tool to test RAW shellcode

[ShadowMaster]

I found this amazing tool, about ten minutes after I posted this. https://github.com/inquisb/shellcodeexec

But if you still want my version...

Here's a cute script to test RAW shellcode for you shellcode writers out there. (There's a reason this is in the expert's section.
Currently the script takes two options: -e to run the shellcode, and -p to print out working shellcode in hex format.

/*
Shellcode tester and printer for linux.
Idea from Buffer overflow attacks.
Input: raw shellcode in a file

Brought to you by: Shadow-Master

*/

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>

static void croak(const char *msg) {
        fprintf(stderr, "%s\n", msg);
        fflush(stderr);
}

static void usage(const char *prgnam) {
        fprintf(stderr, "\nCode Execution: %s -e <Code file>\n", prgnam);
        fprintf(stderr,"Code Printing: %s -p <Code file>\n\n", prgnam);
        fflush(stderr);
        exit(1);
}

static void barf(const char *msg) {
        perror(msg);
        exit(1);
}

int main(int argc, char **argv) {
        FILE *fp;
        void *code;
        int arg;
        int i;
        int l;
        int m = 15;

        struct stat sbuf;
        long flen;
        void (*fptr)(void);

        if(argc < 3) usage(argv[0]);
        if(stat(argv[2], &sbuf)) barf("Failed to stat file.");

        flen = (long) sbuf.st_size;
        if(!(code = malloc(flen))) barf("Failed to grab the required memory.");

        if(!(fp = fopen(argv[2], "rb"))) barf("Failed to open file.");
        if(fread(code, 1, flen, fp) != flen) barf("Failed to read file.");
        if(fclose(fp)) barf("Failed to close file.");

        while ((arg = getopt (argc, argv, "e:p:")) != -1){
                switch (arg){
                        case 'e':
                                croak("Calling Code...");
                                fptr = (void (*)(void)) code;
                                (*fptr)();
                                break;
                        case 'p':
                                printf("\n/* The following ShellCode is %d bytes long: */\n", flen);
                                printf("\nchar shellcode[] =\n");
                                l = m;
                                for(i = 0; i < flen; i++) {
                                        if(l >= m) {
                                                if(i) printf("\"\n");
                                                printf("\t\"");
                                                l = 0;
                                        }
                                        ++l;
                                        printf("\\x%02x", ((unsigned char *)code)[i]);
                                }
                                printf("\";\n\n\n");
                                break;
                        default :
                                usage(argv[0]);
                        }
                }
        return 0;
}

windows port to be compiled with mingw under wine:

/*
Shellcode tester and printer for linux.
Idea from Buffer overflow attacks.
Input: raw shellcode in a file

Brought to you by: Shadow-Master

*/

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>

static void croak(const char *msg) {
        fprintf(stderr, "%s\n", msg);
        fflush(stderr);
}

static void usage(const char *prgnam) {
        fprintf(stderr, "\nCode Execution: %s -e <Code file>\n", prgnam);
        fprintf(stderr,"Code Printing: %s -p <Code file>\n\n", prgnam);
        fflush(stderr);
        exit(1);
}

static void barf(const char *msg) {
        perror(msg);
        exit(1);
}

int main(int argc, char **argv) {
        FILE *fp;
        void *code;
        int arg;
        int i;
        int l;
        int m = 15;

        struct stat sbuf;
        long flen;
        void (*fptr)(void);

        if(argc < 3) usage(argv[0]);
        if(stat(argv[2], &sbuf)) barf("Failed to stat file.");

        flen = (long) sbuf.st_size;
        if(!(code = malloc(flen))) barf("Failed to grab the required memory.");

        if(!(fp = fopen(argv[2], "rb"))) barf("Failed to open file.");
        if(fread(code, 1, flen, fp) != flen) barf("Failed to read file.");
        if(fclose(fp)) barf("Failed to close file.");
		
		switch (argv[1][1]) {
			case 'e':
				croak("Calling Code...");
				fptr = (void (*)(void)) code;
				(*fptr)();
				break;
			case 'p':
				printf("\n/* The following ShellCode is %d bytes long: */\n", flen);
				printf("\nchar shellcode[] =\n");
				l = m;
				for(i = 0; i < flen; i++) {
						if(l >= m) {
								if(i) printf("\"\n");
								printf("\t\"");
								l = 0;
						}
						++l;
						printf("\\x%02x", ((unsigned char *)code)[i]);
				}
				printf("\";\n\n\n");
				break;
			default:
				usage(argv[0]);
		}
        return 0;
}

If you have any requests or want to add any options feel free.