release/src/router/libncurses/ncurses/widechar/lib_slk_wset.c

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  29 /****************************************************************************
  30  *  Author: Thomas E. Dickey                                                *
  31  ****************************************************************************/
  32
  33 /*
  34  *      lib_slk_wset.c
  35  *      Set soft label text.
  36  */
  37 #include <curses.priv.h>
  38
  39 #if HAVE_WCTYPE_H
  40 #include <wctype.h>
  41 #endif
  42
  43 MODULE_ID("$Id: lib_slk_wset.c,v 1.11 2005/01/16 01:03:53 tom Exp $")
  44
  45 NCURSES_EXPORT(int)
  46 slk_wset(int i, const wchar_t *astr, int format)
  47 {
  48     int result = ERR;
  49     size_t arglen;
  50     const wchar_t *str;
  51     char *mystr;
  52     mbstate_t state;
  53
  54     T((T_CALLED("slk_wset(%d, %s, %d)"), i, _nc_viswbuf(astr), format));
  55
  56     init_mb(state);
  57     str = astr;
  58     if ((arglen = wcsrtombs(NULL, &str, 0, &state)) != (size_t) -1) {
  59         if ((mystr = (char *) _nc_doalloc(0, arglen + 1)) != 0) {
  60             str = astr;
  61             if (wcsrtombs(mystr, &str, arglen, &state) != (size_t) -1) {
  62                 /* glibc documentation claims that the terminating L'\0'
  63                  * is written, but it is not...
  64                  */
  65                 mystr[arglen] = 0;
  66                 result = slk_set(i, mystr, format);
  67             }
  68             free(mystr);
  69         }
  70     }
  71     returnCode(result);
  72 }