add ENABLE_FEATURE_SYSTEMD and use it in syslogd

[oweals/busybox.git] / include / libbb.h

diff --git a/include/libbb.h b/include/libbb.h
index d14728ed09579a7245eac03dcc9e2261b7f15fab..32e25a8d454123ef7ecac5cb4823e5c87b102fbe 100644 (file)
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -68,6 +68,19 @@
 #  include <shadow.h>
 # endif
 #endif
+/* Just in case libc doesn't define some of these... */
+#ifndef _PATH_PASSWD
+#define _PATH_PASSWD  "/etc/passwd"
+#endif
+#ifndef _PATH_GROUP
+#define _PATH_GROUP   "/etc/group"
+#endif
+#ifndef _PATH_SHADOW
+#define _PATH_SHADOW  "/etc/shadow"
+#endif
+#ifndef _PATH_GSHADOW
+#define _PATH_GSHADOW "/etc/gshadow"
+#endif
 #if defined __FreeBSD__ || defined __OpenBSD__
 # include <netinet/in.h>
 # include <arpa/inet.h>
@@ -84,6 +97,15 @@
    typedef unsigned socklen_t;
 # endif
 #endif
+#ifndef HAVE_CLEARENV
+# define clearenv() do { if (environ) environ[0] = NULL; } while (0)
+#endif
+#ifndef HAVE_FDATASYNC
+# define fdatasync fsync
+#endif
+#ifndef HAVE_XTABS
+# define XTABS TAB3
+#endif
 
 
 /* Some libc's forget to declare these, do it ourself */
@@ -220,11 +242,11 @@ typedef unsigned long uoff_t;
 
 /* Macros for min/max.  */
 #ifndef MIN
-#define        MIN(a,b) (((a)<(b))?(a):(b))
+#define MIN(a,b) (((a)<(b))?(a):(b))
 #endif
 
 #ifndef MAX
-#define        MAX(a,b) (((a)>(b))?(a):(b))
+#define MAX(a,b) (((a)>(b))?(a):(b))
 #endif
 
 /* buffer allocation schemes */
@@ -335,9 +357,9 @@ extern char *bb_get_last_path_component_strip(char *path) FAST_FUNC;
 /* "abc/def/" -> "" and it never modifies 'path' */
 extern char *bb_get_last_path_component_nostrip(const char *path) FAST_FUNC;
 
-int ndelay_on(int fd) FAST_FUNC;
-int ndelay_off(int fd) FAST_FUNC;
-int close_on_exec_on(int fd) FAST_FUNC;
+void ndelay_on(int fd) FAST_FUNC;
+void ndelay_off(int fd) FAST_FUNC;
+void close_on_exec_on(int fd) FAST_FUNC;
 void xdup2(int, int) FAST_FUNC;
 void xmove_fd(int, int) FAST_FUNC;
 
@@ -661,6 +683,8 @@ extern char *xmalloc_reads(int fd, char *pfx, size_t *maxsz_p) FAST_FUNC;
 extern void *xmalloc_read(int fd, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
 /* Returns NULL if file can't be opened (default max size: INT_MAX - 4095) */
 extern void *xmalloc_open_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
+/* Never returns NULL */
+extern void *xmalloc_xopen_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
 /* Autodetects gzip/bzip2 formats. fd may be in the middle of the file! */
 #if ENABLE_FEATURE_SEAMLESS_LZMA \
  || ENABLE_FEATURE_SEAMLESS_BZ2 \
@@ -673,8 +697,6 @@ extern void setup_unzip_on_fd(int fd /*, int fail_if_not_detected*/) FAST_FUNC;
 /* Autodetects .gz etc */
 extern int open_zipped(const char *fname) FAST_FUNC;
 extern void *xmalloc_open_zipped_read_close(const char *fname, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
-/* Never returns NULL */
-extern void *xmalloc_xopen_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
 
 extern ssize_t safe_write(int fd, const void *buf, size_t count) FAST_FUNC;
 // NB: will return short write on error, not -1,
@@ -1195,6 +1217,12 @@ extern void selinux_preserve_fcontext(int fdesc) FAST_FUNC;
 #endif
 extern void selinux_or_die(void) FAST_FUNC;
 
+
+/* systemd support */
+#define SD_LISTEN_FDS_START 3
+int sd_listen_fds(void);
+
+
 /* setup_environment:
  * if chdir pw->pw_dir: ok: else if to_tmp == 1: goto /tmp else: goto / or die
  * if clear_env = 1: cd(pw->pw_dir), clear environment, then set
@@ -1275,7 +1303,7 @@ void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name) FAST
 void reset_ino_dev_hashtable(void) FAST_FUNC;
 #ifdef __GLIBC__
 /* At least glibc has horrendously large inline for this, so wrap it */
-unsigned long long bb_makedev(unsigned int major, unsigned int minor) FAST_FUNC;
+unsigned long long bb_makedev(unsigned major, unsigned minor) FAST_FUNC;
 #undef makedev
 #define makedev(a,b) bb_makedev(a,b)
 #endif
@@ -1426,6 +1454,7 @@ typedef struct procps_status_t {
        char *argv0;
        char *exe;
        IF_SELINUX(char *context;)
+       IF_FEATURE_SHOW_THREADS(unsigned main_thread_pid;)
        /* Everything below must contain no ptrs to malloc'ed data:
         * it is memset(0) for each process in procps_scan() */
        unsigned long vsz, rss; /* we round it to kbytes */
@@ -1543,11 +1572,10 @@ void sha512_begin(sha512_ctx_t *ctx) FAST_FUNC;
 void sha512_hash(sha512_ctx_t *ctx, const void *buffer, size_t len) FAST_FUNC;
 void sha512_end(sha512_ctx_t *ctx, void *resbuf) FAST_FUNC;
 
-/* TODO: add global crc32_table pointer and create
- * LE and BE functions to calculate crc32 over given bytes.
- * Currently we have about five reimplementations...
- */
+extern uint32_t *global_crc32_table;
 uint32_t *crc32_filltable(uint32_t *tbl256, int endian) FAST_FUNC;
+uint32_t crc32_block_endian1(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC;
+uint32_t crc32_block_endian0(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC;
 
 typedef struct masks_labels_t {
        const char *labels;
@@ -1604,10 +1632,10 @@ extern const char bb_path_wtmp_file[];
  * get the list of currently mounted filesystems */
 #define bb_path_mtab_file IF_FEATURE_MTAB_SUPPORT("/etc/mtab")IF_NOT_FEATURE_MTAB_SUPPORT("/proc/mounts")
 
-#define bb_path_passwd_file "/etc/passwd"
-#define bb_path_shadow_file "/etc/shadow"
-#define bb_path_gshadow_file "/etc/gshadow"
-#define bb_path_group_file "/etc/group"
+#define bb_path_passwd_file  _PATH_PASSWD
+#define bb_path_group_file   _PATH_GROUP
+#define bb_path_shadow_file  _PATH_SHADOW
+#define bb_path_gshadow_file _PATH_GSHADOW
 
 #define bb_path_motd_file "/etc/motd"