ash: add FIXME

1 files changed, 7 insertions, 2 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 295418c04..9eff1b38e 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -9156,6 +9156,11 @@ popstring(void)
         INT_ON;
 }
 
+//FIXME: BASH_COMPAT with "...&" does TWO pungetc():
+//it peeks whether it is &>, and then pushes back both chars.
+//This function needs to save last *next_to_pgetc to buf[0]
+//to make two pungetc() reliable. Currently,
+// pgetc (out of buf: does preadfd), pgetc, pungetc, pungetc won't work...
 static int
 preadfd(void)
 {
@@ -9251,9 +9256,9 @@ preadbuffer(void)
          * "pgetc" needs refilling.
          */
 
-        /* -90 is -BIGNUM. Below we use -99 to mark "EOF on read",
+        /* -90 is our -BIGNUM. Below we use -99 to mark "EOF on read",
          * pungetc() may increment it a few times.
-         * Assuming it won't increment it to 0.
+         * Assuming it won't increment it to less than -90.
          */
         if (g_parsefile->left_in_line < -90 || g_parsefile->buf == NULL) {
                 pgetc_debug("preadbuffer PEOF1");