| 1 | #include <sys/types.h>
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| 2 | #include <stdio.h>
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| 3 | #include <errno.h>
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| 4 | #ifndef NULL
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| 5 | /* ANSI C */
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| 6 | #include <stddef.h>
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| 7 | #endif
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| 8 | #ifdef STDC_HEADERS
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| 9 | #include <string.h>
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| 10 | #endif
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| 11 |
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| 12 | #ifndef SEEK_SET
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| 13 | #define SEEK_SET 0
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| 14 | #define SEEK_CUR 1
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| 15 | #define SEEK_END 2
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| 16 | #endif
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| 17 |
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| 18 | /* Only use fseeko/ftello if they are both there. */
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| 19 |
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| 20 | #if defined (HAVE_FSEEKO) && defined (HAVE_FTELLO)
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| 21 | #define FSEEK fseeko
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| 22 | #define FTELL ftello
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| 23 | #else
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| 24 | #define FSEEK fseek
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| 25 | #define FTELL ftell
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| 26 | #endif
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| 27 |
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| 28 | #if defined (MSDOS) && !defined (GO32)
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| 29 | #ifndef NON_UNIX_STDIO
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| 30 | #define NON_UNIX_STDIO
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| 31 | #endif
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| 32 | #endif
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| 33 |
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| 34 | #ifdef UIOLEN_int
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| 35 | typedef int uiolen;
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| 36 | #else
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| 37 | typedef long uiolen;
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| 38 | #endif
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| 39 |
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| 40 | /*units*/
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| 41 | typedef struct
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| 42 | {
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| 43 | FILE *ufd; /*0=unconnected */
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| 44 | char *ufnm;
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| 45 | #if !(defined (MSDOS) && !defined (GO32))
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| 46 | long uinode;
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| 47 | int udev;
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| 48 | #endif
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| 49 | int url; /*0=sequential */
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| 50 | flag useek; /*true=can backspace, use dir, ... */
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| 51 | flag ufmt;
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| 52 | flag urw; /* (1 for can read) | (2 for can write) */
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| 53 | flag ublnk;
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| 54 | flag uend;
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| 55 | flag uwrt; /*last io was write */
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| 56 | flag uscrtch;
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| 57 | }
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| 58 | unit;
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| 59 |
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| 60 | extern int f__init;
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| 61 | extern cilist *f__elist; /*active external io list */
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| 62 | extern flag f__reading, f__external, f__sequential, f__formatted;
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| 63 | extern int (*f__getn) (void); /* for formatted input */
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| 64 | extern void (*f__putn) (int); /* for formatted output */
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| 65 | extern void x_putc (int);
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| 66 | extern long f__inode (char *, int *);
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| 67 | extern void sig_die (char *, int);
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| 68 | extern void f__fatal (int, char *);
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| 69 | extern int t_runc (alist *);
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| 70 | extern int f__nowreading (unit *), f__nowwriting (unit *);
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| 71 | extern int fk_open (int, int, ftnint);
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| 72 | extern int en_fio (void);
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| 73 | extern void f_init (void);
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| 74 | extern int (*f__donewrec) (void), t_putc (int), x_wSL (void);
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| 75 | extern void b_char (char *, char *, ftnlen), g_char (char *, ftnlen, char *);
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| 76 | extern int c_sfe (cilist *), z_rnew (void);
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| 77 | extern int isatty (int);
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| 78 | extern int err__fl (int, int, char *);
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| 79 | extern int xrd_SL (void);
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| 80 | extern int f__putbuf (int);
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| 81 | extern int (*f__doend) (void);
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| 82 | extern FILE *f__cf; /*current file */
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| 83 | extern unit *f__curunit; /*current unit */
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| 84 | extern unit f__units[];
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| 85 | #define err(f,m,s) do {if(f) {f__init &= ~2; errno= m;} else f__fatal(m,s); return(m);} while(0)
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| 86 | #define errfl(f,m,s) do {return err__fl((int)f,m,s);} while(0)
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| 87 |
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| 88 | /*Table sizes*/
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| 89 | #define MXUNIT 100
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| 90 |
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| 91 | extern int f__recpos; /*position in current record */
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| 92 | extern int f__cursor; /* offset to move to */
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| 93 | extern int f__hiwater; /* so TL doesn't confuse us */
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| 94 |
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| 95 | #define WRITE 1
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| 96 | #define READ 2
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| 97 | #define SEQ 3
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| 98 | #define DIR 4
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| 99 | #define FMT 5
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| 100 | #define UNF 6
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| 101 | #define EXT 7
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| 102 | #define INT 8
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| 103 |
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| 104 | #define buf_end(x) (x->_flag & _IONBF ? x->_ptr : x->_base + BUFSIZ)
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