projects / thirdparty / bash.git / blame
| Commit | Line | Data |
|---|---|---|
| 726f6388 JA |
1 | /* vprint.c -- v[fs]printf() for 4.[23] BSD systems. */ |
| 2 | ||
| 3 | /* Copyright (C) 1987,1989 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | This file is part of GNU Bash, the Bourne Again SHell. | |
| 6 | ||
| 7 | Bash is free software; you can redistribute it and/or modify it under | |
| 8 | the terms of the GNU General Public License as published by the Free | |
| 9 | Software Foundation; either version 1, or (at your option) any later | |
| 10 | version. | |
| 11 | ||
| 12 | Bash is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 | for more details. | |
| 16 | ||
| 17 | You should have received a copy of the GNU General Public License along | |
| 18 | with Bash; see the file COPYING. If not, write to the Free Software | |
| 19 | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 20 | ||
| ccc6cda3 JA |
21 | #include "config.h" |
| 22 | ||
| 23 | #if defined (USE_VFPRINTF_EMULATION) | |
| 24 | ||
| 726f6388 JA |
25 | #include <stdio.h> |
| 26 | ||
| 27 | #if !defined (NULL) | |
| 28 | # if defined (__STDC__) | |
| ccc6cda3 | 29 | # define NULL ((void *)0) |
| 726f6388 JA |
30 | # else |
| 31 | # define NULL 0x0 | |
| 32 | # endif /* __STDC__ */ | |
| 33 | #endif /* !NULL */ | |
| 34 | ||
| 35 | /* | |
| 36 | * Beware! Don't trust the value returned by either of these functions; it | |
| 37 | * seems that pre-4.3-tahoe implementations of _doprnt () return the first | |
| 38 | * argument, i.e. a char *. | |
| 39 | */ | |
| 40 | #include <varargs.h> | |
| 41 | ||
| 42 | int | |
| 43 | vfprintf (iop, fmt, ap) | |
| 44 | FILE *iop; | |
| 45 | char *fmt; | |
| 46 | va_list ap; | |
| 47 | { | |
| 48 | int len; | |
| 49 | char localbuf[BUFSIZ]; | |
| 50 | ||
| 51 | if (iop->_flag & _IONBF) | |
| 52 | { | |
| 53 | iop->_flag &= ~_IONBF; | |
| 54 | iop->_ptr = iop->_base = localbuf; | |
| 55 | len = _doprnt (fmt, ap, iop); | |
| 56 | (void) fflush (iop); | |
| 57 | iop->_flag |= _IONBF; | |
| 58 | iop->_base = NULL; | |
| 59 | iop->_bufsiz = 0; | |
| 60 | iop->_cnt = 0; | |
| 61 | } | |
| 62 | else | |
| 63 | len = _doprnt (fmt, ap, iop); | |
| 64 | return (ferror (iop) ? EOF : len); | |
| 65 | } | |
| 66 | ||
| 67 | /* | |
| 68 | * Ditto for vsprintf | |
| 69 | */ | |
| 70 | int | |
| 71 | vsprintf (str, fmt, ap) | |
| 72 | char *str, *fmt; | |
| 73 | va_list ap; | |
| 74 | { | |
| 75 | FILE f; | |
| 76 | int len; | |
| 77 | ||
| 78 | f._flag = _IOWRT|_IOSTRG; | |
| 79 | f._ptr = str; | |
| 80 | f._cnt = 32767; | |
| 81 | len = _doprnt (fmt, ap, &f); | |
| 82 | *f._ptr = 0; | |
| 83 | return (len); | |
| 84 | } | |
| ccc6cda3 | 85 | #endif /* USE_VFPRINTF_EMULATION */ |