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authorRoland McGrath <roland@gnu.org>1995-10-17 05:49:48 +0000
committerRoland McGrath <roland@gnu.org>1995-10-17 05:49:48 +0000
commitb3a59f408e7462fbd77289e8c3f50606044a585a (patch)
treecfd874921dda17cb953c2f4a44b533db0641639d /stdio/vsnprintf.c
parent0700dfa143cad61b491c6d596657ee69cd5b35bd (diff)
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Tue Oct 17 01:21:21 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* stdio-common/psignal.c: Translate signal description strings. * string/strsignal.c: Likewise. * sysdeps/generic/_strerror.c (_strerror_internal): Translate error strings. * sysdeps/mach/_strerror.c: Likewise. * stdio-common/snprintf.c (__snprintf): Renamed from snprintf; call __vsnprintf. (snprintf): Define as weak alias. * stdio/vsnprintf.c (__vsnprintf): Renamed from vsnprintf. (vsnprintf): Define as weak alias. * libc-symbols.h [! ASSEMBLER] (_): New macro.
Diffstat (limited to 'stdio/vsnprintf.c')
-rw-r--r--stdio/vsnprintf.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/stdio/vsnprintf.c b/stdio/vsnprintf.c
new file mode 100644
index 0000000..5de157d
--- /dev/null
+++ b/stdio/vsnprintf.c
@@ -0,0 +1,56 @@
+/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+
+/*
+ * Write formatted output to S according to the format string
+ * FORMAT, using the argument list in ARG, writing no more
+ * than MAXLEN characters.
+ */
+int
+__vsnprintf (char *s, size_t maxlen, const char *format, va_list arg)
+{
+ int done;
+ FILE f;
+
+ memset((PTR) &f, 0, sizeof(f));
+ f.__magic = _IOMAGIC;
+ f.__mode.__write = 1;
+ /* The buffer size is one less than MAXLEN
+ so we have space for the null terminator. */
+ f.__bufp = f.__buffer = (char *) s;
+ f.__bufsize = maxlen - 1;
+ f.__put_limit = f.__buffer + f.__bufsize;
+ f.__get_limit = f.__buffer;
+ /* After the buffer is full (MAXLEN characters have been written),
+ any more characters written will go to the bit bucket. */
+ f.__room_funcs = __default_room_functions;
+ f.__io_funcs.__write = NULL;
+ f.__seen = 1;
+
+ done = vfprintf(&f, format, arg);
+ *f.__bufp = '\0';
+
+ return done;
+}
+weak_alias (__vsnprintf, vsnprintf)