ut.h
7fa84b41
 /*
  *$Id$
  *
  * - various general purpose functions
  */
 
 #ifndef ut_h
 #define ut_h
 
 #include "dprint.h"
 
dda9dab1
 /* returns string beginning and length without insignificant chars */
 #define trim_len( _len, _begin, _mystr ) \
 	({ 	static char _c; \
 		(_len)=(_mystr).len; \
 		while ((_len) && ((_c=(_mystr).s[(_len)-1])==0 || _c=='\r' || _c=='\n' || _c==' ' || _c=='\t' )) \
 			(_len)--; \
 		(_begin)=(_mystr).s; \
 		while ((_len) && ((_c=*(_begin))==' ' || _c=='\t')) { \
 			(_len)--;\
 			(_begin)++; \
 		} \
 	})
 
 #define trim_r( _mystr ) \
 	({	static _c; \
 		while( ((_mystr).len) && ((_c=(_mystr).s[(_mystr).len-1]))==0 || _c=='\r' || _c=='\n') \
 			(_mystr).len--; \
 	})
 
327a9bd5
 
 #define  translate_pointer( _new_buf , _org_buf , _p) \
 	( (_p)?(_new_buf + (_p-_org_buf)):(0) )
 
 
 
3d2e8729
 /* converts a str to an u. short, returns the u. short and sets *err on
7fa84b41
  * error and if err!=null
  * */
 static inline unsigned short str2s(unsigned char* str, unsigned int len,
 									int *err)
 {
 	unsigned short ret;
 	int i;
 	unsigned char *limit;
 	unsigned char *init;
3d2e8729
 
7fa84b41
 	/*init*/
 	ret=i=0;
 	limit=str+len;
 	init=str;
3d2e8729
 
7fa84b41
 	for(;str<limit ;str++){
 		if ( (*str <= '9' ) && (*str >= '0') ){
 				ret=ret*10+*str-'0';
 				i++;
 				if (i>5) goto error_digits;
 		}else{
 				//error unknown char
 				goto error_char;
 		}
 	}
 	if (err) *err=0;
 	return ret;
3d2e8729
 
7fa84b41
 error_digits:
 	DBG("str2s: ERROR: too many letters in [%s]\n", init);
 	if (err) *err=1;
 	return 0;
 error_char:
 	DBG("str2s: ERROR: unexpected char %c in %s\n", *str, init);
 	if (err) *err=1;
 	return 0;
 }
 
 
 
 /* converts a str to an ipv4 address, returns the address and sets *err
  * if error and err!=null
  */
 static inline unsigned int str2ip(unsigned char* str, unsigned int len,
 		int * err)
 {
 	unsigned int ret;
 	int i;
 	unsigned char *limit;
 	unsigned char *init;
 
 	/*init*/
 	ret=i=0;
 	limit=str+len;
 	init=str;
3d2e8729
 
7fa84b41
 	for(;str<limit ;str++){
 		if (*str=='.'){
 				i++;
 				if (i>3) goto error_dots;
 		}else if ( (*str <= '9' ) && (*str >= '0') ){
 				((unsigned char*)&ret)[i]=((unsigned char*)&ret)[i]*10+
 											*str-'0';
 		}else{
 				//error unknown char
 				goto error_char;
 		}
 	}
 	if (err) *err=0;
 	return ret;
3d2e8729
 
7fa84b41
 error_dots:
 	DBG("str2ip: ERROR: too many dots in [%s]\n", init);
 	if (err) *err=1;
 	return 0;
 error_char:
eaf48c3f
 	DBG("str2ip: WARNING: unexpected char %c in %s\n", *str, init);
7fa84b41
 	if (err) *err=1;
 	return 0;
 }
 
 
 
3d2e8729
 static inline int btostr( char *p,  unsigned char val)
 {
 	unsigned int a,b,i =0;
7fa84b41
 
3d2e8729
 	if ( (a=val/100)!=0 )
 		*(p+(i++)) = a+'0';         /*first digit*/
 	if ( (b=val%100/10)!=0 || a)
 		*(p+(i++)) = b+'0';        /*second digit*/
 	*(p+(i++)) = '0'+val%10;              /*third digit*/
 
 	return i;
 }
 
 
 
 /* faster memchr version */
7fa84b41
 static inline char* q_memchr(char* p, int c, unsigned int size)
 {
 	char* end;
 
 	end=p+size;
 	for(;p<end;p++){
 		if (*p==(unsigned char)c) return p;
 	}
 	return 0;
 }
 	
 
 #endif