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git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@525 dc483132-0cff-0310-8789-dd5450dbe970

diff --git a/src/lib/krb5/os/net_read.c b/src/lib/krb5/os/net_read.c
new file mode 100644 (file)
index 0000000..153ecfe
--- /dev/null
+++ b/src/lib/krb5/os/net_read.c
@@ -0,0 +1,49 @@
+/*
+ * $Source$
+ * $Author$
+ *
+ * Copyright 1987, 1988, 1990 by the Massachusetts Institute of Technology.
+ *
+ * For copying and distribution information, please see the file
+ * <krb5/mit-copyright.h>.
+ */
+
+#ifndef        lint
+static char rcsid_net_read_c[] =
+"$Header$";
+#endif lint
+
+#include <krb5/mit-copyright.h>
+
+/*
+ * krb_net_read() reads from the file descriptor "fd" to the buffer
+ * "buf", until either 1) "len" bytes have been read or 2) cannot
+ * read anymore from "fd".  It returns the number of bytes read
+ * or a read() error.  (The calling interface is identical to
+ * read(2).)
+ *
+ * XXX must not use non-blocking I/O
+ */
+
+int
+krb5_net_read(fd, buf, len)
+int fd;
+register char *buf;
+register int len;
+{
+    int cc, len2 = 0;
+
+    do {
+       cc = read(fd, buf, len);
+       if (cc < 0)
+           return(cc);          /* errno is already set */
+       else if (cc == 0) {
+           return(len2);
+       } else {
+           buf += cc;
+           len2 += cc;
+           len -= cc;
+       }
+    } while (len > 0);
+    return(len2);
+}

diff --git a/src/lib/krb5/os/net_write.c b/src/lib/krb5/os/net_write.c
new file mode 100644 (file)
index 0000000..cb64446
--- /dev/null
+++ b/src/lib/krb5/os/net_write.c
@@ -0,0 +1,45 @@
+/*
+ * $Source$
+ * $Author$
+ *
+ * Copyright 1987, 1988, 1990 by the Massachusetts Institute of Technology.
+ *
+ * For copying and distribution information, please see the file
+ * <krb5/mit-copyright.h>.
+ */
+
+#ifndef        lint
+static char rcsid_net_write_c[] =
+"$Header$";
+#endif lint
+
+#include <krb5/mit-copyright.h>
+
+/*
+ * krb_net_write() writes "len" bytes from "buf" to the file
+ * descriptor "fd".  It returns the number of bytes written or
+ * a write() error.  (The calling interface is identical to
+ * write(2).)
+ *
+ * XXX must not use non-blocking I/O
+ */
+
+int
+krb5_net_write(fd, buf, len)
+int fd;
+register char *buf;
+int len;
+{
+    int cc;
+    register int wrlen = len;
+    do {
+       cc = write(fd, buf, wrlen);
+       if (cc < 0)
+           return(cc);
+       else {
+           buf += cc;
+           wrlen -= cc;
+       }
+    } while (wrlen > 0);
+    return(len);
+}