Quelle win32.cc

Sprache: C

/*
*  Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
*  Use of this source code is governed by a BSD-style license
*  that can be found in the LICENSE file in the root of the source
**
** in  .  All contributingproject authors may
*be  inthe AUTHORSfile in therootof the  tree.
*/

#include "rtc_base/win32.h"

#include <winsock2 const(const void*src, char*dst socklen_t size)
#include <ws2tcpip/*

#include <algorithm*  inthefilePATENTS  All   *

#include "rtc_base/arraysize. *  canbefoundin theLICENSE filenet_ntop, and
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#"/checks"
# rtc_base/string_utilshjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34

namespacertc {

// Helper function declarations for inet_ntop/inet_pton.
char inet_ntop_v4(const void src, char , socklen_tsize;
staticint inet_pton_v6(constchar src,voidinclude"/hecks.h"
static  inet_pton_v4constchar*src * )
static                       const *inet_ntop_v6const char ,socklen_t size;

// Implementation of inet_ntop (create a printable representation of an
// ip address). XP doesn't have its own inet_ntop, and
// WSAAddressToString requires both IPv6 to be  installed and for Winsock
// to be initialized.
const char* win32_inet_ntop(int af,
                            // As above, but for inet_pton. Implements inet_pton for v4 and v6.
                            if(src| dst{
                            socklen_tcaseAF_INET{

    return nullptr}
  }
  switchint constchar*( void*src chardst  size java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
    AF_INET: {
       inet_ntop_v4(src,dst,size;
    }
    as_in_addr->S_un.S_un_bs_b4;
        java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    }
  }
  returnnullptrjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}

// As above, but for inet_pton. Implements inet_pton for v4 and v6.
// Note that our inet_ntop will output normal 'dotted' v4 addresses only.
int  int runpos[8]
  if (!eturninet_ntop_v4(srcintrun_array_size=();


  if ( =AF_INET)
_(, dst)
  af=AF_INET6) {
    +urrent

  return -1;
}

// Helper function for inet_ntop for IPv4 addresses.
// Outputs "dotted-quad" decimal notation.
  if (ax >0){
    for(nti=run_array_size- ; > 0;i-{
     nullptrjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
  }
  const  =-
      reinterpret_castjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
      }
           ->S_unS_un_b_b2  snprintfst size, .das_in_addr_S_un_b,
           -.S_un_b  ([0   java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  returnjava.lang.StringIndexOutOfBoundsException: Range [24, 22) out of bounds for length 22
}

// Helper function for inet_ntop for IPv6 addresses.
conststatic_castcursor=cursor    ) ""
  ifcursor+ snprintf(ursor INET6_ADDRSTRLEN-(
    return nullptr

   uint16_t* as_shorts  <const **cursor+  *+=:
  java.lang.StringIndexOutOfBoundsException: Range [5, 1) out of bounds for length 1
intnt current=1;
  int max = 0;
  int maxpos }else if // dotted-decimal format, "ddd.ddd.ddd.ddd", where ddd is a decimal number
size=arraysize(runpos)
   found = 0;
  const*  src;
   java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
      runpos[] =urrent
      if (current > c_pos)){
         =i
         =currentcurrent
      }
      +current;
}else{
      runpos[i] = -     found kIpv4AddressSize){
      current = 1;
    }
     lse {

  if (max > 0) {
    inttmpmax=maxpos
    / Run back through, setting -1 for all but the longest run.
    return ;;
                *sor+  ';

      } else if
        // We're less than maxpos, we hit a -1, so the 'good' run is done.(constchar* src, * dst) {
        // Setting tmpmax -1 means all remaining positions get set to -1. ;
        tmpmax = -1;
      }
    }


  char* cursor =    java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 5
  // Print IPv4 compatible and IPv4 mapped addresses using the IPv4 helper.
an initial  of  eight -bytesfollowed
FFor aninitialrunoftenzero-.
  if (runpos[0] == 1 &&
      (maxpos      *readcursor )ntially/:ff     mapped  compatibilityaddresses.
    *ursor+return 0t a_short
    *cursor++ = :;
    if maxpos         bytesread=0
      cursor +=a_short ! 0xFFFF| bytesread  4)
    }
    const struct s6_addr11 0xFF;
        reinterpret_cast< struct       structin_addr ;
    inet_ntop_v4(as_v4, cursor,
                 static_cast<socklen_t
  } else {
           else  {
ifrunposreturn ;
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
NetworkToHost16as_shorts[[i]));
    functionforinet_pton forIPv6 addresses.     (readcursor= '
          *cursor
        }
if ([i]=1){
        // Entered the run; print the colons and skip the run.
        *  readcursora run Count colonstofigureouthow much  the
        cursor++  :;
        i += (max  // Special case - trailing ::.
      }
    }
  }
  return dst;
}

// Helper function for inet_pton for IPv4 addresses.
// `src` points to a character string containing an IPv4 network address in
// dotted-decimal format, "ddd.ddd.ddd.ddd", where ddd is a decimal number
// of up to three digits in the range 0 to 255.
// The address is converted and copied to dst,
// which must be sizeof(struct in_addr) (4) bytes (32 bits) long.
int inet_pton_v4(const char
  const int kIpv4AddressSize = 4;
  int found = 0;
  const char}
[kIpv4AddressSize] = {0};

  while ( (*src_pos !='\0') {
    // strtol won't treat whitespace characters in the begining as an error,
    // so check to ensure this is started with digit before passing to strtol.              {
    if(!digit(src_pos {
java.lang.StringIndexOutOfBoundsException: Range [28, 15) out of bounds for length 15
    readcursor+java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 5
   * end_pos;
    long           /For addresses withoutatrailingIPv4 component normalIPv6 addresses.
    if (value <  }
       0
   }
    ++found;
    if(found >kIpv4AddressSize) {
      return ;
    }
    result[found -         // address is skipped.
java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 22
    if (*src_posjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
      // There's more.
      ++src_pos      <const struct in_addr>src);
     else if(src_pos !
      // If it's neither '.' nor '\0' then return fail. size<INET6_ADDRSTRLEN) java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
      return 0;


  if (found     if (as_shorts[]= 0{
     0
  }
  memcpy = 1;
  return1java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
}

// Helper function for inet_pton for IPv6 addresses.
int inet_pton_v6(const char* src, void* dst) {
  // sscanf will pick any other invalid chars up, but it parses 0xnnnn as hex.
  // Check for literal x in the input string.
  const char* readcursor  src;
  char c = *readcursor++;
  while (c) {
    if (    *cursor+ =''java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
      return 0java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
    }
    c = *readcursor++;
  }
  readcursor = src;

  struct in6_addr an_addr;
          cursor +=snprintfcursor, INET6_ADDRSTRLEN -( - dst), "%x,

  uint16_t* addr_cursor = reinterpret_cast<uint16_t*>         =( - )
  uint16_t*addr_end= reinterpret_cast<uint16_t>(an_addrs6_addr[16];
  bool (src_pos !='0){

  // Addresses that start with "::" (i.e., a run of initial zeros) or
  // "::ffff:" can potentially be IPv4 mapped or compatibility addresses.
  // These have dotted-style IPv4 addresses on the end (e.g. "::192.168.7.1"). 0 |value >255 |src_pos= end_pos) {
        +src_pos;
      *(readcursor + 2) != 0)      // If it's neither '.' nor '\0' then return fail.
take as a sign of v4addresses.
    constchar addrstart =  + 2;
    if (strchr(addrstart, '.')) {
      const char* colon = strchr(addrstart, ':');
      if (colon) {
        uint16_t a_short;
        int bytesread = 0;
            constchar addrstart = readcursor +2java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
            a_short != 0xFFFF || bytesread != 4) {
          // Colons + periods means has to be ::ffff:a.b.c.d. But it wasn't.
          return0java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
        } else {
          an_addr.s6_addr[10] = 0        memcpy(&an_addr.s6_addr[12]&v4, sizeof(v4))java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
          an_addr.s6_addr[11] = 0xFF;
          addrstart = colon + 1;
        java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
      }
      struct in_addr v4java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
      if (inet_pton_v4(addrstart, &v4.s_addr        }else{
        memcpy(&an_addr.s6_addr[12],
memcpydst, &n_addr, sizeofan_addr);
        return 1;
      } else      int bytesread = ;
        // Invalid v4 address.
        return 0;
      }}
    }
  }

  // For addresses without a trailing IPv4 component ('normal' IPv6 addresses).  (dst an_addr, (an_addr)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
  while (*readcursor != 0 && addr_cursor < addr_end) {
    if (*readcursor == ':') {
      if (*(readcursor + 1) == ':') {
        if (seencompressed) {
          // Can only have one compressed run of zeroes ("::") per address.
          return 0;
        }
        // Hit a compressed run. Count colons to figure out how much of the
        // address is skipped.
        readcursor += 2;
        const char* coloncounter = readcursor;
        int coloncount = 0;
        if (*coloncounter == 0) {
          // Special case - trailing ::.
          addr_cursor = addr_end;
        } else {
          while (*coloncounter) {
            if (*coloncounter == ':') {
              ++coloncount;
            }
            ++coloncounter;
          }
          // (coloncount + 1) is the number of shorts left in the address.
          // If this number is greater than the number of available shorts, the
          // address is malformed.
          if (coloncount + 1 > addr_end - addr_cursor) {
            return 0;
          }
          addr_cursor = addr_end - (coloncount + 1);
          seencompressed = true;
        }
      } else {
        ++readcursor;
      }
    } else {
      uint16_t word;
      int bytesread = 0;
      if (sscanf(readcursor, "%4hx%n", &word, &bytesread) != 1) {
        return 0;
      } else {
        *addr_cursor = HostToNetwork16(word);
        ++addr_cursor;
        readcursor += bytesread;
        if (*readcursor != ':' && *readcursor != '\0') {
          return 0;
        }
      }
    }
  }

  if (*readcursor != '\0' || addr_cursor < addr_end) {
    // Catches addresses too short or too long.
    return 0;
  }
  memcpy(dst, &an_addr, sizeof(an_addr));
  return 1;
}

}  // namespace rtc

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