1 files changed, 36 insertions, 0 deletions
diff --git a/libc/tests/lines.c b/libc/tests/lines.c
new file mode 100644
index 0000000..6f3afb0
--- /dev/null
+++ b/libc/tests/lines.c
@@ -0,0 +1,36 @@
+
+#include <string.h>
+#include <fcntl.h>
+
+char *
+readline(fd)
+{
+static char linebuf[256];
+   int cc;
+   char * p;
+
+   cc = read(fd, linebuf, sizeof(linebuf)-1);
+   if( cc <= 0 ) return 0;
+   p = strchr(linebuf, '\n');
+   if( p == 0 ) p = linebuf+sizeof(linebuf)-1;
+   else
+   {
+      p++; lseek(fd, (long)(p-linebuf)-cc, 1);
+   }
+   *p = 0;
+   return linebuf;
+}
+
+main()
+{
+   int fd = open("/etc/passwd", O_RDONLY);
+   char * p;
+
+   if(fd<0) exit(1);
+   
+   while( p=readline(fd) )
+   {
+      write(1, ">>", 2);
+      write(1, p, strlen(p));
+   }
+}