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curl/packages/vms/curl_crtl_init.c
Steve Holme 1abe65d928 code/docs: Use Unix rather than UNIX to avoid use of the trademark
Use Unix when generically writing about Unix based systems as UNIX is
the trademark and should only be used in a particular product's name.
2014-12-26 21:42:44 +00:00

312 lines
9.2 KiB
C

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