fix partial (206 and 416) support in https

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

diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index 99efa8d98053bb1f5f0b9d0206685ff809585e4d..0955b69f79a67f538e1af0f59359f543cc3f5bb5 100644 (file)
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -23,6 +23,7 @@
 
 #include <ctype.h>
 #include <string.h>
+#include <sstream>
 #include <stdio.h>
 #include <algorithm>
 #include <unistd.h>
@@ -116,7 +117,13 @@ char *_strstrip(char *String)
 
    if (*String == 0)
       return String;
-
+   return _strrstrip(String);
+}
+                                                                       /*}}}*/
+// strrstrip - Remove white space from the back of a string    /*{{{*/
+// ---------------------------------------------------------------------
+char *_strrstrip(char *String)
+{
    char *End = String + strlen(String) - 1;
    for (;End != String - 1 && (*End == ' ' || *End == '\t' || *End == '\n' ||
                               *End == '\r'); End--);
@@ -751,7 +758,8 @@ bool ReadMessages(int Fd, vector<string> &List)
       // Look for the end of the message
       for (char *I = Buffer; I + 1 < End; I++)
       {
-        if (I[0] != '\n' || I[1] != '\n')
+        if (I[1] != '\n' ||
+              (I[0] != '\n' && strncmp(I, "\r\n\r\n", 4) != 0))
            continue;
         
         // Pull the message out
@@ -759,7 +767,7 @@ bool ReadMessages(int Fd, vector<string> &List)
         PartialMessage += Message;
 
         // Fix up the buffer
-        for (; I < End && *I == '\n'; I++);
+        for (; I < End && (*I == '\n' || *I == '\r'); ++I);
         End -= I-Buffer;        
         memmove(Buffer,I,End-Buffer);
         I = Buffer;
@@ -935,6 +943,8 @@ bool StrToTime(const string &Val,time_t &Result)
    Tm.tm_isdst = 0;
    if (Month[0] != 0)
       Tm.tm_mon = MonthConv(Month);
+   else
+      Tm.tm_mon = 0; // we don't have a month, so pick something
    Tm.tm_year -= 1900;
    
    // Convert to local time and then to GMT
@@ -1168,34 +1178,50 @@ unsigned long RegexChoice(RxChoiceList *Rxs,const char **ListBegin,
    return Hits;
 }
                                                                        /*}}}*/
-// ioprintf - C format string outputter to C++ iostreams               /*{{{*/
+// {str,io}printf - C format string outputter to C++ strings/iostreams /*{{{*/
 // ---------------------------------------------------------------------
 /* This is used to make the internationalization strings easier to translate
    and to allow reordering of parameters */
-void ioprintf(ostream &out,const char *format,...) 
+static bool iovprintf(ostream &out, const char *format,
+                     va_list &args, ssize_t &size) {
+   char *S = (char*)malloc(size);
+   ssize_t const n = vsnprintf(S, size, format, args);
+   if (n > -1 && n < size) {
+      out << S;
+      free(S);
+      return true;
+   } else {
+      if (n > -1)
+        size = n + 1;
+      else
+        size *= 2;
+   }
+   free(S);
+   return false;
+}
+void ioprintf(ostream &out,const char *format,...)
 {
    va_list args;
-   va_start(args,format);
-   
-   // sprintf the description
-   char S[4096];
-   vsnprintf(S,sizeof(S),format,args);
-   out << S;
+   ssize_t size = 400;
+   while (true) {
+      va_start(args,format);
+      if (iovprintf(out, format, args, size) == true)
+        return;
+      va_end(args);
+   }
 }
-                                                                       /*}}}*/
-// strprintf - C format string outputter to C++ strings                /*{{{*/
-// ---------------------------------------------------------------------
-/* This is used to make the internationalization strings easier to translate
-   and to allow reordering of parameters */
-void strprintf(string &out,const char *format,...) 
+void strprintf(string &out,const char *format,...)
 {
    va_list args;
-   va_start(args,format);
-   
-   // sprintf the description
-   char S[4096];
-   vsnprintf(S,sizeof(S),format,args);
-   out = string(S);
+   ssize_t size = 400;
+   std::ostringstream outstr;
+   while (true) {
+      va_start(args,format);
+      if (iovprintf(outstr, format, args, size) == true)
+        break;
+      va_end(args);
+   }
+   out = outstr.str();
 }
                                                                        /*}}}*/
 // safe_snprintf - Safer snprintf                                      /*{{{*/
@@ -1209,12 +1235,12 @@ char *safe_snprintf(char *Buffer,char *End,const char *Format,...)
    va_list args;
    int Did;
 
-   va_start(args,Format);
-
    if (End <= Buffer)
       return End;
-
+   va_start(args,Format);
    Did = vsnprintf(Buffer,End - Buffer,Format,args);
+   va_end(args);
+
    if (Did < 0 || Buffer + Did > End)
       return End;
    return Buffer + Did;
@@ -1229,7 +1255,7 @@ string StripEpoch(const string &VerStr)
       return VerStr;
    return VerStr.substr(i+1);
 }
-
+                                                                       /*}}}*/
 // tolower_ascii - tolower() function that ignores the locale          /*{{{*/
 // ---------------------------------------------------------------------
 /* This little function is the most called method we have and tries
@@ -1267,14 +1293,26 @@ bool CheckDomainList(const string &Host,const string &List)
    return false;
 }
                                                                        /*}}}*/
-// DeEscapeString - unescape (\0XX and \xXX) from a string             /*{{{*/
+// strv_length - Return the length of a NULL-terminated string array   /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+size_t strv_length(const char **str_array)
+{
+   size_t i;
+   for (i=0; str_array[i] != NULL; i++)
+      /* nothing */
+      ;
+   return i;
+}
+
+// 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;
+   string::const_iterator it;
+   string output;
    for (it = input.begin(); it != input.end(); ++it)
    {
       // just copy non-escape chars
@@ -1460,9 +1498,12 @@ URI::operator string()
           
       if (User.empty() == false)
       {
-        Res +=  User;
+        // FIXME: Technically userinfo is permitted even less
+        // characters than these, but this is not conveniently
+        // expressed with a blacklist.
+        Res += QuoteString(User, ":/?#[]@");
         if (Password.empty() == false)
-           Res += ":" + Password;
+           Res += ":" + QuoteString(Password, ":/?#[]@");
         Res += "@";
       }
       
@@ -1501,7 +1542,6 @@ string URI::SiteOnly(const string &URI)
    U.User.clear();
    U.Password.clear();
    U.Path.clear();
-   U.Port = 0;
    return U;
 }
                                                                        /*}}}*/
@@ -1513,7 +1553,6 @@ string URI::NoUserPassword(const string &URI)
    ::URI U(URI);
    U.User.clear();
    U.Password.clear();
-   U.Port = 0;
    return U;
 }
                                                                        /*}}}*/