diff --git a/libmaxsi/c/hsrc/string.h b/libmaxsi/c/hsrc/string.h
index a65b6e54..25b26c47 100644
--- a/libmaxsi/c/hsrc/string.h
+++ b/libmaxsi/c/hsrc/string.h
@@ -37,12 +37,14 @@ int memcmp(const void*, const void*, size_t);
 void* memcpy(void* restrict, const void* restrict, size_t);
 void* memset(void*, int, size_t);
 char* strcat(char* restrict, const char* restrict);
+char* strchr(const char*, int);
 int strcmp(const char*, const char*);
 size_t strcspn(const char*, const char*);
 char* strcpy(char* restrict, const char* restrict);
 char* strerror(int);
 size_t strlen(const char*);
 int strncmp(const char*, const char*, size_t);
+char* strrchr(const char*, int);
 size_t strspn(const char*, const char*);
 char* strtok(char* restrict, const char* restrict);
 char* strtok_r(char* restrict, const char* restrict, char** restrict);
@@ -54,7 +56,6 @@ void* memchr(const void*, int, size_t);
 void* memmove(void*, const void*, size_t);
 char* stpcpy(char* restrict, const char* restrict);
 char* stpncpy(char* restrict, const char* restrict, size_t);
-char* strchr(const char*, int);
 int strcoll(const char*, const char*);
 int strcoll_l(const char*, const char*, locale_t);
 char* strdup(const char*);
@@ -65,13 +66,16 @@ char* strncpy(char* restrict, const char* restrict, size_t);
 char* strndup(const char*, size_t);
 size_t strnlen(const char*, size_t);
 char* strpbrk(const char*, const char*);
-char* strrchr(const char*, int);
 char* strsignal(int);
 char* strstr(const char*, const char*);
 size_t strxfrm(char* restrict, const char* restrict, size_t);
 size_t strxfrm_l(char* restrict, const char* restrict, size_t, locale_t);
 #endif
 
+#ifdef SORTIX_EXTENSIONS
+char* strchrnul(const char* str, int c);
+#endif
+
 __END_DECLS
 
 #endif
diff --git a/libmaxsi/hsrc/string.h b/libmaxsi/hsrc/string.h
index c00bb4d6..1a0cee91 100644
--- a/libmaxsi/hsrc/string.h
+++ b/libmaxsi/hsrc/string.h
@@ -41,6 +41,9 @@ namespace Maxsi
 		char* Cat(char* Dest, const char* Src);
 		char* Tokenize(char* str, const char* delim);
 		char* TokenizeR(char* str, const char* delim, char** saveptr);
+		char* Seek(const char* str, int c);
+		char* SeekNul(const char* str, int c);
+		char* SeekReverse(const char* str, int c);
 		int Compare(const char* A, const char* B);
 		int CompareN(const char* A, const char* B, size_t MaxLength);
 		bool StartsWith(const char* Haystack, const char* Needle);
diff --git a/libmaxsi/string.cpp b/libmaxsi/string.cpp
index 550c6470..8803b193 100644
--- a/libmaxsi/string.cpp
+++ b/libmaxsi/string.cpp
@@ -155,6 +155,34 @@ namespace Maxsi
 			return TokenizeR(str, delim, &lasttokensaveptr);
 		}
 
+		DUAL_FUNCTION(char*, strchrnul, SeekNul, (const char* str, int c))
+		{
+			while ( *str )
+			{
+				if ( *str == c ) { return (char*) str; }
+				str++;
+			}
+			return (char*) str;
+		}
+
+		DUAL_FUNCTION(char*, strrchr, SeekReverse, (const char* str, int c))
+		{
+			const char* last = NULL;
+			while ( *str )
+			{
+				if ( *str == c ) { last = str; }
+				str++;
+			}
+			return (char*) last;
+		}
+
+		DUAL_FUNCTION(char*, strchr, Seek, (const char* str, int c))
+		{
+			char* result = SeekNul(str, c);
+			if ( !*result ) { return NULL; }
+			return result;
+		}
+
 		bool StartsWith(const char* haystack, const char* needle)
 		{
 			return CompareN(haystack, needle, Length(needle)) == 0;