From: Bill Lash <william.lash@gmail.com>
Date: Thu, 27 Sep 2018 00:55:45 +0000 (-0500)
Subject: Add my_strndup() api
X-Git-Url: https://scope-eye.net/git/?a=commitdiff_plain;h=6d161fb8eedb1257a6c244e6a37451bebab6ead4;p=liskon_frotz.git

Add my_strndup() api

Provide an implementation of strndup that only requires malloc
---

diff --git a/src/dumb/dumb_frotz.h b/src/dumb/dumb_frotz.h
index 0be1177..89fa887 100644
--- a/src/dumb/dumb_frotz.h
+++ b/src/dumb/dumb_frotz.h
@@ -17,6 +17,7 @@
 #include <time.h>
 
 extern char *my_strdup(char *);
+extern char *my_strndup(char *, size_t);
 
 /* from ../common/setup.h */
 extern f_setup_t f_setup;
diff --git a/src/dumb/dumb_init.c b/src/dumb/dumb_init.c
index d154107..9b8f74f 100644
--- a/src/dumb/dumb_init.c
+++ b/src/dumb/dumb_init.c
@@ -116,7 +116,7 @@ void os_process_arguments(int argc, char *argv[])
 	  case 'P': f_setup.piracy = 1; break;
 	case 'p': plain_ascii = 1; break;
 	case 'r': dumb_handle_setting(zoptarg, FALSE, TRUE); break;
-	case 'R': f_setup.restricted_path = strndup(zoptarg, PATH_MAX); break;
+	case 'R': f_setup.restricted_path =  my_strndup(zoptarg, PATH_MAX); break;
 	case 's': user_random_seed = atoi(zoptarg); break;
 	  case 'S': f_setup.script_cols = atoi(zoptarg); break;
 	case 't': user_tandy_bit = 1; break;
@@ -304,6 +304,24 @@ char *my_strdup(char *src)
 	return str;
 }
 
+char *my_strndup(char *src, size_t n)
+{
+	char *str;
+	char *p;
+	int len = 0;
+
+	while (src[len] && len < n)
+		len++;
+	str = malloc(len + 1);
+	p = str;
+	while (len--)
+	{
+		*p++ = *src++;
+	}
+	*p = '\0';
+	return str;
+}
+
 static void print_version(void)
 {
     printf("FROTZ V%s\t", GIT_TAG);