Quick and dirty program for finding binary sequences from one file in another

bincmp.c

#include <stdio.h>               
#include <sys/stat.h>                            
#include <stdlib.h>                                         
#include <string.h>
                                                            
#define LOADOFFSET 0x40000000 // RAM is mapped to 0x40000000, added to account for this                                   
                
int main(int argc, char **argv) {
    FILE *needle;
    FILE *haystack;                    
    int search_size;                    
    int phrase_size;
    struct stat sfile_info;         
                                     
    if (argc != 5) {
        printf("Usage: %s <needle> <haystack> <needle offset> <needle size>\n", argv[0]);
        exit(-1);                              
    }       
                                         
    char *search_phrase = argv[1];       
    char *search_space = argv[2];
    int needle_offset = strtol(argv[3], NULL, 0);
    int search_phrase_size_limit = strtol(argv[4], NULL, 0);
                                           
    if (search_phrase_size_limit < 0 || needle_offset < 0) {
        puts("Needle length and length must be greater than 0.");
        exit(1);                             
    }                                             

    needle = fopen(search_phrase, "r");    
    haystack = fopen(search_space, "r");                               
                          
    stat(search_space, &sfile_info);                                              
    search_size = sfile_info.st_size;
     
    if (search_phrase_size_limit > 0) {
        phrase_size = search_phrase_size_limit;
    } else {
        stat(search_phrase, &sfile_info);
        phrase_size = sfile_info.st_size;
    }

    char *needle_buf = malloc(phrase_size);
    fseek(needle, needle_offset, SEEK_SET);
    fread(needle_buf, 1, phrase_size, needle);

    char *haystack_buf = malloc(search_size);
    fread(haystack_buf, 1, search_size, haystack);

    for (int i = 0; i < search_size; ++i) {
        int status = memcmp(needle_buf, haystack_buf + i, phrase_size);
        if (status == 0) {
            printf("found matching sequence in file %s at offset: 0x%08x\n", search_space, i + LOADOFFSET);
        }
    }
}