1 files changed, 72 insertions, 0 deletions
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..07b9864
--- /dev/null
+++ b/main.c
@@ -0,0 +1,72 @@
+#include "reloc.h"
+
+
+void show_version() {
+    printf("%s\n", VERSION);
+}
+
+
+int main(int argc, char *argv[]) {
+    char *program = argv[0];
+    char *program_relative = strrchr(program, DIRSEP);
+    if (program_relative) {
+        program = program_relative + 1;
+    }
+
+    for (int i = 0; i < argc; i++) {
+        if (!strcmp(argv[i], "--version") || !strcmp(argv[i], "-V")) {
+            show_version();
+            exit(0);
+        }
+    }
+
+    if (argc < 5) {
+        printf("usage: %s [-V] <str1> <str2> <input_file> <output_file>\n"
+               "\n"
+               "Options:\n"
+               "--version (-V) - Display version and exit\n"
+               "\n"
+               "Positional arguments:\n"
+               "str1           - Search string\n"
+               "str2           - Replacement string\n"
+               "input_file     - Input file name\n"
+               "output_file    - Output file name\n"
+               "\n"
+               "Example:\n"
+               "%s /original/string /new/string input.bin output.bin\n"
+               "\n", program, program);
+        exit(1);
+    }
+
+    char *needle = strdup(argv[1]);
+    char *replacement = strdup(argv[2]);
+    char *input_file = strdup(argv[3]);
+    char *output_file = strdup(argv[4]);
+    RelocData *info = reloc_read(input_file);
+    size_t records = 0;
+
+    for (size_t i = 0; i < info->size; i++) {
+        RelocMatch *match = NULL;
+        if (!(match = reloc_match(&info->data[i], needle))) {
+            // No match found
+            continue;
+        }
+        // Replace string
+        reloc_replace(match, replacement);
+        free(match);
+        records++;
+    }
+
+    // Write output file to disk
+    reloc_write(info, output_file);
+
+    // Report number of strings processed
+    printf(SIZE_T_FMT"\n", records);
+
+    free(needle);
+    free(replacement);
+    free(input_file);
+    free(output_file);
+    reloc_deinit_data(info);
+    return 0;
+}