| 1 | /* vmsutil.c -- Utilities for VMS. |
| 2 | Copyright 2009 Free Software Foundation, Inc. |
| 3 | |
| 4 | Written by Douglas B Rupp <rupp@gnat.com> |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 19 | |
| 20 | #include "ansidecl.h" |
| 21 | #include "vmsutil.h" |
| 22 | |
| 23 | #ifdef VMS |
| 24 | #define __NEW_STARLET 1 |
| 25 | #include <vms/starlet.h> |
| 26 | #include <vms/rms.h> |
| 27 | #include <vms/atrdef.h> |
| 28 | #include <vms/fibdef.h> |
| 29 | #include <vms/stsdef.h> |
| 30 | #include <vms/iodef.h> |
| 31 | #include <vms/fatdef.h> |
| 32 | #include <errno.h> |
| 33 | #include <vms/descrip.h> |
| 34 | #include <string.h> |
| 35 | #include <unixlib.h> |
| 36 | |
| 37 | #define MAXPATH 256 |
| 38 | |
| 39 | /* Descrip.h doesn't have everything... */ |
| 40 | typedef struct fibdef * __fibdef_ptr32 __attribute__ (( mode (SI) )); |
| 41 | |
| 42 | struct dsc$descriptor_fib |
| 43 | { |
| 44 | unsigned int fib$l_len; |
| 45 | __fibdef_ptr32 fib$l_addr; |
| 46 | }; |
| 47 | |
| 48 | /* I/O Status Block. */ |
| 49 | struct IOSB |
| 50 | { |
| 51 | unsigned short status, count; |
| 52 | unsigned int devdep; |
| 53 | }; |
| 54 | |
| 55 | static char *tryfile; |
| 56 | |
| 57 | /* Variable length string. */ |
| 58 | struct vstring |
| 59 | { |
| 60 | short length; |
| 61 | char string[NAM$C_MAXRSS+1]; |
| 62 | }; |
| 63 | |
| 64 | static char filename_buff [MAXPATH]; |
| 65 | static char vms_filespec [MAXPATH]; |
| 66 | |
| 67 | /* Callback function for filespec style conversion. */ |
| 68 | |
| 69 | static int |
| 70 | translate_unix (char *name, int type ATTRIBUTE_UNUSED) |
| 71 | { |
| 72 | strncpy (filename_buff, name, MAXPATH); |
| 73 | filename_buff [MAXPATH - 1] = (char) 0; |
| 74 | return 0; |
| 75 | } |
| 76 | |
| 77 | /* Wrapper for DECC function that converts a Unix filespec |
| 78 | to VMS style filespec. */ |
| 79 | |
| 80 | static char * |
| 81 | to_vms_file_spec (char *filespec) |
| 82 | { |
| 83 | strncpy (vms_filespec, "", MAXPATH); |
| 84 | decc$to_vms (filespec, translate_unix, 1, 1); |
| 85 | strncpy (vms_filespec, filename_buff, MAXPATH); |
| 86 | |
| 87 | vms_filespec [MAXPATH - 1] = (char) 0; |
| 88 | |
| 89 | return vms_filespec; |
| 90 | } |
| 91 | |
| 92 | #else |
| 93 | #include <sys/stat.h> |
| 94 | #include <time.h> |
| 95 | #define VMS_EPOCH_OFFSET 35067168000000000LL |
| 96 | #define VMS_GRANULARITY_FACTOR 10000000 |
| 97 | #endif |
| 98 | |
| 99 | /* Return VMS file date, size, format, version given a name. */ |
| 100 | |
| 101 | int |
| 102 | vms_file_stats_name (const char *filename, |
| 103 | long long *cdt, |
| 104 | long *siz, |
| 105 | char *rfo, |
| 106 | int *ver) |
| 107 | { |
| 108 | #ifdef VMS |
| 109 | struct FAB fab; |
| 110 | struct NAM nam; |
| 111 | |
| 112 | unsigned long long create; |
| 113 | FAT recattr; |
| 114 | char ascnamebuff [256]; |
| 115 | |
| 116 | ATRDEF atrlst[] |
| 117 | = { |
| 118 | { ATR$S_CREDATE, ATR$C_CREDATE, &create }, |
| 119 | { ATR$S_RECATTR, ATR$C_RECATTR, &recattr }, |
| 120 | { ATR$S_ASCNAME, ATR$C_ASCNAME, &ascnamebuff }, |
| 121 | { 0, 0, 0} |
| 122 | }; |
| 123 | |
| 124 | FIBDEF fib; |
| 125 | struct dsc$descriptor_fib fibdsc = {sizeof (fib), (void *) &fib}; |
| 126 | |
| 127 | struct IOSB iosb; |
| 128 | |
| 129 | long status; |
| 130 | unsigned short chan; |
| 131 | |
| 132 | struct vstring file; |
| 133 | struct dsc$descriptor_s filedsc |
| 134 | = {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) file.string}; |
| 135 | struct vstring device; |
| 136 | struct dsc$descriptor_s devicedsc |
| 137 | = {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) device.string}; |
| 138 | struct vstring result; |
| 139 | struct dsc$descriptor_s resultdsc |
| 140 | = {NAM$C_MAXRSS, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, (void *) result.string}; |
| 141 | |
| 142 | if (strcmp (filename, "<internal>") == 0 |
| 143 | || strcmp (filename, "<built-in>") == 0) |
| 144 | { |
| 145 | if (cdt) |
| 146 | *cdt = 0; |
| 147 | |
| 148 | if (siz) |
| 149 | *siz = 0; |
| 150 | |
| 151 | if (rfo) |
| 152 | *rfo = 0; |
| 153 | |
| 154 | if (ver) |
| 155 | *ver = 0; |
| 156 | |
| 157 | return 0; |
| 158 | } |
| 159 | |
| 160 | tryfile = to_vms_file_spec ((char *) filename); |
| 161 | |
| 162 | /* Allocate and initialize a FAB and NAM structures. */ |
| 163 | fab = cc$rms_fab; |
| 164 | nam = cc$rms_nam; |
| 165 | |
| 166 | nam.nam$l_esa = file.string; |
| 167 | nam.nam$b_ess = NAM$C_MAXRSS; |
| 168 | nam.nam$l_rsa = result.string; |
| 169 | nam.nam$b_rss = NAM$C_MAXRSS; |
| 170 | fab.fab$l_fna = tryfile; |
| 171 | fab.fab$b_fns = strlen (tryfile); |
| 172 | fab.fab$l_nam = &nam; |
| 173 | |
| 174 | /* Validate filespec syntax and device existence. */ |
| 175 | status = SYS$PARSE (&fab, 0, 0); |
| 176 | if ((status & 1) != 1) |
| 177 | return 1; |
| 178 | |
| 179 | file.string[nam.nam$b_esl] = 0; |
| 180 | |
| 181 | /* Find matching filespec. */ |
| 182 | status = SYS$SEARCH (&fab, 0, 0); |
| 183 | if ((status & 1) != 1) |
| 184 | return 1; |
| 185 | |
| 186 | file.string[nam.nam$b_esl] = 0; |
| 187 | result.string[result.length=nam.nam$b_rsl] = 0; |
| 188 | |
| 189 | /* Get the device name and assign an IO channel. */ |
| 190 | strncpy (device.string, nam.nam$l_dev, nam.nam$b_dev); |
| 191 | devicedsc.dsc$w_length = nam.nam$b_dev; |
| 192 | chan = 0; |
| 193 | status = SYS$ASSIGN (&devicedsc, &chan, 0, 0, 0); |
| 194 | if ((status & 1) != 1) |
| 195 | return 1; |
| 196 | |
| 197 | /* Initialize the FIB and fill in the directory id field. */ |
| 198 | memset (&fib, 0, sizeof (fib)); |
| 199 | fib.fib$w_did[0] = nam.nam$w_did[0]; |
| 200 | fib.fib$w_did[1] = nam.nam$w_did[1]; |
| 201 | fib.fib$w_did[2] = nam.nam$w_did[2]; |
| 202 | fib.fib$l_acctl = 0; |
| 203 | fib.fib$l_wcc = 0; |
| 204 | strcpy (file.string, (strrchr (result.string, ']') + 1)); |
| 205 | filedsc.dsc$w_length = strlen (file.string); |
| 206 | result.string[result.length = 0] = 0; |
| 207 | |
| 208 | /* Open and close the file to fill in the attributes. */ |
| 209 | status |
| 210 | = SYS$QIOW (0, chan, IO$_ACCESS|IO$M_ACCESS, &iosb, 0, 0, |
| 211 | &fibdsc, &filedsc, &result.length, &resultdsc, &atrlst, 0); |
| 212 | if ((status & 1) != 1) |
| 213 | return 1; |
| 214 | if ((iosb.status & 1) != 1) |
| 215 | return 1; |
| 216 | |
| 217 | result.string[result.length] = 0; |
| 218 | status = SYS$QIOW (0, chan, IO$_DEACCESS, &iosb, 0, 0, &fibdsc, 0, 0, 0, |
| 219 | &atrlst, 0); |
| 220 | if ((status & 1) != 1) |
| 221 | return 1; |
| 222 | if ((iosb.status & 1) != 1) |
| 223 | return 1; |
| 224 | |
| 225 | /* Deassign the channel and exit. */ |
| 226 | status = SYS$DASSGN (chan); |
| 227 | if ((status & 1) != 1) |
| 228 | return 1; |
| 229 | |
| 230 | if (cdt) *cdt = create; |
| 231 | if (siz) *siz = (512 * 65536 * recattr.fat$w_efblkh) + |
| 232 | (512 * (recattr.fat$w_efblkl - 1)) + |
| 233 | recattr.fat$w_ffbyte; |
| 234 | if (rfo) *rfo = recattr.fat$v_rtype; |
| 235 | if (ver) *ver = strtol (strrchr (ascnamebuff, ';')+1, 0, 10); |
| 236 | |
| 237 | return 0; |
| 238 | #else |
| 239 | struct stat buff; |
| 240 | |
| 241 | if ((stat (filename, &buff)) != 0) |
| 242 | return 1; |
| 243 | |
| 244 | if (cdt) |
| 245 | { |
| 246 | *cdt = (long long) (buff.st_mtime * VMS_GRANULARITY_FACTOR) |
| 247 | + VMS_EPOCH_OFFSET; |
| 248 | } |
| 249 | |
| 250 | if (siz) |
| 251 | *siz = buff.st_size; |
| 252 | |
| 253 | if (rfo) |
| 254 | *rfo = 2; /* Stream LF format. */ |
| 255 | |
| 256 | if (ver) |
| 257 | *ver = 0; |
| 258 | |
| 259 | return 0; |
| 260 | #endif |
| 261 | } |
| 262 | |