add cyrussasl, iconv, openssl to libs for optional usage (if system does not provide)

libs/openssl/crypto/LPdir_vms.c

@@ -0,0 +1,195 @@
+/*
+ * Copyright (c) 2004, Richard Levitte <richard@levitte.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <descrip.h>
+#include <namdef.h>
+#include <rmsdef.h>
+#include <libfildef.h>
+#include <lib$routines.h>
+#include <strdef.h>
+#include <str$routines.h>
+#include <stsdef.h>
+#ifndef LPDIR_H
+# include "LPdir.h"
+#endif
+#include "vms_rms.h"
+
+/* Some compiler options hide EVMSERR. */
+#ifndef EVMSERR
+# define EVMSERR        65535   /* error for non-translatable VMS errors */
+#endif
+
+struct LP_dir_context_st {
+    unsigned long VMS_context;
+    char filespec[NAMX_MAXRSS + 1];
+    char result[NAMX_MAXRSS + 1];
+    struct dsc$descriptor_d filespec_dsc;
+    struct dsc$descriptor_d result_dsc;
+};
+
+const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)
+{
+    int status;
+    char *p, *r;
+    size_t l;
+    unsigned long flags = 0;
+
+/* Arrange 32-bit pointer to (copied) string storage, if needed. */
+#if __INITIAL_POINTER_SIZE == 64
+# pragma pointer_size save
+# pragma pointer_size 32
+    char *ctx_filespec_32p;
+# pragma pointer_size restore
+    char ctx_filespec_32[NAMX_MAXRSS + 1];
+#endif                          /* __INITIAL_POINTER_SIZE == 64 */
+
+#ifdef NAML$C_MAXRSS
+    flags |= LIB$M_FIL_LONG_NAMES;
+#endif
+
+    if (ctx == NULL || directory == NULL) {
+        errno = EINVAL;
+        return 0;
+    }
+
+    errno = 0;
+    if (*ctx == NULL) {
+        size_t filespeclen = strlen(directory);
+        char *filespec = NULL;
+
+        if (filespeclen == 0) {
+            errno = ENOENT;
+            return 0;
+        }
+
+        /* MUST be a VMS directory specification!  Let's estimate if it is. */
+        if (directory[filespeclen - 1] != ']'
+            && directory[filespeclen - 1] != '>'
+            && directory[filespeclen - 1] != ':') {
+            errno = EINVAL;
+            return 0;
+        }
+
+        filespeclen += 4;       /* "*.*;" */
+
+        if (filespeclen > NAMX_MAXRSS) {
+            errno = ENAMETOOLONG;
+            return 0;
+        }
+
+        *ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX));
+        if (*ctx == NULL) {
+            errno = ENOMEM;
+            return 0;
+        }
+        memset(*ctx, '\0', sizeof(LP_DIR_CTX));
+
+        strcpy((*ctx)->filespec, directory);
+        strcat((*ctx)->filespec, "*.*;");
+
+/* Arrange 32-bit pointer to (copied) string storage, if needed. */
+#if __INITIAL_POINTER_SIZE == 64
+# define CTX_FILESPEC ctx_filespec_32p
+        /* Copy the file name to storage with a 32-bit pointer. */
+        ctx_filespec_32p = ctx_filespec_32;
+        strcpy(ctx_filespec_32p, (*ctx)->filespec);
+#else                           /* __INITIAL_POINTER_SIZE == 64 */
+# define CTX_FILESPEC (*ctx)->filespec
+#endif                          /* __INITIAL_POINTER_SIZE == 64 [else] */
+
+        (*ctx)->filespec_dsc.dsc$w_length = filespeclen;
+        (*ctx)->filespec_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
+        (*ctx)->filespec_dsc.dsc$b_class = DSC$K_CLASS_S;
+        (*ctx)->filespec_dsc.dsc$a_pointer = CTX_FILESPEC;
+    }
+
+    (*ctx)->result_dsc.dsc$w_length = 0;
+    (*ctx)->result_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
+    (*ctx)->result_dsc.dsc$b_class = DSC$K_CLASS_D;
+    (*ctx)->result_dsc.dsc$a_pointer = 0;
+
+    status = lib$find_file(&(*ctx)->filespec_dsc, &(*ctx)->result_dsc,
+                           &(*ctx)->VMS_context, 0, 0, 0, &flags);
+
+    if (status == RMS$_NMF) {
+        errno = 0;
+        vaxc$errno = status;
+        return NULL;
+    }
+
+    if (!$VMS_STATUS_SUCCESS(status)) {
+        errno = EVMSERR;
+        vaxc$errno = status;
+        return NULL;
+    }
+
+    /*
+     * Quick, cheap and dirty way to discard any device and directory, since
+     * we only want file names
+     */
+    l = (*ctx)->result_dsc.dsc$w_length;
+    p = (*ctx)->result_dsc.dsc$a_pointer;
+    r = p;
+    for (; *p; p++) {
+        if (*p == '^' && p[1] != '\0') { /* Take care of ODS-5 escapes */
+            p++;
+        } else if (*p == ':' || *p == '>' || *p == ']') {
+            l -= p + 1 - r;
+            r = p + 1;
+        } else if (*p == ';') {
+            l = p - r;
+            break;
+        }
+    }
+
+    strncpy((*ctx)->result, r, l);
+    (*ctx)->result[l] = '\0';
+    str$free1_dx(&(*ctx)->result_dsc);
+
+    return (*ctx)->result;
+}
+
+int LP_find_file_end(LP_DIR_CTX **ctx)
+{
+    if (ctx != NULL && *ctx != NULL) {
+        int status = lib$find_file_end(&(*ctx)->VMS_context);
+
+        free(*ctx);
+
+        if (!$VMS_STATUS_SUCCESS(status)) {
+            errno = EVMSERR;
+            vaxc$errno = status;
+            return 0;
+        }
+        return 1;
+    }
+    errno = EINVAL;
+    return 0;
+}