From e32376aaed01ed44981386e348ac35b58da23495 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Thu, 18 Mar 2004 11:12:34 +0000
Subject: Reduce memory used by static buffers and allocate that memory
 dynamicly instead.  Based on an initial patch from Tobias Anderberg, but
 reworked.  I asked Tobias to look into doing something more like what is done
 in busybox, but that proved to be a pain.

One possible concern is that these buffers will probably show up as
memory leaks i.e. with valgrind.  Perhaps we should add in an atexit
call to free this memory right after we allocate it?
---
 libc/misc/mntent/mntent.c    | 11 +++++++++--
 libc/misc/ttyent/getttyent.c | 10 +++++++++-
 2 files changed, 18 insertions(+), 3 deletions(-)

(limited to 'libc/misc')

diff --git a/libc/misc/mntent/mntent.c b/libc/misc/mntent/mntent.c
index 93d591812..d98a6870f 100644
--- a/libc/misc/mntent/mntent.c
+++ b/libc/misc/mntent/mntent.c
@@ -65,10 +65,17 @@ struct mntent *getmntent_r (FILE *filep,
 struct mntent *getmntent(FILE * filep)
 {
     struct mntent *tmp;
-    static char buff[BUFSIZ];
+    static char *buff = NULL;
     static struct mntent mnt;
     LOCK;
-    tmp = getmntent_r(filep, &mnt, buff, sizeof buff);
+    
+    if (!buff) {
+            buff = malloc(BUFSIZ);
+		if (!buff)
+		    abort();
+    }
+    
+    tmp = getmntent_r(filep, &mnt, buff, BUFSIZ);
     UNLOCK;
     return(tmp);
 }
diff --git a/libc/misc/ttyent/getttyent.c b/libc/misc/ttyent/getttyent.c
index 18b9109af..0b2c9a3cc 100644
--- a/libc/misc/ttyent/getttyent.c
+++ b/libc/misc/ttyent/getttyent.c
@@ -99,11 +99,19 @@ struct ttyent * getttyent(void)
 {
     register int c;
     register char *p;
-    static char line[BUFSIZ];
+    static char *line = NULL;
 
     if (!tf && !setttyent())
 	return (NULL);
+
+    if (!line) {
+            line = malloc(BUFSIZ);
+		if (!line)
+		    abort();
+    }
+
     flockfile (tf);
+
     for (;;) {
 	if (!fgets_unlocked(p = line, sizeof(line), tf)) {
 	    funlockfile (tf);
-- 
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