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authorMichael Vogt <michael.vogt@ubuntu.com>2011-07-28 10:21:58 +0200
committerMichael Vogt <michael.vogt@ubuntu.com>2011-07-28 10:21:58 +0200
commitc6ec544822a6a5db9f8a507b08381f19c8787761 (patch)
treef4cf7c2f2a21d29642bf13e87b792cbb9df688a3 /apt-pkg/contrib/hashsum.cc
parentf448075d89fedde182e6c2a59c89808e403b7f66 (diff)
parenta2cba9cca24762c090ee6988f14ae40f92a6441f (diff)
merged from debian-experimental
Diffstat (limited to 'apt-pkg/contrib/hashsum.cc')
-rw-r--r--apt-pkg/contrib/hashsum.cc27
1 files changed, 27 insertions, 0 deletions
diff --git a/apt-pkg/contrib/hashsum.cc b/apt-pkg/contrib/hashsum.cc
new file mode 100644
index 000000000..728747d7a
--- /dev/null
+++ b/apt-pkg/contrib/hashsum.cc
@@ -0,0 +1,27 @@
+// Cryptographic API Base
+
+#include <unistd.h>
+#include "hashsum_template.h"
+
+// Summation::AddFD - Add content of file into the checksum /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool SummationImplementation::AddFD(int const Fd, unsigned long Size) {
+ unsigned char Buf[64 * 64];
+ int Res = 0;
+ int ToEOF = (Size == 0);
+ while (Size != 0 || ToEOF)
+ {
+ unsigned n = sizeof(Buf);
+ if (!ToEOF) n = min(Size,(unsigned long)n);
+ Res = read(Fd, Buf, n);
+ if (Res < 0 || (!ToEOF && (unsigned) Res != n)) // error, or short read
+ return false;
+ if (ToEOF && Res == 0) // EOF
+ break;
+ Size -= Res;
+ Add(Buf,Res);
+ }
+ return true;
+}
+ /*}}}*/