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less: update line input so that it doesn't interfere with

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screen update. Makes "man bash", [enter], [/],
<enter search pattern>, [enter] more usable - manpage
draws as you enter the pattern! Yay!!
less: fix bug where backspace wasn't actually deleting chars
less: "examine file with empty name" doesn't abort anymore.
libbb: add "all fatal signals" mask.

getch_nowait                                           -     207    +207
status_print                                           -     105    +105
examine_file                                          64      87     +23
move_cursor                                            -      16     +16
m_status_print                                       185     195     +10
less_main                                           1656    1663      +7
decode_format_string                                 790     795      +5
test_main                                            403     405      +2
process0_stdin                                       247     249      +2
passwd_main                                         1070    1072      +2
less_gets                                            196     178     -18
buffer_print                                         169      71     -98
less_getch                                           362     138    -224
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 7/3 up/down: 379/-340)           Total: 39 bytes
   text    data     bss     dec     hex filename
 798329     740    7484  806553   c4e99 busybox_old
 798368     740    7484  806592   c4ec0 busybox_unstripped
This commit is contained in:
Denis Vlasenko
2008-02-23 01:25:38 +00:00
parent 86620756d2
commit 33196372be
2 changed files with 82 additions and 46 deletions
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29
include/libbb.h
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@@ -274,9 +274,32 @@ char *xrealloc_getcwd_or_warn(char *cwd);
char *xmalloc_follow_symlinks(const char *path);
//enum {
// BB_SIGS_FATAL = ,
//};
enum {
/* bb_signals(BB_SIGS_FATAL, handler) catches all signals which
* otherwise would kill us, except for those resulting from bugs:
* SIGSEGV, SIGILL, SIGFPE.
* Other fatal signals not included (TODO?):
* SIGBUS Bus error (bad memory access)
* SIGPOLL Pollable event. Synonym of SIGIO
* SIGPROF Profiling timer expired
* SIGSYS Bad argument to routine
* SIGTRAP Trace/breakpoint trap
*/
BB_SIGS_FATAL = 0
+ (1 << SIGHUP)
+ (1 << SIGINT)
+ (1 << SIGTERM)
+ (1 << SIGPIPE) // Write to pipe with no readers
+ (1 << SIGQUIT) // Quit from keyboard
+ (1 << SIGABRT) // Abort signal from abort(3)
+ (1 << SIGALRM) // Timer signal from alarm(2)
+ (1 << SIGVTALRM) // Virtual alarm clock
+ (1 << SIGXCPU) // CPU time limit exceeded
+ (1 << SIGXFSZ) // File size limit exceeded
+ (1 << SIGUSR1) // Yes kids, these are also fatal!
+ (1 << SIGUSR2)
+ 0,
};
void bb_signals(int sigs, void (*f)(int));
/* Unlike signal() and bb_signals, sets handler with sigaction()
* and in a way that while signal handler is run, no other signals