1 files changed, 63 insertions, 0 deletions
diff --git a/util.c b/util.c
new file mode 100644
index 0000000..d6890d6
--- /dev/null
+++ b/util.c
@@ -0,0 +1,63 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "util.h"
+
+
+char* copystring(const char *s){
+	size_t len=strlen(s);
+	char *s2=malloc(len+1,char);
+	memcpy(s2,s,len+1);
+	return s2;
+}
+
+char* copybufasstring(const char *b,int length){
+	char *s=malloc(length+1,char);
+	memcpy(s,b,length);
+	s[length]='\0';
+	return s;
+}
+
+
+__attribute__((noreturn)) void outofmem(void){
+	fprintf(stderr,"OUT OF MEMORY!\n");
+	exit(2);
+}
+
+
+void* malloccheck(size_t n){
+	void *p=mallocreal(n);
+	if(!p)outofmem();
+	return p;
+}
+
+void* calloccheck(size_t n,size_t s){
+	void *p=callocreal(n,s);
+	if(!p)outofmem();
+	return p;
+}
+
+void* realloccheck(void *p,size_t n){
+	p=reallocreal(p,n);
+	if(!p)outofmem();
+	return p;
+}
+
+
+
+#undef malloc
+#undef calloc
+#undef realloc
+
+void* mallocreal(size_t n){
+	return malloc(n);
+}
+
+void* callocreal(size_t n,size_t s){
+	return calloc(n,s);
+}
+
+void* reallocreal(void *p,size_t n){
+	return realloc(p,n);
+}