MyString
MultiLogFiles::readFileToString(const MyString &strFilename)
{
dprintf( D_FULLDEBUG, "MultiLogFiles::readFileToString(%s)\n",
strFilename.Value() );
FILE *pFile = safe_fopen_wrapper_follow(strFilename.Value(), "r");
if (!pFile) {
dprintf( D_ALWAYS, "MultiLogFiles::readFileToString: "
"safe_fopen_wrapper_follow(%s) failed with errno %d (%s)\n", strFilename.Value(),
errno, strerror(errno) );
return "";
}
if ( fseek(pFile, 0, SEEK_END) != 0 ) {
dprintf( D_ALWAYS, "MultiLogFiles::readFileToString: "
"fseek(%s) failed with errno %d (%s)\n", strFilename.Value(),
errno, strerror(errno) );
fclose(pFile);
return "";
}
int iLength = ftell(pFile);
if ( iLength == -1 ) {
dprintf( D_ALWAYS, "MultiLogFiles::readFileToString: "
"ftell(%s) failed with errno %d (%s)\n", strFilename.Value(),
errno, strerror(errno) );
fclose(pFile);
return "";
}
MyString strToReturn;
strToReturn.reserve_at_least(iLength);
fseek(pFile, 0, SEEK_SET);
char *psBuf = new char[iLength+1];
/* We now clear the buffer to ensure there will be a NULL at the
end of our buffer after the fread(). Why no just do
psBuf[iLength] = 0 ?
Because on Win32, iLength may not point to the end of
the buffer because \r\n are converted into \n because
the file is opened in text mode.
*/
memset(psBuf,0,iLength+1);
int ret = fread(psBuf, 1, iLength, pFile);
if (ret == 0) {
dprintf( D_ALWAYS, "MultiLogFiles::readFileToString: "
"fread failed with errno %d (%s)\n",
errno, strerror(errno) );
fclose(pFile);
delete [] psBuf;
return "";
}
fclose(pFile);
strToReturn = psBuf;
delete [] psBuf;
return strToReturn;
}
static bool docker_add_env_walker (void*pv, const MyString &var, const MyString &val) {
ArgList* runArgs = (ArgList*)pv;
MyString arg;
arg.reserve_at_least(var.length() + val.length() + 2);
arg = var;
arg += "=";
arg += val;
runArgs->AppendArg("-e");
runArgs->AppendArg(arg);
return true; // true to keep iterating
}
