merge with debian/experimental

[apt.git] / apt-pkg / contrib / strutl.cc

diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index 987f4c3a48414ec99cab139feccc8d99841b9425..aaf44b7ff95fff6601300c06f6a1c0a4bc4b9ac5 100644 (file)
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -15,12 +15,12 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Includes                                                            /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // Includes                                                            /*{{{*/

+#include <config.h>
+

 #include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/error.h>
 
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/error.h>
 

-#include <apti18n.h>
-    

 #include <ctype.h>
 #include <string.h>
 #include <stdio.h>
 #include <ctype.h>
 #include <string.h>
 #include <stdio.h>


@@ -31,7 +31,7 @@
 #include <stdarg.h>
 #include <iconv.h>
 
 #include <stdarg.h>
 #include <iconv.h>
 

-#include "config.h"
+#include <apti18n.h>

 
 using namespace std;
                                                                        /*}}}*/
 
 using namespace std;
                                                                        /*}}}*/


@@ -271,7 +271,7 @@ bool ParseCWord(const char *&String,string &Res)
 string QuoteString(const string &Str, const char *Bad)
 {
    string Res;
 string QuoteString(const string &Str, const char *Bad)
 {
    string Res;

-   for (string::const_iterator I = Str.begin(); I != Str.end(); I++)
+   for (string::const_iterator I = Str.begin(); I != Str.end(); ++I)

    {
       if (strchr(Bad,*I) != 0 || isprint(*I) == 0 || 
          *I == 0x25 || // percent '%' char
    {
       if (strchr(Bad,*I) != 0 || isprint(*I) == 0 || 
          *I == 0x25 || // percent '%' char


@@ -298,7 +298,7 @@ string DeQuoteString(string::const_iterator const &begin,
                        string::const_iterator const &end)
 {
    string Res;
                        string::const_iterator const &end)
 {
    string Res;

-   for (string::const_iterator I = begin; I != end; I++)
+   for (string::const_iterator I = begin; I != end; ++I)

    {
       if (*I == '%' && I + 2 < end &&
          isxdigit(I[1]) && isxdigit(I[2]))
    {
       if (*I == '%' && I + 2 < end &&
          isxdigit(I[1]) && isxdigit(I[2]))


@@ -632,7 +632,7 @@ string LookupTag(const string &Message,const char *Tag,const char *Default)
 {
    // Look for a matching tag.
    int Length = strlen(Tag);
 {
    // Look for a matching tag.
    int Length = strlen(Tag);

-   for (string::const_iterator I = Message.begin(); I + Length < Message.end(); I++)
+   for (string::const_iterator I = Message.begin(); I + Length < Message.end(); ++I)

    {
       // Found the tag
       if (I[Length] == ':' && stringcasecmp(I,I+Length,Tag) == 0)
    {
       // Found the tag
       if (I[Length] == ':' && stringcasecmp(I,I+Length,Tag) == 0)


@@ -640,14 +640,14 @@ string LookupTag(const string &Message,const char *Tag,const char *Default)
         // Find the end of line and strip the leading/trailing spaces
         string::const_iterator J;
         I += Length + 1;
         // Find the end of line and strip the leading/trailing spaces
         string::const_iterator J;
         I += Length + 1;

-        for (; isspace(*I) != 0 && I < Message.end(); I++);
-        for (J = I; *J != '\n' && J < Message.end(); J++);
-        for (; J > I && isspace(J[-1]) != 0; J--);
+        for (; isspace(*I) != 0 && I < Message.end(); ++I);
+        for (J = I; *J != '\n' && J < Message.end(); ++J);
+        for (; J > I && isspace(J[-1]) != 0; --J);

         
         return string(I,J);
       }
       
         
         return string(I,J);
       }
       

-      for (; *I != '\n' && I < Message.end(); I++);
+      for (; *I != '\n' && I < Message.end(); ++I);

    }   
    
    // Failed to find a match
    }   
    
    // Failed to find a match


@@ -692,14 +692,16 @@ int StringToBool(const string &Text,int Default)
    year 2000 complient and timezone neutral */
 string TimeRFC1123(time_t Date)
 {
    year 2000 complient and timezone neutral */
 string TimeRFC1123(time_t Date)
 {

-   struct tm Conv = *gmtime(&Date);
-   char Buf[300];
+   struct tm Conv;
+   if (gmtime_r(&Date, &Conv) == NULL)
+      return "";

 
 

+   char Buf[300];

    const char *Day[] = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
    const char *Month[] = {"Jan","Feb","Mar","Apr","May","Jun","Jul",
                           "Aug","Sep","Oct","Nov","Dec"};
 
    const char *Day[] = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
    const char *Month[] = {"Jan","Feb","Mar","Apr","May","Jun","Jul",
                           "Aug","Sep","Oct","Nov","Dec"};
 

-   sprintf(Buf,"%s, %02i %s %i %02i:%02i:%02i GMT",Day[Conv.tm_wday],
+   snprintf(Buf, sizeof(Buf), "%s, %02i %s %i %02i:%02i:%02i GMT",Day[Conv.tm_wday],

           Conv.tm_mday,Month[Conv.tm_mon],Conv.tm_year+1900,Conv.tm_hour,
           Conv.tm_min,Conv.tm_sec);
    return Buf;
           Conv.tm_mday,Month[Conv.tm_mon],Conv.tm_year+1900,Conv.tm_hour,
           Conv.tm_min,Conv.tm_sec);
    return Buf;


@@ -968,6 +970,51 @@ bool StrToNum(const char *Str,unsigned long &Res,unsigned Len,unsigned Base)
    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/

+// StrToNum - Convert a fixed length string to a number                        /*{{{*/
+// ---------------------------------------------------------------------
+/* This is used in decoding the crazy fixed length string headers in 
+   tar and ar files. */
+bool StrToNum(const char *Str,unsigned long long &Res,unsigned Len,unsigned Base)
+{
+   char S[30];
+   if (Len >= sizeof(S))
+      return false;
+   memcpy(S,Str,Len);
+   S[Len] = 0;
+   
+   // All spaces is a zero
+   Res = 0;
+   unsigned I;
+   for (I = 0; S[I] == ' '; I++);
+   if (S[I] == 0)
+      return true;
+   
+   char *End;
+   Res = strtoull(S,&End,Base);
+   if (End == S)
+      return false;
+   
+   return true;
+}
+                                                                       /*}}}*/
+
+// Base256ToNum - Convert a fixed length binary to a number             /*{{{*/
+// ---------------------------------------------------------------------
+/* This is used in decoding the 256bit encoded fixed length fields in
+   tar files */
+bool Base256ToNum(const char *Str,unsigned long &Res,unsigned int Len)
+{
+   if ((Str[0] & 0x80) == 0)
+      return false;
+   else
+   {
+      Res = Str[0] & 0x7F;
+      for(unsigned int i = 1; i < Len; ++i)
+         Res = (Res<<8) + Str[i];
+      return true;
+   }
+}
+                                                                       /*}}}*/

 // HexDigit - Convert a hex character into an integer                  /*{{{*/
 // ---------------------------------------------------------------------
 /* Helper for Hex2Num */
 // HexDigit - Convert a hex character into an integer                  /*{{{*/
 // ---------------------------------------------------------------------
 /* Helper for Hex2Num */


@@ -1174,6 +1221,15 @@ char *safe_snprintf(char *Buffer,char *End,const char *Format,...)
    return Buffer + Did;
 }
                                                                        /*}}}*/
    return Buffer + Did;
 }
                                                                        /*}}}*/

+// StripEpoch - Remove the version "epoch" from a version string       /*{{{*/
+// ---------------------------------------------------------------------
+string StripEpoch(const string &VerStr)
+{
+   size_t i = VerStr.find(":");
+   if (i == string::npos)
+      return VerStr;
+   return VerStr.substr(i+1);
+}

 
 // tolower_ascii - tolower() function that ignores the locale          /*{{{*/
 // ---------------------------------------------------------------------
 
 // tolower_ascii - tolower() function that ignores the locale          /*{{{*/
 // ---------------------------------------------------------------------


@@ -1196,7 +1252,7 @@ int tolower_ascii(int const c)
 bool CheckDomainList(const string &Host,const string &List)
 {
    string::const_iterator Start = List.begin();
 bool CheckDomainList(const string &Host,const string &List)
 {
    string::const_iterator Start = List.begin();

-   for (string::const_iterator Cur = List.begin(); Cur <= List.end(); Cur++)
+   for (string::const_iterator Cur = List.begin(); Cur <= List.end(); ++Cur)

    {
       if (Cur < List.end() && *Cur != ',')
         continue;
    {
       if (Cur < List.end() && *Cur != ',')
         continue;


@@ -1212,7 +1268,68 @@ bool CheckDomainList(const string &Host,const string &List)
    return false;
 }
                                                                        /*}}}*/
    return false;
 }
                                                                        /*}}}*/

+// DeEscapeString - unescape (\0XX and \xXX) from a string             /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string DeEscapeString(const string &input)
+{
+   char tmp[3];
+   string::const_iterator it, escape_start;
+   string output, octal, hex;
+   for (it = input.begin(); it != input.end(); ++it)
+   {
+      // just copy non-escape chars
+      if (*it != '\\')
+      {
+         output += *it;
+         continue;
+      }
+
+      // deal with double escape
+      if (*it == '\\' && 
+          (it + 1 < input.end()) &&  it[1] == '\\')
+      {
+         // copy
+         output += *it;
+         // advance iterator one step further
+         ++it;
+         continue;
+      }
+        
+      // ensure we have a char to read
+      if (it + 1 == input.end())
+         continue;

 
 

+      // read it
+      ++it;
+      switch (*it)
+      {
+         case '0':
+            if (it + 2 <= input.end()) {
+               tmp[0] = it[1];
+               tmp[1] = it[2];
+               tmp[2] = 0;
+               output += (char)strtol(tmp, 0, 8);
+               it += 2;
+            }
+            break;
+         case 'x':
+            if (it + 2 <= input.end()) {
+               tmp[0] = it[1];
+               tmp[1] = it[2];
+               tmp[2] = 0;
+               output += (char)strtol(tmp, 0, 16);
+               it += 2;
+            }
+            break;
+         default:
+            // FIXME: raise exception here?
+            break;
+      }
+   }
+   return output;
+}
+                                                                       /*}}}*/

 // URI::CopyFrom - Copy from an object                                 /*{{{*/
 // ---------------------------------------------------------------------
 /* This parses the URI into all of its components */
 // URI::CopyFrom - Copy from an object                                 /*{{{*/
 // ---------------------------------------------------------------------
 /* This parses the URI into all of its components */


@@ -1221,7 +1338,7 @@ void URI::CopyFrom(const string &U)
    string::const_iterator I = U.begin();
 
    // Locate the first colon, this separates the scheme
    string::const_iterator I = U.begin();
 
    // Locate the first colon, this separates the scheme

-   for (; I < U.end() && *I != ':' ; I++);
+   for (; I < U.end() && *I != ':' ; ++I);

    string::const_iterator FirstColon = I;
 
    /* Determine if this is a host type URI with a leading double //
    string::const_iterator FirstColon = I;
 
    /* Determine if this is a host type URI with a leading double //


@@ -1233,7 +1350,7 @@ void URI::CopyFrom(const string &U)
    /* Find the / indicating the end of the hostname, ignoring /'s in the
       square brackets */
    bool InBracket = false;
    /* Find the / indicating the end of the hostname, ignoring /'s in the
       square brackets */
    bool InBracket = false;

-   for (; SingleSlash < U.end() && (*SingleSlash != '/' || InBracket == true); SingleSlash++)
+   for (; SingleSlash < U.end() && (*SingleSlash != '/' || InBracket == true); ++SingleSlash)

    {
       if (*SingleSlash == '[')
         InBracket = true;
    {
       if (*SingleSlash == '[')
         InBracket = true;


@@ -1266,11 +1383,11 @@ void URI::CopyFrom(const string &U)
    I = FirstColon + 1;
    if (I > SingleSlash)
       I = SingleSlash;
    I = FirstColon + 1;
    if (I > SingleSlash)
       I = SingleSlash;

-   for (; I < SingleSlash && *I != ':'; I++);
+   for (; I < SingleSlash && *I != ':'; ++I);

    string::const_iterator SecondColon = I;
    
    // Search for the @ after the colon
    string::const_iterator SecondColon = I;
    
    // Search for the @ after the colon

-   for (; I < SingleSlash && *I != '@'; I++);
+   for (; I < SingleSlash && *I != '@'; ++I);

    string::const_iterator At = I;
    
    // Now write the host and user/pass
    string::const_iterator At = I;
    
    // Now write the host and user/pass