+/* vi: set sw=4 ts=4: */
+/*
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
/*
devfsd implementation for busybox
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
-#include <sys/time.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#define BUFFER_SIZE 16384
#define DEVFSD_VERSION "1.3.25"
#define CONFIG_FILE "/etc/devfsd.conf"
-#define MODPROBE "/sbin/modprobe"
+#define MODPROBE "/sbin/modprobe"
#define MODPROBE_SWITCH_1 "-k"
#define MODPROBE_SWITCH_2 "-C"
#define CONFIG_MODULES_DEVFS "/etc/modules.devfs"
/* Busybox messages */
static const char * const bb_msg_proto_rev = "protocol revision";
-static const char * const bb_msg_bad_config = "bad %s config file: %s";
+static const char * const bb_msg_bad_config = "bad %s config file: %s";
static const char * const bb_msg_small_buffer = "buffer too small";
static const char * const bb_msg_variable_not_found = "variable: %s not found";
static void msg_logger(int pri, const char * fmt, ... )
{
va_list ap;
- int ret;
-
+ int ret;
+
va_start(ap, fmt);
- ret = access ("/dev/log", F_OK);
+ ret = access ("/dev/log", F_OK);
if (ret == 0) {
- openlog(bb_applet_name, 0, LOG_DAEMON);
+ openlog(applet_name, 0, LOG_DAEMON);
vsyslog( pri , fmt, ap);
/* Man: A trailing newline is added when needed. */
closelog();
- }
+ }
/* ENABLE_DEVFSD_VERBOSE is always enabled if msg_logger is used */
if ((ENABLE_DEVFSD_VERBOSE && ret) || ENABLE_DEBUG) {
bb_error_msg(fmt, ap);
va_list ap;
va_start(ap, fmt);
- msg_logger(pri, fmt, ap);
+ msg_logger(pri, fmt, ap);
va_end(ap);
exit(EXIT_FAILURE);
}
/* Busybox stuff */
#if defined(CONFIG_DEVFSD_VERBOSE) || defined(CONFIG_DEBUG)
-#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)
+#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...)
+#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(p, fmt, args...)
#define msg_logger_and_die(p, fmt, args...) exit(1)
#define devfsd_perror_msg_and_die(fmt, args...) exit(1)
#define devfsd_error_msg_and_die(fmt, args...) exit(1)
-#define devfsd_error_msg(fmt, args...)
+#define devfsd_error_msg(fmt, args...)
#endif
static void do_ioctl_and_die(int fd, int request, unsigned long event_mask_flag)
{
if(argv[count][1]=='v' && !argv[count][2]) /* -v */
print_version = TRUE;
- else if(ENABLE_DEVFSD_FG_NP && argv[count][1]=='f'
+ else if(ENABLE_DEVFSD_FG_NP && argv[count][1]=='f'
&& argv[count][2]=='g' && !argv[count][3]) /* -fg */
do_daemon = FALSE;
- else if(ENABLE_DEVFSD_FG_NP && argv[count][1]=='n'
+ else if(ENABLE_DEVFSD_FG_NP && argv[count][1]=='n'
&& argv[count][2]=='p' && !argv[count][3]) /* -np */
no_polling = TRUE;
else
if (chdir (mount_point) != 0)
devfsd_perror_msg_and_die(mount_point);
-
- fd = bb_xopen (".devfsd", O_RDONLY);
+
+ fd = xopen (".devfsd", O_RDONLY);
if (fcntl (fd, F_SETFD, FD_CLOEXEC) != 0)
devfsd_perror_msg_and_die("FD_CLOEXEC");
- do_ioctl_and_die(fd, DEVFSDIOC_GET_PROTO_REV,(int )&proto_rev);
+ if (ioctl (fd, DEVFSDIOC_GET_PROTO_REV, &proto_rev) == -1)
+ msg_logger_and_die(LOG_ERR, "ioctl");
/*setup initial entries */
for (curr = initial_symlinks; curr->dest != NULL; ++curr)
if ( print_version || (DEVFSD_PROTOCOL_REVISION_DAEMON != proto_rev) )
{
- bb_printf( "%s v%s\nDaemon %s:\t%d\nKernel-side %s:\t%d\n",
- bb_applet_name,DEVFSD_VERSION,bb_msg_proto_rev,
- DEVFSD_PROTOCOL_REVISION_DAEMON,bb_msg_proto_rev, proto_rev);
+ printf( "%s v%s\nDaemon %s:\t%d\nKernel-side %s:\t%d\n",
+ applet_name,DEVFSD_VERSION,bb_msg_proto_rev,
+ DEVFSD_PROTOCOL_REVISION_DAEMON,bb_msg_proto_rev, proto_rev);
if (DEVFSD_PROTOCOL_REVISION_DAEMON != proto_rev)
bb_error_msg_and_die( "%s mismatch!",bb_msg_proto_rev);
exit(EXIT_SUCCESS); /* -v */
new_action.sa_handler = signal_handler;
if (sigaction (SIGHUP, &new_action, NULL) != 0 || sigaction (SIGUSR1, &new_action, NULL) != 0 )
devfsd_error_msg_and_die( "sigaction");
-
- bb_printf("%s v%s started for %s\n",bb_applet_name, DEVFSD_VERSION, mount_point);
- /* Set umask so that mknod(2), open(2) and mkdir(2) have complete control over permissions */
+ printf("%s v%s started for %s\n",applet_name, DEVFSD_VERSION, mount_point);
+
+ /* Set umask so that mknod(2), open(2) and mkdir(2) have complete control over permissions */
umask (0);
read_config_file (CONFIG_FILE, FALSE, &event_mask);
/* Do the scan before forking, so that boot scripts see the finished product */
dir_operation(SERVICE,mount_point,0,NULL);
-
+
if (ENABLE_DEVFSD_FG_NP && no_polling)
exit (0);
if (do_daemon)
char *line=NULL;
debug_msg_logger(LOG_INFO, "%s: %s", __FUNCTION__, path);
-
+
if (stat (path, &statbuf) == 0 )
{
/* Don't read 0 length files: ignored */
/* strip last / from dirname so we don't need to check for it later */
while( path && path[1]!='\0' && path[strlen(path)-1] == '/')
path[strlen(path) -1] = '\0';
-
+
dir_operation(READ_CONFIG, path, 0, event_mask);
return;
}
} else {
read_config_file_err:
if(optional == 0 && errno == ENOENT)
- msg_logger_and_die(LOG_ERR, "read config file: %s: %m", path);
+ msg_logger_and_die(LOG_ERR, "read config file: %s: %m", path);
}
return;
} /* End Function read_config_file */
char name[STRING_LENGTH];
char * msg="";
char *ptr;
+ int i;
/* !!!! Only Uppercase Keywords in devsfd.conf */
- const char *options[] = { "CLEAR_CONFIG", "INCLUDE", "OPTIONAL_INCLUDE", "RESTORE",
- "PERMISSIONS", "MODLOAD", "EXECUTE", "COPY", "IGNORE",
- "MKOLDCOMPAT", "MKNEWCOMPAT","RMOLDCOMPAT", "RMNEWCOMPAT", 0 };
-
- int i;
+ static const char *const options[] = {
+ "CLEAR_CONFIG", "INCLUDE", "OPTIONAL_INCLUDE",
+ "RESTORE", "PERMISSIONS", "MODLOAD", "EXECUTE",
+ "COPY", "IGNORE", "MKOLDCOMPAT", "MKNEWCOMPAT",
+ "RMOLDCOMPAT", "RMNEWCOMPAT", 0
+ };
debug_msg_logger(LOG_INFO, __FUNCTION__);
-
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]);
- i = compare_string_array(options, when );
+ i = index_in_str_array(options, when );
/*"CLEAR_CONFIG"*/
if( i == 0)
goto process_config_line_err;
}
- i = compare_string_array(options, what );
+ i = index_in_str_array(options, what );
switch(i)
{
if ( ( ptr = strchr (p[0], '.') ) == NULL )
{
msg="UID.GID";
- goto process_config_line_err; /*"missing '.' in UID.GID */
+ goto process_config_line_err; /*"missing '.' in UID.GID"*/
}
*ptr++ = '\0';
the device name) to the module loading facility. In addition,
the /etc/modules.devfs configuration file is used.*/
if (ENABLE_DEVFSD_MODLOAD)
- new->action.what = AC_MODLOAD;
+ new->action.what = AC_MODLOAD;
break;
case 6: /* EXECUTE */
new->action.what = AC_EXECUTE;
num_args -= 3;
for (count = 0; count < num_args; ++count)
- new->u.execute.argv[count] = bb_xstrdup (p[count]);
+ new->u.execute.argv[count] = xstrdup (p[count]);
new->u.execute.argv[num_args] = NULL;
break;
if (num_args != 2)
goto process_config_line_err; /* missing path and function in line */
- new->u.copy.source = bb_xstrdup (p[0]);
- new->u.copy.destination = bb_xstrdup (p[1]);
+ new->u.copy.source = xstrdup (p[0]);
+ new->u.copy.destination = xstrdup (p[1]);
break;
case 8: /* IGNORE */
/* FALLTROUGH */
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);
continue;
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:
} /* End Function action_permissions */
static void action_modload (const struct devfsd_notify_struct *info,
- const struct config_entry_struct *entry)
+ const struct config_entry_struct *entry ATTRIBUTE_UNUSED)
/* [SUMMARY] Load a module.
<info> The devfs change.
<entry> The config file entry.
static void action_copy (const struct devfsd_notify_struct *info,
const struct config_entry_struct *entry,
- const regmatch_t *regexpr, unsigned int numexpr)
+ const regmatch_t *regexpr, unsigned int numexpr)
/* [SUMMARY] Copy permissions.
<info> The devfs change.
<entry> The config file entry.
int ret = 0;
debug_msg_logger(LOG_INFO, __FUNCTION__);
-
+
dest_stat.st_mode = 0;
-
+
if ( (info->type == DEVFSD_NOTIFY_CHANGE) && S_ISLNK (info->mode) )
return;
gv_info.info = info;
new_mode |= S_ISVTX;
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);
+ 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);
return;
unsigned int i;
char rewind_;
/* 1 to 5 "scsi/" , 6 to 9 "ide/host" */
- const char *fmt[] = { NULL ,
- "sg/c%db%dt%du%d", /* scsi/generic */
- "sd/c%db%dt%du%d", /* scsi/disc */
- "sr/c%db%dt%du%d", /* scsi/cd */
- "sd/c%db%dt%du%dp%d", /* scsi/part */
- "st/c%db%dt%du%dm%d%c", /* scsi/mt */
- "ide/hd/c%db%dt%du%d", /* ide/host/disc */
- "ide/cd/c%db%dt%du%d", /* ide/host/cd */
- "ide/hd/c%db%dt%du%dp%d", /* ide/host/part */
- "ide/mt/c%db%dt%du%d%s", /* ide/host/mt */
- NULL };
+ static const char *const fmt[] = {
+ NULL ,
+ "sg/c%db%dt%du%d", /* scsi/generic */
+ "sd/c%db%dt%du%d", /* scsi/disc */
+ "sr/c%db%dt%du%d", /* scsi/cd */
+ "sd/c%db%dt%du%dp%d", /* scsi/part */
+ "st/c%db%dt%du%dm%d%c", /* scsi/mt */
+ "ide/hd/c%db%dt%du%d", /* ide/host/disc */
+ "ide/cd/c%db%dt%du%d", /* ide/host/cd */
+ "ide/hd/c%db%dt%du%dp%d", /* ide/host/part */
+ "ide/mt/c%db%dt%du%d%s", /* ide/host/mt */
+ NULL
+ };
/* First construct compatibility name */
switch (action)
( dest_len = readlink (destpath , dest_link , STRING_LENGTH - 1) ) < 0 )
return (FALSE);
source_link[source_len] = '\0';
- dest_link[dest_len] = '\0';
+ dest_link[dest_len] = '\0';
if ( (source_len != dest_len) || (strcmp (source_link, dest_link) != 0) )
{
unlink (destpath);
return (FALSE);
} /* End Function copy_inode */
-static void free_config ()
+static void free_config (void)
/* [SUMMARY] Free the configuration information.
[RETURNS] Nothing.
*/
struct passwd *pw_ent;
struct group *grp_ent;
static char *msg;
-
+
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 ( flag == GID && ( grp_ent = getgrnam (string) ) != NULL )
return (grp_ent->gr_gid);
- else if(ENABLE_DEVFSD_VERBOSE)
+ else if(ENABLE_DEVFSD_VERBOSE)
msg="group";
if(ENABLE_DEVFSD_VERBOSE)
return strtoul (string, NULL, 8);
if (strlen (string) != 9)
msg_logger_and_die(LOG_ERR, "bad mode: %s", string);
-
+
mode = 0;
i= S_IRUSR;
while(i>0)
static void signal_handler (int sig)
{
debug_msg_logger(LOG_INFO, __FUNCTION__);
-
+
caught_signal = TRUE;
if (sig == SIGHUP)
caught_sighup = TRUE;
if (gethostname (hostname, STRING_LENGTH - 1) != 0)
msg_logger_and_die(LOG_ERR, "gethostname: %m");
-
+
/* Here on error we should do exit(RV_SYS_ERROR), instead we do exit(EXIT_FAILURE) */
hostname[STRING_LENGTH - 1] = '\0';
- /* compare_string_array returns i>=0 */
- i=compare_string_array(field_names, variable);
+ /* index_in_str_array returns i>=0 */
+ i=index_in_str_array(field_names, variable);
- if ( i > 6 && (i > 1 && gv_info == NULL))
+ if ( i > 6 || i < 0 || (i > 1 && gv_info == NULL))
return (NULL);
- if( i >= 0 || i <= 3)
+ 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]);
static int expand_expression(char *output, unsigned int outsize,
const char *input,
const char *(*get_variable_func)(const char *variable, void *info),
- void *info,
- const char *devname,
- const regmatch_t *ex, unsigned int numexp)
+ void *info,
+ const char *devname,
+ const regmatch_t *ex, unsigned int numexp)
/* [SUMMARY] Expand environment variables and regular subexpressions in string.
<output> The output expanded expression is written here.
<length> The size of the output buffer.
const char *pty2;
size_t len;
/* 1 to 5 "scsi/" , 6 to 9 "ide/host", 10 sbp/, 11 vcc/, 12 pty/ */
- const char *fmt[] = { NULL ,
- "sg%u", /* scsi/generic */
- NULL, /* scsi/disc */
- "sr%u", /* scsi/cd */
- NULL, /* scsi/part */
- "nst%u%c", /* scsi/mt */
- "hd%c" , /* ide/host/disc */
- "hd%c" , /* ide/host/cd */
- "hd%c%s", /* ide/host/part */
- "%sht%d", /* ide/host/mt */
- "sbpcd%u", /* sbp/ */
- "vcs%s", /* vcc/ */
- "%cty%c%c", /* pty/ */
- NULL };
+ static const char *const fmt[] = {
+ NULL ,
+ "sg%u", /* scsi/generic */
+ NULL, /* scsi/disc */
+ "sr%u", /* scsi/cd */
+ NULL, /* scsi/part */
+ "nst%u%c", /* scsi/mt */
+ "hd%c" , /* ide/host/disc */
+ "hd%c" , /* ide/host/cd */
+ "hd%c%s", /* ide/host/part */
+ "%sht%d", /* ide/host/mt */
+ "sbpcd%u", /* sbp/ */
+ "vcs%s", /* vcc/ */
+ "%cty%c%c", /* pty/ */
+ NULL
+ };
debug_msg_logger(LOG_INFO, __FUNCTION__);
compat_name = buffer;
else
return NULL;
-
+
debug_msg_logger(LOG_INFO, "%s: scan_dev_name = %d", __FUNCTION__, i);
/* 1 == scsi/generic, 3 == scsi/cd, 10 == sbp/ */
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 */
*/
{
char letter='y'; /* 121 */
- char c='a'; /* 97 */
+ char c='a'; /* 97 */
int i=IDE0_MAJOR;
debug_msg_logger(LOG_INFO, __FUNCTION__);
i==IDE6_MAJOR || i==IDE7_MAJOR || i==IDE8_MAJOR ||
i==IDE9_MAJOR )
{
- if(i==major)
+ if((unsigned int)i==major)
{
letter=c;
break;
for (ptr = input; isalnum (ch) || (ch == '_') || (ch == ':');ch = *++ptr)
/* VOID */ ;
len = ptr - input;
- if (len >= sizeof tmp)
+ if ((size_t)len >= sizeof tmp)
goto expand_variable_out;
safe_memcpy (tmp, input, len);
{
/* Must be simple variable expansion with "${var}" */
len = ptr - input;
- if (len >= sizeof tmp)
+ if ((size_t)len >= sizeof tmp)
goto expand_variable_out;
safe_memcpy (tmp, input, len);
}
/* It's that handy "${var:-word}" expression. Check if var is defined */
len = ptr - input;
- if (len >= sizeof tmp)
+ if ((size_t)len >= sizeof tmp)
goto expand_variable_out;
safe_memcpy (tmp, input, len);
pointer to start of word in "${var:-word}" */
input += 2;
len = ptr - input;
- if (len >= sizeof tmp)
+ if ((size_t)len >= sizeof tmp)
goto expand_variable_out;
safe_memcpy (tmp, input, len);
projects / oweals / busybox.git / blobdiff