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-rw-r--r--apt-pkg/contrib/strutl.cc18
1 files changed, 18 insertions, 0 deletions
diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index 987f4c3a4..daf87c87f 100644
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -968,6 +968,24 @@ 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 Len)
+{
+ int i;
+ if ((Str[0] & 0x80) == 0)
+ return false;
+ else
+ {
+ Res = Str[0] & 0x7F;
+ for(i=1; i<Len; i++)
+ Res = (Res<<8) + Str[i];
+ return true;
+ }
+}
+ /*}}}*/
// HexDigit - Convert a hex character into an integer /*{{{*/
// ---------------------------------------------------------------------
/* Helper for Hex2Num */