X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/4d8d8112bb2bdee0f0e3cb46a6677e9fa35d791a..cc26da01ef43686d67959ef080e5492410d20e4e:/apt-pkg/contrib/strutl.cc

diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index 987f4c3a4..2e2bb5ebc 100644
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -968,6 +968,23 @@ bool StrToNum(const char *Str,unsigned long &Res,unsigned Len,unsigned Base)
    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 */
@@ -1174,6 +1191,15 @@ char *safe_snprintf(char *Buffer,char *End,const char *Format,...)
    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		/*{{{*/
 // ---------------------------------------------------------------------