Programming

memset(recvgen,'\0',NSE_MAX_PACKET_RECV_SIZE);

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

#define NSE_MAX_PACKET_RECV_SIZE 1050

int
main(int argc, char *argv[])
{

        FILE *fpWriteFile;
        char *recvgen;
        char WriteFileName[1024];

        if (argc != 2)
                exit(1);
        strncpy(WriteFileName, argv[1], 1024);
        if (strlen(argv[1]) >= 1024)
                WriteFileName[1023] = '\0';
        fpWriteFile = fopen(WriteFileName,"wb+");
        if (fpWriteFile == NULL)
                exit(1);
        recvgen = (char *)malloc(sizeof(char)*NSE_MAX_PACKET_RECV_SIZE);
        if (recvgen == NULL)
                exit(1);
        fwrite (recvgen,NSE_MAX_PACKET_RECV_SIZE,1,fpWriteFile);
        exit (0);
}

cc -o file file.c
./file `perl -e 'print "A" x 10'` && echo $? -> OK: 0
./file `perl -e 'print "A" x 1024'` ; echo $? -> NOT OK (failing with filename too long): 1