X-Git-Url: http://ftp.carnet.hr/pub/carnet-debian/scm?a=blobdiff_plain;f=src%2Fexternal%2Fzlib-1.2.8%2Fcontrib%2Fiostream3%2Fzfstream.cc;fp=src%2Fexternal%2Fzlib-1.2.8%2Fcontrib%2Fiostream3%2Fzfstream.cc;h=0000000000000000000000000000000000000000;hb=3f728675941dc69d4e544d3a880a56240a6e394a;hp=94eb933444a967755a3aa81ee1d5dcb6435153b8;hpb=927951d1c1ad45ba9e7325f07d996154a91c911b;p=ossec-hids.git

diff --git a/src/external/zlib-1.2.8/contrib/iostream3/zfstream.cc b/src/external/zlib-1.2.8/contrib/iostream3/zfstream.cc
deleted file mode 100644
index 94eb933..0000000
--- a/src/external/zlib-1.2.8/contrib/iostream3/zfstream.cc
+++ /dev/null
@@ -1,479 +0,0 @@
-/*
- * A C++ I/O streams interface to the zlib gz* functions
- *
- * by Ludwig Schwardt <schwardt@sun.ac.za>
- * original version by Kevin Ruland <kevin@rodin.wustl.edu>
- *
- * This version is standard-compliant and compatible with gcc 3.x.
- */
-
-#include "zfstream.h"
-#include <cstring>          // for strcpy, strcat, strlen (mode strings)
-#include <cstdio>           // for BUFSIZ
-
-// Internal buffer sizes (default and "unbuffered" versions)
-#define BIGBUFSIZE BUFSIZ
-#define SMALLBUFSIZE 1
-
-/*****************************************************************************/
-
-// Default constructor
-gzfilebuf::gzfilebuf()
-: file(NULL), io_mode(std::ios_base::openmode(0)), own_fd(false),
-  buffer(NULL), buffer_size(BIGBUFSIZE), own_buffer(true)
-{
-  // No buffers to start with
-  this->disable_buffer();
-}
-
-// Destructor
-gzfilebuf::~gzfilebuf()
-{
-  // Sync output buffer and close only if responsible for file
-  // (i.e. attached streams should be left open at this stage)
-  this->sync();
-  if (own_fd)
-    this->close();
-  // Make sure internal buffer is deallocated
-  this->disable_buffer();
-}
-
-// Set compression level and strategy
-int
-gzfilebuf::setcompression(int comp_level,
-                          int comp_strategy)
-{
-  return gzsetparams(file, comp_level, comp_strategy);
-}
-
-// Open gzipped file
-gzfilebuf*
-gzfilebuf::open(const char *name,
-                std::ios_base::openmode mode)
-{
-  // Fail if file already open
-  if (this->is_open())
-    return NULL;
-  // Don't support simultaneous read/write access (yet)
-  if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
-    return NULL;
-
-  // Build mode string for gzopen and check it [27.8.1.3.2]
-  char char_mode[6] = "\0\0\0\0\0";
-  if (!this->open_mode(mode, char_mode))
-    return NULL;
-
-  // Attempt to open file
-  if ((file = gzopen(name, char_mode)) == NULL)
-    return NULL;
-
-  // On success, allocate internal buffer and set flags
-  this->enable_buffer();
-  io_mode = mode;
-  own_fd = true;
-  return this;
-}
-
-// Attach to gzipped file
-gzfilebuf*
-gzfilebuf::attach(int fd,
-                  std::ios_base::openmode mode)
-{
-  // Fail if file already open
-  if (this->is_open())
-    return NULL;
-  // Don't support simultaneous read/write access (yet)
-  if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
-    return NULL;
-
-  // Build mode string for gzdopen and check it [27.8.1.3.2]
-  char char_mode[6] = "\0\0\0\0\0";
-  if (!this->open_mode(mode, char_mode))
-    return NULL;
-
-  // Attempt to attach to file
-  if ((file = gzdopen(fd, char_mode)) == NULL)
-    return NULL;
-
-  // On success, allocate internal buffer and set flags
-  this->enable_buffer();
-  io_mode = mode;
-  own_fd = false;
-  return this;
-}
-
-// Close gzipped file
-gzfilebuf*
-gzfilebuf::close()
-{
-  // Fail immediately if no file is open
-  if (!this->is_open())
-    return NULL;
-  // Assume success
-  gzfilebuf* retval = this;
-  // Attempt to sync and close gzipped file
-  if (this->sync() == -1)
-    retval = NULL;
-  if (gzclose(file) < 0)
-    retval = NULL;
-  // File is now gone anyway (postcondition [27.8.1.3.8])
-  file = NULL;
-  own_fd = false;
-  // Destroy internal buffer if it exists
-  this->disable_buffer();
-  return retval;
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-// Convert int open mode to mode string
-bool
-gzfilebuf::open_mode(std::ios_base::openmode mode,
-                     char* c_mode) const
-{
-  bool testb = mode & std::ios_base::binary;
-  bool testi = mode & std::ios_base::in;
-  bool testo = mode & std::ios_base::out;
-  bool testt = mode & std::ios_base::trunc;
-  bool testa = mode & std::ios_base::app;
-
-  // Check for valid flag combinations - see [27.8.1.3.2] (Table 92)
-  // Original zfstream hardcoded the compression level to maximum here...
-  // Double the time for less than 1% size improvement seems
-  // excessive though - keeping it at the default level
-  // To change back, just append "9" to the next three mode strings
-  if (!testi && testo && !testt && !testa)
-    strcpy(c_mode, "w");
-  if (!testi && testo && !testt && testa)
-    strcpy(c_mode, "a");
-  if (!testi && testo && testt && !testa)
-    strcpy(c_mode, "w");
-  if (testi && !testo && !testt && !testa)
-    strcpy(c_mode, "r");
-  // No read/write mode yet
-//  if (testi && testo && !testt && !testa)
-//    strcpy(c_mode, "r+");
-//  if (testi && testo && testt && !testa)
-//    strcpy(c_mode, "w+");
-
-  // Mode string should be empty for invalid combination of flags
-  if (strlen(c_mode) == 0)
-    return false;
-  if (testb)
-    strcat(c_mode, "b");
-  return true;
-}
-
-// Determine number of characters in internal get buffer
-std::streamsize
-gzfilebuf::showmanyc()
-{
-  // Calls to underflow will fail if file not opened for reading
-  if (!this->is_open() || !(io_mode & std::ios_base::in))
-    return -1;
-  // Make sure get area is in use
-  if (this->gptr() && (this->gptr() < this->egptr()))
-    return std::streamsize(this->egptr() - this->gptr());
-  else
-    return 0;
-}
-
-// Fill get area from gzipped file
-gzfilebuf::int_type
-gzfilebuf::underflow()
-{
-  // If something is left in the get area by chance, return it
-  // (this shouldn't normally happen, as underflow is only supposed
-  // to be called when gptr >= egptr, but it serves as error check)
-  if (this->gptr() && (this->gptr() < this->egptr()))
-    return traits_type::to_int_type(*(this->gptr()));
-
-  // If the file hasn't been opened for reading, produce error
-  if (!this->is_open() || !(io_mode & std::ios_base::in))
-    return traits_type::eof();
-
-  // Attempt to fill internal buffer from gzipped file
-  // (buffer must be guaranteed to exist...)
-  int bytes_read = gzread(file, buffer, buffer_size);
-  // Indicates error or EOF
-  if (bytes_read <= 0)
-  {
-    // Reset get area
-    this->setg(buffer, buffer, buffer);
-    return traits_type::eof();
-  }
-  // Make all bytes read from file available as get area
-  this->setg(buffer, buffer, buffer + bytes_read);
-
-  // Return next character in get area
-  return traits_type::to_int_type(*(this->gptr()));
-}
-
-// Write put area to gzipped file
-gzfilebuf::int_type
-gzfilebuf::overflow(int_type c)
-{
-  // Determine whether put area is in use
-  if (this->pbase())
-  {
-    // Double-check pointer range
-    if (this->pptr() > this->epptr() || this->pptr() < this->pbase())
-      return traits_type::eof();
-    // Add extra character to buffer if not EOF
-    if (!traits_type::eq_int_type(c, traits_type::eof()))
-    {
-      *(this->pptr()) = traits_type::to_char_type(c);
-      this->pbump(1);
-    }
-    // Number of characters to write to file
-    int bytes_to_write = this->pptr() - this->pbase();
-    // Overflow doesn't fail if nothing is to be written
-    if (bytes_to_write > 0)
-    {
-      // If the file hasn't been opened for writing, produce error
-      if (!this->is_open() || !(io_mode & std::ios_base::out))
-        return traits_type::eof();
-      // If gzipped file won't accept all bytes written to it, fail
-      if (gzwrite(file, this->pbase(), bytes_to_write) != bytes_to_write)
-        return traits_type::eof();
-      // Reset next pointer to point to pbase on success
-      this->pbump(-bytes_to_write);
-    }
-  }
-  // Write extra character to file if not EOF
-  else if (!traits_type::eq_int_type(c, traits_type::eof()))
-  {
-    // If the file hasn't been opened for writing, produce error
-    if (!this->is_open() || !(io_mode & std::ios_base::out))
-      return traits_type::eof();
-    // Impromptu char buffer (allows "unbuffered" output)
-    char_type last_char = traits_type::to_char_type(c);
-    // If gzipped file won't accept this character, fail
-    if (gzwrite(file, &last_char, 1) != 1)
-      return traits_type::eof();
-  }
-
-  // If you got here, you have succeeded (even if c was EOF)
-  // The return value should therefore be non-EOF
-  if (traits_type::eq_int_type(c, traits_type::eof()))
-    return traits_type::not_eof(c);
-  else
-    return c;
-}
-
-// Assign new buffer
-std::streambuf*
-gzfilebuf::setbuf(char_type* p,
-                  std::streamsize n)
-{
-  // First make sure stuff is sync'ed, for safety
-  if (this->sync() == -1)
-    return NULL;
-  // If buffering is turned off on purpose via setbuf(0,0), still allocate one...
-  // "Unbuffered" only really refers to put [27.8.1.4.10], while get needs at
-  // least a buffer of size 1 (very inefficient though, therefore make it bigger?)
-  // This follows from [27.5.2.4.3]/12 (gptr needs to point at something, it seems)
-  if (!p || !n)
-  {
-    // Replace existing buffer (if any) with small internal buffer
-    this->disable_buffer();
-    buffer = NULL;
-    buffer_size = 0;
-    own_buffer = true;
-    this->enable_buffer();
-  }
-  else
-  {
-    // Replace existing buffer (if any) with external buffer
-    this->disable_buffer();
-    buffer = p;
-    buffer_size = n;
-    own_buffer = false;
-    this->enable_buffer();
-  }
-  return this;
-}
-
-// Write put area to gzipped file (i.e. ensures that put area is empty)
-int
-gzfilebuf::sync()
-{
-  return traits_type::eq_int_type(this->overflow(), traits_type::eof()) ? -1 : 0;
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-// Allocate internal buffer
-void
-gzfilebuf::enable_buffer()
-{
-  // If internal buffer required, allocate one
-  if (own_buffer && !buffer)
-  {
-    // Check for buffered vs. "unbuffered"
-    if (buffer_size > 0)
-    {
-      // Allocate internal buffer
-      buffer = new char_type[buffer_size];
-      // Get area starts empty and will be expanded by underflow as need arises
-      this->setg(buffer, buffer, buffer);
-      // Setup entire internal buffer as put area.
-      // The one-past-end pointer actually points to the last element of the buffer,
-      // so that overflow(c) can safely add the extra character c to the sequence.
-      // These pointers remain in place for the duration of the buffer
-      this->setp(buffer, buffer + buffer_size - 1);
-    }
-    else
-    {
-      // Even in "unbuffered" case, (small?) get buffer is still required
-      buffer_size = SMALLBUFSIZE;
-      buffer = new char_type[buffer_size];
-      this->setg(buffer, buffer, buffer);
-      // "Unbuffered" means no put buffer
-      this->setp(0, 0);
-    }
-  }
-  else
-  {
-    // If buffer already allocated, reset buffer pointers just to make sure no
-    // stale chars are lying around
-    this->setg(buffer, buffer, buffer);
-    this->setp(buffer, buffer + buffer_size - 1);
-  }
-}
-
-// Destroy internal buffer
-void
-gzfilebuf::disable_buffer()
-{
-  // If internal buffer exists, deallocate it
-  if (own_buffer && buffer)
-  {
-    // Preserve unbuffered status by zeroing size
-    if (!this->pbase())
-      buffer_size = 0;
-    delete[] buffer;
-    buffer = NULL;
-    this->setg(0, 0, 0);
-    this->setp(0, 0);
-  }
-  else
-  {
-    // Reset buffer pointers to initial state if external buffer exists
-    this->setg(buffer, buffer, buffer);
-    if (buffer)
-      this->setp(buffer, buffer + buffer_size - 1);
-    else
-      this->setp(0, 0);
-  }
-}
-
-/*****************************************************************************/
-
-// Default constructor initializes stream buffer
-gzifstream::gzifstream()
-: std::istream(NULL), sb()
-{ this->init(&sb); }
-
-// Initialize stream buffer and open file
-gzifstream::gzifstream(const char* name,
-                       std::ios_base::openmode mode)
-: std::istream(NULL), sb()
-{
-  this->init(&sb);
-  this->open(name, mode);
-}
-
-// Initialize stream buffer and attach to file
-gzifstream::gzifstream(int fd,
-                       std::ios_base::openmode mode)
-: std::istream(NULL), sb()
-{
-  this->init(&sb);
-  this->attach(fd, mode);
-}
-
-// Open file and go into fail() state if unsuccessful
-void
-gzifstream::open(const char* name,
-                 std::ios_base::openmode mode)
-{
-  if (!sb.open(name, mode | std::ios_base::in))
-    this->setstate(std::ios_base::failbit);
-  else
-    this->clear();
-}
-
-// Attach to file and go into fail() state if unsuccessful
-void
-gzifstream::attach(int fd,
-                   std::ios_base::openmode mode)
-{
-  if (!sb.attach(fd, mode | std::ios_base::in))
-    this->setstate(std::ios_base::failbit);
-  else
-    this->clear();
-}
-
-// Close file
-void
-gzifstream::close()
-{
-  if (!sb.close())
-    this->setstate(std::ios_base::failbit);
-}
-
-/*****************************************************************************/
-
-// Default constructor initializes stream buffer
-gzofstream::gzofstream()
-: std::ostream(NULL), sb()
-{ this->init(&sb); }
-
-// Initialize stream buffer and open file
-gzofstream::gzofstream(const char* name,
-                       std::ios_base::openmode mode)
-: std::ostream(NULL), sb()
-{
-  this->init(&sb);
-  this->open(name, mode);
-}
-
-// Initialize stream buffer and attach to file
-gzofstream::gzofstream(int fd,
-                       std::ios_base::openmode mode)
-: std::ostream(NULL), sb()
-{
-  this->init(&sb);
-  this->attach(fd, mode);
-}
-
-// Open file and go into fail() state if unsuccessful
-void
-gzofstream::open(const char* name,
-                 std::ios_base::openmode mode)
-{
-  if (!sb.open(name, mode | std::ios_base::out))
-    this->setstate(std::ios_base::failbit);
-  else
-    this->clear();
-}
-
-// Attach to file and go into fail() state if unsuccessful
-void
-gzofstream::attach(int fd,
-                   std::ios_base::openmode mode)
-{
-  if (!sb.attach(fd, mode | std::ios_base::out))
-    this->setstate(std::ios_base::failbit);
-  else
-    this->clear();
-}
-
-// Close file
-void
-gzofstream::close()
-{
-  if (!sb.close())
-    this->setstate(std::ios_base::failbit);
-}