morpheus

suckless linux distro
git clone git://git.2f30.org/morpheus.git
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commit 1dc25793db15906ee4197974bc96d3f91989af59
parent 4fe3c8ccddabb7207a46672ac2d7212ba2304e64
Author: sin <sin@2f30.org>
Date:   Thu Feb  6 11:35:43 +0000

Do not embed sinit.c - use our git repo

Diffstat:
pkgs/sinit | 16++++++++++++----
stuff/sinit.c | 133-------------------------------------------------------------------------------
2 files changed, 12 insertions(+), 137 deletions(-)
diff --git a/pkgs/sinit b/pkgs/sinit @@ -1,13 +1,21 @@ +url=git://git.2f30.org/sinit + fetch() { - cp $top/stuff/sinit.c src + [ -d src/sinit ] || git clone $url src/sinit } build() { - pushd src - x86_64-linux-musl-gcc -o init sinit.c -static || return 1 + pushd src/sinit + make clean + make -j$nprocs CC=x86_64-linux-musl-gcc LDFLAGS=-static || return 1 popd } install() { - cp src/init $root/ + pushd src/sinit + make PREFIX=$root install + popd + pushd $root/bin + ln -sf sinit init + popd } diff --git a/stuff/sinit.c b/stuff/sinit.c @@ -1,133 +0,0 @@ -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/select.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <unistd.h> - -#define LEN(x) (sizeof (x) / sizeof *(x)) - -typedef union { - int i; - unsigned int ui; - float f; - const void *v; -} Arg; - -typedef struct { - const char *name; - void (*func)(const Arg *arg); - const Arg arg; -} Command; - -static void cmdpoweroff(const Arg *); -static void cmdreboot(const Arg *); -static void dispatchcmd(int); -static int spawn(const char *, char *const []); - -static const char *fifopath = "/var/run/sinit.fifo"; -static Command commands[] = { - { "poweroff", cmdpoweroff, {0} }, - { "reboot", cmdreboot, {0} }, -}; - -int -main(void) -{ - sigset_t set; - pid_t pid; - fd_set rfds; - int c, fd, n; - - if (getpid() != 1) - return EXIT_FAILURE; - - sigfillset(&set); - sigprocmask(SIG_BLOCK, &set, 0); - - pid = fork(); - if (pid < 0) - return EXIT_FAILURE; - if (pid > 0) - for (;;) - wait(&c); - - sigprocmask(SIG_UNBLOCK, &set, 0); - - spawn("/bin/rc", (char *[]){ "rc", NULL }); - - unlink(fifopath); - umask(0); - mkfifo(fifopath, 0600); - - fd = open(fifopath, O_RDWR | O_NONBLOCK); - if (fd >= 0) { - while (1) { - FD_ZERO(&rfds); - FD_SET(fd, &rfds); - n = select(fd + 1, &rfds, NULL, NULL, NULL); - if (n <= 0) - continue; - if (FD_ISSET(fd, &rfds)) - dispatchcmd(fd); - } - } - - /* can't reach */ - return EXIT_SUCCESS; -} - -static void -cmdpoweroff(const Arg *arg) -{ - spawn("/bin/rc.shutdown", (char *[]) { "rc", "poweroff", NULL }); -} - -static void -cmdreboot(const Arg *arg) -{ - spawn("/bin/rc.shutdown", (char *[]) { "rc", "reboot", NULL }); -} - -static void -dispatchcmd(int fd) -{ - int i; - char buf[BUFSIZ], *p; - ssize_t n; - - n = read(fd, buf, sizeof(buf) - 1); - if (n <= 0) - return; - buf[n] = '\0'; - p = strchr(buf, '\n'); - if (p) - *p = '\0'; - for (i = 0; i < LEN(commands); i++) { - if (strcmp(commands[i].name, buf) == 0) { - commands[i].func(&commands[i].arg); - break; - } - } -} - -static int -spawn(const char *file, char *const argv[]) -{ - pid_t pid; - - pid = fork(); - if (pid < 0) - return -1; - if (pid == 0) { - setsid(); - setpgid(0, 0); - execvp(file, argv); - _exit(errno == ENOENT ? 127 : 126); - } -}