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#ifndef _LINUX_STRING_H_
#define _LINUX_STRING_H_
#include <dl-sysdep.h> // for do_rem
static size_t _dl_strlen(const char * str);
static char *_dl_strcat(char *dst, const char *src);
static char * _dl_strcpy(char * dst,const char *src);
static int _dl_strcmp(const char * s1,const char * s2);
static int _dl_strncmp(const char * s1,const char * s2,size_t len);
static char * _dl_strchr(const char * str,int c);
static char *_dl_strrchr(const char *str, int c);
static char *_dl_strstr(const char *s1, const char *s2);
static void * _dl_memcpy(void * dst, const void * src, size_t len);
static int _dl_memcmp(const void * s1,const void * s2,size_t len);
static void *_dl_memset(void * str,int c,size_t len);
static char *_dl_get_last_path_component(char *path);
static char *_dl_simple_ltoa(char * local, unsigned long i);
static char *_dl_simple_ltoahex(char * local, unsigned long i);
#ifndef NULL
#define NULL ((void *) 0)
#endif
static inline size_t _dl_strlen(const char * str)
{
register const char *ptr = (char *) str-1;
while (*++ptr);
return (ptr - str);
}
static inline char *_dl_strcat(char *dst, const char *src)
{
register char *ptr = dst-1;
src--;
while (*++ptr)
;/* empty */
ptr--;
while ((*++ptr = *++src) != 0)
;/* empty */
return dst;
}
static inline char * _dl_strcpy(char * dst,const char *src)
{
register char *ptr = dst;
dst--;src--;
while ((*++dst = *++src) != 0);
return ptr;
}
static inline int _dl_strcmp(const char * s1,const char * s2)
{
register unsigned char c1, c2;
s1--;s2--;
do {
c1 = (unsigned char) *++s1;
c2 = (unsigned char) *++s2;
if (c1 == '\0')
return c1 - c2;
}
while (c1 == c2);
return c1 - c2;
}
static inline int _dl_strncmp(const char * s1,const char * s2,size_t len)
{
register unsigned char c1 = '\0';
register unsigned char c2 = '\0';
s1--;s2--;
while (len > 0) {
c1 = (unsigned char) *++s1;
c2 = (unsigned char) *++s2;
if (c1 == '\0' || c1 != c2)
return c1 - c2;
len--;
}
return c1 - c2;
}
static inline char * _dl_strchr(const char * str,int c)
{
register char ch;
str--;
do {
if ((ch = *++str) == c)
return (char *) str;
}
while (ch);
return 0;
}
static inline char *_dl_strrchr(const char *str, int c)
{
register char *prev = 0;
register char *ptr = (char *) str-1;
while (*++ptr != '\0') {
if (*ptr == c)
prev = ptr;
}
if (c == '\0')
return(ptr);
return(prev);
}
static inline char *_dl_strstr(const char *s1, const char *s2)
{
register const char *s = s1;
register const char *p = s2;
do {
if (!*p) {
return (char *) s1;;
}
if (*p == *s) {
++p;
++s;
} else {
p = s2;
if (!*s) {
return NULL;
}
s = ++s1;
}
} while (1);
}
static inline void * _dl_memcpy(void * dst, const void * src, size_t len)
{
register char *a = dst;
register const char *b = src;
while (len--)
*a++ = *b++;
return dst;
}
static inline int _dl_memcmp(const void * s1,const void * s2,size_t len)
{
unsigned char *c1 = (unsigned char *)s1-1;
unsigned char *c2 = (unsigned char *)s2-1;
while (len) {
if (*++c1 != *++c2)
return *c1 - *c2;
len--;
}
return 0;
}
static inline void * _dl_memset(void * str,int c,size_t len)
{
register char *a = str;
while (len--)
*a++ = c;
return str;
}
static inline char *_dl_get_last_path_component(char *path)
{
register char *ptr = path-1;
while (*++ptr)
;/* empty */
/* strip trailing slashes */
while (ptr != path && *--ptr == '/') {
*ptr = '\0';
}
/* find last component */
while (ptr != path && *--ptr != '/')
;/* empty */
return ptr == path ? ptr : ptr+1;
}
/* Early on, we can't call printf, so use this to print out
* numbers using the SEND_STDERR() macro. Avoid using mod
* or using long division */
static inline char *_dl_simple_ltoa(char * local, unsigned long i)
{
/* 21 digits plus null terminator, good for 64-bit or smaller ints */
char *p = &local[22];
*--p = '\0';
do {
char temp;
do_rem(temp, i, 10);
*--p = '0' + temp;
i /= 10;
} while (i > 0);
return p;
}
static inline char *_dl_simple_ltoahex(char * local, unsigned long i)
{
/* 21 digits plus null terminator, good for 64-bit or smaller ints */
char *p = &local[22];
*--p = '\0';
do {
char temp = i & 0xf;
if (temp <= 0x09)
*--p = '0' + temp;
else
*--p = 'a' - 0x0a + temp;
i >>= 4;
} while (i > 0);
*--p = 'x';
*--p = '0';
return p;
}
#if defined(mc68000) || defined(__arm__) || defined(__mips__) || defined(__sh__) || defined(__powerpc__)
/* On some arches constant strings are referenced through the GOT. */
/* XXX Requires load_addr to be defined. */
#define SEND_STDERR(X) \
{ const char *__s = (X); \
if (__s < (const char *) load_addr) __s += load_addr; \
_dl_write (2, __s, _dl_strlen (__s)); \
}
#else
#define SEND_STDERR(X) _dl_write(2, X, _dl_strlen(X));
#endif
#define SEND_ADDRESS_STDERR(X, add_a_newline) { \
char tmp[22], *tmp1; \
_dl_memset(tmp, 0, sizeof(tmp)); \
tmp1=_dl_simple_ltoahex( tmp, (unsigned long)(X)); \
_dl_write(2, tmp1, _dl_strlen(tmp1)); \
if (add_a_newline) { \
tmp[0]='\n'; \
_dl_write(2, tmp, 1); \
} \
};
#define SEND_NUMBER_STDERR(X, add_a_newline) { \
char tmp[22], *tmp1; \
_dl_memset(tmp, 0, sizeof(tmp)); \
tmp1=_dl_simple_ltoa( tmp, (unsigned long)(X)); \
_dl_write(2, tmp1, _dl_strlen(tmp1)); \
if (add_a_newline) { \
tmp[0]='\n'; \
_dl_write(2, tmp, 1); \
} \
};
#endif
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