projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| bae7117f WH |
1 | #include "stdio.h" |
| 2 | #include "errno.h" | |
| 3 | #ifndef NULL | |
| 4 | /* ANSI C */ | |
| 5 | #include "stddef.h" | |
| 6 | #endif | |
| 7 | ||
| 8 | #ifndef SEEK_SET | |
| 9 | #define SEEK_SET 0 | |
| 10 | #define SEEK_CUR 1 | |
| 11 | #define SEEK_END 2 | |
| 12 | #endif | |
| 13 | ||
| 14 | #ifdef MSDOS | |
| 15 | #ifndef NON_UNIX_STDIO | |
| 16 | #define NON_UNIX_STDIO | |
| 17 | #endif | |
| 18 | #endif | |
| 19 | ||
| 20 | #ifdef UIOLEN_int | |
| 21 | typedef int uiolen; | |
| 22 | #else | |
| 23 | typedef long uiolen; | |
| 24 | #endif | |
| 25 | ||
| 26 | /*units*/ | |
| 27 | typedef struct | |
| 28 | { FILE *ufd; /*0=unconnected*/ | |
| 29 | char *ufnm; | |
| 30 | #ifndef MSDOS | |
| 31 | long uinode; | |
| 32 | int udev; | |
| 33 | #endif | |
| 34 | int url; /*0=sequential*/ | |
| 35 | flag useek; /*true=can backspace, use dir, ...*/ | |
| 36 | flag ufmt; | |
| 37 | flag uprnt; | |
| 38 | flag ublnk; | |
| 39 | flag uend; | |
| 40 | flag uwrt; /*last io was write*/ | |
| 41 | flag uscrtch; | |
| 42 | } unit; | |
| 43 | ||
| 44 | extern flag f__init; | |
| 45 | extern cilist *f__elist; /*active external io list*/ | |
| 46 | extern flag f__reading,f__external,f__sequential,f__formatted; | |
| 47 | #undef Void | |
| 48 | #ifdef KR_headers | |
| 49 | #define Void /*void*/ | |
| 50 | extern int (*f__getn)(),(*f__putn)(); /*for formatted io*/ | |
| 51 | extern long f__inode(); | |
| 52 | extern VOID sig_die(); | |
| 53 | extern int (*f__donewrec)(), t_putc(), x_wSL(); | |
| 54 | extern int c_sfe(), err_fl(), xrd_SL(); | |
| 55 | #else | |
| 56 | #define Void void | |
| 57 | #ifdef __cplusplus | |
| 58 | extern "C" { | |
| 59 | #endif | |
| 60 | extern int (*f__getn)(void),(*f__putn)(int); /*for formatted io*/ | |
| 61 | extern long f__inode(char*,int*); | |
| 62 | extern void sig_die(char*,int); | |
| 63 | extern void f__fatal(int,char*); | |
| 64 | extern int t_runc(alist*); | |
| 65 | extern int f__nowreading(unit*), f__nowwriting(unit*); | |
| 66 | extern int fk_open(int,int,ftnint); | |
| 67 | extern int en_fio(void); | |
| 68 | extern void f_init(void); | |
| 69 | extern int (*f__donewrec)(void), t_putc(int), x_wSL(void); | |
| 70 | extern void b_char(char*,char*,ftnlen), g_char(char*,ftnlen,char*); | |
| 71 | extern int c_sfe(cilist*), z_rnew(void); | |
| 72 | extern int isatty(int); | |
| 73 | extern int err__fl(int,int,char*); | |
| 74 | extern int xrd_SL(void); | |
| 75 | #ifdef __cplusplus | |
| 76 | } | |
| 77 | #endif | |
| 78 | #endif | |
| 79 | extern int (*f__doend)(Void); | |
| 80 | extern FILE *f__cf; /*current file*/ | |
| 81 | extern unit *f__curunit; /*current unit*/ | |
| 82 | extern unit f__units[]; | |
| 83 | #define err(f,m,s) {if(f) errno= m; else f__fatal(m,s); return(m);} | |
| 84 | #define errfl(f,m,s) return err__fl(f,m,s) | |
| 85 | ||
| 86 | /*Table sizes*/ | |
| 87 | #define MXUNIT 100 | |
| 88 | ||
| 89 | extern int f__recpos; /*position in current record*/ | |
| 90 | extern int f__cursor; /* offset to move to */ | |
| 91 | extern int f__hiwater; /* so TL doesn't confuse us */ | |
| 92 | ||
| 93 | #define WRITE 1 | |
| 94 | #define READ 2 | |
| 95 | #define SEQ 3 | |
| 96 | #define DIR 4 | |
| 97 | #define FMT 5 | |
| 98 | #define UNF 6 | |
| 99 | #define EXT 7 | |
| 100 | #define INT 8 | |
| 101 | ||
| 102 | #define buf_end(x) (x->_flag & _IONBF ? x->_ptr : x->_base + BUFSIZ) |