*/
+#define NEED_MEMSET 0
+#define NEED_MEMCPY 0
+#define NEED_MEMCMP 0
+#define NEED_STRLEN 0
+#define NEED_STRNLEN 0
+#define NEED_STRCMP 0
+#define NEED_STRNCMP 0
+#define NEED_STRCAT 0
+#define NEED_STRNCAT 0
+#define NEED_STRCPY 0
+#define NEED_STRNCPY 0
+#define NEED_STRDUP 0
+#define NEED_ATOI 0
+#define NEED_STRCHR 0
+#define NEED_STRRCHR 0
+#define NEED_STRPBRK 0
+
+
+
+#include <palacios/vmm_types.h>
#include <palacios/vmm_string.h>
#include <palacios/vmm.h>
-
-static float e = 0.00000001;
-
-double ceil(double x) {
- if ((double)(x - (int)x) == 0) {
- return (int)x;
- }
- return (int)(x + e) + 1;
-}
-
-#if 0
-void* memset(void* s, int c, size_t n)
-{
- unsigned char* p = (unsigned char*) s;
+#if NEED_MEMSET
+void * memset(void * s, int c, size_t n) {
+ uchar_t * p = (uchar_t *) s;
while (n > 0) {
- *p++ = (unsigned char) c;
+ *p++ = (uchar_t) c;
--n;
}
return s;
}
+#endif
-
-void* memcpy(void *dst, const void* src, size_t n)
-{
- unsigned char* d = (unsigned char*) dst;
- const unsigned char* s = (const unsigned char*) src;
+#if NEED_MEMCPY
+void * memcpy(void * dst, const void * src, size_t n) {
+ uchar_t * d = (uchar_t *) dst;
+ const uchar_t * s = (const uchar_t *)src;
while (n > 0) {
*d++ = *s++;
return dst;
}
+#endif
-int memcmp(const void *s1_, const void *s2_, size_t n)
-{
- const signed char *s1 = s1_, *s2 = s2_;
+#if NEED_CMP
+int memcmp(const void * s1_, const void * s2_, size_t n) {
+ const char * s1 = s1_;
+ const char * s2 = s2_;
while (n > 0) {
- int cmp = *s1 - *s2;
- if (cmp != 0)
+ int cmp = (*s1 - *s2);
+
+ if (cmp != 0) {
return cmp;
+ }
+
++s1;
++s2;
}
return 0;
}
+#endif
-size_t strlen(const char* s)
-{
+
+#if NEED_STRLEN
+size_t strlen(const char * s) {
size_t len = 0;
- while (*s++ != '\0')
+
+ while (*s++ != '\0') {
++len;
+ }
+
return len;
}
+#endif
+
+
+#if NEED_STRNLEN
/*
* This it a GNU extension.
* It is like strlen(), but it will check at most maxlen
* This is very useful for checking the length of untrusted
* strings (e.g., from user space).
*/
-size_t strnlen(const char *s, size_t maxlen)
-{
+size_t strnlen(const char * s, size_t maxlen) {
size_t len = 0;
- while (len < maxlen && *s++ != '\0')
+
+ while ((len < maxlen) && (*s++ != '\0')) {
++len;
+ }
+
return len;
}
+#endif
-int strcmp(const char* s1, const char* s2)
-{
+
+#if NEED_STRCMP
+int strcmp(const char * s1, const char * s2) {
while (1) {
- int cmp = *s1 - *s2;
- if (cmp != 0 || *s1 == '\0' || *s2 == '\0')
+ int cmp = (*s1 - *s2);
+
+ if ((cmp != 0) || (*s1 == '\0') || (*s2 == '\0')) {
return cmp;
+ }
+
++s1;
++s2;
}
}
+#endif
-int strncmp(const char* s1, const char* s2, size_t limit)
-{
+
+#if NEED_STRNCMP
+int strncmp(const char * s1, const char * s2, size_t limit) {
size_t i = 0;
+
while (i < limit) {
- int cmp = *s1 - *s2;
- if (cmp != 0 || *s1 == '\0' || *s2 == '\0')
+ int cmp = (*s1 - *s2);
+
+ if ((cmp != 0) || (*s1 == '\0') || (*s2 == '\0')) {
return cmp;
+ }
+
++s1;
++s2;
++i;
/* limit reached and equal */
return 0;
}
+#endif
-char *strcat(char *s1, const char *s2)
-{
- char *t1;
- t1 = s1;
- while (*s1) s1++;
- while(*s2) *s1++ = *s2++;
+#if NEED_STRCAT
+char * strcat(char * s1, const char * s2) {
+ char * t1 = s1;
+
+ while (*s1) { s1++; }
+ while (*s2) { *s1++ = *s2++; }
+
*s1 = '\0';
return t1;
}
+#endif
+
+
+#if NEED_STRNCAT
+char * strncat(char * s1, const char * s2, size_t limit) {
+ size_t i = 0;
+ char * t1;
+
+ t1 = s1;
+
+ while (*s1) { s1++; }
+
+ while (i < limit) {
+ if (*s2 == '\0') {
+ break;
+ }
+ *s1++ = *s2++;
+ }
+ *s1 = '\0';
+ return t1;
+}
+#endif
+
+
-char *strcpy(char *dest, const char *src)
+#if NEED_STRCPY
+char * strcpy(char * dest, const char * src)
{
char *ret = dest;
return ret;
}
+#endif
-char *strncpy(char *dest, const char *src, size_t limit)
-{
- char *ret = dest;
- while (*src != '\0' && limit > 0) {
+#if NEED_STRNCPY
+char * strncpy(char * dest, const char * src, size_t limit) {
+ char * ret = dest;
+
+ while ((*src != '\0') && (limit > 0)) {
*dest++ = *src++;
--limit;
}
+
if (limit > 0)
*dest = '\0';
return ret;
}
+#endif
-char *strdup(const char *s1)
-{
+
+
+#if NEED_STRDUP
+char * strdup(const char * s1) {
char *ret;
ret = V3_Malloc(strlen(s1) + 1);
return ret;
}
+#endif
-int atoi(const char *buf)
-{
+
+
+
+#if NEED_ATOI
+int atoi(const char * buf) {
int ret = 0;
- while (*buf >= '0' && *buf <= '9') {
- ret *= 10;
- ret += *buf - '0';
- buf++;
+ while ((*buf >= '0') && (*buf <= '9')) {
+ ret *= 10;
+ ret += (*buf - '0');
+ buf++;
}
return ret;
}
+#endif
-char *strchr(const char *s, int c)
-{
+
+#if NEED_STRCHR
+char * strchr(const char * s, int c) {
while (*s != '\0') {
if (*s == c)
- return (char *) s;
+ return (char *)s;
++s;
}
return 0;
}
+#endif
-char *strrchr(const char *s, int c)
-{
+
+#if NEED_STRRCHR
+char * strrchr(const char * s, int c) {
size_t len = strlen(s);
- const char *p = s + len;
+ const char * p = s + len;
while (p > s) {
--p;
- if (*p == c)
- return (char*) p;
+
+ if (*p == c) {
+ return (char *)p;
+ }
}
return 0;
}
+#endif
-char *strpbrk(const char *s, const char *accept)
-{
+#if NEED_STRPBRK
+char * strpbrk(const char * s, const char * accept) {
size_t setLen = strlen(accept);
while (*s != '\0') {
size_t i;
for (i = 0; i < setLen; ++i) {
- if (*s == accept[i])
- return (char *) s;
+ if (*s == accept[i]) {
+ return (char *)s;
+ }
}
++s;
}
return 0;
}
-
#endif
+
