diff options
Diffstat (limited to 'contrib/libf2c/libI77/endfile.c')
| -rw-r--r-- | contrib/libf2c/libI77/endfile.c | 198 |
1 files changed, 94 insertions, 104 deletions
diff --git a/contrib/libf2c/libI77/endfile.c b/contrib/libf2c/libI77/endfile.c index 4c5a9dd..513f210 100644 --- a/contrib/libf2c/libI77/endfile.c +++ b/contrib/libf2c/libI77/endfile.c @@ -5,136 +5,126 @@ #include <sys/types.h> #include <unistd.h> -#ifdef KR_headers -extern char *strcpy(); -extern FILE *tmpfile(); -#else #undef abs #undef min #undef max #include <stdlib.h> #include <string.h> -#endif extern char *f__r_mode[], *f__w_mode[]; -#ifdef KR_headers -integer f_end(a) alist *a; -#else -integer f_end(alist *a) -#endif +integer +f_end (alist * a) { - unit *b; - FILE *tf; + unit *b; + FILE *tf; - if (f__init & 2) - f__fatal (131, "I/O recursion"); - if(a->aunit>=MXUNIT || a->aunit<0) err(a->aerr,101,"endfile"); - b = &f__units[a->aunit]; - if(b->ufd==NULL) { - char nbuf[10]; - sprintf(nbuf,"fort.%ld",(long)a->aunit); - if (tf = fopen(nbuf, f__w_mode[0])) - fclose(tf); - return(0); - } - b->uend=1; - return(b->useek ? t_runc(a) : 0); + if (f__init & 2) + f__fatal (131, "I/O recursion"); + if (a->aunit >= MXUNIT || a->aunit < 0) + err (a->aerr, 101, "endfile"); + b = &f__units[a->aunit]; + if (b->ufd == NULL) + { + char nbuf[10]; + sprintf (nbuf, "fort.%ld", (long) a->aunit); + if ((tf = fopen (nbuf, f__w_mode[0]))) + fclose (tf); + return (0); + } + b->uend = 1; + return (b->useek ? t_runc (a) : 0); } #ifndef HAVE_FTRUNCATE - static int -#ifdef KR_headers -copy(from, len, to) FILE *from, *to; register long len; -#else -copy(FILE *from, register long len, FILE *to) -#endif +static int +copy (FILE * from, register long len, FILE * to) { - int len1; - char buf[BUFSIZ]; + int len1; + char buf[BUFSIZ]; - while(fread(buf, len1 = len > BUFSIZ ? BUFSIZ : (int)len, 1, from)) { - if (!fwrite(buf, len1, 1, to)) - return 1; - if ((len -= len1) <= 0) - break; - } - return 0; - } + while (fread (buf, len1 = len > BUFSIZ ? BUFSIZ : (int) len, 1, from)) + { + if (!fwrite (buf, len1, 1, to)) + return 1; + if ((len -= len1) <= 0) + break; + } + return 0; +} #endif /* !defined(HAVE_FTRUNCATE) */ - int -#ifdef KR_headers -t_runc(a) alist *a; -#else -t_runc(alist *a) -#endif +int +t_runc (alist * a) { - off_t loc, len; - unit *b; - int rc; - FILE *bf; + off_t loc, len; + unit *b; + int rc; + FILE *bf; #ifndef HAVE_FTRUNCATE - FILE *tf; + FILE *tf; #endif /* !defined(HAVE_FTRUNCATE) */ - b = &f__units[a->aunit]; - if(b->url) - return(0); /*don't truncate direct files*/ - loc=FTELL(bf = b->ufd); - FSEEK(bf,0,SEEK_END); - len=FTELL(bf); - if (loc >= len || b->useek == 0 || b->ufnm == NULL) - return(0); + b = &f__units[a->aunit]; + if (b->url) + return (0); /*don't truncate direct files */ + loc = FTELL (bf = b->ufd); + FSEEK (bf, 0, SEEK_END); + len = FTELL (bf); + if (loc >= len || b->useek == 0 || b->ufnm == NULL) + return (0); #ifndef HAVE_FTRUNCATE - rc = 0; - fclose(b->ufd); - if (!loc) { - if (!(bf = fopen(b->ufnm, f__w_mode[b->ufmt]))) - rc = 1; - if (b->uwrt) - b->uwrt = 1; - goto done; - } - if (!(bf = fopen(b->ufnm, f__r_mode[0])) - || !(tf = tmpfile())) { + rc = 0; + fclose (b->ufd); + if (!loc) + { + if (!(bf = fopen (b->ufnm, f__w_mode[b->ufmt]))) + rc = 1; + if (b->uwrt) + b->uwrt = 1; + goto done; + } + if (!(bf = fopen (b->ufnm, f__r_mode[0])) || !(tf = tmpfile ())) + { #ifdef NON_UNIX_STDIO - bad: + bad: #endif - rc = 1; - goto done; - } - if (copy(bf, loc, tf)) { - bad1: - rc = 1; - goto done1; - } - if (!(bf = freopen(b->ufnm, f__w_mode[0], bf))) - goto bad1; - FSEEK(tf, 0, SEEK_SET); - if (copy(tf, loc, bf)) - goto bad1; - b->uwrt = 1; - b->urw = 2; + rc = 1; + goto done; + } + if (copy (bf, loc, tf)) + { + bad1: + rc = 1; + goto done1; + } + if (!(bf = freopen (b->ufnm, f__w_mode[0], bf))) + goto bad1; + FSEEK (tf, 0, SEEK_SET); + if (copy (tf, loc, bf)) + goto bad1; + b->uwrt = 1; + b->urw = 2; #ifdef NON_UNIX_STDIO - if (b->ufmt) { - fclose(bf); - if (!(bf = fopen(b->ufnm, f__w_mode[3]))) - goto bad; - FSEEK(bf,0,SEEK_END); - b->urw = 3; - } + if (b->ufmt) + { + fclose (bf); + if (!(bf = fopen (b->ufnm, f__w_mode[3]))) + goto bad; + FSEEK (bf, 0, SEEK_END); + b->urw = 3; + } #endif done1: - fclose(tf); + fclose (tf); done: - f__cf = b->ufd = bf; -#else /* !defined(HAVE_FTRUNCATE) */ - fflush(b->ufd); - rc = ftruncate(fileno(b->ufd), loc); - FSEEK(bf,loc,SEEK_SET); + f__cf = b->ufd = bf; +#else /* !defined(HAVE_FTRUNCATE) */ + fflush (b->ufd); + rc = ftruncate (fileno (b->ufd), loc); + FSEEK (bf, loc, SEEK_SET); #endif /* !defined(HAVE_FTRUNCATE) */ - if (rc) - err(a->aerr,111,"endfile"); - return 0; - } + if (rc) + err (a->aerr, 111, "endfile"); + return 0; +} |
