diff options
author | Xanadu <none@none> | 2010-09-07 01:26:57 +0200 |
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committer | Xanadu <none@none> | 2010-09-07 01:26:57 +0200 |
commit | 220c20729441931d26626f4370bbb613a9185e9e (patch) | |
tree | d93174fdc1f9e2e556aa4ef035657023063f08b2 /dep/mysqllite/strings/my_vsnprintf.c | |
parent | da5569bee68be1dcd416cdbca7584f9ef5e739ee (diff) |
BuildSystem/Windows: * Added 5.1.50 (GA) MySQL client sources for crosscompiling (or lazy) windows people.
* Added an option to autosearch for your own installed MySQL as before. Note that default setting is to use the internal MySQL.
* You can now build 32-bit even if your MySQL is x64 and vice versa.
* Recommended MySQL server version for use with provided MySQL client sources is 5.1.x.
* If your server version is different, let CMake autofind and use it instead (check EXTERNAL_MYSQL option)
--HG--
branch : trunk
Diffstat (limited to 'dep/mysqllite/strings/my_vsnprintf.c')
-rw-r--r-- | dep/mysqllite/strings/my_vsnprintf.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/dep/mysqllite/strings/my_vsnprintf.c b/dep/mysqllite/strings/my_vsnprintf.c new file mode 100644 index 00000000000..920022aae91 --- /dev/null +++ b/dep/mysqllite/strings/my_vsnprintf.c @@ -0,0 +1,225 @@ +/* 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 + + SYNOPSIS + my_vsnprintf() + to Store result here + n Store up to n-1 characters, followed by an end 0 + fmt printf format + ap Arguments + + IMPLEMENTION: + Supports following formats: + %#[l]d + %#[l]u + %#[l]x + %#.#b Local format; note first # is ignored and second is REQUIRED + %#.#s Note first # is ignored + + RETURN + length of result string +*/ + +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_long; + + 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_long= 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= ~0; + if (*fmt == 'l') + { + fmt++; + have_long= 1; + } + 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= (uint) 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 + abs(width) + 1 > end) + width= (uint) (end - to - 1); /* sign doesn't matter */ + memmove(to, par, abs(width)); + to+= width; + continue; + } + else if (*fmt == 'd' || *fmt == 'u'|| *fmt== 'x') /* Integer parameter */ + { + register long larg; + size_t res_length, to_length; + char *store_start= to, *store_end; + char buff[32]; + + if ((to_length= (size_t) (end-to)) < 16 || length) + store_start= buff; + if (have_long) + larg = va_arg(ap, long); + else + if (*fmt == 'd') + larg = va_arg(ap, int); + else + larg= (long) (uint) va_arg(ap, int); + if (*fmt == 'd') + store_end= int10_to_str(larg, store_start, -10); + else + if (*fmt== 'u') + store_end= int10_to_str(larg, store_start, 10); + else + store_end= int2str(larg, store_start, 16, 0); + 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 |