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1 files changed, 53 insertions, 0 deletions

diff --git a/src/libs/utils.c b/src/libs/utils.c
new file mode 100644
index 0000000..75b5661
--- /dev/null
+++ b/src/libs/utils.c
@@ -0,0 +1,53 @@
+#include "utils.h"
+
+void memcpy(u8 *dst, u8 *src, u32 size){
+  for(u32 i=0;i<size;i++){
+	((u8*)(dst))[i]=((u8*)(src))[i];
+  }
+}
+
+void memset(u8 *start, u8 value, u32 size){
+  for(u32 i=0;i<size;i++){
+	((u8*)(start))[i]=value;
+  }
+}
+
+int modulo(int dividend, int divisor){
+  while((dividend-divisor)>0){dividend-=divisor;}
+  return dividend;
+}
+
+int strlen(char * cp)
+{
+  int len=0;
+  while( cp[len++]) ;
+  return len - 1 ; //because it counted the zero which we don't want.
+}
+
+int wordlen(char *s)
+{
+  int len=0;
+  while( *s!='\n' && *s!='\0' && *s!=' '){ s++; }
+  return len - 1 ; //because it counted the zero which we don't want.
+}
+
+u8 strcmp(char *str1, char*str2){
+  while( *str1!='\0' && *str2!='\0'){
+	if(*str1!=*str2)
+	  return 1;
+	str1++;
+	str2++;
+  }
+  return *str1 == *str2; // Ensure both final char are \0
+}
+
+u8 strncmp(char *str1, char *str2, int n){
+  for(int i=0;i<n;i++){
+	if(str1[i] == '\0' || str2[i] == '\0')
+	  break;
+	if(str1[i] != str2[i])
+	  return 1;
+  }
+
+  return *str1 != *str2;
+}