312 lines
9.2 KiB
C
312 lines
9.2 KiB
C
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/* File: curl_crtl_init.c
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*
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* This file makes sure that the DECC Unix settings are correct for
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* the mode the the program is run in.
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*
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* The CRTL has not been initialized at the time that these routines
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* are called, so many routines can not be called.
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*
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* This is a module that provides a LIB$INITIALIZE routine that
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* will turn on some CRTL features that are not enabled by default.
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*
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* The CRTL features can also be turned on via logical names, but that
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* impacts all programs and some aren't ready, willing, or able to handle
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* those settings.
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*
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* On VMS versions that are too old to use the feature setting API, this
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* module falls back to using logical names.
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*
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* Copyright 2013, John Malmberg
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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/* Unix headers */
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#include <stdio.h>
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#include <string.h>
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/* VMS specific headers */
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#include <descrip.h>
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#include <lnmdef.h>
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#include <stsdef.h>
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#pragma member_alignment save
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#pragma nomember_alignment longword
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#pragma message save
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#pragma message disable misalgndmem
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struct itmlst_3 {
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unsigned short int buflen;
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unsigned short int itmcode;
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void *bufadr;
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unsigned short int *retlen;
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};
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#pragma message restore
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#pragma member_alignment restore
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#ifdef __VAX
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#define ENABLE "ENABLE"
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#define DISABLE "DISABLE"
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#else
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#define ENABLE TRUE
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#define DISABLE 0
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int decc$feature_get_index (const char *name);
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int decc$feature_set_value (int index, int mode, int value);
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#endif
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int SYS$TRNLNM(
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const unsigned long * attr,
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const struct dsc$descriptor_s * table_dsc,
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struct dsc$descriptor_s * name_dsc,
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const unsigned char * acmode,
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const struct itmlst_3 * item_list);
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int SYS$CRELNM(
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const unsigned long * attr,
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const struct dsc$descriptor_s * table_dsc,
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const struct dsc$descriptor_s * name_dsc,
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const unsigned char * acmode,
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const struct itmlst_3 * item_list);
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/* Take all the fun out of simply looking up a logical name */
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static int sys_trnlnm
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(const char * logname,
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char * value,
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int value_len)
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{
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const $DESCRIPTOR(table_dsc, "LNM$FILE_DEV");
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const unsigned long attr = LNM$M_CASE_BLIND;
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struct dsc$descriptor_s name_dsc;
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int status;
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unsigned short result;
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struct itmlst_3 itlst[2];
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itlst[0].buflen = value_len;
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itlst[0].itmcode = LNM$_STRING;
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itlst[0].bufadr = value;
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itlst[0].retlen = &result;
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itlst[1].buflen = 0;
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itlst[1].itmcode = 0;
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name_dsc.dsc$w_length = strlen(logname);
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name_dsc.dsc$a_pointer = (char *)logname;
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name_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
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name_dsc.dsc$b_class = DSC$K_CLASS_S;
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status = SYS$TRNLNM(&attr, &table_dsc, &name_dsc, 0, itlst);
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if ($VMS_STATUS_SUCCESS(status)) {
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/* Null terminate and return the string */
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/*--------------------------------------*/
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value[result] = '\0';
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}
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return status;
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}
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/* How to simply create a logical name */
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static int sys_crelnm
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(const char * logname,
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const char * value)
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{
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int ret_val;
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const char * proc_table = "LNM$PROCESS_TABLE";
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struct dsc$descriptor_s proc_table_dsc;
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struct dsc$descriptor_s logname_dsc;
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struct itmlst_3 item_list[2];
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proc_table_dsc.dsc$a_pointer = (char *) proc_table;
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proc_table_dsc.dsc$w_length = strlen(proc_table);
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proc_table_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
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proc_table_dsc.dsc$b_class = DSC$K_CLASS_S;
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logname_dsc.dsc$a_pointer = (char *) logname;
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logname_dsc.dsc$w_length = strlen(logname);
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logname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
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logname_dsc.dsc$b_class = DSC$K_CLASS_S;
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item_list[0].buflen = strlen(value);
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item_list[0].itmcode = LNM$_STRING;
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item_list[0].bufadr = (char *)value;
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item_list[0].retlen = NULL;
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item_list[1].buflen = 0;
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item_list[1].itmcode = 0;
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ret_val = SYS$CRELNM(NULL, &proc_table_dsc, &logname_dsc, NULL, item_list);
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return ret_val;
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}
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/* Start of DECC RTL Feature handling */
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/*
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** Sets default value for a feature
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*/
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#ifdef __VAX
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static void set_feature_default(const char *name, const char *value)
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{
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sys_crelnm(name, value);
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}
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#else
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static void set_feature_default(const char *name, int value)
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{
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int index;
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index = decc$feature_get_index(name);
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if (index > 0)
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decc$feature_set_value (index, 0, value);
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}
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#endif
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static void set_features(void)
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{
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int status;
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char unix_shell_name[255];
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int use_unix_settings = 1;
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status = sys_trnlnm("GNV$UNIX_SHELL",
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unix_shell_name, sizeof unix_shell_name -1);
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if (!$VMS_STATUS_SUCCESS(status)) {
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unix_shell_name[0] = 0;
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use_unix_settings = 0;
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}
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/* ACCESS should check ACLs or it is lying. */
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set_feature_default("DECC$ACL_ACCESS_CHECK", ENABLE);
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/* We always want the new parse style */
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set_feature_default ("DECC$ARGV_PARSE_STYLE" , ENABLE);
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/* Unless we are in POSIX compliant mode, we want the old POSIX root
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* enabled.
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*/
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set_feature_default("DECC$DISABLE_POSIX_ROOT", DISABLE);
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/* EFS charset, means UTF-8 support */
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/* VTF-7 support is controlled by a feature setting called UTF8 */
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set_feature_default ("DECC$EFS_CHARSET", ENABLE);
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set_feature_default ("DECC$EFS_CASE_PRESERVE", ENABLE);
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/* Support timestamps when available */
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set_feature_default ("DECC$EFS_FILE_TIMESTAMPS", ENABLE);
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/* Cache environment variables - performance improvements */
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set_feature_default ("DECC$ENABLE_GETENV_CACHE", ENABLE);
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/* Start out with new file attribute inheritance */
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#ifdef __VAX
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set_feature_default ("DECC$EXEC_FILEATTR_INHERITANCE", "2");
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#else
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set_feature_default ("DECC$EXEC_FILEATTR_INHERITANCE", 2);
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#endif
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/* Don't display trailing dot after files without type */
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set_feature_default ("DECC$READDIR_DROPDOTNOTYPE", ENABLE);
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/* For standard output channels buffer output until terminator */
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/* Gets rid of output logs with single character lines in them. */
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set_feature_default ("DECC$STDIO_CTX_EOL", ENABLE);
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/* Fix mv aa.bb aa */
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set_feature_default ("DECC$RENAME_NO_INHERIT", ENABLE);
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if (use_unix_settings) {
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/* POSIX requires that open files be able to be removed */
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set_feature_default ("DECC$ALLOW_REMOVE_OPEN_FILES", ENABLE);
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/* Default to outputting Unix filenames in VMS routines */
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set_feature_default ("DECC$FILENAME_UNIX_ONLY", ENABLE);
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/* FILENAME_UNIX_ONLY Implicitly sets */
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/* decc$disable_to_vms_logname_translation */
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set_feature_default ("DECC$FILE_PERMISSION_UNIX", ENABLE);
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set_feature_default ("DECC$FILE_SHARING", ENABLE);
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set_feature_default ("DECC$FILE_OWNER_UNIX", ENABLE);
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set_feature_default ("DECC$POSIX_SEEK_STREAM_FILE", ENABLE);
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} else {
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set_feature_default("DECC$FILENAME_UNIX_REPORT", ENABLE);
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}
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/* When reporting Unix filenames, glob the same way */
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set_feature_default ("DECC$GLOB_UNIX_STYLE", ENABLE);
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/* The VMS version numbers on Unix filenames is incompatible with most */
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/* ported packages. */
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set_feature_default("DECC$FILENAME_UNIX_NO_VERSION", ENABLE);
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/* The VMS version numbers on Unix filenames is incompatible with most */
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/* ported packages. */
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set_feature_default("DECC$UNIX_PATH_BEFORE_LOGNAME", ENABLE);
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/* Set strtol to proper behavior */
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set_feature_default("DECC$STRTOL_ERANGE", ENABLE);
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/* Commented here to prevent future bugs: A program or user should */
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/* never ever enable DECC$POSIX_STYLE_UID. */
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/* It will probably break all code that accesses UIDs */
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/* do_not_set_default ("DECC$POSIX_STYLE_UID", TRUE); */
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}
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/* Some boilerplate to force this to be a proper LIB$INITIALIZE section */
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#pragma nostandard
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#pragma extern_model save
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#ifdef __VAX
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#pragma extern_model strict_refdef "LIB$INITIALIZE" nowrt, long, nopic
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#else
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#pragma extern_model strict_refdef "LIB$INITIALIZE" nowrt, long
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# if __INITIAL_POINTER_SIZE
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# pragma __pointer_size __save
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# pragma __pointer_size 32
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# else
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# pragma __required_pointer_size __save
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# pragma __required_pointer_size 32
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# endif
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#endif
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/* Set our contribution to the LIB$INITIALIZE array */
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void (* const iniarray[])(void) = {set_features, } ;
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#ifndef __VAX
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# if __INITIAL_POINTER_SIZE
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# pragma __pointer_size __restore
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# else
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# pragma __required_pointer_size __restore
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# endif
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#endif
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/*
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** Force a reference to LIB$INITIALIZE to ensure it
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** exists in the image.
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*/
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int LIB$INITIALIZE(void);
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#ifdef __DECC
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#pragma extern_model strict_refdef
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#endif
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int lib_init_ref = (int) LIB$INITIALIZE;
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#ifdef __DECC
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#pragma extern_model restore
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#pragma standard
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#endif
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