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authorDamien Miller <djm@mindrot.org>1999-12-07 17:03:33 +1100
committerDamien Miller <djm@mindrot.org>1999-12-07 17:03:33 +1100
commit05ec5c64251075aa40c74842a429546383d9b354 (patch)
treedd83cd251389979473b4d2557265801b3e073d0f /atomicio.c
parenta3c60900610165a88694c461119a146fbdaf9cc4 (diff)
Third time luckyV_1_2_PRE16
Diffstat (limited to 'atomicio.c')
-rw-r--r--atomicio.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/atomicio.c b/atomicio.c
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+/*
+ * Copyright (c) 1999 Theo de Raadt
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "includes.h"
+RCSID("$Id: atomicio.c,v 1.7 1999/12/07 06:03:33 damien Exp $");
+
+#include "xmalloc.h"
+#include "ssh.h"
+
+/*
+ * ensure all of data on socket comes through. f==read || f==write
+ */
+int
+atomicio(f, fd, s, n)
+ int (*f) ();
+ int fd;
+ void *s;
+ size_t n;
+{
+ int res, pos = 0;
+
+ while (n > pos) {
+ res = (f) (fd, s + pos, n - pos);
+ switch (res) {
+ case -1:
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+ case 0:
+ return (res);
+ default:
+ pos += res;
+ }
+ }
+ return (pos);
+}