18 /* Only use fseeko/ftello if they are both there. */
20 #if defined (HAVE_FSEEKO) && defined (HAVE_FTELLO)
28 #if defined (MSDOS) && !defined (GO32)
29 #ifndef NON_UNIX_STDIO
30 #define NON_UNIX_STDIO
42 { FILE *ufd; /*0=unconnected*/
44 #if !(defined (MSDOS) && !defined (GO32))
48 int url; /*0=sequential*/
49 flag useek; /*true=can backspace, use dir, ...*/
51 flag urw; /* (1 for can read) | (2 for can write) */
54 flag uwrt; /*last io was write*/
59 extern cilist *f__elist; /*active external io list*/
60 extern flag f__reading,f__external,f__sequential,f__formatted;
64 extern int (*f__getn)(); /* for formatted input */
65 extern void (*f__putn)(); /* for formatted output */
67 extern long f__inode();
68 extern VOID sig_die();
69 extern int (*f__donewrec)(), t_putc(), x_wSL();
70 extern int c_sfe(), err__fl(), xrd_SL(), f__putbuf();
76 extern int (*f__getn)(void); /* for formatted input */
77 extern void (*f__putn)(int); /* for formatted output */
78 extern void x_putc(int);
79 extern long f__inode(char*,int*);
80 extern void sig_die(char*,int);
81 extern void f__fatal(int,char*);
82 extern int t_runc(alist*);
83 extern int f__nowreading(unit*), f__nowwriting(unit*);
84 extern int fk_open(int,int,ftnint);
85 extern int en_fio(void);
86 extern void f_init(void);
87 extern int (*f__donewrec)(void), t_putc(int), x_wSL(void);
88 extern void b_char(char*,char*,ftnlen), g_char(char*,ftnlen,char*);
89 extern int c_sfe(cilist*), z_rnew(void);
90 extern int isatty(int);
91 extern int err__fl(int,int,char*);
92 extern int xrd_SL(void);
93 extern int f__putbuf(int);
98 extern int (*f__doend)(Void);
99 extern FILE *f__cf; /*current file*/
100 extern unit *f__curunit; /*current unit*/
101 extern unit f__units[];
102 #define err(f,m,s) do {if(f) {f__init &= ~2; errno= m;} else f__fatal(m,s); return(m);} while(0)
103 #define errfl(f,m,s) do {return err__fl((int)f,m,s);} while(0)
108 extern int f__recpos; /*position in current record*/
109 extern int f__cursor; /* offset to move to */
110 extern int f__hiwater; /* so TL doesn't confuse us */
121 #define buf_end(x) (x->_flag & _IONBF ? x->_ptr : x->_base + BUFSIZ)