I have been using C for a couple of years now and I always thought about writing a small post about C tricks I learnt over the years, and here I am. This morning I basically came acros a website showing a few C tricks that I already used and I finally got the inspiration […]
Also tagged programming, trickYesterday we where still working on some attacks on our bench test and we tried some exploits on IP phones that we found on the internet. Most of them where making DOS or DDOS on the phones, this means that the phones were basically freezing. Then we made some modification to a C UDP flooder […]
Also tagged 3825, 3845, 7940, cisco, ddos, ephone, flood, hack, Security, udp.c, voipThis code was just a challenge, I wanted to create a simple image file with BMP headers. The following code simply generate pink pixel . There is actually a pixel on this post somewhere there —>
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#include int main(void){ FILE *f; int filesize = 54 + 3*1*1; unsigned char bmpfileheader[14] = {'B','M', 0,0,0,0, 0,0,0,0, 54,0,0,0}; unsigned char bmpinfoheader[40] = {40,0,0,0, 0,0,0,0, 0,0,0,0, 1,0, 24,0}; unsigned char bmpcontent[6] = {0,0,255}; unsigned char bmppad[3] = {0,0,0}; /* Construct header with filesize part */ bmpfileheader[ 2] = (unsigned char)(filesize ); bmpfileheader[ 3] = (unsigned char)(filesize>> 8); bmpfileheader[ 4] = (unsigned char)(filesize>>16); bmpfileheader[ 5] = (unsigned char)(filesize>>24); /* Construct header with width and height part */ bmpinfoheader[ 4] = (unsigned char)( 1 ); bmpinfoheader[ 8] = (unsigned char)( 1 ); f = fopen("test.bmp","wb"); fwrite(bmpfileheader,1,14,f); fwrite(bmpinfoheader,1,40,f); fwrite(bmpcontent,3,6,f); fclose(f); return 1; } |
The code is pretty simple, however has not been commented, for more information have a look to the […]
Also tagged bmp, image, pixel, programming, red, useless
