os400: drop vsprintf() use

Follow-up to discussion in libssh2#1457

Plus e-mail address update.

Closes libssh2#1462

Author: monnerat

Makefile.am

@@ -29,7 +29,7 @@ OS400FILES = os400/README400 os400/initscript.sh os400/make.sh \
   os400/config400.default \
   os400/os400sys.c os400/ccsid.c \
   os400/libssh2_config.h os400/macros.h os400/libssh2_ccsid.h \
-  os400/include/alloca.h os400/include/sys/socket.h os400/include/stdio.h \
+  os400/include/alloca.h os400/include/sys/socket.h \
   os400/include/assert.h \
   os400/libssh2rpg/libssh2.rpgle.in \
   os400/libssh2rpg/libssh2_ccsid.rpgle.in \

os400/README400

@@ -18,7 +18,8 @@ additional procedures are provided for string transcoding (see below). No
 wrappers to standard procedures are provided: however, nested calls to
 transcoding procedures may be used.
 
-Crypto API is provided by the IBM QC3 API library. It supports RSA, but not DSA.
+Crypto API is provided by the IBM QC3 API library. It supports RSA and EC,
+but not DSA.
 
 
   Standard compilation environment does support neither autotools nor make;
@@ -36,7 +37,8 @@ Compiling on OS/400:
 archive extraction. Do not ask questions about these subjects if you're not
 familiar with.
 
-_ As a prerequisite, QADRT development environment must be installed.
+_ As a prerequisite, QADRT development environment >= 20211112 must be
+  installed.
   For more information on downloading and installing the QADRT development kit,
   please see https://www.ibm.com/support/pages/node/6258183
 _ If data compression has to be supported, ZLIB development environment must

os400/include/alloca.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) Patrick Monnerat, D+H <patrick[email protected]>
+ * Copyright (C) Patrick Monnerat <patrick@monnerat.net>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms,

os400/include/stdio.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) Patrick Monnerat, D+H <patrick[email protected]>
+ * Copyright (C) Patrick Monnerat <patrick@monnerat.net>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms,

os400/include/sys/socket.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) Patrick Monnerat, D+H <patrick[email protected]>
+ * Copyright (C) Patrick Monnerat <patrick@monnerat.net>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms,

os400/libssh2_ccsid.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) Patrick Monnerat, D+H <patrick[email protected]>
+ * Copyright (C) Patrick Monnerat <patrick@monnerat.net>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms,

os400/libssh2_config.h

@@ -1,4 +1,4 @@
-      * Copyright (C) Patrick Monnerat, D+H <patrick[email protected]>
+      * Copyright (C) Patrick Monnerat <patrick@monnerat.net>
       * All rights reserved.
       *
       * Redistribution and use in source and binary forms,

os400/libssh2rpg/libssh2_ccsid.rpgle.in

@@ -1,4 +1,4 @@
-      * Copyright (C) Patrick Monnerat, D+H <patrick[email protected]>
+      * Copyright (C) Patrick Monnerat <patrick@monnerat.net>
       * All rights reserved.
       *
       * Redistribution and use in source and binary forms,

os400/libssh2rpg/libssh2_publickey.rpgle

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) Patrick Monnerat, D+H <patrick[email protected]>
+ * Copyright (C) Patrick Monnerat <patrick@monnerat.net>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms,
@@ -128,58 +128,6 @@ _libssh2_os400_connect(int sd, struct sockaddr *destaddr, int addrlen)
 }
 
 
-int
-_libssh2_os400_vsnprintf(char *dst, size_t len, const char *fmt, va_list args)
-{
-    size_t l = 4096;
-    int i;
-    char *buf;
-
-    if(!dst || !len) {
-        errno = EINVAL;
-        return -1;
-    }
-
-    if(l < len)
-        l = len;
-
-    buf = alloca(l);
-
-    if(!buf) {
-        errno = ENOMEM;
-        return -1;
-    }
-
-    /* !checksrc! disable BANNEDFUNC 1 */ /* FIXME */
-    i = vsprintf(buf, fmt, args);
-
-    if(i < 0)
-        return i;
-
-    if(--len > i)
-        len = i;
-
-    if(len)
-        memcpy(dst, buf, len);
-
-    dst[len] = '\0';
-    return len;
-}
-
-/* VARARGS3 */
-int
-_libssh2_os400_snprintf(char *dst, size_t len, const char *fmt, ...)
-{
-    va_list args;
-    int ret;
-
-    va_start(args, fmt);
-    ret = _libssh2_os400_vsnprintf(dst, len, fmt, args);
-    va_end(args);
-    return ret;
-}
-
-
 #ifdef LIBSSH2_HAVE_ZLIB
 int
 _libssh2_os400_inflateInit_(z_streamp strm,