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Andrei Pelinescu-Onciul authored on 19/11/2001 12:44:51
Showing 2 changed files
str.h
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+/*
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+ * $Id$
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+ */
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+
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+#ifndef str_h
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+#define str_h
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+
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+
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+struct _str{
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+	char* s; /* null terminated string*/
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+	int len; /*string len*/
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+};
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+
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+typedef struct _str str;
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+
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+
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+#endif
ut.h
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+/*
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+ *$Id$
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+ *
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+ * - various general purpose functions
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+ */
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+
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+#ifndef ut_h
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+#define ut_h
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+
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+#include "dprint.h"
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+
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+/* converts a str to an u. short, returns the u. short and sets *err on
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+ * error and if err!=null
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+ * */
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+static inline unsigned short str2s(unsigned char* str, unsigned int len,
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+									int *err)
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+{
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+	unsigned short ret;
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+	int i;
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+	unsigned char *limit;
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+	unsigned char *init;
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+
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+	/*init*/
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+	ret=i=0;
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+	limit=str+len;
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+	init=str;
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+
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+	for(;str<limit ;str++){
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+		if ( (*str <= '9' ) && (*str >= '0') ){
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+				ret=ret*10+*str-'0';
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+				i++;
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+				if (i>5) goto error_digits;
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+		}else{
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+				//error unknown char
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+				goto error_char;
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+		}
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+	}
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+	if (err) *err=0;
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+	return ret;
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+
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+error_digits:
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+	DBG("str2s: ERROR: too many letters in [%s]\n", init);
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+	if (err) *err=1;
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+	return 0;
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+error_char:
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+	DBG("str2s: ERROR: unexpected char %c in %s\n", *str, init);
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+	if (err) *err=1;
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+	return 0;
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+}
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+
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+
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+
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+/* converts a str to an ipv4 address, returns the address and sets *err
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+ * if error and err!=null
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+ */
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+static inline unsigned int str2ip(unsigned char* str, unsigned int len,
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+		int * err)
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+{
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+	unsigned int ret;
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+	int i;
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+	unsigned char *limit;
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+	unsigned char *init;
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+
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+	/*init*/
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+	ret=i=0;
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+	limit=str+len;
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+	init=str;
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+
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+	for(;str<limit ;str++){
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+		if (*str=='.'){
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+				i++;
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+				if (i>3) goto error_dots;
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+		}else if ( (*str <= '9' ) && (*str >= '0') ){
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+				((unsigned char*)&ret)[i]=((unsigned char*)&ret)[i]*10+
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+											*str-'0';
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+		}else{
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+				//error unknown char
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+				goto error_char;
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+		}
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+	}
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+	if (err) *err=0;
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+	return ret;
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+
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+error_dots:
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+	DBG("str2ip: ERROR: too many dots in [%s]\n", init);
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+	if (err) *err=1;
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+	return 0;
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+error_char:
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+	DBG("str2ip: ERROR: unexpected char %c in %s\n", *str, init);
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+	if (err) *err=1;
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+	return 0;
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+}
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+
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+
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+
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+/* faster memchr version */
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+
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+static inline char* q_memchr(char* p, int c, unsigned int size)
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+{
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+	char* end;
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+
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+	end=p+size;
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+	for(;p<end;p++){
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+		if (*p==(unsigned char)c) return p;
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+	}
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+	return 0;
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+}
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+
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+
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+#endif