new

src/cmd/ndb/ndbmkdb.c

@@ -0,0 +1,203 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+#include <ctype.h>
+
+Biobuf in;
+Biobuf out;
+
+enum
+{
+	Empty,
+	Sys,
+	Dk,
+	Ip,
+	Domain,
+};
+
+int
+iscomment(char *name)
+{
+	return *name == '#';
+}
+
+/*
+ *  is this a fully specified datakit name?
+ */
+int
+isdk(char *name)
+{
+	int slash;
+
+	slash = 0;
+	for(; *name; name++){
+		if(isalnum(*name))
+			continue;
+		if(*name == '/'){
+			slash = 1;
+			continue;
+		}
+		return 0;
+	}
+	return slash;
+}
+
+/*
+ *  Is this an internet domain name?
+ */
+int
+isdomain(char *name)
+{
+	int dot = 0;
+	int alpha = 0;
+
+	for(; *name; name++){
+		if(isalpha(*name) || *name == '-'){
+			alpha = 1;
+			continue;
+		}
+		if(*name == '.'){
+			dot = 1;
+			continue;
+		}
+		if(isdigit(*name))
+			continue;
+		return 0;
+	}
+	return dot && alpha;
+}
+
+/*
+ *  is this an ip address?
+ */
+int
+isip(char *name)
+{
+	int dot = 0;
+
+	for(; *name; name++){
+		if(*name == '.'){
+			dot = 1;
+			continue;
+		}
+		if(isdigit(*name))
+			continue;
+		return 0;
+	}
+	return dot;
+}
+
+char tup[64][64];
+int ttype[64];
+int ntup;
+
+void
+tprint(void)
+{
+	int i, tab;
+	char *p;
+
+	tab = 0;
+	for(i = 0; i < ntup; i++){
+		if(ttype[i] == Sys){
+			Bprint(&out, "sys = %s\n", tup[i]);
+			tab = 1;
+			ttype[i] = Empty;
+			break;
+		}
+	}
+	for(i = 0; i < ntup; i++){
+		if(ttype[i] == Empty)
+			continue;
+		if(tab)
+			Bprint(&out, "\t");
+		tab = 1;
+
+		switch(ttype[i]){
+		case Domain:
+			Bprint(&out, "dom=%s\n", tup[i]);
+			break;
+		case Ip:
+			Bprint(&out, "ip=%s\n", tup[i]);
+			break;
+		case Dk:
+			p = strrchr(tup[i], '/');
+			if(p){
+				p++;
+				if((*p == 'C' || *p == 'R')
+				&& strncmp(tup[i], "nj/astro/", p-tup[i]) == 0)
+					Bprint(&out, "flavor=console ");
+			}
+			Bprint(&out, "dk=%s\n", tup[i]);
+			break;
+		case Sys:
+			Bprint(&out, "sys=%s\n", tup[i]);
+			break;
+		}
+	}
+}
+
+#define NFIELDS 64
+
+/*
+ *  make a database file from a merged uucp/inet database
+ */
+void
+main(void)
+{
+	int n, i, j;
+	char *l;
+	char *fields[NFIELDS];
+	int ftype[NFIELDS];
+	int same, match;
+
+	Binit(&in, 0, OREAD);
+	Binit(&out, 1, OWRITE);
+	ntup = 0;
+	while(l = Brdline(&in, '\n')){
+		l[Blinelen(&in)-1] = 0;
+		n = getfields(l, fields, NFIELDS, 1, " \t");
+		same = 0;
+		for(i = 0; i < n; i++){
+			if(iscomment(fields[i])){
+				n = i;
+				break;
+			}
+			if(isdomain(fields[i])){
+				ftype[i] = Domain;
+				for(j = 0; j < ntup; j++)
+					if(ttype[j] == Domain && strcmp(fields[i], tup[j]) == 0){
+						same = 1;
+						ftype[i] = Empty;
+						break;
+					}
+			} else if(isip(fields[i]))
+				ftype[i] = Ip;
+			else if(isdk(fields[i]))
+				ftype[i] = Dk;
+			else
+				ftype[i] = Sys;
+		}
+		if(!same && ntup){
+			tprint();
+			ntup = 0;
+		}
+		for(i = 0; i < n; i++){
+			match = 0;
+			for(j = 0; j < ntup; j++){
+				if(ftype[i] == ttype[j] && strcmp(fields[i], tup[j]) == 0){
+					match = 1;
+					break;
+				}
+			}
+			if(!match){
+				ttype[ntup] = ftype[i];
+				strcpy(tup[ntup], fields[i]);
+				ntup++;
+			}
+		}
+	}
+	if(ntup)
+		tprint();
+	exits(0);
+}