Thanks to John Cummings.

1 files changed, 98 insertions, 0 deletions

diff --git a/src/cmd/upas/filterkit/readaddrs.c b/src/cmd/upas/filterkit/readaddrs.c
new file mode 100644
index 00000000..9aadc1ab
--- /dev/null
+++ b/src/cmd/upas/filterkit/readaddrs.c
@@ -0,0 +1,98 @@
+#include <u.h>
+#include <libc.h>
+#include "dat.h"
+
+void*
+emalloc(int size)
+{
+	void *a;
+
+	a = mallocz(size, 1);
+	if(a == nil)
+		sysfatal("%r");
+	return a;
+}
+
+char*
+estrdup(char *s)
+{
+	s = strdup(s);
+	if(s == nil)
+		sysfatal("%r");
+	return s;
+}
+
+/*
+ * like tokenize but obey "" quoting
+ */
+int
+tokenize822(char *str, char **args, int max)
+{
+	int na;
+	int intok = 0, inquote = 0;
+
+	if(max <= 0)
+		return 0;	
+	for(na=0; ;str++)
+		switch(*str) {
+		case ' ':
+		case '\t':
+			if(inquote)
+				goto Default;
+			/* fall through */
+		case '\n':
+			*str = 0;
+			if(!intok)
+				continue;
+			intok = 0;
+			if(na < max)
+				continue;
+			/* fall through */
+		case 0:
+			return na;
+		case '"':
+			inquote ^= 1;
+			/* fall through */
+		Default:
+		default:
+			if(intok)
+				continue;
+			args[na++] = str;
+			intok = 1;
+		}
+	return 0;	/* can't get here; silence compiler */
+}
+
+Addr*
+readaddrs(char *file, Addr *a)
+{
+	int fd;
+	int i, n;
+	char buf[8*1024];
+	char *f[128];
+	Addr **l;
+	Addr *first;
+
+	/* add to end */
+	first = a;
+	for(l = &first; *l != nil; l = &(*l)->next)
+		;
+
+	/* read in the addresses */
+	fd = open(file, OREAD);
+	if(fd < 0)
+		return first;
+	n = read(fd, buf, sizeof(buf)-1);
+	close(fd);
+	if(n <= 0)
+		return first;
+	buf[n] = 0;
+
+	n = tokenize822(buf, f, nelem(f));
+	for(i = 0; i < n; i++){
+		*l = a = emalloc(sizeof *a);
+		l = &a->next;
+		a->val = estrdup(f[i]);
+	}
+	return first;
+}