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Diffstat (limited to 'miscutils/devfsd.c')
-rw-r--r--miscutils/devfsd.c179
1 files changed, 46 insertions, 133 deletions
diff --git a/miscutils/devfsd.c b/miscutils/devfsd.c
index 0aec942..dfb616a 100644
--- a/miscutils/devfsd.c
+++ b/miscutils/devfsd.c
@@ -322,13 +322,7 @@ static void msg_logger_and_die(int pri, const char* fmt, ...)
#define devfsd_error_msg(fmt, args...) bb_error_msg(fmt, ## args)
#define devfsd_perror_msg_and_die(fmt, args...) bb_perror_msg_and_die(fmt, ## args)
#define devfsd_error_msg_and_die(fmt, args...) bb_error_msg_and_die(fmt, ## args)
-#if defined(CONFIG_DEBUG)
-#define debug_msg_logger(x, fmt, args...) msg_logger(x, fmt, ## args)
#else
-#define debug_msg_logger(x, fmt, args...)
-#endif
-#else
-#define debug_msg_logger(x, fmt, args...)
#define msg_logger(p, fmt, args...)
#define msg_logger_and_die(p, fmt, args...) exit(1)
#define devfsd_perror_msg_and_die(fmt, args...) exit(1)
@@ -448,8 +442,7 @@ int devfsd_main(int argc, char **argv)
mount_point = argv[1];
- if (chdir(mount_point) != 0)
- devfsd_perror_msg_and_die(mount_point);
+ xchdir(mount_point);
fd = xopen(".devfsd", O_RDONLY);
@@ -509,7 +502,7 @@ int devfsd_main(int argc, char **argv)
free_config();
read_config_file((char*)CONFIG_FILE, FALSE, &event_mask);
if (do_scan)
- dir_operation(SERVICE,mount_point,0,NULL);
+ dir_operation(SERVICE, mount_point, 0, NULL);
}
} /* End Function main */
@@ -530,8 +523,6 @@ static void read_config_file(char *path, int optional, unsigned long *event_mask
char buf[STRING_LENGTH];
char *line = NULL;
- debug_msg_logger(LOG_INFO, "%s: %s", __FUNCTION__, path);
-
if (stat(path, &statbuf) == 0) {
/* Don't read 0 length files: ignored */
/*if (statbuf.st_size == 0)
@@ -588,9 +579,8 @@ static void process_config_line(const char *line, unsigned long *event_mask)
"RMOLDCOMPAT", "RMNEWCOMPAT", 0
};
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
- for (count = 0; count < MAX_ARGS; ++count) p[count][0] = '\0';
+ for (count = 0; count < MAX_ARGS; ++count)
+ p[count][0] = '\0';
num_args = sscanf(line, "%s %s %s %s %s %s %s %s %s %s",
when, name, what,
p[0], p[1], p[2], p[3], p[4], p[5], p[6]);
@@ -616,14 +606,13 @@ static void process_config_line(const char *line, unsigned long *event_mask)
}
/* "RESTORE" */
if (i == 3) {
- dir_operation(RESTORE,name, strlen(name),NULL);
+ dir_operation(RESTORE, name, strlen(name),NULL);
return;
}
if (num_args < 3)
goto process_config_line_err;
- new = xmalloc(sizeof *new);
- memset(new, 0, sizeof *new);
+ new = xzalloc(sizeof *new);
for (count = 0; event_types[count].config_name != NULL; ++count) {
if (strcasecmp(when, event_types[count].config_name) != 0)
@@ -632,7 +621,7 @@ static void process_config_line(const char *line, unsigned long *event_mask)
break;
}
if (event_types[count].config_name == NULL) {
- msg="WHEN in";
+ msg = "WHEN in";
goto process_config_line_err;
}
@@ -643,7 +632,7 @@ static void process_config_line(const char *line, unsigned long *event_mask)
new->action.what = AC_PERMISSIONS;
/* Get user and group */
if ((ptr = strchr(p[0], '.')) == NULL) {
- msg="UID.GID";
+ msg = "UID.GID";
goto process_config_line_err; /*"missing '.' in UID.GID"*/
}
@@ -695,7 +684,7 @@ static void process_config_line(const char *line, unsigned long *event_mask)
new->action.what = i - 2;
break;
default:
- msg ="WHAT in";
+ msg = "WHAT in";
goto process_config_line_err;
/*esac*/
} /* switch (i) */
@@ -725,8 +714,6 @@ static int do_servicing(int fd, unsigned long event_mask)
struct devfsd_notify_struct info;
unsigned long tmp_event_mask;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
/* Tell devfs what events we care about */
tmp_event_mask = event_mask;
do_ioctl_and_die(fd, DEVFSDIOC_SET_EVENT_MASK, tmp_event_mask);
@@ -761,9 +748,8 @@ static void service_name(const struct devfsd_notify_struct *info)
regmatch_t mbuf[MAX_SUBEXPR];
struct config_entry_struct *entry;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
if (ENABLE_DEBUG && info->overrun_count > 0)
- debug_msg_logger(LOG_ERR, "lost %u events", info->overrun_count);
+ msg_logger(LOG_ERR, "lost %u events", info->overrun_count);
/* Discard lookups on "/dev/log" and "/dev/initctl" */
if (info->type == DEVFSD_NOTIFY_LOOKUP
@@ -784,8 +770,6 @@ static void service_name(const struct devfsd_notify_struct *info)
for (n = 0;(n < MAX_SUBEXPR) && (mbuf[n].rm_so != -1); ++n)
/* VOID */;
- debug_msg_logger(LOG_INFO, "%s: action.what %d", __FUNCTION__, entry->action.what);
-
switch (entry->action.what) {
case AC_PERMISSIONS:
action_permissions(info, entry);
@@ -825,13 +809,11 @@ static void action_permissions(const struct devfsd_notify_struct *info,
{
struct stat statbuf;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
if (stat(info->devname, &statbuf) != 0 ||
chmod(info->devname,(statbuf.st_mode & S_IFMT) |(entry->u.permissions.mode & ~S_IFMT)) != 0 ||
- chown(info->devname, entry->u.permissions.uid, entry->u.permissions.gid) != 0) {
- msg_logger(LOG_ERR, "Can't chmod or chown: %s: %m",info->devname);
- }
+ chown(info->devname, entry->u.permissions.uid, entry->u.permissions.gid) != 0
+ )
+ msg_logger(LOG_ERR, "Can't chmod or chown: %s: %m", info->devname);
} /* End Function action_permissions */
static void action_modload(const struct devfsd_notify_struct *info,
@@ -843,18 +825,16 @@ static void action_modload(const struct devfsd_notify_struct *info,
*/
{
char *argv[6];
- char device[STRING_LENGTH];
argv[0] =(char*)MODPROBE;
argv[1] =(char*)MODPROBE_SWITCH_1; /* "-k" */
argv[2] =(char*)MODPROBE_SWITCH_2; /* "-C" */
argv[3] =(char*)CONFIG_MODULES_DEVFS;
- argv[4] = device;
+ argv[4] = concat_path_file("/dev", info->devname); /* device */
argv[5] = NULL;
- snprintf(device, sizeof(device), "/dev/%s", info->devname);
- debug_msg_logger(LOG_INFO, "%s: %s %s %s %s %s",__FUNCTION__, argv[0],argv[1],argv[2],argv[3],argv[4]);
fork_and_execute(DIE, argv[0], argv);
+ free(argv[4]);
} /* End Function action_modload */
static void action_execute(const struct devfsd_notify_struct *info,
@@ -874,7 +854,6 @@ static void action_execute(const struct devfsd_notify_struct *info,
char *argv[MAX_ARGS + 1];
char largv[MAX_ARGS + 1][STRING_LENGTH];
- debug_msg_logger(LOG_INFO ,__FUNCTION__);
gv_info.info = info;
gv_info.devname = info->devname;
snprintf(gv_info.devpath, sizeof(gv_info.devpath), "%s/%s", mount_point, info->devname);
@@ -908,8 +887,6 @@ static void action_copy(const struct devfsd_notify_struct *info,
char source[STRING_LENGTH], destination[STRING_LENGTH];
int ret = 0;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
dest_stat.st_mode = 0;
if ((info->type == DEVFSD_NOTIFY_CHANGE) && S_ISLNK(info->mode))
@@ -935,8 +912,8 @@ static void action_copy(const struct devfsd_notify_struct *info,
else if ((info->type == DEVFSD_NOTIFY_CHANGE) &&(dest_stat.st_mode & S_ISVTX))
new_mode |= S_ISVTX;
ret = copy_inode(destination, &dest_stat, new_mode, source, &source_stat);
- if (ENABLE_DEBUG && ret &&(errno != EEXIST))
- debug_msg_logger(LOG_ERR, "copy_inode: %s to %s: %m", source, destination);
+ if (ENABLE_DEBUG && ret && (errno != EEXIST))
+ msg_logger(LOG_ERR, "copy_inode: %s to %s: %m", source, destination);
} /* End Function action_copy */
static void action_compat(const struct devfsd_notify_struct *info, unsigned int action)
@@ -978,16 +955,14 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int
case AC_MKNEWCOMPAT:
case AC_RMNEWCOMPAT:
ptr = strrchr(info->devname, '/') + 1;
- i=scan_dev_name(info->devname, info->namelen, ptr);
-
- debug_msg_logger(LOG_INFO, "%s: scan_dev_name = %d", __FUNCTION__, i);
+ i = scan_dev_name(info->devname, info->namelen, ptr);
/* nothing found */
- if (i==0 || i > 9)
+ if (i == 0 || i > 9)
return;
- sscanf(info->devname +((i<6)?5:4), "host%d/bus%d/target%d/lun%d/", &host, &bus, &target, &lun);
- snprintf(dest_buf, sizeof(dest_buf), "../%s", info->devname +((i>5)?4:0));
+ sscanf(info->devname + ((i < 6) ? 5 : 4), "host%d/bus%d/target%d/lun%d/", &host, &bus, &target, &lun);
+ snprintf(dest_buf, sizeof(dest_buf), "../%s", info->devname + (( i > 5) ? 4 : 0));
dest_name = dest_buf;
compat_name = compat_buf;
@@ -1010,7 +985,7 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int
mode = ptr[2] - 107; /* 1 or 2 */
if (ptr[2] == 'a')
mode = 3;
- sprintf(compat_buf, fmt [i], host, bus, target, lun, mode, rewind_);
+ sprintf(compat_buf, fmt[i], host, bus, target, lun, mode, rewind_);
}
/* 9 == ide/host/mt */
@@ -1022,8 +997,6 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int
if (compat_name == NULL)
return;
- debug_msg_logger(LOG_INFO, "%s: %s", __FUNCTION__, compat_name);
-
/* Now decide what to do with it */
switch (action) {
case AC_MKOLDCOMPAT:
@@ -1034,7 +1007,7 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int
case AC_RMNEWCOMPAT:
ret = unlink(compat_name);
if (ENABLE_DEBUG && ret)
- debug_msg_logger(LOG_ERR, "unlink: %s: %m", compat_name);
+ msg_logger(LOG_ERR, "unlink: %s: %m", compat_name);
break;
/*esac*/
} /* switch (action) */
@@ -1042,15 +1015,13 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int
static void restore(char *spath, struct stat source_stat, int rootlen)
{
- char dpath[STRING_LENGTH];
+ char *dpath;
struct stat dest_stat;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
dest_stat.st_mode = 0;
- snprintf(dpath, sizeof dpath, "%s%s", mount_point, spath + rootlen);
+ dpath = concat_path_file(mount_point, spath + rootlen);
lstat(dpath, &dest_stat);
-
+ free(dpath);
if (S_ISLNK(source_stat.st_mode) ||(source_stat.st_mode & S_ISVTX))
copy_inode(dpath, &dest_stat,(source_stat.st_mode & ~S_ISVTX) , spath, &source_stat);
@@ -1077,8 +1048,6 @@ static int copy_inode(const char *destpath, const struct stat *dest_stat,
struct sockaddr_un un_addr;
char symlink_val[STRING_LENGTH];
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
if ((source_stat->st_mode & S_IFMT) ==(dest_stat->st_mode & S_IFMT)) {
/* Same type */
if (S_ISLNK(source_stat->st_mode)) {
@@ -1150,8 +1119,6 @@ static void free_config(void)
struct config_entry_struct *c_entry;
void *next;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
for (c_entry = first_config; c_entry != NULL; c_entry = next) {
unsigned int count;
@@ -1184,11 +1151,6 @@ static int get_uid_gid(int flag, const char *string)
if (ENABLE_DEVFSD_VERBOSE)
msg = "user";
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
- if (ENABLE_DEBUG && flag != UID && flag != GID)
- msg_logger_and_die(LOG_ERR,"%s: flag != UID && flag != GID", __FUNCTION__);
-
if (isdigit(string[0]) ||((string[0] == '-') && isdigit(string[1])))
return atoi(string);
@@ -1214,8 +1176,6 @@ static mode_t get_mode(const char *string)
mode_t mode;
int i;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
if (isdigit(string[0]))
return strtoul(string, NULL, 8);
if (strlen(string) != 9)
@@ -1226,7 +1186,7 @@ static mode_t get_mode(const char *string)
while (i > 0) {
if (string[0] == 'r' || string[0] == 'w' || string[0] == 'x')
mode += i;
- i = i/2;
+ i = i / 2;
string++;
}
return mode;
@@ -1234,8 +1194,6 @@ static mode_t get_mode(const char *string)
static void signal_handler(int sig)
{
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
caught_signal = TRUE;
if (sig == SIGHUP)
caught_sighup = TRUE;
@@ -1252,8 +1210,6 @@ static const char *get_variable(const char *variable, void *info)
gv_info->devpath, gv_info->devname, 0 };
int i;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
if (gethostname(hostname, STRING_LENGTH - 1) != 0)
msg_logger_and_die(LOG_ERR, "gethostname: %m");
@@ -1266,7 +1222,6 @@ static const char *get_variable(const char *variable, void *info)
if (i > 6 || i < 0 || (i > 1 && gv_info == NULL))
return NULL;
if (i >= 0 && i <= 3) {
- debug_msg_logger(LOG_INFO, "%s: i=%d %s", __FUNCTION__, i, field_names[i + 7]);
return field_names[i + 7];
}
@@ -1276,9 +1231,6 @@ static const char *get_variable(const char *variable, void *info)
sprintf(sbuf, "%u", gv_info->info->gid);
else if (i == 6)
sprintf(sbuf, "%o", gv_info->info->mode);
-
- debug_msg_logger(LOG_INFO, "%s: %s", __FUNCTION__, sbuf);
-
return sbuf;
} /* End Function get_variable */
@@ -1286,8 +1238,6 @@ static void service(struct stat statbuf, char *path)
{
struct devfsd_notify_struct info;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
memset(&info, 0, sizeof info);
info.type = DEVFSD_NOTIFY_REGISTERED;
info.mode = statbuf.st_mode;
@@ -1314,37 +1264,30 @@ static void dir_operation(int type, const char * dir_name, int var, unsigned lon
struct stat statbuf;
DIR *dp;
struct dirent *de;
- char path[STRING_LENGTH];
-
- debug_msg_logger(LOG_INFO, __FUNCTION__);
+ char *path;
- if ((dp = opendir(dir_name))==NULL) {
- debug_msg_logger(LOG_ERR, "opendir: %s: %m", dir_name);
+ if ((dp = warn_opendir(dir_name)) == NULL)
return;
- }
while ((de = readdir(dp)) != NULL) {
if (de->d_name && DOT_OR_DOTDOT(de->d_name))
continue;
- snprintf(path, sizeof(path), "%s/%s", dir_name, de->d_name);
- debug_msg_logger(LOG_ERR, "%s: %s", __FUNCTION__, path);
-
- if (lstat(path, &statbuf) != 0) {
- debug_msg_logger(LOG_ERR, "%s: %s: %m", __FUNCTION__, path);
- continue;
- }
- switch (type) {
- case SERVICE:
- service(statbuf, path);
- break;
- case RESTORE:
- restore(path, statbuf, var);
- break;
- case READ_CONFIG:
- read_config_file(path, var, event_mask);
- break;
+ path = concat_path_file(dir_name, de->d_name);
+ if (lstat(path, &statbuf) == 0) {
+ switch (type) {
+ case SERVICE:
+ service(statbuf, path);
+ break;
+ case RESTORE:
+ restore(path, statbuf, var);
+ break;
+ case READ_CONFIG:
+ read_config_file(path, var, event_mask);
+ break;
+ }
}
+ free(path);
}
closedir(dp);
} /* End Function do_scan_and_service */
@@ -1356,16 +1299,12 @@ static int mksymlink(const char *oldpath, const char *newpath)
[RETURNS] 0 on success, else -1.
*/
{
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
if (!make_dir_tree(newpath))
return -1;
if (symlink(oldpath, newpath) != 0) {
- if (errno != EEXIST) {
- debug_msg_logger(LOG_ERR, "%s: %s to %s: %m", __FUNCTION__, oldpath, newpath);
+ if (errno != EEXIST)
return -1;
- }
}
return 0;
} /* End Function mksymlink */
@@ -1377,12 +1316,8 @@ static int make_dir_tree(const char *path)
[RETURNS] TRUE on success, else FALSE.
*/
{
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
- if (bb_make_directory(dirname((char *)path), -1, FILEUTILS_RECUR) == -1) {
- debug_msg_logger(LOG_ERR, "%s: %s: %m",__FUNCTION__, path);
+ if (bb_make_directory(dirname((char *)path), -1, FILEUTILS_RECUR) == -1)
return FALSE;
- }
return TRUE;
} /* End Function make_dir_tree */
@@ -1409,8 +1344,6 @@ static int expand_expression(char *output, unsigned int outsize,
{
char temp[STRING_LENGTH];
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
if (!st_expr_expand(temp, STRING_LENGTH, input, get_variable_func, info))
return FALSE;
expand_regexp(output, outsize, temp, devname, ex, numexp);
@@ -1438,8 +1371,6 @@ static void expand_regexp(char *output, size_t outsize, const char *input,
const char last_exp = '0' - 1 + numex;
int c = -1;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
/* Guarantee NULL termination by writing an explicit '\0' character into
the very last byte */
if (outsize)
@@ -1555,8 +1486,6 @@ const char *get_old_name(const char *devname, unsigned int namelen,
NULL
};
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
for (trans = translate_table; trans->match != NULL; ++trans) {
len = strlen(trans->match);
@@ -1576,15 +1505,13 @@ const char *get_old_name(const char *devname, unsigned int namelen,
else
return NULL;
- debug_msg_logger(LOG_INFO, "%s: scan_dev_name = %d", __FUNCTION__, i);
-
/* 1 == scsi/generic, 3 == scsi/cd, 10 == sbp/ */
if (i == 1 || i == 3 || i == 10)
sprintf(buffer, fmt[i], minor);
/* 2 ==scsi/disc, 4 == scsi/part */
if (i == 2 || i == 4)
- compat_name = write_old_sd_name(buffer, major, minor,((i == 2)?"":(ptr + 4)));
+ compat_name = write_old_sd_name(buffer, major, minor,((i == 2) ? "" : (ptr + 4)));
/* 5 == scsi/mt */
if (i == 5) {
@@ -1617,10 +1544,6 @@ const char *get_old_name(const char *devname, unsigned int namelen,
indexx = atoi(devname + 5);
sprintf(buffer, fmt[i], (devname[4] == 'm') ? 'p' : 't', pty1[indexx >> 4], pty2[indexx & 0x0f]);
}
-
- if (ENABLE_DEBUG && compat_name != NULL)
- msg_logger(LOG_INFO, "%s: compat_name %s", __FUNCTION__, compat_name);
-
return compat_name;
} /* End Function get_old_name */
@@ -1635,8 +1558,6 @@ static char get_old_ide_name(unsigned int major, unsigned int minor)
char c = 'a'; /* 97 */
int i = IDE0_MAJOR;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
/* I hope it works like the previous code as it saves a few bytes. Tito ;P */
do {
if (i == IDE0_MAJOR || i == IDE1_MAJOR || i == IDE2_MAJOR
@@ -1671,8 +1592,6 @@ static char *write_old_sd_name(char *buffer,
{
unsigned int disc_index;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
if (major == 8) {
sprintf(buffer, "sd%c%s", 'a' + (minor >> 4), part);
return buffer;
@@ -1716,8 +1635,6 @@ int st_expr_expand(char *output, unsigned int length, const char *input,
struct passwd *pwent;
char buffer[BUFFER_SIZE], tmp[STRING_LENGTH];
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
if (length > BUFFER_SIZE)
length = BUFFER_SIZE;
for (; TRUE; ++input) {
@@ -1809,8 +1726,6 @@ static const char *expand_variable(char *buffer, unsigned int length,
const char *env, *ptr;
char tmp[STRING_LENGTH];
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
ch = input[0];
if (ch == '$') {
/* Special case for "$$": PID */
@@ -1943,8 +1858,6 @@ static const char *get_variable_v2(const char *variable,
{
const char *value;
- debug_msg_logger(LOG_INFO, __FUNCTION__);
-
if (func != NULL) {
value = (*func)(variable, info);
if (value != NULL)
generated by cgit v1.1 at 2024-12-27 08:45:00 +0000