* setgid(specified group)
* setuid()
*/
+//config:config INETD
+//config: bool "inetd (18 kb)"
+//config: default y
+//config: select FEATURE_SYSLOG
+//config: help
+//config: Internet superserver daemon
+//config:
+//config:config FEATURE_INETD_SUPPORT_BUILTIN_ECHO
+//config: bool "Support echo service on port 7"
+//config: default y
+//config: depends on INETD
+//config: help
+//config: Internal service which echoes data back.
+//config: Activated by configuration lines like these:
+//config: echo stream tcp nowait root internal
+//config: echo dgram udp wait root internal
+//config:
+//config:config FEATURE_INETD_SUPPORT_BUILTIN_DISCARD
+//config: bool "Support discard service on port 8"
+//config: default y
+//config: depends on INETD
+//config: help
+//config: Internal service which discards all input.
+//config: Activated by configuration lines like these:
+//config: discard stream tcp nowait root internal
+//config: discard dgram udp wait root internal
+//config:
+//config:config FEATURE_INETD_SUPPORT_BUILTIN_TIME
+//config: bool "Support time service on port 37"
+//config: default y
+//config: depends on INETD
+//config: help
+//config: Internal service which returns big-endian 32-bit number
+//config: of seconds passed since 1900-01-01. The number wraps around
+//config: on overflow.
+//config: Activated by configuration lines like these:
+//config: time stream tcp nowait root internal
+//config: time dgram udp wait root internal
+//config:
+//config:config FEATURE_INETD_SUPPORT_BUILTIN_DAYTIME
+//config: bool "Support daytime service on port 13"
+//config: default y
+//config: depends on INETD
+//config: help
+//config: Internal service which returns human-readable time.
+//config: Activated by configuration lines like these:
+//config: daytime stream tcp nowait root internal
+//config: daytime dgram udp wait root internal
+//config:
+//config:config FEATURE_INETD_SUPPORT_BUILTIN_CHARGEN
+//config: bool "Support chargen service on port 19"
+//config: default y
+//config: depends on INETD
+//config: help
+//config: Internal service which generates endless stream
+//config: of all ASCII chars beetween space and char 126.
+//config: Activated by configuration lines like these:
+//config: chargen stream tcp nowait root internal
+//config: chargen dgram udp wait root internal
+//config:
+//config:config FEATURE_INETD_RPC
+//config: bool "Support RPC services"
+//config: default n # very rarely used, and needs Sun RPC support in libc
+//config: depends on INETD
+//config: help
+//config: Support Sun-RPC based services
+
+//applet:IF_INETD(APPLET(inetd, BB_DIR_USR_SBIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_INETD) += inetd.o
//usage:#define inetd_trivial_usage
//usage: "[-fe] [-q N] [-R N] [CONFFILE]"
//usage: "Listen for network connections and launch programs\n"
//usage: "\n -f Run in foreground"
//usage: "\n -e Log to stderr"
-//usage: "\n -q N Socket listen queue (default: 128)"
+//usage: "\n -q N Socket listen queue (default 128)"
//usage: "\n -R N Pause services after N connects/min"
-//usage: "\n (default: 0 - disabled)"
+//usage: "\n (default 0 - disabled)"
+//usage: "\n Default CONFFILE is /etc/inetd.conf"
#include <syslog.h>
#include <sys/resource.h> /* setrlimit */
#include <sys/un.h>
#include "libbb.h"
+#include "common_bufsiz.h"
#if ENABLE_FEATURE_INETD_RPC
# if defined(__UCLIBC__) && ! defined(__UCLIBC_HAS_RPC__)
-# error "You need to build uClibc with UCLIBC_HAS_RPC for NFS support"
+# warning "You probably need to build uClibc with UCLIBC_HAS_RPC for NFS support"
+ /* not #error, since user may be using e.g. libtirpc instead */
# endif
# include <rpc/rpc.h>
# include <rpc/pmap_clnt.h>
/* Used in next_line(), and as scratch read buffer */
char line[256]; /* _at least_ 256, see LINE_SIZE */
} FIX_ALIASING;
-#define G (*(struct globals*)&bb_common_bufsiz1)
+#define G (*(struct globals*)bb_common_bufsiz1)
enum { LINE_SIZE = COMMON_BUFSIZE - offsetof(struct globals, line) };
-struct BUG_G_too_big {
- char BUG_G_too_big[sizeof(G) <= COMMON_BUFSIZE ? 1 : -1];
-};
#define rlim_ofile_cur (G.rlim_ofile_cur )
#define rlim_ofile (G.rlim_ofile )
#define serv_list (G.serv_list )
#define allsock (G.allsock )
#define line (G.line )
#define INIT_G() do { \
+ setup_common_bufsiz(); \
+ BUILD_BUG_ON(sizeof(G) > COMMON_BUFSIZE); \
rlim_ofile_cur = OPEN_MAX; \
global_queuelen = 128; \
config_filename = "/etc/inetd.conf"; \
}
/* gcc generates much more code if this is inlined */
-static servtab_t *parse_one_line(void)
+static NOINLINE servtab_t *parse_one_line(void)
{
int argc;
char *token[6+MAXARGV];
* default host for the following lines. */
free(default_local_hostname);
default_local_hostname = sep->se_local_hostname;
+ /*sep->se_local_hostname = NULL; - redundant */
+ /* (we'll overwrite this field anyway) */
goto more;
}
} else
parse_err:
bb_error_msg("parse error on line %u, line is ignored",
parser->lineno);
- free_servtab_strings(sep);
/* Just "goto more" can make sep to carry over e.g.
* "rpc"-ness (by having se_rpcver_lo != 0).
* We will be more paranoid: */
+ free_servtab_strings(sep);
free(sep);
goto new;
}
goto parse_err;
#endif
}
- if (strncmp(arg, "rpc/", 4) == 0) {
+ if (is_prefixed_with(arg, "rpc/")) {
#if ENABLE_FEATURE_INETD_RPC
unsigned n;
arg += 4;
}
#endif
argc = 0;
- while ((arg = token[6+argc]) != NULL && argc < MAXARGV)
+ while (argc < MAXARGV && (arg = token[6+argc]) != NULL)
sep->se_argv[argc++] = xstrdup(arg);
/* Some inetd.conf files have no argv's, not even argv[0].
* Fix them up.
goto parse_err;
}
-// bb_info_msg(
-// "ENTRY[%s][%s][%s][%d][%d][%d][%d][%d][%s][%s][%s]",
-// sep->se_local_hostname, sep->se_service, sep->se_proto, sep->se_wait, sep->se_proto_no,
-// sep->se_max, sep->se_count, sep->se_time, sep->se_user, sep->se_group, sep->se_program);
+ //bb_error_msg(
+ // "ENTRY[%s][%s][%s][%d][%d][%d][%d][%d][%s][%s][%s]",
+ // sep->se_local_hostname, sep->se_service, sep->se_proto, sep->se_wait, sep->se_proto_no,
+ // sep->se_max, sep->se_count, sep->se_time, sep->se_user, sep->se_group, sep->se_program);
/* check if the hostname specifier is a comma separated list
* of hostnames. we'll make new entries for each address. */
if (real_uid != 0) /* run by non-root user */
config_filename = NULL;
- opt_complementary = "R+:q+"; /* -q N, -R N */
- opt = getopt32(argv, "R:feq:", &max_concurrency, &global_queuelen);
+ /* -q N, -R N */
+ opt = getopt32(argv, "R:+feq:+", &max_concurrency, &global_queuelen);
argv += optind;
//argc -= optind;
if (argv[0])
} /* for (;;) */
}
-#if !BB_MMU
+#if ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_ECHO \
+ || ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_DISCARD
+# if !BB_MMU
static const char *const cat_args[] = { "cat", NULL };
+# endif
#endif
/*
/* ARGSUSED */
static void FAST_FUNC echo_stream(int s, servtab_t *sep UNUSED_PARAM)
{
-#if BB_MMU
+# if BB_MMU
while (1) {
ssize_t sz = safe_read(s, line, LINE_SIZE);
if (sz <= 0)
break;
xwrite(s, line, sz);
}
-#else
+# else
/* We are after vfork here! */
/* move network socket to stdin/stdout */
xmove_fd(s, STDIN_FILENO);
xopen(bb_dev_null, O_WRONLY);
BB_EXECVP("cat", (char**)cat_args);
/* on failure we return to main, which does exit(EXIT_FAILURE) */
-#endif
+# endif
}
static void FAST_FUNC echo_dg(int s, servtab_t *sep)
{
/* ARGSUSED */
static void FAST_FUNC discard_stream(int s, servtab_t *sep UNUSED_PARAM)
{
-#if BB_MMU
+# if BB_MMU
while (safe_read(s, line, LINE_SIZE) > 0)
continue;
-#else
+# else
/* We are after vfork here! */
/* move network socket to stdin */
xmove_fd(s, STDIN_FILENO);
xdup2(STDOUT_FILENO, STDERR_FILENO);
BB_EXECVP("cat", (char**)cat_args);
/* on failure we return to main, which does exit(EXIT_FAILURE) */
-#endif
+# endif
}
/* ARGSUSED */
static void FAST_FUNC discard_dg(int s, servtab_t *sep UNUSED_PARAM)
struct timeval tv;
gettimeofday(&tv, NULL);
- return htonl((uint32_t)(tv.tv_sec + 2208988800));
+ return htonl((uint32_t)(tv.tv_sec + 2208988800U));
}
/* ARGSUSED */
static void FAST_FUNC machtime_stream(int s, servtab_t *sep UNUSED_PARAM)
projects / oweals / busybox.git / blobdiff