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Diffstat (limited to 'externals/mysql/strings/my_vsnprintf.c')
-rw-r--r--externals/mysql/strings/my_vsnprintf.c252
1 files changed, 0 insertions, 252 deletions
diff --git a/externals/mysql/strings/my_vsnprintf.c b/externals/mysql/strings/my_vsnprintf.c
deleted file mode 100644
index ade53252db9..00000000000
--- a/externals/mysql/strings/my_vsnprintf.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/* Copyright (C) 2000 MySQL AB
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; version 2 of the License.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
-
-#include <my_global.h>
-#include <m_string.h>
-#include <stdarg.h>
-#include <m_ctype.h>
-
-/*
- Limited snprintf() implementations
-
- exported to plugins as a service, see the detailed documentation
- around my_snprintf_service_st
-*/
-
-size_t my_vsnprintf(char *to, size_t n, const char* fmt, va_list ap)
-{
- char *start=to, *end=to+n-1;
- size_t length, width;
- uint pre_zero, have_longlong;
-
- for (; *fmt ; fmt++)
- {
- if (*fmt != '%')
- {
- if (to == end) /* End of buffer */
- break;
- *to++= *fmt; /* Copy ordinary char */
- continue;
- }
- fmt++; /* skip '%' */
- /* Read max fill size (only used with %d and %u) */
- if (*fmt == '-')
- fmt++;
- length= width= 0;
- pre_zero= have_longlong= 0;
- if (*fmt == '*')
- {
- fmt++;
- length= va_arg(ap, int);
- }
- else
- for (; my_isdigit(&my_charset_latin1, *fmt); fmt++)
- {
- length= length * 10 + (uint)(*fmt - '0');
- if (!length)
- pre_zero= 1; /* first digit was 0 */
- }
- if (*fmt == '.')
- {
- fmt++;
- if (*fmt == '*')
- {
- fmt++;
- width= va_arg(ap, int);
- }
- else
- {
- for (; my_isdigit(&my_charset_latin1, *fmt); fmt++)
- width= width * 10 + (uint)(*fmt - '0');
- }
- }
- else
- width= SIZE_T_MAX;
- if (*fmt == 'l')
- {
- fmt++;
- if (*fmt != 'l')
- have_longlong= (sizeof(long) == sizeof(longlong));
- else
- {
- fmt++;
- have_longlong= 1;
- }
- }
- else if (*fmt == 'z')
- {
- fmt++;
- have_longlong= (sizeof(size_t) == sizeof(longlong));
- }
- if (*fmt == 's') /* String parameter */
- {
- reg2 char *par= va_arg(ap, char *);
- size_t plen, left_len= (size_t) (end - to) + 1;
- if (!par)
- par = (char*) "(null)";
- plen= strnlen(par, width);
- if (left_len <= plen)
- plen = left_len - 1;
- to= strnmov(to,par,plen);
- continue;
- }
- else if (*fmt == 'b') /* Buffer parameter */
- {
- char *par = va_arg(ap, char *);
- DBUG_ASSERT(to <= end);
- if (to + width + 1 > end)
- width= end - to - 1; /* sign doesn't matter */
- memmove(to, par, width);
- to+= width;
- continue;
- }
- else if (*fmt == 'f' || *fmt == 'g')
- {
- double d= va_arg(ap, double);
- if (width == SIZE_T_MAX)
- width= FLT_DIG; /* width not set, use default */
- else if (width >= NOT_FIXED_DEC)
- width= NOT_FIXED_DEC - 1; /* max.precision for my_fcvt() */
- width= min(width, (size_t)(end-to) - 1);
-
- if (*fmt == 'f')
- to+= my_fcvt(d, (int)width , to, NULL);
- else
- to+= my_gcvt(d, MY_GCVT_ARG_DOUBLE, (int) width , to, NULL);
- }
- else if (*fmt == 'd' || *fmt == 'u' || *fmt == 'x' || *fmt == 'X' ||
- *fmt == 'p')
- {
- /* Integer parameter */
- longlong larg;
- size_t res_length, to_length;
- char *store_start= to, *store_end;
- char buff[32];
- if (*fmt == 'p')
- {
- have_longlong= (sizeof(void *) == sizeof(longlong));
- }
-
- if ((to_length= (size_t) (end-to)) < 16 || length)
- store_start= buff;
- if (have_longlong)
- larg = va_arg(ap,longlong);
- else if (*fmt == 'd')
- larg = va_arg(ap, int);
- else
- larg= va_arg(ap, uint);
- if (*fmt == 'd')
- store_end= longlong10_to_str(larg, store_start, -10);
- else if (*fmt == 'u')
- store_end= longlong10_to_str(larg, store_start, 10);
- else if (*fmt == 'p')
- {
- store_start[0]= '0';
- store_start[1]= 'x';
- store_end= ll2str(larg, store_start + 2, 16, 0);
- }
- else
- {
- DBUG_ASSERT(*fmt == 'X' || *fmt =='x');
- store_end= ll2str(larg, store_start, 16, (*fmt == 'X'));
- }
-
- if ((res_length= (size_t) (store_end - store_start)) > to_length)
- break; /* num doesn't fit in output */
- /* If %#d syntax was used, we have to pre-zero/pre-space the string */
- if (store_start == buff)
- {
- length= min(length, to_length);
- if (res_length < length)
- {
- size_t diff= (length- res_length);
- bfill(to, diff, pre_zero ? '0' : ' ');
- to+= diff;
- }
- bmove(to, store_start, res_length);
- }
- to+= res_length;
- continue;
- }
- else if (*fmt == 'c') /* Character parameter */
- {
- register int larg;
- if (to == end)
- break;
- larg = va_arg(ap, int);
- *to++= (char) larg;
- continue;
- }
-
- /* We come here on '%%', unknown code or too long parameter */
- if (to == end)
- break;
- *to++='%'; /* % used as % or unknown code */
- }
- DBUG_ASSERT(to <= end);
- *to='\0'; /* End of errmessage */
- return (size_t) (to - start);
-}
-
-
-size_t my_snprintf(char* to, size_t n, const char* fmt, ...)
-{
- size_t result;
- va_list args;
- va_start(args,fmt);
- result= my_vsnprintf(to, n, fmt, args);
- va_end(args);
- return result;
-}
-
-#ifdef MAIN
-#define OVERRUN_SENTRY 250
-static void my_printf(const char * fmt, ...)
-{
- char buf[33];
- int n;
- va_list ar;
- va_start(ar, fmt);
- buf[sizeof(buf)-1]=OVERRUN_SENTRY;
- n = my_vsnprintf(buf, sizeof(buf)-1,fmt, ar);
- printf(buf);
- printf("n=%d, strlen=%d\n", n, strlen(buf));
- if ((uchar) buf[sizeof(buf)-1] != OVERRUN_SENTRY)
- {
- fprintf(stderr, "Buffer overrun\n");
- abort();
- }
- 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("Hex: %lx '%6lx'\n", 32, 65);
- my_printf("conn %ld to: '%-.64s' user: '%-.32s' host:\
- `%-.64s' (%-.64s)", 1, 0,0,0,0);
- return 0;
-}
-#endif