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#include <cstdio>
#include <cstdlib>
#include <arpa/inet.h>
#include "zlib.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <cstring>
#include <netdb.h>
#include <iostream>
#define BUFLEN 60000
// AMT: This code is a substitute of netcat command. The reason it is replaced
// is that netcat has limited buffer to 1024 bytes.
//
// TODO:: waith for server echo with timeout.
void getCompressedBuffer(const char* fname, Bytef** buffPtr, unsigned long& zippedSize) {
FILE* pFile = fopen(fname, "r");
if (pFile == nullptr) {
std::cerr << "Can't open " << fname << std::endl;
exit(1);
}
// obtain file size:
fseek(pFile, 0, SEEK_END);
unsigned int lSize = ftell(pFile);
rewind(pFile);
// allocate memory to contain the whole file:
void* buffer = malloc(sizeof(Bytef) * (lSize));
size_t result = fread(buffer, 1, lSize, pFile);
fclose(pFile);
if (!result) {
std::cerr << "Failed to read " << fname << std::endl;
exit(1);
}
//
// write a new buffer. First four bytes is integer with
// value of size of uncompressed data. Remaining content
// is compressed original buffer.
//
unsigned int deflatedSize = compressBound(lSize) + 4; // estimation
Bytef* deflatedBuff = (Bytef*)malloc(sizeof(Bytef) * (deflatedSize));
*((unsigned int*)deflatedBuff) = htonl(lSize);
//set buffer ptr
*buffPtr = deflatedBuff;
// compress buffer
zippedSize = deflatedSize;
compress(deflatedBuff + 4, &zippedSize, (const Bytef*)buffer, lSize);
zippedSize += 4;
free(buffer);
/*
printf("zipped size %d \n", (int)zippedSize);
FILE* pFileOut = fopen ( "myfile-compressed" , "wb" );
fwrite (deflatedBuff , 1 , zippedSize , pFileOut );
fclose(pFileOut);
*/
}
int main(int argc, char** argv) {
if (argc != 2) {
std::cerr << "Uasage: sendCrashReport <fileName>" << std::endl;
exit(1);
}
// socket creation
int sd = socket(AF_INET, SOCK_DGRAM, 0);
if (sd < 0) {
return 1;
}
// printf("bind port\n");
struct sockaddr_in cliAddr;
cliAddr.sin_family = AF_INET;
cliAddr.sin_addr.s_addr = htonl(INADDR_ANY);
cliAddr.sin_port = htons(0);
int rc = bind(sd, (struct sockaddr*)&cliAddr, sizeof(cliAddr));
if (rc < 0) {
std::cerr << "Can't bind port %d " << rc << std::endl;
exit(1);
}
// send data
struct hostent* h = gethostbyname("xrootd.t2.ucsd.edu");
if (!h) {
std::cerr << "Can't get gost ip \n";
exit(1);
}
struct sockaddr_in remoteServAddr;
remoteServAddr.sin_family = h->h_addrtype;
memcpy((char*)&remoteServAddr.sin_addr.s_addr, h->h_addr_list[0], h->h_length);
remoteServAddr.sin_port = htons(9699);
Bytef* buff;
unsigned long buffSize;
getCompressedBuffer(argv[1], &buff, buffSize);
sendto(sd, buff, buffSize, 0, (struct sockaddr*)&remoteServAddr, sizeof(remoteServAddr));
free(buff);
}
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