mirror of
https://github.com/RGBCube/serenity
synced 2025-05-17 12:45:06 +00:00
153ea704af
It only works for sending a signal to a process that's in userspace code. We implement reception by synthesizing a PUSHA+PUSHF in the receiving process (operating on values in the TSS.) The TSS CS:EIP is then rerouted to the signal handler and a tiny return trampoline is constructed in a dedicated region in the receiving process. Also hacked up /bin/kill to be able to send arbitrary signals (kill -N PID)
104 lines
2.1 KiB
C++
104 lines
2.1 KiB
C++
#pragma once
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extern "C" {
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namespace Unix {
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#define SEEK_SET 0
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#define SEEK_CUR 1
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#define SEEK_END 2
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#define SIGINT 2
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#define SIGKILL 9
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#define SIGSEGV 11
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#define SIGTERM 15
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typedef dword dev_t;
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typedef dword ino_t;
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typedef dword mode_t;
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typedef dword nlink_t;
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typedef dword uid_t;
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typedef dword gid_t;
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#ifdef SERENITY
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typedef void (*__sighandler_t)(int);
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typedef __sighandler_t sighandler_t;
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typedef dword sigset_t;
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typedef void siginfo_t;
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struct sigaction {
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union {
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void (*sa_handler)(int);
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void (*sa_sigaction)(int, siginfo_t*, void*);
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};
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sigset_t sa_mask;
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int sa_flags;
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void (*sa_restorer)(void);
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};
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#define SA_NOCLDSTOP 1
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#define SA_NOCLDWAIT 2
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#define SA_SIGINFO 4
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#define SIG_BLOCK 0
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#define SIG_UNBLOCK 1
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#define SIG_SETMASK 2
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#define SIGHUP 1
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#define SIGINT 2
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#define SIGQUIT 3
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#define SIGILL 4
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#define SIGTRAP 5
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#define SIGABRT 6
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#define SIGBUS 7
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#define SIGFPE 8
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#define SIGKILL 9
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#define SIGUSR1 10
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#define SIGSEGV 11
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#define SIGUSR2 12
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#define SIGPIPE 13
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#define SIGALRM 14
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#define SIGTERM 15
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#define SIGCONT 18
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#define SIGTSTP 20
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#define SIGTTIN 21
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#define SIGTTOU 22
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#endif
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#ifdef SERENITY
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// FIXME: Support 64-bit offsets!
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typedef signed_dword off_t;
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typedef unsigned int time_t;
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#else
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typedef signed_qword off_t;
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typedef ::time_t time_t;
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#endif
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typedef dword blksize_t;
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typedef dword blkcnt_t;
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typedef dword size_t;
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typedef signed_dword ssize_t;
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struct stat {
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dev_t st_dev; /* ID of device containing file */
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ino_t st_ino; /* inode number */
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mode_t st_mode; /* protection */
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nlink_t st_nlink; /* number of hard links */
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uid_t st_uid; /* user ID of owner */
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gid_t st_gid; /* group ID of owner */
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dev_t st_rdev; /* device ID (if special file) */
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off_t st_size; /* total size, in bytes */
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blksize_t st_blksize; /* blocksize for file system I/O */
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blkcnt_t st_blocks; /* number of 512B blocks allocated */
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time_t st_atime; /* time of last access */
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time_t st_mtime; /* time of last modification */
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time_t st_ctime; /* time of last status change */
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};
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}
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}
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