321 |
|
sflock(F_UNLCK); /* release sync file */ |
322 |
|
return(1); |
323 |
|
} |
324 |
< |
if (scanf("%d %d", xp, yp) == 2) /* use stdin */ |
325 |
< |
return(1); |
326 |
< |
fprintf(stderr, "%s: input format error\n", progname); |
327 |
< |
exit(cleanup(1)); |
324 |
> |
return(scanf("%d %d", xp, yp) == 2); /* use stdin */ |
325 |
|
} |
326 |
|
|
327 |
|
|
481 |
|
/* lock file section so NFS doesn't mess up */ |
482 |
|
fls.l_whence = 0; |
483 |
|
fls.l_type = F_WRLCK; |
484 |
< |
fcntl(outfd, F_SETLKW, &fls); |
484 |
> |
if (fcntl(outfd, F_SETLKW, &fls) < 0) |
485 |
> |
filerr("lock"); |
486 |
|
#endif |
487 |
|
/* write new piece to file */ |
488 |
|
if (lseek(outfd, fls.l_start, 0) == -1) |
489 |
< |
goto seekerr; |
489 |
> |
filerr("seek"); |
490 |
|
if (hmult == 1) { |
491 |
|
if (writebuf(outfd, (char *)pbuf, |
492 |
|
vr*hr*sizeof(COLR)) != vr*hr*sizeof(COLR)) |
493 |
< |
goto writerr; |
493 |
> |
filerr("write"); |
494 |
|
} else |
495 |
|
for (y = 0; y < vr; y++) { |
496 |
|
if (writebuf(outfd, (char *)(pbuf+y*hr), |
497 |
|
hr*sizeof(COLR)) != hr*sizeof(COLR)) |
498 |
< |
goto writerr; |
498 |
> |
filerr("write"); |
499 |
|
if (y < vr-1 && lseek(outfd, |
500 |
|
(long)(hmult-1)*hr*sizeof(COLR), |
501 |
|
1) == -1) |
502 |
< |
goto seekerr; |
502 |
> |
filerr("seek"); |
503 |
|
} |
504 |
|
#if NFS |
505 |
|
fls.l_type = F_UNLCK; /* release lock */ |
506 |
< |
fcntl(outfd, F_SETLKW, &fls); |
506 |
> |
if (fcntl(outfd, F_SETLKW, &fls) < 0) |
507 |
> |
filerr("lock"); |
508 |
|
#endif |
509 |
|
if (syncfp != NULL) { /* record what's been done */ |
510 |
|
sflock(F_WRLCK); |
521 |
|
if (pid == -1) /* didn't fork or fork failed */ |
522 |
|
return(0); |
523 |
|
_exit(0); /* else exit child process (releasing locks) */ |
524 |
< |
seekerr: |
525 |
< |
fprintf(stderr, "%s: seek error on file \"%s\"\n", progname, outfile); |
526 |
< |
_exit(1); |
527 |
< |
writerr: |
528 |
< |
fprintf(stderr, "%s: write error on file \"%s\"\n", progname, outfile); |
524 |
> |
} |
525 |
> |
|
526 |
> |
|
527 |
> |
filerr(t) /* report file error and exit */ |
528 |
> |
char *t; |
529 |
> |
{ |
530 |
> |
extern char *sys_errlist[]; |
531 |
> |
|
532 |
> |
fprintf(stderr, "%s: %s error on file \"%s\": %s\n", |
533 |
> |
progname, t, outfile, sys_errlist[errno]); |
534 |
|
_exit(1); |
535 |
|
} |
536 |
|
|