third-party libs

third-party/openssl-1.0.0d/crypto/LPdir_vms.c

@@ -0,0 +1,199 @@
+/* $LP: LPlib/source/LPdir_vms.c,v 1.20 2004/08/26 13:36:05 _cvs_levitte Exp $ */
+/*
+ * 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
+
+/* Because some compiler options hide this macor */
+#ifndef EVMSERR
+#define EVMSERR		65535  /* error for non-translatable VMS errors */
+#endif
+
+struct LP_dir_context_st
+{
+  unsigned long VMS_context;
+#ifdef NAML$C_MAXRSS
+  char filespec[NAML$C_MAXRSS+1];
+  char result[NAML$C_MAXRSS+1];
+#else
+  char filespec[256];
+  char result[256];
+#endif
+  struct dsc$descriptor_d filespec_dsc;
+  struct dsc$descriptor_d result_dsc;
+};
+
+const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)
+{
+  int status;
+  char *p, *r;
+  size_t l;
+  unsigned long flags = 0;
+#ifdef NAML$C_MAXRSS
+  flags |= LIB$M_FIL_LONG_NAMES;
+#endif
+
+  if (ctx == NULL || directory == NULL)
+    {
+      errno = EINVAL;
+      return 0;
+    }
+
+  errno = 0;
+  if (*ctx == NULL)
+    {
+      size_t filespeclen = strlen(directory);
+      char *filespec = NULL;
+
+      /* MUST be a VMS directory specification!  Let's estimate if it is. */
+      if (directory[filespeclen-1] != ']'
+	  && directory[filespeclen-1] != '>'
+	  && directory[filespeclen-1] != ':')
+	{
+	  errno = EINVAL;
+	  return 0;
+	}
+
+      filespeclen += 4;		/* "*.*;" */
+
+      if (filespeclen >
+#ifdef NAML$C_MAXRSS
+	  NAML$C_MAXRSS
+#else
+	  255
+#endif
+	  )
+	{
+	  errno = ENAMETOOLONG;
+	  return 0;
+	}
+
+      *ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX));
+      if (*ctx == NULL)
+	{
+	  errno = ENOMEM;
+	  return 0;
+	}
+      memset(*ctx, '\0', sizeof(LP_DIR_CTX));
+
+      strcpy((*ctx)->filespec,directory);
+      strcat((*ctx)->filespec,"*.*;");
+      (*ctx)->filespec_dsc.dsc$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$a_pointer = 0;
+    }
+
+  (*ctx)->result_dsc.dsc$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;
+}
+