21 #if defined (MSDOS) && !defined (GO32)
27 extern char *f__r_mode[], *f__w_mode[];
31 integer f_end(a) alist *a;
33 integer f_end(alist *a)
38 f__fatal (131, "I/O recursion");
39 if(a->aunit>=MXUNIT || a->aunit<0) err(a->aerr,101,"endfile");
40 b = &f__units[a->aunit];
43 (void) sprintf(nbuf,"fort.%ld",a->aunit);
46 if (tf = fopen(nbuf, f__w_mode[0]))
50 close(creat(nbuf, 0666));
55 return(b->useek ? t_runc(a) : 0);
61 copy(from, len, to) char *from, *to; register long len;
63 copy(FILE *from, register long len, FILE *to)
69 while(fread(buf, len1 = len > BUFSIZ ? BUFSIZ : (int)len, 1, from)) {
70 if (!fwrite(buf, len1, 1, to))
72 if ((len -= len1) <= 0)
79 copy(from, len, to) char *from, *to; register long len;
81 copy(char *from, register long len, char *to)
88 if ((k = open(from, O_RDONLY)) < 0)
90 if ((tmp = creat(to,0666)) < 0)
92 while((n = read(k, buf, (size_t) (len > BUFSIZ ? BUFSIZ : (int)len))) > 0) {
93 if (write(tmp, buf, n) != n)
100 return n < 0 ? 1 : rc;
115 char nm[L_tmpnam+12]; /* extra space in case L_tmpnam is tiny */
118 #ifdef NON_UNIX_STDIO
125 b = &f__units[a->aunit];
127 return(0); /*don't truncate direct files*/
128 loc=ftell(bf = b->ufd);
129 fseek(bf,0L,SEEK_END);
131 if (loc >= len || b->useek == 0 || b->ufnm == NULL)
133 #ifdef NON_UNIX_STDIO
136 rewind(b->ufd); /* empty buffer */
139 #ifdef NON_UNIX_STDIO
140 if (!(bf = fopen(b->ufnm, f__w_mode[b->ufmt])))
142 if (close(creat(b->ufnm,0666)))
152 strcpy(nm,"tmp.FXXXXXX");
155 #ifdef NON_UNIX_STDIO
156 if (!(bf = fopen(b->ufnm, f__r_mode[0]))) {
161 if (!(tf = fopen(nm, f__w_mode[0])))
163 if (copy(bf, loc, tf)) {
168 if (!(bf = freopen(b->ufnm, f__w_mode[0], bf)))
170 if (!(tf = freopen(nm, f__r_mode[0], tf)))
172 if (copy(tf, loc, bf))
174 if (f__w_mode[0] != f__w_mode[b->ufmt]) {
175 if (!(bf = freopen(b->ufnm, f__w_mode[b->ufmt|2], bf)))
177 fseek(bf, loc, SEEK_SET);
185 if (copy(b->ufnm, loc, nm)
186 || copy(nm, loc, b->ufnm))
189 fseek(b->ufd, loc, SEEK_SET);
193 err(a->aerr,111,"endfile");