mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
f7ff77d865
- Invent iso8601us() for faster timestamps - Improve --strace descriptions of sigset_t - Rebuild the Landlock Make bootstrap binary - Introduce MODE=sysv for non-Windows builds - Permit OFD fcntl() locks under pledge(flock) - redbean can now protect your kernel from ddos - Have vfork() fallback to sys_fork() not fork() - Change kmalloc() to not die when out of memory - Improve documentation for some termios functions - Rewrite putenv() and friends to conform to POSIX - Fix linenoise + strace verbosity issue on Windows - Fix regressions in our ability to show backtraces - Change redbean SetHeader() to no-op if value is nil - Improve fcntl() so SQLite locks work in non-WAL mode - Remove some unnecessary work during fork() on Windows - Create redbean-based SSL reverse proxy for IPv4 TurfWar - Fix ape/apeinstall.sh warning when using non-bash shells - Add ProgramTrustedIp(), and IsTrustedIp() APIs to redbean - Support $PWD, $UID, $GID, and $EUID in command interpreter - Introduce experimental JTqFpD APE prefix for non-Windows builds - Invent blackhole daemon for firewalling IP addresses via UNIX named socket - Add ProgramTokenBucket(), AcquireToken(), and CountTokens() APIs to redbean
78 lines
3.1 KiB
C
78 lines
3.1 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2021 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/calls/struct/sigset.h"
|
|
#include "libc/calls/struct/sigset.internal.h"
|
|
#include "libc/dce.h"
|
|
#include "libc/intrin/asan.internal.h"
|
|
#include "libc/intrin/kprintf.h"
|
|
#include "libc/intrin/popcnt.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/sysv/consts/limits.h"
|
|
#include "libc/sysv/consts/sig.h"
|
|
|
|
#define N 128
|
|
|
|
#define append(...) o += ksnprintf(buf + o, N - o, __VA_ARGS__)
|
|
|
|
const char *(DescribeSigset)(char buf[N], int rc, const sigset_t *ss) {
|
|
bool gotsome;
|
|
const char *s;
|
|
int sig, o = 0;
|
|
sigset_t sigset;
|
|
|
|
if (rc == -1) return "n/a";
|
|
if (!ss) return "NULL";
|
|
if ((!IsAsan() && kisdangerous(ss)) ||
|
|
(IsAsan() && !__asan_is_valid(ss, sizeof(*ss)))) {
|
|
ksnprintf(buf, N, "%p", ss);
|
|
return buf;
|
|
}
|
|
|
|
if (sigcountset(ss) > 16) {
|
|
append("~");
|
|
sigemptyset(&sigset);
|
|
for (sig = 1; sig <= _NSIG; ++sig) {
|
|
if (!sigismember(ss, sig)) {
|
|
sigset.__bits[(sig - 1) >> 6] |= 1ull << ((sig - 1) & 63);
|
|
}
|
|
}
|
|
} else {
|
|
sigset = *ss;
|
|
}
|
|
|
|
append("{");
|
|
gotsome = false;
|
|
for (sig = 1; sig <= _NSIG; ++sig) {
|
|
if (sigismember(&sigset, sig) > 0) {
|
|
if (gotsome) {
|
|
append(",");
|
|
} else {
|
|
gotsome = true;
|
|
}
|
|
s = strsignal(sig);
|
|
if (s[0] == 'S' && s[1] == 'I' && s[2] == 'G') {
|
|
s += 3;
|
|
}
|
|
append("%s", s);
|
|
}
|
|
}
|
|
append("}");
|
|
|
|
return buf;
|
|
}
|