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This commit is contained in:
Tim Riker 2006-01-25 00:08:53 +00:00
parent f64ff682a3
commit c1ef7bdd8d
254 changed files with 2002 additions and 2002 deletions
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32
util-linux/mdev.c
View file

@ -1,7 +1,7 @@
/* vi:set ts=4:
*
*
* mdev - Mini udev for busybox
*
*
* Copyright 2005 Rob Landley <rob@landley.net>
* Copyright 2005 Frank Sorenson <frank@tuxrocks.com>
*
@ -38,21 +38,21 @@ static void make_device(char *path)
RESERVE_CONFIG_BUFFER(temp,PATH_MAX);
/* Try to read major/minor string */
snprintf(temp, PATH_MAX, "%s/dev", path);
fd = open(temp, O_RDONLY);
len = read(fd, temp, PATH_MAX-1);
if (len<1) goto end;
close(fd);
/* Determine device name, type, major and minor */
device_name = strrchr(path, '/') + 1;
type = strncmp(path+5, "block/" ,6) ? S_IFCHR : S_IFBLK;
if(sscanf(temp, "%d:%d", &major, &minor) != 2) goto end;
/* If we have a config file, look up permissions for this device */
if (ENABLE_FEATURE_MDEV_CONF) {
char *conf,*pos,*end;
@ -67,7 +67,7 @@ static void make_device(char *path)
for (pos=conf;pos-conf<len;) {
int field;
char *end2;
line++;
/* find end of this line */
for(end=pos;end-conf<len && *end!='\n';end++);
@ -88,11 +88,11 @@ static void make_device(char *path)
regmatch_t off;
int result;
/* Is this it? */
/* Is this it? */
xregcomp(&match,regex,REG_EXTENDED);
result=regexec(&match,device_name,1,&off,0);
regfree(&match);
/* If not this device, skip rest of line */
if(result || off.rm_so
|| off.rm_eo!=strlen(device_name))
@ -159,7 +159,7 @@ found_device:
bb_perror_msg_and_die("mknod %s failed", temp);
if (ENABLE_FEATURE_MDEV_CONF) chown(temp,uid,gid);
end:
RELEASE_CONFIG_BUFFER(temp);
}
@ -177,7 +177,7 @@ static void find_dev(char *path)
for (;;) {
struct dirent *entry = readdir(dir);
if (!entry) break;
/* Skip "." and ".." (also skips hidden files, which is ok) */
@ -189,12 +189,12 @@ static void find_dev(char *path)
find_dev(path);
path[len] = 0;
}
/* If there's a dev entry, mknod it */
if (!strcmp(entry->d_name, "dev")) make_device(path);
}
closedir(dir);
}
@ -205,7 +205,7 @@ int mdev_main(int argc, char *argv[])
RESERVE_CONFIG_BUFFER(temp,PATH_MAX);
/* Scan */
if (argc == 2 && !strcmp(argv[1],"-s")) {
strcpy(temp,"/sys/block");
find_dev(temp);
@ -218,7 +218,7 @@ int mdev_main(int argc, char *argv[])
action = getenv("ACTION");
env_path = getenv("DEVPATH");
if (!action || !env_path) bb_show_usage();
if (!strcmp(action, "add")) {
sprintf(temp, "/sys%s", env_path);
make_device(temp);