From 35a201cc8ef0c3f5b2df88d2e528aabee1048348 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>
Date: Fri, 30 Apr 2021 18:47:09 +0200
Subject: Initial/Final commit

---
 .../libmariadb/my_vsnprintf.c                      | 119 +++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 mariadb-connector-c-v_2.3.7/libmariadb/my_vsnprintf.c

(limited to 'mariadb-connector-c-v_2.3.7/libmariadb/my_vsnprintf.c')

diff --git a/mariadb-connector-c-v_2.3.7/libmariadb/my_vsnprintf.c b/mariadb-connector-c-v_2.3.7/libmariadb/my_vsnprintf.c
new file mode 100644
index 0000000..46cbc9d
--- /dev/null
+++ b/mariadb-connector-c-v_2.3.7/libmariadb/my_vsnprintf.c
@@ -0,0 +1,119 @@
+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+   
+   This 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.
+   
+   This 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 this library; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+   MA 02111-1301, USA */
+
+#include "mysys_priv.h"
+#include "mysys_err.h"
+#include <m_string.h>
+#include <stdarg.h>
+#include <m_ctype.h>
+
+
+int my_snprintf(char* to, size_t n, const char* fmt, ...)
+{
+  int result;
+  va_list args;
+  va_start(args,fmt);
+  result= my_vsnprintf(to, n, fmt, args);
+  va_end(args);
+  return result;
+}
+
+
+int my_vsnprintf(char *to, size_t n, const char* fmt, va_list ap)
+{
+  char *start=to, *end=to+n-1;
+  for (; *fmt ; fmt++)
+  {
+    if (fmt[0] != '%')
+    {
+      if (to == end)			/* End of buffer */
+	break;
+      *to++= *fmt;			/* Copy ordinary char */
+      continue;
+    }
+    /* Skipp if max size is used (to be compatible with printf) */
+    fmt++;
+    while (isdigit(*fmt) || *fmt == '.' || *fmt == '-')
+      fmt++;
+    if (*fmt == 'l')
+      fmt++;
+    if (*fmt == 's')				/* String parameter */
+    {
+      reg2 char	*par = va_arg(ap, char *);
+      uint plen;
+      if (!par) par = (char*)"(null)";
+      plen = (uint) strlen(par);
+      if ((uint) (end-to) > plen)	/* Replace if possible */
+      {
+	to=strmov(to,par);
+	continue;
+      }
+    }
+    else if (*fmt == 'd' || *fmt == 'u')	/* Integer parameter */
+    {
+      register int iarg;
+      if ((uint) (end-to) < 16)
+	break;
+      iarg = va_arg(ap, int);
+      if (*fmt == 'd')
+	to=int10_to_str((long) iarg,to, -10);
+      else
+	to=int10_to_str((long) (uint) iarg,to,10);
+      continue;
+    }
+    /* We come here on '%%', unknown code or too long parameter */
+    if (to == end)
+      break;
+    *to++='%';				/* % used as % or unknown code */
+  }
+  *to='\0';				/* End of errmessage */
+  return (uint) (to - start);
+}
+
+
+#ifdef MAIN
+static void my_printf(const char * fmt, ...)
+{
+  char buf[32];
+  int n;
+  va_list ar;
+  va_start(ar, fmt);
+  n = my_vsnprintf(buf, sizeof(buf),fmt, ar);
+  printf(buf);
+  printf("n=%d, strlen=%d\n", n, strlen(buf));
+  va_end(ar);
+}
+
+
+int main()
+{
+  
+  my_printf("Hello\n");
+  my_printf("Hello int, %d\n", 1);
+  my_printf("Hello string '%s'\n", "I am a string");
+  my_printf("Hello hack hack hack hack hack hack hack %d\n", 1);
+  my_printf("Hello %d hack  %d\n", 1, 4);
+  my_printf("Hello %d hack hack hack hack hack %d\n", 1, 4);
+  my_printf("Hello '%s' hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh\n", "hack");
+  my_printf("Hello hhhhhhhhhhhhhh %d sssssssssssssss\n", 1);
+  my_printf("Hello  %u\n", 1);
+  my_printf("conn %ld to: '%-.64s' user: '%-.32s' host:\
+ `%-.64s' (%-.64s)", 1, 0,0,0,0);
+  return 0;
+}
+#endif
+
-- 
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