Don't do sprintf().

p4raw-id: //depot/perl@19833

diff --git a/malloc.c b/malloc.c
index 0e6e642..b080444 100644 (file)
--- a/malloc.c
+++ b/malloc.c
@@ -1269,8 +1269,6 @@ botch(char *diag, char *s, char *file, int line)
        goto do_write;
     else {
        dTHX;
-       char linebuf[10];
-
        if (PerlIO_printf(PerlIO_stderr(),
                          "assertion botched (%s?): %s%s %s:%d\n",
                          diag, s, file, line) != 0) {
@@ -1282,8 +1280,16 @@ botch(char *diag, char *s, char *file, int line)
            write2(" (");
            write2(file);
            write2(":");
-           sprintf(linebuf, "%d", line);
-           write2(linebuf);
+           {
+             char linebuf[10];
+             char *s = linebuf + sizeof(linebuf) - 1;
+             int n = line;
+             *s = 0;
+             do {
+               *--s = '0' + (n % 10);
+             } while (n /= 10);
+             write2(s);
+           }
            write2(")\n");
        }
        PerlProc_abort();