smugfs(4): new program

src/cmd/smugfs/util.c

@@ -0,0 +1,81 @@
+#include "a.h"
+
+void*
+emalloc(int n)
+{
+	void *v;
+	
+	v = mallocz(n, 1);
+	if(v == nil)
+		sysfatal("out of memory");
+	return v;
+}
+
+void*
+erealloc(void *v, int n)
+{
+	v = realloc(v, n);
+	if(v == nil)
+		sysfatal("out of memory");
+	return v;
+}
+
+char*
+estrdup(char *s)
+{
+	s = strdup(s);
+	if(s == nil)
+		sysfatal("out of memory");
+	return s;
+}
+
+int
+timefmt(Fmt *f)
+{
+	Tm tm;
+	vlong ms;
+	
+	ms = nsec()/1000000;
+	
+	tm = *localtime(ms/1000);
+	fmtprint(f, "%02d:%02d:%02d.%03d",
+		tm.hour, tm.min, tm.sec,
+		(int)(ms%1000));
+	return 0;
+}
+
+int
+writen(int fd, void *buf, int n)
+{
+	long m, tot;
+
+	for(tot=0; tot<n; tot+=m){
+		m = n - tot;
+		if(m > 8192)
+			m = 8192;
+		if(write(fd, (uchar*)buf+tot, m) != m)
+			break;
+	}
+	return tot;
+}
+
+int
+urlencodefmt(Fmt *fmt)
+{
+	int x;
+	char *s;
+	
+	s = va_arg(fmt->args, char*);
+	for(; *s; s++){
+		x = (uchar)*s;
+		if(x == ' ')
+			fmtrune(fmt, '+');
+		else if(('a' <= x && x <= 'z') || ('A' <= x && x <= 'Z') || ('0' <= x && x <= '9')
+			|| strchr("$-_.+!*'()", x)){
+			fmtrune(fmt, x);
+		}else
+			fmtprint(fmt, "%%%02ux", x);
+	}
+	return 0;
+}
+