diff options
Diffstat (limited to 'contrib/ncurses/ncurses/base/safe_sprintf.c')
-rw-r--r-- | contrib/ncurses/ncurses/base/safe_sprintf.c | 264 |
1 files changed, 0 insertions, 264 deletions
diff --git a/contrib/ncurses/ncurses/base/safe_sprintf.c b/contrib/ncurses/ncurses/base/safe_sprintf.c deleted file mode 100644 index 8fc5d89..0000000 --- a/contrib/ncurses/ncurses/base/safe_sprintf.c +++ /dev/null @@ -1,264 +0,0 @@ -/**************************************************************************** - * Copyright (c) 1998-2003,2007 Free Software Foundation, Inc. * - * * - * Permission is hereby granted, free of charge, to any person obtaining a * - * copy of this software and associated documentation files (the * - * "Software"), to deal in the Software without restriction, including * - * without limitation the rights to use, copy, modify, merge, publish, * - * distribute, distribute with modifications, sublicense, and/or sell * - * copies of the Software, and to permit persons to whom the Software is * - * furnished to do so, subject to the following conditions: * - * * - * The above copyright notice and this permission notice shall be included * - * in all copies or substantial portions of the Software. * - * * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * - * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * - * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * - * * - * Except as contained in this notice, the name(s) of the above copyright * - * holders shall not be used in advertising or otherwise to promote the * - * sale, use or other dealings in this Software without prior written * - * authorization. * - ****************************************************************************/ - -/**************************************************************************** - * Author: Thomas E. Dickey <dickey@clark.net> 1997 * - ****************************************************************************/ - -#include <curses.priv.h> -#include <ctype.h> - -MODULE_ID("$Id: safe_sprintf.c,v 1.20 2007/04/21 22:28:06 tom Exp $") - -#if USE_SAFE_SPRINTF - -typedef enum { - Flags, Width, Prec, Type, Format -} PRINTF; - -#define VA_INTGR(type) ival = va_arg(ap, type) -#define VA_FLOAT(type) fval = va_arg(ap, type) -#define VA_POINT(type) pval = (void *)va_arg(ap, type) - -/* - * Scan a variable-argument list for printf to determine the number of - * characters that would be emitted. - */ -static int -_nc_printf_length(const char *fmt, va_list ap) -{ - size_t length = BUFSIZ; - char *buffer; - char *format; - int len = 0; - size_t fmt_len; - char fmt_arg[BUFSIZ]; - - if (fmt == 0 || *fmt == '\0') - return 0; - fmt_len = strlen(fmt) + 1; - if ((format = typeMalloc(char, fmt_len)) == 0) - return -1; - if ((buffer = typeMalloc(char, length)) == 0) { - free(format); - return -1; - } - - while (*fmt != '\0') { - if (*fmt == '%') { - static char dummy[] = ""; - PRINTF state = Flags; - char *pval = dummy; /* avoid const-cast */ - double fval = 0.0; - int done = FALSE; - int ival = 0; - int prec = -1; - int type = 0; - int used = 0; - int width = -1; - size_t f = 0; - - format[f++] = *fmt; - while (*++fmt != '\0' && len >= 0 && !done) { - format[f++] = *fmt; - - if (isdigit(UChar(*fmt))) { - int num = *fmt - '0'; - if (state == Flags && num != 0) - state = Width; - if (state == Width) { - if (width < 0) - width = 0; - width = (width * 10) + num; - } else if (state == Prec) { - if (prec < 0) - prec = 0; - prec = (prec * 10) + num; - } - } else if (*fmt == '*') { - VA_INTGR(int); - if (state == Flags) - state = Width; - if (state == Width) { - width = ival; - } else if (state == Prec) { - prec = ival; - } - sprintf(fmt_arg, "%d", ival); - fmt_len += strlen(fmt_arg); - if ((format = realloc(format, fmt_len)) == 0) { - return -1; - } - strcpy(&format[--f], fmt_arg); - f = strlen(format); - } else if (isalpha(UChar(*fmt))) { - done = TRUE; - switch (*fmt) { - case 'Z': /* FALLTHRU */ - case 'h': /* FALLTHRU */ - case 'l': /* FALLTHRU */ - done = FALSE; - type = *fmt; - break; - case 'i': /* FALLTHRU */ - case 'd': /* FALLTHRU */ - case 'u': /* FALLTHRU */ - case 'x': /* FALLTHRU */ - case 'X': /* FALLTHRU */ - if (type == 'l') - VA_INTGR(long); - else if (type == 'Z') - VA_INTGR(size_t); - else - VA_INTGR(int); - used = 'i'; - break; - case 'f': /* FALLTHRU */ - case 'e': /* FALLTHRU */ - case 'E': /* FALLTHRU */ - case 'g': /* FALLTHRU */ - case 'G': /* FALLTHRU */ - VA_FLOAT(double); - used = 'f'; - break; - case 'c': - VA_INTGR(int); - used = 'i'; - break; - case 's': - VA_POINT(char *); - if (prec < 0) - prec = strlen(pval); - if (prec > (int) length) { - length = length + prec; - buffer = typeRealloc(char, length, buffer); - if (buffer == 0) { - free(format); - return -1; - } - } - used = 'p'; - break; - case 'p': - VA_POINT(void *); - used = 'p'; - break; - case 'n': - VA_POINT(int *); - used = 0; - break; - default: - break; - } - } else if (*fmt == '.') { - state = Prec; - } else if (*fmt == '%') { - done = TRUE; - used = 'p'; - } - } - format[f] = '\0'; - switch (used) { - case 'i': - sprintf(buffer, format, ival); - break; - case 'f': - sprintf(buffer, format, fval); - break; - default: - sprintf(buffer, format, pval); - break; - } - len += (int) strlen(buffer); - } else { - fmt++; - len++; - } - } - - free(buffer); - free(format); - return len; -} -#endif - -#define my_buffer _nc_globals.safeprint_buf -#define my_length _nc_globals.safeprint_used - -/* - * Wrapper for vsprintf that allocates a buffer big enough to hold the result. - */ -NCURSES_EXPORT(char *) -_nc_printf_string(const char *fmt, va_list ap) -{ - char *result = 0; - - if (fmt != 0) { -#if USE_SAFE_SPRINTF - int len = _nc_printf_length(fmt, ap); - - if ((int) my_length < len + 1) { - my_length = 2 * (len + 1); - my_buffer = typeRealloc(char, my_length, my_buffer); - } - if (my_buffer != 0) { - *my_buffer = '\0'; - if (len >= 0) { - vsprintf(my_buffer, fmt, ap); - } - result = my_buffer; - } -#else -#define MyCols _nc_globals.safeprint_cols -#define MyRows _nc_globals.safeprint_rows - - if (screen_lines > MyRows || screen_columns > MyCols) { - if (screen_lines > MyRows) - MyRows = screen_lines; - if (screen_columns > MyCols) - MyCols = screen_columns; - my_length = (MyRows * (MyCols + 1)) + 1; - my_buffer = typeRealloc(char, my_length, my_buffer); - } - - if (my_buffer != 0) { -# if HAVE_VSNPRINTF - vsnprintf(my_buffer, my_length, fmt, ap); /* GNU extension */ -# else - vsprintf(my_buffer, fmt, ap); /* ANSI */ -# endif - result = my_buffer; - } -#endif - } else if (my_buffer != 0) { /* see _nc_freeall() */ - free(my_buffer); - my_buffer = 0; - my_length = 0; - } - return result; -} |