handle printf("%s\n", 0)

2007-08-28 04:15:35 +00:00 · 2007-08-28 04:15:35 +00:00 · b943284893
parent 43baa1f224
commit b943284893
1 changed files with 2 additions and 0 deletions
--- a/printf.c
+++ b/printf.c
@ -63,6 +63,8 @@ printf(int fd, char *fmt, ...)
      } else if(c == 's'){
        s = (char*)*ap;
        ap++;
+        if(s == 0)
+          s = "(null)";
        while(*s != 0){
          putc(fd, *s);
          s++;