extra functions

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1405 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/include/string.h

@@ -2,6 +2,14 @@
 #define STRING_H
 
 #include <stddef.h>
+#include <stdlib.h>
+
+extern void *memcpy(void *dest, const void *src, size_t n);
+extern void *memmove(void *dest, const void *src, size_t n);
+extern void *memset(void *s, int c, size_t n);
+extern int memcmp(const void *s1, const void *s2, size_t n);
+
+extern int sprintf(char * buf, const char *fmt, ...);
 
 // yes, linux has fancy ones. We don't care. This stuff gets used 
 // hardly at all. And the pain of including those files is just too high.
@@ -28,10 +36,83 @@ static inline size_t strlen(const char *src)
 	return i;
 }
 
-extern void *memcpy(void *dest, const void *src, size_t n);
-extern void *memmove(void *dest, const void *src, size_t n);
-extern void *memset(void *s, int c, size_t n);
-extern int memcmp(const void *s1, const void *s2, size_t n);
+static inline char *strchr(const char *s, int c)
+{
+	for (; *s; s++) {
+		if (*s == c)
+			return (char *) s;
+	}       
+	return 0;
+}
 
-extern int sprintf(char * buf, const char *fmt, ...);
+static inline char *strdup(const char *s)
+{   
+	size_t sz = strlen(s) + 1;
+	char *d = malloc(sz);
+	memcpy(d, s, sz);
+	return d;
+}
+
+static inline char *strncpy(char *to, const char *from, int count)
+{
+	register char *ret = to;
+
+	while (count > 0) {
+		count--;
+		if ((*to++ = *from++) == '\0')
+			break;
+	}
+
+	while (count > 0) {
+		count--;
+		*to++ = '\0';
+	}
+	return ret;
+}
+
+static inline int strcmp(const char *s1, const char *s2)
+{   
+	int r;
+
+	while ((r = (*s1 - *s2)) == 0 && *s1) {
+		s1++;
+		s2++;
+	}
+	return r;
+}  
+
+static inline int isspace(int c)
+{
+	switch (c) {
+	case ' ': case '\f': case '\n':
+	case '\r': case '\t': case '\v':
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static inline int isdigit(int c)
+{
+	return (c >= '0' && c <= '9');
+}
+
+static inline int isxdigit(int c)
+{
+	return ((c >= '0' && c <= '9') ||
+		(c >= 'a' && c <= 'f') ||
+		(c >= 'A' && c <= 'F'));
+}
+
+static inline int islower(int c)
+{
+	return (c >= 'a' && c <= 'z');
+}
+
+static inline int toupper(int c)
+{
+        if (islower(c))
+                c -= 'a'-'A';
+        return c;
+}
 #endif /* STRING_H */