vfprint.c (1075B)
1 /* 2 * The authors of this software are Rob Pike and Ken Thompson. 3 * Copyright (c) 2002 by Lucent Technologies. 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose without fee is hereby granted, provided that this entire notice 6 * is included in all copies of any software which is or includes a copy 7 * or modification of this software and in all copies of the supporting 8 * documentation for such software. 9 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED 10 * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE 11 * ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY 12 * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. 13 */ 14 #include <stdarg.h> 15 #include "plan9.h" 16 #include "fmt.h" 17 #include "fmtdef.h" 18 19 int 20 vfprint(int fd, const char *fmt, va_list args) 21 { 22 Fmt f; 23 char buf[256]; 24 int n; 25 26 fmtfdinit(&f, fd, buf, sizeof(buf)); 27 va_copy(f.args,args); 28 n = dofmt(&f, fmt); 29 va_end(f.args); 30 if(n > 0 && __fmtFdFlush(&f) == 0) 31 return -1; 32 return n; 33 }