Minor cleanups, fix for checksum lowercase bug

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

diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index 273118e9da5cd09b1d697edc859fc38d0d60a87b..fb5f6683c96e1a817aba5d7f6c37acf84408d6b1 100644 (file)
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/

-// $Id: strutl.cc,v 1.14 1998/12/03 07:29:18 jgg Exp $
+// $Id: strutl.cc,v 1.27 1999/07/26 17:46:08 jgg Exp $

 /* ######################################################################
 
    String Util - Some usefull string functions.
 /* ######################################################################
 
    String Util - Some usefull string functions.


@@ -16,15 +16,17 @@
                                                                        /*}}}*/
 // Includes                                                            /*{{{*/
 #ifdef __GNUG__
                                                                        /*}}}*/
 // Includes                                                            /*{{{*/
 #ifdef __GNUG__

-#pragma implementation "strutl.h"
+#pragma implementation "apt-pkg/strutl.h"

 #endif
 
 #endif
 

-#include <strutl.h>
+#include <apt-pkg/strutl.h>

 #include <apt-pkg/fileutl.h>
 
 #include <ctype.h>
 #include <string.h>
 #include <stdio.h>
 #include <apt-pkg/fileutl.h>
 
 #include <ctype.h>
 #include <string.h>
 #include <stdio.h>

+#include <unistd.h>
+#include <errno.h>

                                                                        /*}}}*/
 
 // strstrip - Remove white space from the front and back of a string   /*{{{*/
                                                                        /*}}}*/
 
 // strstrip - Remove white space from the front and back of a string   /*{{{*/


@@ -95,7 +97,7 @@ bool ParseQuoteWord(const char *&String,string &Res)
       return false;
    
    // Jump to the next word
       return false;
    
    // Jump to the next word

-   for (;*C != 0 && *C != ' '; C++)
+   for (;*C != 0 && isspace(*C) == 0; C++)

    {
       if (*C == '"')
       {
    {
       if (*C == '"')
       {


@@ -116,7 +118,7 @@ bool ParseQuoteWord(const char *&String,string &Res)
       {
         Tmp[0] = Start[1];
         Tmp[1] = Start[2];
       {
         Tmp[0] = Start[1];
         Tmp[1] = Start[2];

-        Tmp[3] = 0;
+        Tmp[2] = 0;

         *I = (char)strtol(Tmp,0,16);
         Start += 3;
         continue;
         *I = (char)strtol(Tmp,0,16);
         Start += 3;
         continue;


@@ -131,7 +133,7 @@ bool ParseQuoteWord(const char *&String,string &Res)
    Res = Buffer;
    
    // Skip ending white space
    Res = Buffer;
    
    // Skip ending white space

-   for (;*C != 0 && *C == ' '; C++);
+   for (;*C != 0 && isspace(*C) != 0; C++);

    String = C;
    return true;
 }
    String = C;
    return true;
 }


@@ -198,6 +200,31 @@ string QuoteString(string Str,const char *Bad)
    return Res;
 }
                                                                        /*}}}*/
    return Res;
 }
                                                                        /*}}}*/

+// DeQuoteString - Convert a string from quoted from                    /*{{{*/
+// ---------------------------------------------------------------------
+/* This undoes QuoteString */
+string DeQuoteString(string Str)
+{
+   string Res;
+   for (string::iterator I = Str.begin(); I != Str.end(); I++)
+   {
+      if (*I == '%' && I + 2 < Str.end())
+      {
+        char Tmp[3];
+        Tmp[0] = I[1];
+        Tmp[1] = I[2];
+        Tmp[2] = 0;
+        Res += (char)strtol(Tmp,0,16);
+        I += 2;
+        continue;
+      }
+      else
+        Res += *I;
+   }
+   return Res;   
+}
+
+                                                                        /*}}}*/

 // SizeToStr - Convert a long into a human readable size               /*{{{*/
 // ---------------------------------------------------------------------
 /* A max of 4 digits are shown before conversion to the next highest unit. 
 // SizeToStr - Convert a long into a human readable size               /*{{{*/
 // ---------------------------------------------------------------------
 /* A max of 4 digits are shown before conversion to the next highest unit. 


@@ -214,7 +241,7 @@ string SizeToStr(double Size)
    
    /* bytes, KiloBytes, MegaBytes, GigaBytes, TeraBytes, PetaBytes, 
       ExaBytes, ZettaBytes, YottaBytes */
    
    /* bytes, KiloBytes, MegaBytes, GigaBytes, TeraBytes, PetaBytes, 
       ExaBytes, ZettaBytes, YottaBytes */

-   char Ext[] = {'b','k','M','G','T','P','E','Z','Y'};
+   char Ext[] = {'\0','k','M','G','T','P','E','Z','Y'};

    int I = 0;
    while (I <= 8)
    {
    int I = 0;
    while (I <= 8)
    {


@@ -456,6 +483,7 @@ int StringToBool(string Text,int Default = -1)
    if (strcasecmp(Text.c_str(),"no") == 0 ||
        strcasecmp(Text.c_str(),"false") == 0 ||
        strcasecmp(Text.c_str(),"without") == 0 ||
    if (strcasecmp(Text.c_str(),"no") == 0 ||
        strcasecmp(Text.c_str(),"false") == 0 ||
        strcasecmp(Text.c_str(),"without") == 0 ||

+       strcasecmp(Text.c_str(),"off") == 0 ||

        strcasecmp(Text.c_str(),"disable") == 0)
       return 0;
    
        strcasecmp(Text.c_str(),"disable") == 0)
       return 0;
    


@@ -463,6 +491,7 @@ int StringToBool(string Text,int Default = -1)
    if (strcasecmp(Text.c_str(),"yes") == 0 ||
        strcasecmp(Text.c_str(),"true") == 0 ||
        strcasecmp(Text.c_str(),"with") == 0 ||
    if (strcasecmp(Text.c_str(),"yes") == 0 ||
        strcasecmp(Text.c_str(),"true") == 0 ||
        strcasecmp(Text.c_str(),"with") == 0 ||

+       strcasecmp(Text.c_str(),"on") == 0 ||

        strcasecmp(Text.c_str(),"enable") == 0)
       return 1;
    
        strcasecmp(Text.c_str(),"enable") == 0)
       return 1;
    


@@ -501,6 +530,8 @@ bool ReadMessages(int Fd, vector<string> &List)
    while (1)
    {
       int Res = read(Fd,End,sizeof(Buffer) - (End-Buffer));
    while (1)
    {
       int Res = read(Fd,End,sizeof(Buffer) - (End-Buffer));

+      if (Res < 0 && errno == EINTR)
+        continue;

       
       // Process is dead, this is kind of bad..
       if (Res == 0)
       
       // Process is dead, this is kind of bad..
       if (Res == 0)


@@ -570,6 +601,30 @@ static int MonthConv(char *Month)
    }   
 }
                                                                        /*}}}*/
    }   
 }
                                                                        /*}}}*/

+// timegm - Internal timegm function if gnu is not available           /*{{{*/
+// ---------------------------------------------------------------------
+/* Ripped this evil little function from wget - I prefer the use of 
+   GNU timegm if possible as this technique will have interesting problems
+   with leap seconds, timezones and other.
+   
+   Converts struct tm to time_t, assuming the data in tm is UTC rather
+   than local timezone (mktime assumes the latter).
+   
+   Contributed by Roger Beeman <beeman@cisco.com>, with the help of
+   Mark Baushke <mdb@cisco.com> and the rest of the Gurus at CISCO. */
+#ifndef __USE_MISC        // glib sets this
+static time_t timegm(struct tm *t)
+{
+   time_t tl, tb;
+   
+   tl = mktime (t);
+   if (tl == -1)
+      return -1;
+   tb = mktime (gmtime (&tl));
+   return (tl <= tb ? (tl + (tl - tb)) : (tl - (tb - tl)));
+}
+#endif
+                                                                       /*}}}*/

 // StrToTime - Converts a string into a time_t                         /*{{{*/
 // ---------------------------------------------------------------------
 /* This handles all 3 populare time formats including RFC 1123, RFC 1036
 // StrToTime - Converts a string into a time_t                         /*{{{*/
 // ---------------------------------------------------------------------
 /* This handles all 3 populare time formats including RFC 1123, RFC 1036


@@ -611,6 +666,33 @@ bool StrToTime(string Val,time_t &Result)
    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 &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 = strtoul(S,&End,Base);
+   if (End == S)
+      return false;
+   
+   return true;
+}
+                                                                       /*}}}*/

 
 // URI::CopyFrom - Copy from an object                                 /*{{{*/
 // ---------------------------------------------------------------------
 
 // URI::CopyFrom - Copy from an object                                 /*{{{*/
 // ---------------------------------------------------------------------


@@ -640,7 +722,7 @@ void URI::CopyFrom(string U)
       Path = "/";
 
    // Now we attempt to locate a user:pass@host fragment
       Path = "/";
 
    // Now we attempt to locate a user:pass@host fragment

-   if (U[1] == '/' && U[2] == '/')
+   if (FirstColon[1] == '/' && FirstColon[2] == '/')

       FirstColon += 3;
    else
       FirstColon += 1;
       FirstColon += 3;
    else
       FirstColon += 1;


@@ -650,16 +732,17 @@ void URI::CopyFrom(string U)
    if (FirstColon > SingleSlash)
       FirstColon = SingleSlash;
    
    if (FirstColon > SingleSlash)
       FirstColon = SingleSlash;
    

-   // Search for the @
-   I = FirstColon;
+   // Find the colon...
+   I = FirstColon + 1;
+   if (I > SingleSlash)
+      I = SingleSlash;
+   for (; I < SingleSlash && *I != ':'; I++);
+   string::const_iterator SecondColon = I;
+   
+   // Search for the @ after the colon

    for (; I < SingleSlash && *I != '@'; I++);
    string::const_iterator At = I;
    
    for (; I < SingleSlash && *I != '@'; I++);
    string::const_iterator At = I;
    

-   // Colon in the @ section
-   I = FirstColon + 1;
-   for (; I < At && *I != ':'; I++);
-   string::const_iterator SecondColon = I;
-      

    // Now write the host and user/pass
    if (At == SingleSlash)
    {
    // Now write the host and user/pass
    if (At == SingleSlash)
    {


@@ -674,7 +757,7 @@ void URI::CopyFrom(string U)
         Password = string(U,SecondColon - U.begin() + 1,At - SecondColon - 1);
    }   
    
         Password = string(U,SecondColon - U.begin() + 1,At - SecondColon - 1);
    }   
    

-   // Now we parse off a pot number from the hostname
+   // Now we parse off a port number from the hostname

    Port = 0;
    string::size_type Pos = Host.rfind(':');
    if (Pos == string::npos)
    Port = 0;
    string::size_type Pos = Host.rfind(':');
    if (Pos == string::npos)