diff options
Diffstat (limited to 'sbin/devd/devd.c')
| -rw-r--r-- | sbin/devd/devd.c | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/sbin/devd/devd.c b/sbin/devd/devd.c deleted file mode 100644 index d607232..0000000 --- a/sbin/devd/devd.c +++ /dev/null @@ -1,223 +0,0 @@ -/*- - * Copyright (c) 2002 M. Warner Losh. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * DEVD control daemon. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/types.h> - -#include <dirent.h> -#include <errno.h> -#include <err.h> -#include <fcntl.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#include "devd.h" - -#define CF "/etc/devd.conf" - -extern FILE *yyin; -extern int lineno; - -int dflag; -int romeo_must_die = 0; -struct file_list_head dirlist = TAILQ_HEAD_INITIALIZER(dirlist); - -static void event_loop(void); -static void parse(void); -static void parse_config_file(const char *fn); -static void parse_files_in_dir(const char *dirname); -static void reset_config(void); -static void usage(void); - -void -add_directory(const char *dir) -{ - struct file_list *elm; - - elm = malloc(sizeof(*elm)); - elm->path = strdup(dir); - TAILQ_INSERT_TAIL(&dirlist, elm, fl_link); -} - -static void -reset_config(void) -{ - struct file_list *flp; - - TAILQ_FOREACH(flp, &dirlist, fl_link) { - free(flp->path); - free(flp); - } -} - -static void -parse_config_file(const char *fn) -{ - if (dflag) - printf("Parsing %s\n", fn); - yyin = fopen(fn, "r"); - if (yyin == NULL) - err(1, "Cannot open config file %s", fn); - if (yyparse() != 0) - errx(1, "Cannot parse %s at line %d", fn, lineno); - fclose(yyin); -} - -static void -parse_files_in_dir(const char *dirname) -{ - DIR *dirp; - struct dirent *dp; - char path[PATH_MAX]; - - if (dflag) - printf("Parsing files in %s\n", dirname); - dirp = opendir(dirname); - if (dirp == NULL) - return; - readdir(dirp); /* Skip . */ - readdir(dirp); /* Skip .. */ - while ((dp = readdir(dirp)) != NULL) { - if (strcmp(dp->d_name + dp->d_namlen - 5, ".conf") == 0) { - snprintf(path, sizeof(path), "%s/%s", - dirname, dp->d_name); - parse_config_file(path); - } - } -} - -static void -parse(void) -{ - struct file_list *flp; - - parse_config_file(CF); - TAILQ_FOREACH(flp, &dirlist, fl_link) { - parse_files_in_dir(flp->path); - } -} - -static void -process_event(const char *buffer) -{ - char type; - char cmd[1024]; - char *sp; - - // Ignore unknown devices for now. - if (*buffer == '?') - return; - type = *buffer++; - sp = strchr(buffer, ' '); - if (sp == NULL) - return; /* Can't happen? */ - *sp = '\0'; - snprintf(cmd, sizeof(cmd), "/etc/devd-generic %s %s", buffer, - type == '+' ? "start" : "stop"); - if (dflag) - printf("Trying '%s'\n", cmd); - system(cmd); -} - -static void -event_loop(void) -{ - int rv; - int fd; - char buffer[1024 + 1]; /* XXX */ - - fd = open("/dev/devctl", O_RDONLY); /* XXX */ - if (fd == -1) - err(1, "Can't open devctl"); - if (fcntl(fd, F_SETFD, FD_CLOEXEC) != 0) - err(1, "Can't set close-on-exec flag"); - while (1) { - if (romeo_must_die) - break; - rv = read(fd, buffer, sizeof(buffer) - 1); - if (rv > 0) { - buffer[rv] = '\0'; - while (buffer[--rv] == '\n') - buffer[rv] = '\0'; - process_event(buffer); - } else if (rv < 0) { - if (errno != EINTR) - break; - } else { - /* EOF */ - break; - } - } - close(fd); -} - -static void -gensighand(int foo __unused) -{ - romeo_must_die++; -} - -static void -usage() -{ - fprintf(stderr, "usage: %s [-d]", getprogname()); - exit(1); -} - -int -main(int argc, char **argv) -{ - int ch; - - while ((ch = getopt(argc, argv, "d")) != -1) { - switch (ch) { - case 'd': - dflag++; - break; - default: - usage(); - } - } - - reset_config(); - parse(); - if (!dflag) - daemon(0, 0); - event_loop(); - signal(SIGHUP, gensighand); - signal(SIGINT, gensighand); - signal(SIGTERM, gensighand); - return (0); -} |
