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Make improvements

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- Clean up sigaction() code
- Add a port scanner example
- Introduce a ParseCidr() API
- Clean up our futex abstraction code
- Fix a harmless integer overflow in ParseIp()
- Use kernel semaphores on NetBSD to make threads much faster
This commit is contained in:
Justine Tunney 2022-11-07 02:22:09 -08:00
parent 539bddce8c
commit c995838e5c
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GPG key ID: BE714B4575D6E328
107 changed files with 1085 additions and 492 deletions
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55
libc/calls/struct/sigaction.internal.h
View file

@ -1,10 +1,65 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_INTERNAL_H_
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/mem/alloca.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
struct sigaction_linux {
void *sa_handler;
uint64_t sa_flags;
void *sa_restorer;
uint32_t sa_mask[2];
};
struct sigaction_freebsd {
void *sa_handler;
uint32_t sa_flags;
uint32_t sa_mask[4];
};
struct sigaction_openbsd {
void *sa_handler;
uint32_t sa_mask[1];
uint32_t sa_flags;
};
struct sigaction_netbsd {
void *sa_handler;
uint32_t sa_mask[4];
uint32_t sa_flags;
};
struct sigaction_xnu_in {
void *sa_handler;
void *sa_restorer;
uint32_t sa_mask[1];
uint32_t sa_flags;
};
struct sigaction_xnu_out {
void *sa_handler;
uint32_t sa_mask[1];
uint32_t sa_flags;
};
union metasigaction {
struct sigaction cosmo;
struct sigaction_linux linux;
struct sigaction_freebsd freebsd;
struct sigaction_openbsd openbsd;
struct sigaction_netbsd netbsd;
struct sigaction_xnu_in xnu_in;
struct sigaction_xnu_out xnu_out;
};
void __sigenter_xnu(int, struct siginfo *, void *) hidden;
void __sigenter_wsl(int, struct siginfo *, void *) hidden;
void __sigenter_netbsd(int, struct siginfo *, void *) hidden;
void __sigenter_freebsd(int, struct siginfo *, void *) hidden;
void __sigenter_openbsd(int, struct siginfo *, void *) hidden;
const char *DescribeSigaction(char[256], int, const struct sigaction *);
#define DescribeSigaction(rc, sa) DescribeSigaction(alloca(256), rc, sa)