Get rid of exit() in hashcat.c

include/hashcat.h

@@ -6,9 +6,9 @@
 #ifndef _HASHCAT_H
 #define _HASHCAT_H
 
-int hashcat (hashcat_ctx_t *hashcat_ctx, char *install_folder, char *shared_folder, int argc, char **argv, const int comptime);
+int  hashcat (hashcat_ctx_t *hashcat_ctx, char *install_folder, char *shared_folder, int argc, char **argv, const int comptime);
 
-void hashcat_ctx_init    (hashcat_ctx_t *hashcat_ctx, void (*event) (const u32, struct hashcat_ctx *, const void *, const size_t));
+int  hashcat_ctx_init    (hashcat_ctx_t *hashcat_ctx, void (*event) (const u32, struct hashcat_ctx *, const void *, const size_t));
 void hashcat_ctx_destroy (hashcat_ctx_t *hashcat_ctx);
 
 #endif // _HASHCAT_H

src/hashcat.c

@@ -55,13 +55,13 @@
 extern const u32 DEFAULT_BENCHMARK_ALGORITHMS_CNT;
 extern const u32 DEFAULT_BENCHMARK_ALGORITHMS_BUF[];
 
-void hashcat_ctx_init (hashcat_ctx_t *hashcat_ctx, void (*event) (const u32, struct hashcat_ctx *, const void *, const size_t))
+int hashcat_ctx_init (hashcat_ctx_t *hashcat_ctx, void (*event) (const u32, struct hashcat_ctx *, const void *, const size_t))
 {
   if (event == NULL)
   {
     fprintf (stderr, "Event callback function is mandatory\n");
 
-    exit (-1);
+    return -1;
   }
 
   hashcat_ctx->event = event;
@@ -92,6 +92,8 @@ void hashcat_ctx_init (hashcat_ctx_t *hashcat_ctx, void (*event) (const u32, str
   hashcat_ctx->user_options_extra = (user_options_extra_t *)  hcmalloc (hashcat_ctx, sizeof (user_options_extra_t));
   hashcat_ctx->user_options       = (user_options_t *)        hcmalloc (hashcat_ctx, sizeof (user_options_t));
   hashcat_ctx->wl_data            = (wl_data_t *)             hcmalloc (hashcat_ctx, sizeof (wl_data_t));
+
+  return 0;
 }
 
 void hashcat_ctx_destroy (hashcat_ctx_t *hashcat_ctx)

src/main.c

@@ -489,7 +489,9 @@ int main (int argc, char **argv)
 
   hashcat_ctx_t *hashcat_ctx = (hashcat_ctx_t *) malloc (sizeof (hashcat_ctx_t));
 
-  hashcat_ctx_init (hashcat_ctx, event);
+  const int rc_hashcat_init = hashcat_ctx_init (hashcat_ctx, event);
+
+  if (rc_hashcat_init == -1) return -1;
 
   // initialize the session via getops for commandline use or
   // alternatively you can set the user_options directly