Add m-esr52 at 52.6.0

1 files changed, 233 insertions, 0 deletions

diff --git a/security/nss/lib/base/nssbase.h b/security/nss/lib/base/nssbase.h
new file mode 100644
index 000000000..02e285fba
--- /dev/null
+++ b/security/nss/lib/base/nssbase.h
@@ -0,0 +1,233 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef NSSBASE_H
+#define NSSBASE_H
+
+/*
+ * nssbase.h
+ *
+ * This header file contains the prototypes of the basic public
+ * NSS routines.
+ */
+
+#ifndef NSSBASET_H
+#include "nssbaset.h"
+#endif /* NSSBASET_H */
+
+PR_BEGIN_EXTERN_C
+
+/*
+ * NSSArena
+ *
+ * The public methods relating to this type are:
+ *
+ *  NSSArena_Create  -- constructor
+ *  NSSArena_Destroy
+ *  NSS_ZAlloc
+ *  NSS_ZRealloc
+ *  NSS_ZFreeIf
+ */
+
+/*
+ * NSSArena_Create
+ *
+ * This routine creates a new memory arena.  This routine may return
+ * NULL upon error, in which case it will have created an error stack.
+ *
+ * The top-level error may be one of the following values:
+ *  NSS_ERROR_NO_MEMORY
+ *
+ * Return value:
+ *  NULL upon error
+ *  A pointer to an NSSArena upon success
+ */
+
+NSS_EXTERN NSSArena *NSSArena_Create(void);
+
+extern const NSSError NSS_ERROR_NO_MEMORY;
+
+/*
+ * NSSArena_Destroy
+ *
+ * This routine will destroy the specified arena, freeing all memory
+ * allocated from it.  This routine returns a PRStatus value; if
+ * successful, it will return PR_SUCCESS.  If unsuccessful, it will
+ * create an error stack and return PR_FAILURE.
+ *
+ * The top-level error may be one of the following values:
+ *  NSS_ERROR_INVALID_ARENA
+ *
+ * Return value:
+ *  PR_SUCCESS upon success
+ *  PR_FAILURE upon failure
+ */
+
+NSS_EXTERN PRStatus NSSArena_Destroy(NSSArena *arena);
+
+extern const NSSError NSS_ERROR_INVALID_ARENA;
+
+/*
+ * The error stack
+ *
+ * The public methods relating to the error stack are:
+ *
+ *  NSS_GetError
+ *  NSS_GetErrorStack
+ */
+
+/*
+ * NSS_GetError
+ *
+ * This routine returns the highest-level (most general) error set
+ * by the most recent NSS library routine called by the same thread
+ * calling this routine.
+ *
+ * This routine cannot fail.  It may return NSS_ERROR_NO_ERROR, which
+ * indicates that the previous NSS library call did not set an error.
+ *
+ * Return value:
+ *  0 if no error has been set
+ *  A nonzero error number
+ */
+
+NSS_EXTERN NSSError NSS_GetError(void);
+
+extern const NSSError NSS_ERROR_NO_ERROR;
+
+/*
+ * NSS_GetErrorStack
+ *
+ * This routine returns a pointer to an array of NSSError values,
+ * containingthe entire sequence or "stack" of errors set by the most
+ * recent NSS library routine called by the same thread calling this
+ * routine.  NOTE: the caller DOES NOT OWN the memory pointed to by
+ * the return value.  The pointer will remain valid until the calling
+ * thread calls another NSS routine.  The lowest-level (most specific)
+ * error is first in the array, and the highest-level is last.  The
+ * array is zero-terminated.  This routine may return NULL upon error;
+ * this indicates a low-memory situation.
+ *
+ * Return value:
+ *  NULL upon error, which is an implied NSS_ERROR_NO_MEMORY
+ *  A NON-caller-owned pointer to an array of NSSError values
+ */
+
+NSS_EXTERN NSSError *NSS_GetErrorStack(void);
+
+/*
+ * NSS_ZNEW
+ *
+ * This preprocessor macro will allocate memory for a new object
+ * of the specified type with nss_ZAlloc, and will cast the
+ * return value appropriately.  If the optional arena argument is
+ * non-null, the memory will be obtained from that arena; otherwise,
+ * the memory will be obtained from the heap.  This routine may
+ * return NULL upon error, in which case it will have set an error
+ * upon the error stack.
+ *
+ * The error may be one of the following values:
+ *  NSS_ERROR_INVALID_ARENA
+ *  NSS_ERROR_NO_MEMORY
+ *
+ * Return value:
+ *  NULL upon error
+ *  A pointer to the new segment of zeroed memory
+ */
+
+#define NSS_ZNEW(arenaOpt, type) ((type *)NSS_ZAlloc((arenaOpt), sizeof(type)))
+
+/*
+ * NSS_ZNEWARRAY
+ *
+ * This preprocessor macro will allocate memory for an array of
+ * new objects, and will cast the return value appropriately.
+ * If the optional arena argument is non-null, the memory will
+ * be obtained from that arena; otherwise, the memory will be
+ * obtained from the heap.  This routine may return NULL upon
+ * error, in which case it will have set an error upon the error
+ * stack.  The array size may be specified as zero.
+ *
+ * The error may be one of the following values:
+ *  NSS_ERROR_INVALID_ARENA
+ *  NSS_ERROR_NO_MEMORY
+ *
+ * Return value:
+ *  NULL upon error
+ *  A pointer to the new segment of zeroed memory
+ */
+
+#define NSS_ZNEWARRAY(arenaOpt, type, quantity) \
+    ((type *)NSS_ZAlloc((arenaOpt), sizeof(type) * (quantity)))
+
+/*
+ * NSS_ZAlloc
+ *
+ * This routine allocates and zeroes a section of memory of the
+ * size, and returns to the caller a pointer to that memory.  If
+ * the optional arena argument is non-null, the memory will be
+ * obtained from that arena; otherwise, the memory will be obtained
+ * from the heap.  This routine may return NULL upon error, in
+ * which case it will have set an error upon the error stack.  The
+ * value specified for size may be zero; in which case a valid
+ * zero-length block of memory will be allocated.  This block may
+ * be expanded by calling NSS_ZRealloc.
+ *
+ * The error may be one of the following values:
+ *  NSS_ERROR_INVALID_ARENA
+ *  NSS_ERROR_NO_MEMORY
+ *  NSS_ERROR_ARENA_MARKED_BY_ANOTHER_THREAD
+ *
+ * Return value:
+ *  NULL upon error
+ *  A pointer to the new segment of zeroed memory
+ */
+
+NSS_EXTERN void *NSS_ZAlloc(NSSArena *arenaOpt, PRUint32 size);
+
+/*
+ * NSS_ZRealloc
+ *
+ * This routine reallocates a block of memory obtained by calling
+ * nss_ZAlloc or nss_ZRealloc.  The portion of memory
+ * between the new and old sizes -- which is either being newly
+ * obtained or released -- is in either case zeroed.  This routine
+ * may return NULL upon failure, in which case it will have placed
+ * an error on the error stack.
+ *
+ * The error may be one of the following values:
+ *  NSS_ERROR_INVALID_POINTER
+ *  NSS_ERROR_NO_MEMORY
+ *  NSS_ERROR_ARENA_MARKED_BY_ANOTHER_THREAD
+ *
+ * Return value:
+ *  NULL upon error
+ *  A pointer to the replacement segment of memory
+ */
+
+NSS_EXTERN void *NSS_ZRealloc(void *pointer, PRUint32 newSize);
+
+/*
+ * NSS_ZFreeIf
+ *
+ * If the specified pointer is non-null, then the region of memory
+ * to which it points -- which must have been allocated with
+ * nss_ZAlloc -- will be zeroed and released.  This routine
+ * returns a PRStatus value; if successful, it will return PR_SUCCESS.
+ * If unsuccessful, it will set an error on the error stack and return
+ * PR_FAILURE.
+ *
+ * The error may be one of the following values:
+ *  NSS_ERROR_INVALID_POINTER
+ *
+ * Return value:
+ *  PR_SUCCESS
+ *  PR_FAILURE
+ */
+
+NSS_EXTERN PRStatus NSS_ZFreeIf(void *pointer);
+
+PR_END_EXTERN_C
+
+#endif /* NSSBASE_H */