/****************************************************************************
- * Copyright (c) 1998,1999 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2012,2013 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 *
****************************************************************************/
/****************************************************************************
- * Author: Thomas E. Dickey <dickey@clark.net> 1997 *
+ * Author: Thomas E. Dickey 1997-on *
****************************************************************************/
#include <curses.priv.h>
#include <ctype.h>
-MODULE_ID("$Id: safe_sprintf.c,v 1.11 1999/09/11 18:03:27 tom Exp $")
+MODULE_ID("$Id: safe_sprintf.c,v 1.27 2013/01/20 01:04:32 tom Exp $")
#if USE_SAFE_SPRINTF
-typedef enum { Flags, Width, Prec, Type, Format } PRINTF;
+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)
static int
_nc_printf_length(const char *fmt, va_list ap)
{
- size_t length = BUFSIZ;
- char *buffer;
- char *format;
- int len = 0;
-
- if (fmt == 0 || *fmt == '\0')
- return -1;
- if ((format = typeMalloc(char, strlen(fmt)+1)) == 0)
- return -1;
- if ((buffer = typeMalloc(char, length)) == 0) {
- free(format);
- return -1;
- }
+ size_t length = BUFSIZ;
+ char *buffer;
+ char *format;
+ int len = 0;
+ size_t fmt_len;
+ char fmt_arg[BUFSIZ];
- 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(*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(&format[--f], "%d", ival);
- f = strlen(format);
- } else if (isalpha(*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;
+ 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;
+ }
+ _nc_SPRINTF(fmt_arg,
+ _nc_SLIMIT(sizeof(fmt_arg))
+ "%d", ival);
+ fmt_len += strlen(fmt_arg);
+ if ((format = _nc_doalloc(format, fmt_len)) == 0) {
+ free(buffer);
+ return -1;
+ }
+ --f;
+ _nc_STRCPY(&format[f], fmt_arg, fmt_len - f);
+ 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;
+ }
}
- len += (int)strlen(buffer);
- } else {
- fmt++;
- len++;
+ 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':
+ _nc_SPRINTF(buffer, _nc_SLIMIT(length) format, ival);
+ break;
+ case 'f':
+ _nc_SPRINTF(buffer, _nc_SLIMIT(length) format, fval);
+ break;
+ default:
+ _nc_SPRINTF(buffer, _nc_SLIMIT(length) format, pval);
+ break;
+ }
+ len += (int) strlen(buffer);
+ } else {
+ fmt++;
+ len++;
}
+ }
- free(buffer);
- free(format);
- return 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.
*/
-char *
-_nc_printf_string(const char *fmt, va_list ap)
+NCURSES_EXPORT(char *)
+NCURSES_SP_NAME(_nc_printf_string) (NCURSES_SP_DCLx
+ const char *fmt,
+ va_list ap)
{
+ char *result = 0;
+
+ if (fmt != 0) {
#if USE_SAFE_SPRINTF
- char *buf = 0;
- int len = _nc_printf_length(fmt, ap);
+ va_list ap2;
+ int len;
- if (len > 0) {
- if ((buf = typeMalloc(char, len+1)) == 0)
- return(0);
- vsprintf(buf, fmt, ap);
+ begin_va_copy(ap2, ap);
+ len = _nc_printf_length(fmt, ap2);
+ end_va_copy(ap2);
+
+ 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
- static int rows, cols;
- static char *buf;
- static size_t len;
-
- if (screen_lines > rows || screen_columns > cols) {
- if (screen_lines > rows) rows = screen_lines;
- if (screen_columns > cols) cols = screen_columns;
- len = (rows * (cols + 1)) + 1;
- buf = typeRealloc(char, len, buf);
- if (buf == 0) {
- return(0);
- }
+#define MyCols _nc_globals.safeprint_cols
+#define MyRows _nc_globals.safeprint_rows
+
+ if (screen_lines(SP_PARM) > MyRows || screen_columns(SP_PARM) > MyCols) {
+ if (screen_lines(SP_PARM) > MyRows)
+ MyRows = screen_lines(SP_PARM);
+ if (screen_columns(SP_PARM) > MyCols)
+ MyCols = screen_columns(SP_PARM);
+ my_length = (size_t) (MyRows * (MyCols + 1)) + 1;
+ my_buffer = typeRealloc(char, my_length, my_buffer);
}
- if (buf != 0) {
+ if (my_buffer != 0) {
# if HAVE_VSNPRINTF
- vsnprintf(buf, len, fmt, ap); /* GNU extension */
+ vsnprintf(my_buffer, my_length, fmt, ap); /* GNU extension */
# else
- vsprintf(buf, fmt, ap); /* ANSI */
+ vsprintf(my_buffer, fmt, ap); /* ANSI */
# endif
+ result = my_buffer;
}
#endif
- return buf;
+ } else if (my_buffer != 0) { /* see _nc_freeall() */
+ free(my_buffer);
+ my_buffer = 0;
+ my_length = 0;
+ }
+ return result;
}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(char *)
+_nc_printf_string(const char *fmt, va_list ap)
+{
+ return NCURSES_SP_NAME(_nc_printf_string) (CURRENT_SCREEN, fmt, ap);
+}
+#endif
projects / ncurses.git / blobdiff