1 files changed, 5 insertions, 5 deletions

diff --git a/src/eyetil.cc b/src/eyetil.cc
index 2e6ab7e..11e2fb7 100644
--- a/src/eyetil.cc
+++ b/src/eyetil.cc
@@ -1,89 +1,89 @@
 #include <stdlib.h>
 #include <sys/stat.h>
 #include <syslog.h>
 #include <iostream>
 #include <cassert>
 #include <stdexcept>
 #include <algorithm>
 #include <numeric>
 #include <openssl/md5.h>
 #include "eyetil.h"
 
 #include "config.h"
 #ifdef HAVE_LIBUUID
 # include <uuid/uuid.h>
 #endif
 
 binary_t& binary_t::from_hex(const std::string& h) {
     std::string::size_type hs = h.length();
     if(hs&1)
         throw std::runtime_error("odd number of characters in hexadecimal number");
-    int rvs = hs>>1;
+    size_t rvs = hs>>1;
     resize(rvs);
     const unsigned char *hp = (const unsigned char*)h.data();
     iterator oi=begin();
     char t[3] = { 0,0,0 };
-    for(int i=0;i<rvs;++i) {
+    for(size_t i=0;i<rvs;++i) {
         t[0]=*(hp++); t[1]=*(hp++);
-        *(oi++) = strtol(t,0,16);
+        *(oi++) = static_cast<binary_t::value_type>(0xff&strtol(t,0,16));
     }
     return *this;
 }
 
 binary_t& binary_t::from_data(const void *d,size_t s) {
     resize(s);
     std::copy((const unsigned char*)d,(const unsigned char *)d+s,
             begin() );
     return *this;
 }
 
 binary_t& binary_t::make_nonce() {
 #ifdef HAVE_LIBUUID
     uuid_t uuid;
     uuid_generate(uuid);
     from_data((unsigned char*)uuid,sizeof(uuid));
 #else
     resize(16);
     std::generate_n(begin(),16,rand);
 #endif /* HAVE_LIBUUID */
     return *this;
 }
 
 std::string binary_t::hex() const {
     std::string rv;
     rv.reserve((size()<<1)+1);
     char t[3] = {0,0,0};
     for(const_iterator i=begin(),ie=end();i!=ie;++i) {
-        int rc = snprintf(t,sizeof(t),"%02x",*i);
+        size_t rc = snprintf(t,sizeof(t),"%02x",*i);
         assert(rc<sizeof(t));
         rv += t;
     }
     return rv;
 }
 
 binary_t binary_t::md5() const {
     binary_t rv(MD5_DIGEST_LENGTH);
     if(!MD5(
                 (const unsigned char*)&(front()),size(),
                 (unsigned char*)&(rv.front()) ))
         throw std::runtime_error("failed to md5()");
     return rv;
 }
 
 void md5_digester::init() {
     if(!MD5_Init(&ctx)) throw std::runtime_error("failed to MD5_Init()");
 }
 void md5_digester::update(const void *d,size_t l) {
     if(!MD5_Update(&ctx,d,l)) throw std::runtime_error("failed to MD5_Update()");
 }
 binary_t md5_digester::final() {
     binary_t rv(MD5_DIGEST_LENGTH);
     if(!MD5_Final((unsigned char*)&(rv.front()), &ctx))
         throw std::runtime_error("failed to MD5_Final()");
     return rv;
 }
 
 
 static void make_path_for_template(const std::string& p,mode_t m) {
     struct stat st;
     std::string pp;
@@ -129,45 +129,45 @@ tarchive_t::tarchive_t(void *p,size_t s) : a(archive_read_new()), e(0) {
         archive_read_finish(a);
         throw std::runtime_error("failed to archive_read_open_memory()");
     }
 }
 tarchive_t::~tarchive_t() {
     assert(a);
     archive_read_finish(a);
 }
 
 bool tarchive_t::read_next_header() {
     assert(a);
     return archive_read_next_header(a,&e)==ARCHIVE_OK;
 }
 
 std::string tarchive_t::entry_pathname() {
     assert(a); assert(e);
     return archive_entry_pathname(e);
 }
 
 bool tarchive_t::read_data_into_fd(int fd) {
     assert(a);
     return archive_read_data_into_fd(a,fd)==ARCHIVE_OK;
 }
 
 #pragma pack(1)
 struct block512_t {
     enum { words = 512 / sizeof(uint16_t) };
     uint16_t data[words];
 
     static uint16_t tcpcksum(block512_t& data) {
         uint32_t sum = std::accumulate(data.data,data.data+words,0);
         while(uint32_t hw = sum>>16) sum = (sum&0xffff)+hw;
-        return ~sum;
+        return 0xffff&~sum;
     }
 
 };
 #pragma pack()
 
 binary_t integrity_digest(const void *ptr,size_t size,const std::string& ukey) {
     md5_digester rv;
     std::transform( (block512_t*)ptr, ((block512_t*)ptr)+size/sizeof(block512_t),
             rv.updater<uint16_t>(), block512_t::tcpcksum );
     rv.update( binary_t(ukey) );
     return rv.final();
 }