marke it as such and ignore it forever after.
(struct File_spec): New member.
(recheck): Initialize new member.
(tail_file): Likewise.
(tail_forever): Skip the file if it's marked as ignorable.
Revert most of 1999-10-20 change. Instead, ...
(IS_TAILABLE_FILE_TYPE): Define to produce similar result.
(recheck): Use it here.
(tail_file): Use it here.
building on a suggestion by Charles Randall.
(fillbuf): Skip memmove if it would be a no-op,
as many memmove implementations are slow in that case.
Don't examine leftover bytes for eolchar, since they may be left
over from a previous file, and we want to read from this file.
(sort): At end of file, if there is more input and buffer room,
concatenate the next input file.
(count_entry): Factor out common code (pop_dir), and call the new
function instead.
Move declaration of global, `stat_buf' into this function.
(du_files): Don't stat `.' or call save_cwd, since count_entry
never returns with a changed working directory.
(O_NONBLOCK): Define to O_NDELAY if not defined.
(touch): Open with O_NONBLOCK, so one can touch a fifo without hanging.
Reported by Eric G. Miller via Michael Stone.
[Instead, merely give examples showing how to accomplish the same
task with fewer limitations using existing tools. ]
Suggestion from Bruno Haible.
(valid_format): Rename from check_format.
exit when it found a loop. Now it continues and outputs all items.
(exit_status): New variable.
(loop): New varibale.
(count_items, scan_zeroes): Change return type to int.
(detect_loop): Complete rewrite to correctly implement detection
of loops. Also change return type to int.
(recurse_tree): Stop if ACTION returns non-zero. This involves
changing the return type of this function and ACTION to int.
(walk_tree): Change return type of ACTION to int.
(tsort): Continue sort after a loop has been detected (and
broken). Set exit_status to 1 if a loop was detected.
(main): Use exit_status to determine exit code.
(intconv): New variable.
(usage): Update.
(main): Call scan_arg instead of scan_double_arg. Call check_format
before scan_arg.
(scan_int_arg, scan_arg): New functions.
(check_format): Add intconv argument. Accept %d, %u, %o, %x, %X.
(print_numbers): If intconv is true, pass an int argument to printf.
(Filter): Rename from PFL.
(non_neg_strtol): Remove function.
(find_bracketed_repeat): Use xstrtoul instead of non_neg_strtol.
(squeeze_filter, set_initialize, main): Use size_t and ssize_t in
place of long and int in several decls.
(read_and_delete, read_and_xlate): Likewise, and remove assertion.
(hard_LC_CTYPE): Remove.
(keylist): Renamed from keyhead. Now a pointer, not a
mostly-unused struct. All uses changed.
(findlines, keycompare, CMP_WITH_IGNORE, compare, checkfp, mergefps,
sort): Tune and use a more consistent style for reallocation.
(keycompare, main): Don't worry about LC_CTYPE;
it's buggy with multibyte chars anyway.
(compare): Invoke alloca (0) after each call to keycompare,
not just the ones that return nonzero. This avoids a memory
leak on architectures without builtin alloca that occurs
sometimes when a file contains all duplicate lines.
Don't use SA_INTERRUPT to decide whether to call sigaction, as
POSIX.1 doesn't require SA_INTERRUPT and some systems
(e.g. Solaris 7) don't define it. Use SA_NOCLDSTOP instead;
it's been part of POSIX.1 since day 1 (in 1988).
Don't use SA_INTERRUPT to decide whether to call sigaction, as
POSIX.1 doesn't require SA_INTERRUPT and some systems
(e.g. Solaris 7) don't define it. Use SA_NOCLDSTOP instead;
it's been part of POSIX.1 since day 1 (in 1988).
