172 lines
4.8 KiB
C
172 lines
4.8 KiB
C
#if defined( __VMS) && !defined( OPENSSL_NO_DECC_INIT) && \
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defined( __DECC) && !defined( __VAX) && (__CRTL_VER >= 70301000)
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# define USE_DECC_INIT 1
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#endif
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#ifdef USE_DECC_INIT
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/*-
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* 2010-04-26 SMS.
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*
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*----------------------------------------------------------------------
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*
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* decc_init()
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*
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* On non-VAX systems, uses LIB$INITIALIZE to set a collection of C
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* RTL features without using the DECC$* logical name method.
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*
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*----------------------------------------------------------------------
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*/
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# include <stdio.h>
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# include <stdlib.h>
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# include <unixlib.h>
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/* Global storage. */
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/* Flag to sense if decc_init() was called. */
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int decc_init_done = -1;
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/* Structure to hold a DECC$* feature name and its desired value. */
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typedef struct {
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char *name;
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int value;
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} decc_feat_t;
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/*
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* Array of DECC$* feature names and their desired values. Note:
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* DECC$ARGV_PARSE_STYLE is the urgent one.
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*/
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decc_feat_t decc_feat_array[] = {
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/* Preserve command-line case with SET PROCESS/PARSE_STYLE=EXTENDED */
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{"DECC$ARGV_PARSE_STYLE", 1},
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/* Preserve case for file names on ODS5 disks. */
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{"DECC$EFS_CASE_PRESERVE", 1},
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/*
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* Enable multiple dots (and most characters) in ODS5 file names, while
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* preserving VMS-ness of ";version".
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*/
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{"DECC$EFS_CHARSET", 1},
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/* List terminator. */
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{(char *)NULL, 0}
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};
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/* LIB$INITIALIZE initialization function. */
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static void decc_init(void)
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{
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char *openssl_debug_decc_init;
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int verbose = 0;
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int feat_index;
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int feat_value;
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int feat_value_max;
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int feat_value_min;
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int i;
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int sts;
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/* Get debug option. */
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openssl_debug_decc_init = getenv("OPENSSL_DEBUG_DECC_INIT");
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if (openssl_debug_decc_init != NULL) {
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verbose = strtol(openssl_debug_decc_init, NULL, 10);
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if (verbose <= 0) {
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verbose = 1;
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}
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}
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/* Set the global flag to indicate that LIB$INITIALIZE worked. */
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decc_init_done = 1;
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/* Loop through all items in the decc_feat_array[]. */
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for (i = 0; decc_feat_array[i].name != NULL; i++) {
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/* Get the feature index. */
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feat_index = decc$feature_get_index(decc_feat_array[i].name);
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if (feat_index >= 0) {
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/* Valid item. Collect its properties. */
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feat_value = decc$feature_get_value(feat_index, 1);
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feat_value_min = decc$feature_get_value(feat_index, 2);
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feat_value_max = decc$feature_get_value(feat_index, 3);
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/* Check the validity of our desired value. */
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if ((decc_feat_array[i].value >= feat_value_min) &&
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(decc_feat_array[i].value <= feat_value_max)) {
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/* Valid value. Set it if necessary. */
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if (feat_value != decc_feat_array[i].value) {
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sts = decc$feature_set_value(feat_index,
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1, decc_feat_array[i].value);
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if (verbose > 1) {
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fprintf(stderr, " %s = %d, sts = %d.\n",
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decc_feat_array[i].name,
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decc_feat_array[i].value, sts);
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}
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}
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} else {
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/* Invalid DECC feature value. */
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fprintf(stderr,
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" INVALID DECC$FEATURE VALUE, %d: %d <= %s <= %d.\n",
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feat_value,
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feat_value_min, decc_feat_array[i].name,
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feat_value_max);
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}
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} else {
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/* Invalid DECC feature name. */
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fprintf(stderr,
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" UNKNOWN DECC$FEATURE: %s.\n", decc_feat_array[i].name);
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}
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}
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if (verbose > 0) {
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fprintf(stderr, " DECC_INIT complete.\n");
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}
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}
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/* Get "decc_init()" into a valid, loaded LIB$INITIALIZE PSECT. */
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# pragma nostandard
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/*
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* Establish the LIB$INITIALIZE PSECTs, with proper alignment and other
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* attributes. Note that "nopic" is significant only on VAX.
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*/
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# pragma extern_model save
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# if __INITIAL_POINTER_SIZE == 64
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# define PSECT_ALIGN 3
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# else
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# define PSECT_ALIGN 2
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# endif
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# pragma extern_model strict_refdef "LIB$INITIALIZ" PSECT_ALIGN, nopic, nowrt
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const int spare[8] = { 0 };
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# pragma extern_model strict_refdef "LIB$INITIALIZE" PSECT_ALIGN, nopic, nowrt
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void (*const x_decc_init) () = decc_init;
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# pragma extern_model restore
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/* Fake reference to ensure loading the LIB$INITIALIZE PSECT. */
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# pragma extern_model save
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int LIB$INITIALIZE(void);
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# pragma extern_model strict_refdef
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int dmy_lib$initialize = (int)LIB$INITIALIZE;
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# pragma extern_model restore
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# pragma standard
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#else /* def USE_DECC_INIT */
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/* Dummy code to avoid a %CC-W-EMPTYFILE complaint. */
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int decc_init_dummy(void);
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#endif /* def USE_DECC_INIT */
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