 | } | 
|---|
| 676 |  | 
|---|
| 677 | /* The names are separated by newlines.  Some formats have | 
|---|
| 678 | a trailing slash.  Null terminate the strings for | 
|---|
| 679 | convenience.  */ | 
|---|
| 680 | limit = namemap + eltsize; | 
|---|
| 681 | for (clear = namemap; clear < limit; clear++) | 
|---|
| 682 | { | 
|---|
| 683 | if (*clear == '\n') | 
|---|
| 684 | { | 
|---|
| 685 | *clear = '\0'; | 
|---|
| 686 | if (clear[-1] == '/') | 
|---|
| 687 | clear[-1] = '\0'; | 
|---|
| 688 | } | 
|---|
| 689 | } | 
|---|
| 690 |  | 
|---|
| 691 | is_namemap = 0; | 
|---|
| 692 | } | 
|---|
| 693 |  | 
|---|
| 694 | member_offset += AR_HDR_SIZE + eltsize; | 
|---|
| 695 | if (member_offset % 2 != 0) | 
|---|
| 696 | member_offset++; | 
|---|
| 697 | #endif | 
|---|
| 698 | } | 
|---|
| 699 | } | 
|---|
| 700 |  | 
|---|
| 701 | close (desc); | 
|---|
| 702 | return 0; | 
|---|
| 703 | } | 
|---|
| 704 | #endif /* !VMS */ | 
|---|
| 705 |  | 
|---|
| 706 |  | 
|---|
| 707 | /* Return nonzero iff NAME matches MEM. | 
|---|
| 708 | If TRUNCATED is nonzero, MEM may be truncated to | 
|---|
| 709 | sizeof (struct ar_hdr.ar_name) - 1.  */ | 
|---|
| 710 |  | 
|---|
| 711 | int | 
|---|
| 712 | ar_name_equal (char *name, char *mem, int truncated) | 
|---|
| 713 | { | 
|---|
| 714 | char *p; | 
|---|
| 715 |  | 
|---|
| 716 | p = strrchr (name, '/'); | 
|---|
| 717 | if (p != 0) | 
|---|
| 718 | name = p + 1; | 
|---|
| 719 |  | 
|---|
| 720 | #ifndef VMS | 
|---|
| 721 | if (truncated) | 
|---|
| 722 | { | 
|---|
| 723 | #ifdef AIAMAG | 
|---|
| 724 | /* TRUNCATED should never be set on this system.  */ | 
|---|
| 725 | abort (); | 
|---|
| 726 | #else | 
|---|
| 727 | struct ar_hdr hdr; | 
|---|
| 728 | #if !defined (__hpux) && !defined (cray) | 
|---|
| 729 | return strneq (name, mem, sizeof(hdr.ar_name) - 1); | 
|---|
| 730 | #else | 
|---|
| 731 | return strneq (name, mem, sizeof(hdr.ar_name) - 2); | 
|---|
| 732 | #endif /* !__hpux && !cray */ | 
|---|
| 733 | #endif /* !AIAMAG */ | 
|---|
| 734 | } | 
|---|
| 735 | #endif /* !VMS */ | 
|---|
| 736 |  | 
|---|
| 737 | return !strcmp (name, mem); | 
|---|
| 738 | } | 
|---|
| 739 |  | 
|---|
| 740 |  | 
|---|
| 741 | #ifndef VMS | 
|---|
| 742 | /* ARGSUSED */ | 
|---|
| 743 | static long int | 
|---|
| 744 | ar_member_pos (int desc, char *mem, int truncated, | 
|---|
| 745 | long int hdrpos, long int datapos, long int size, | 
|---|
| 746 | long int date, int uid, int gid, int mode, char *name) | 
|---|
| 747 | { | 
|---|
| 748 | if (!ar_name_equal (name, mem, truncated)) | 
|---|
| 749 | return 0; | 
|---|
| 750 | return hdrpos; | 
|---|
| 751 | } | 
|---|
| 752 |  | 
|---|
| 753 | /* Set date of member MEMNAME in archive ARNAME to current time. | 
|---|
| 754 | Returns 0 if successful, | 
|---|
| 755 | -1 if file ARNAME does not exist, | 
|---|
| 756 | -2 if not a valid archive, | 
|---|
| 757 | -3 if other random system call error (including file read-only), | 
|---|
| 758 | 1 if valid but member MEMNAME does not exist.  */ | 
|---|
| 759 |  | 
|---|
| 760 | int | 
|---|
| 761 | ar_member_touch (char *arname, char *memname) | 
|---|
| 762 | { | 
|---|
| 763 | register long int pos = ar_scan (arname, ar_member_pos, (long int) memname); | 
|---|
| 764 | register int fd; | 
|---|
| 765 | struct ar_hdr ar_hdr; | 
|---|
| 766 | register int i; | 
|---|
| 767 | struct stat statbuf; | 
|---|
| 768 |  | 
|---|
| 769 | if (pos < 0) | 
|---|
| 770 | return (int) pos; | 
|---|
| 771 | if (!pos) | 
|---|
| 772 | return 1; | 
|---|
| 773 |  | 
|---|
| 774 | fd = open (arname, O_RDWR, 0666); | 
|---|
| 775 | if (fd < 0) | 
|---|
| 776 | return -3; | 
|---|
| 777 | /* Read in this member's header */ | 
|---|
| 778 | if (lseek (fd, pos, 0) < 0) | 
|---|
| 779 | goto lose; | 
|---|
| 780 | if (AR_HDR_SIZE != read (fd, (char *) &ar_hdr, AR_HDR_SIZE)) | 
|---|
| 781 | goto lose; | 
|---|
| 782 | /* Write back the header, thus touching the archive file.  */ | 
|---|
| 783 | if (lseek (fd, pos, 0) < 0) | 
|---|
| 784 | goto lose; | 
|---|
| 785 | if (AR_HDR_SIZE != write (fd, (char *) &ar_hdr, AR_HDR_SIZE)) | 
|---|
| 786 | goto lose; | 
|---|
| 787 | /* The file's mtime is the time we we want.  */ | 
|---|
| 788 | EINTRLOOP (i, fstat (fd, &statbuf)); | 
|---|
| 789 | if (i < 0) | 
|---|
| 790 | goto lose; | 
|---|
| 791 | #if defined(ARFMAG) || defined(ARFZMAG) || defined(AIAMAG) || defined(WINDOWS32) | 
|---|
| 792 | /* Advance member's time to that time */ | 
|---|
| 793 | for (i = 0; i < sizeof ar_hdr.ar_date; i++) | 
|---|
| 794 | ar_hdr.ar_date[i] = ' '; | 
|---|
| 795 | sprintf (ar_hdr.ar_date, "%ld", (long int) statbuf.st_mtime); | 
|---|
| 796 | #ifdef AIAMAG | 
|---|
| 797 | ar_hdr.ar_date[strlen(ar_hdr.ar_date)] = ' '; | 
|---|
| 798 | #endif | 
|---|
| 799 | #else | 
|---|
| 800 | ar_hdr.ar_date = statbuf.st_mtime; | 
|---|
| 801 | #endif | 
|---|
| 802 | /* Write back this member's header */ | 
|---|
| 803 | if (lseek (fd, pos, 0) < 0) | 
|---|
| 804 | goto lose; | 
|---|
| 805 | if (AR_HDR_SIZE != write (fd, (char *) &ar_hdr, AR_HDR_SIZE)) | 
|---|
| 806 | goto lose; | 
|---|
| 807 | close (fd); | 
|---|
| 808 | return 0; | 
|---|
| 809 |  | 
|---|
| 810 | lose: | 
|---|
| 811 | i = errno; | 
|---|
| 812 | close (fd); | 
|---|
| 813 | errno = i; | 
|---|
| 814 | return -3; | 
|---|
| 815 | } | 
|---|
| 816 | #endif | 
|---|
| 817 |  | 
|---|
| 818 |  | 
|---|
| 819 | #ifdef TEST | 
|---|
| 820 |  | 
|---|
| 821 | long int | 
|---|
| 822 | describe_member (int desc, char *name, int truncated, | 
|---|
| 823 | long int hdrpos, long int datapos, long int size, | 
|---|
| 824 | long int date, int uid, int gid, int mode) | 
|---|
| 825 | { | 
|---|
| 826 | extern char *ctime (); | 
|---|
| 827 |  | 
|---|
| 828 | printf (_("Member `%s'%s: %ld bytes at %ld (%ld).\n"), | 
|---|
| 829 | name, truncated ? _(" (name might be truncated)") : "", | 
|---|
| 830 | size, hdrpos, datapos); | 
|---|
| 831 | printf (_("  Date %s"), ctime (&date)); | 
|---|
| 832 | printf (_("  uid = %d, gid = %d, mode = 0%o.\n"), uid, gid, mode); | 
|---|
| 833 |  | 
|---|
| 834 | return 0; | 
|---|
| 835 | } | 
|---|
| 836 |  | 
|---|
| 837 | int | 
|---|
| 838 | main (int argc, char **argv) | 
|---|
| 839 | { | 
|---|
| 840 | ar_scan (argv[1], describe_member); | 
|---|
| 841 | return 0; | 
|---|
| 842 | } | 
|---|
| 843 |  | 
|---|
| 844 | #endif  /* TEST.  */ | 
|---|
| 845 | #endif  /* NO_ARCHIVES.  */ | 
|---|