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#include <stdlib.h>
#include <sys/stat.h>
#include <syslog.h>
#include <iostream>
#include <cassert>
#include <stdexcept>
#include <openssl/md5.h>
#include "eyetil.h"
binary_t& binary_t::from_hex(const std::string& h) {
/* TODO: algorithmize */
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;
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) {
t[0]=*(hp++); t[1]=*(hp++);
*(oi++) = 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;
}
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);
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;
}
static void make_path_for_template(const std::string& p,mode_t m) {
struct stat st;
std::string pp;
for(std::string::size_type sl=p.find('/',1);
sl!=std::string::npos;
sl=p.find('/',sl+1)) {
if(stat( (pp=p.substr(0,sl)).c_str() ,&st)
|| !S_ISDIR(st.st_mode)) {
if(mkdir(pp.c_str(),m))
throw std::runtime_error("failed to mkdir()");
}
}
}
tmpdir_t::tmpdir_t(const std::string& dt) : dir(dt) {
make_path_for_template(dt,0777);
if(!mkdtemp((char*)dir.data()))
throw std::runtime_error("failed to mkdtmp()");
}
tmpdir_t::~tmpdir_t() {
assert(!dir.empty());
if(rmdir(dir.c_str())) {
syslog(LOG_WARNING,"Failed to remove '%s' directory",dir.c_str());
}
}
std::string tmpdir_t::get_file(const std::string& f) {
std::string::size_type ls = f.rfind('/');
return dir+'/'+(
(ls==std::string::npos)
? f
: f.substr(ls+1)
);
}
tarchive_t::tarchive_t(void *p,size_t s) : a(archive_read_new()), e(0) {
if(!a) throw std::runtime_error("failed to archive_read_new()");
if(archive_read_support_format_tar(a)) {
archive_read_finish(a);
throw std::runtime_error("failed to archive_read_support_format_tar()");
}
if(archive_read_open_memory(a,p,s)) {
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;
}
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