summaryrefslogtreecommitdiffstats
path: root/private/crt32/stdio/scanf.c
diff options
context:
space:
mode:
Diffstat (limited to 'private/crt32/stdio/scanf.c')
-rw-r--r--private/crt32/stdio/scanf.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/private/crt32/stdio/scanf.c b/private/crt32/stdio/scanf.c
new file mode 100644
index 000000000..f9c3f39d9
--- /dev/null
+++ b/private/crt32/stdio/scanf.c
@@ -0,0 +1,86 @@
+/***
+*scanf.c - read formatted data from stdin
+*
+* Copyright (c) 1985-1991, Microsoft Corporation. All rights reserved.
+*
+*Purpose:
+* defines scanf() - reads formatted data from stdin
+*
+*Revision History:
+* 09-02-83 RN initial version
+* 04-13-87 JCR added const to declaration
+* 06-24-87 JCR (1) Made declaration conform to ANSI prototype and use
+* the va_ macros; (2) removed SS_NE_DS conditionals.
+* 11-04-87 JCR Multi-thread support
+* 12-11-87 JCR Added "_LOAD_DS" to declaration
+* 05-27-88 PHG Merged DLL and normal versions
+* 06-15-88 JCR Near reference to _iob[] entries; improve REG variables
+* 08-17-89 GJF Clean up, now specific to OS/2 2.0 (i.e., 386 flat
+* model). Also fixed copyright and indents.
+* 02-15-90 GJF Fixed copyright
+* 03-19-90 GJF Made calling type _CALLTYPE2, added #include
+* <cruntime.h> and removed #include <register.h>.
+* 07-23-90 SBM Replaced <assertm.h> by <assert.h>
+* 10-03-90 GJF New-style function declarator.
+*
+*******************************************************************************/
+
+#include <cruntime.h>
+#include <stdio.h>
+#include <assert.h>
+#include <stdarg.h>
+#include <file2.h>
+#include <internal.h>
+#include <os2dll.h>
+
+/***
+*int scanf(format, ...) - read formatted data from stdin
+*
+*Purpose:
+* Reads formatted data from stdin into arguments. _input does the real
+* work here.
+*
+*Entry:
+* char *format - format string
+* followed by list of pointers to storage for the data read. The number
+* and type are controlled by the format string.
+*
+*Exit:
+* returns number of fields read and assigned
+*
+*Exceptions:
+*
+*******************************************************************************/
+
+int _CALLTYPE2 scanf (
+ const char *format,
+ ...
+ )
+/*
+ * stdin 'SCAN', 'F'ormatted
+ */
+{
+ REG1 FILE *stream = stdin;
+ REG2 int retval;
+#ifdef MTHREAD
+ int index;
+#endif
+
+ va_list arglist;
+
+ va_start(arglist, format);
+
+ assert(format != NULL);
+
+#ifdef MTHREAD
+ index = _iob_index(stream);
+#endif
+
+ _lock_str(index);
+
+ retval = (_input(stream,format,arglist));
+
+ _unlock_str(index);
+
+ return(retval);
+}