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syslogd: getopt_ulflags'ification (save ~50 bytes)

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This commit is contained in:
Denis Vlasenko 2006-09-30 19:20:00 +00:00
parent 1decd0e529
commit 14c1940255
1 changed files with 157 additions and 144 deletions
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301
sysklogd/syslogd.c
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@ -23,13 +23,11 @@
#include <sys/syslog.h> #include <sys/syslog.h>
#include <sys/uio.h> #include <sys/uio.h>
/* Path for the file where all log messages are written */
#define __LOG_FILE "/var/log/messages"
/* Path to the unix socket */ /* Path to the unix socket */
static char lfile[MAXPATHLEN]; static char lfile[MAXPATHLEN];
static const char *logFilePath = __LOG_FILE; /* Path for the file where all log messages are written */
static const char *logFilePath = "/var/log/messages";
#ifdef CONFIG_FEATURE_ROTATE_LOGFILE #ifdef CONFIG_FEATURE_ROTATE_LOGFILE
/* max size of message file before being rotated */ /* max size of message file before being rotated */
@ -63,15 +61,50 @@ static int RemotePort = 514;
#endif #endif
/* options */ /* options */
static unsigned opts; static unsigned option_mask;
#define SYSLOG_OPT_small (1) /* Correct regardless of combination of CONFIG_xxx */
#define SYSLOG_OPT_remotelog (2) enum {
#define SYSLOG_OPT_locallog (4) OPTBIT_mark = 0, // -m
#define SYSLOG_OPT_circularlog (8) OPTBIT_nofork, // -n
OPTBIT_outfile, // -O
OPTBIT_loglevel, // -l
OPTBIT_small, // -S
USE_FEATURE_ROTATE_LOGFILE(OPTBIT_filesize ,) // -s
USE_FEATURE_ROTATE_LOGFILE(OPTBIT_rotatecnt ,) // -b
USE_FEATURE_REMOTE_LOG( OPTBIT_remote ,) // -R
USE_FEATURE_REMOTE_LOG( OPTBIT_localtoo ,) // -L
USE_FEATURE_IPC_SYSLOG( OPTBIT_circularlog,) // -C
OPT_mark = 1 << OPTBIT_mark ,
OPT_nofork = 1 << OPTBIT_nofork ,
OPT_outfile = 1 << OPTBIT_outfile ,
OPT_loglevel = 1 << OPTBIT_loglevel,
OPT_small = 1 << OPTBIT_small ,
OPT_filesize = USE_FEATURE_ROTATE_LOGFILE((1 << OPTBIT_filesize )) + 0,
OPT_rotatecnt = USE_FEATURE_ROTATE_LOGFILE((1 << OPTBIT_rotatecnt )) + 0,
OPT_remotelog = USE_FEATURE_REMOTE_LOG( (1 << OPTBIT_remote )) + 0,
OPT_locallog = USE_FEATURE_REMOTE_LOG( (1 << OPTBIT_localtoo )) + 0,
OPT_circularlog = USE_FEATURE_IPC_SYSLOG( (1 << OPTBIT_circularlog)) + 0,
};
#define OPTION_STR "m:nO:l:S" \
USE_FEATURE_ROTATE_LOGFILE("s:" ) \
USE_FEATURE_ROTATE_LOGFILE("b:" ) \
USE_FEATURE_REMOTE_LOG( "R:" ) \
USE_FEATURE_REMOTE_LOG( "L" ) \
USE_FEATURE_IPC_SYSLOG( "C::")
#define OPTION_DECL *opt_m, *opt_l \
USE_FEATURE_ROTATE_LOGFILE(,*opt_s) \
USE_FEATURE_ROTATE_LOGFILE(,*opt_b) \
USE_FEATURE_REMOTE_LOG( ,*opt_R) \
USE_FEATURE_IPC_SYSLOG( ,*opt_C = NULL)
#define OPTION_PARAM &opt_m, &logFilePath, &opt_l \
USE_FEATURE_ROTATE_LOGFILE(,&opt_s) \
USE_FEATURE_ROTATE_LOGFILE(,&opt_b) \
USE_FEATURE_REMOTE_LOG( ,&opt_R) \
USE_FEATURE_IPC_SYSLOG( ,&opt_C)
#define MAXLINE 1024 /* maximum line length */ #define MAXLINE 1024 /* maximum line length */
/* circular buffer variables/structures */ /* circular buffer variables/structures */
#ifdef CONFIG_FEATURE_IPC_SYSLOG #ifdef CONFIG_FEATURE_IPC_SYSLOG
@ -85,28 +118,28 @@ static unsigned opts;
#include <sys/shm.h> #include <sys/shm.h>
/* our shared key */ /* our shared key */
static const long KEY_ID = 0x414e4547; /*"GENA" */ #define KEY_ID ((long)0x414e4547) /* "GENA" */
// Semaphore operation structures // Semaphore operation structures
static struct shbuf_ds { static struct shbuf_ds {
int size; // size of data written int size; // size of data written
int head; // start of message list int head; // start of message list
int tail; // end of message list int tail; // end of message list
char data[1]; // data/messages char data[1]; // data/messages
} *buf = NULL; // shared memory pointer } *shbuf = NULL; // shared memory pointer
static struct sembuf SMwup[1] = { {1, -1, IPC_NOWAIT} }; // set SMwup static struct sembuf SMwup[1] = { {1, -1, IPC_NOWAIT} }; // set SMwup
static struct sembuf SMwdn[3] = { {0, 0}, {1, 0}, {1, +1} }; // set SMwdn static struct sembuf SMwdn[3] = { {0, 0}, {1, 0}, {1, +1} }; // set SMwdn
static int shmid = -1; // ipc shared memory id static int shmid = -1; // ipc shared memory id
static int s_semid = -1; // ipc semaphore id static int s_semid = -1; // ipc semaphore id
static int shm_size = ((CONFIG_FEATURE_IPC_SYSLOG_BUFFER_SIZE)*1024); // default shm size static int shm_size = ((CONFIG_FEATURE_IPC_SYSLOG_BUFFER_SIZE)*1024); // default shm size
static void ipcsyslog_cleanup(void) static void ipcsyslog_cleanup(void)
{ {
printf("Exiting Syslogd!\n"); puts("Exiting syslogd!");
if (shmid != -1) { if (shmid != -1) {
shmdt(buf); shmdt(shbuf);
} }
if (shmid != -1) { if (shmid != -1) {
@ -119,22 +152,26 @@ static void ipcsyslog_cleanup(void)
static void ipcsyslog_init(void) static void ipcsyslog_init(void)
{ {
if (buf == NULL) { if (shbuf == NULL) {
if ((shmid = shmget(KEY_ID, shm_size, IPC_CREAT | 1023)) == -1) { shmid = shmget(KEY_ID, shm_size, IPC_CREAT | 1023);
if (shmid == -1) {
bb_perror_msg_and_die("shmget"); bb_perror_msg_and_die("shmget");
} }
if ((buf = shmat(shmid, NULL, 0)) == NULL) { shbuf = shmat(shmid, NULL, 0);
if (!shbuf) {
bb_perror_msg_and_die("shmat"); bb_perror_msg_and_die("shmat");
} }
buf->size = shm_size - sizeof(*buf); shbuf->size = shm_size - sizeof(*shbuf);
buf->head = buf->tail = 0; shbuf->head = shbuf->tail = 0;
// we'll trust the OS to set initial semval to 0 (let's hope) // we'll trust the OS to set initial semval to 0 (let's hope)
if ((s_semid = semget(KEY_ID, 2, IPC_CREAT | IPC_EXCL | 1023)) == -1) { s_semid = semget(KEY_ID, 2, IPC_CREAT | IPC_EXCL | 1023);
if (s_semid == -1) {
if (errno == EEXIST) { if (errno == EEXIST) {
if ((s_semid = semget(KEY_ID, 2, 0)) == -1) { s_semid = semget(KEY_ID, 2, 0);
if (s_semid == -1) {
bb_perror_msg_and_die("semget"); bb_perror_msg_and_die("semget");
} }
} else { } else {
@ -179,69 +216,66 @@ static void circ_message(const char *msg)
* Note: This algorithm uses Linux IPC mechanism w/ shared memory and semaphores to provide * Note: This algorithm uses Linux IPC mechanism w/ shared memory and semaphores to provide
* a threadsafe way of handling shared memory operations. * a threadsafe way of handling shared memory operations.
*/ */
if ((buf->tail + l) < buf->size) { if ((shbuf->tail + l) < shbuf->size) {
/* before we append the message we need to check the HEAD so that we won't /* before we append the message we need to check the HEAD so that we won't
overwrite any of the message that we still need and adjust HEAD to point overwrite any of the message that we still need and adjust HEAD to point
to the next message! */ to the next message! */
if (buf->tail < buf->head) { if (shbuf->tail < shbuf->head) {
if ((buf->tail + l) >= buf->head) { if ((shbuf->tail + l) >= shbuf->head) {
/* we need to move the HEAD to point to the next message /* we need to move the HEAD to point to the next message
* Theoretically we have enough room to add the whole message to the * Theoretically we have enough room to add the whole message to the
* buffer, because of the first outer IF statement, so we don't have * buffer, because of the first outer IF statement, so we don't have
* to worry about overflows here! * to worry about overflows here!
*/ */
int k = buf->tail + l - buf->head; /* we need to know how many bytes /* we need to know how many bytes we are overwriting to make enough room */
we are overwriting to make int k = shbuf->tail + l - shbuf->head;
enough room */
char *c = char *c =
memchr(buf->data + buf->head + k, '\0', memchr(shbuf->data + shbuf->head + k, '\0',
buf->size - (buf->head + k)); shbuf->size - (shbuf->head + k));
if (c != NULL) { /* do a sanity check just in case! */ if (c != NULL) { /* do a sanity check just in case! */
buf->head = c - buf->data + 1; /* we need to convert pointer to /* we need to convert pointer to offset + skip the '\0'
offset + skip the '\0' since since we need to point to the beginning of the next message */
we need to point to the beginning shbuf->head = c - shbuf->data + 1;
of the next message */
/* Note: HEAD is only used to "retrieve" messages, it's not used /* Note: HEAD is only used to "retrieve" messages, it's not used
when writing messages into our buffer */ when writing messages into our buffer */
} else { /* show an error message to know we messed up? */ } else { /* show an error message to know we messed up? */
printf(fail_msg,""); printf(fail_msg,"");
buf->head = 0; shbuf->head = 0;
} }
} }
} }
/* in other cases no overflows have been done yet, so we don't care! */ /* in other cases no overflows have been done yet, so we don't care! */
/* we should be ok to append the message now */ /* we should be ok to append the message now */
strncpy(buf->data + buf->tail, msg, l); /* append our message */ strncpy(shbuf->data + shbuf->tail, msg, l); /* append our message */
buf->tail += l; /* count full message w/ '\0' terminating char */ shbuf->tail += l; /* count full message w/ '\0' terminating char */
} else { } else {
/* we need to break up the message and "circle" it around */ /* we need to break up the message and "circle" it around */
char *c; char *c;
int k = buf->tail + l - buf->size; /* count # of bytes we don't fit */ int k = shbuf->tail + l - shbuf->size; /* count # of bytes we don't fit */
/* We need to move HEAD! This is always the case since we are going /* We need to move HEAD! This is always the case since we are going
* to "circle" the message. * to "circle" the message. */
*/ c = memchr(shbuf->data + k, '\0', shbuf->size - k);
c = memchr(buf->data + k, '\0', buf->size - k);
if (c != NULL) { /* if we don't have '\0'??? weird!!! */ if (c != NULL) { /* if we don't have '\0'??? weird!!! */
/* move head pointer */ /* move head pointer */
buf->head = c - buf->data + 1; shbuf->head = c - shbuf->data + 1;
/* now write the first part of the message */ /* now write the first part of the message */
strncpy(buf->data + buf->tail, msg, l - k - 1); strncpy(shbuf->data + shbuf->tail, msg, l - k - 1);
/* ALWAYS terminate end of buffer w/ '\0' */ /* ALWAYS terminate end of buffer w/ '\0' */
buf->data[buf->size - 1] = '\0'; shbuf->data[shbuf->size - 1] = '\0';
/* now write out the rest of the string to the beginning of the buffer */ /* now write out the rest of the string to the beginning of the buffer */
strcpy(buf->data, &msg[l - k - 1]); strcpy(shbuf->data, &msg[l - k - 1]);
/* we need to place the TAIL at the end of the message */ /* we need to place the TAIL at the end of the message */
buf->tail = k + 1; shbuf->tail = k + 1;
} else { } else {
printf(fail_msg, " from the beginning"); printf(fail_msg, " from the beginning");
buf->head = buf->tail = 0; /* reset buffer, since it's probably corrupted */ shbuf->head = shbuf->tail = 0; /* reset buffer, since it's probably corrupted */
} }
} }
@ -270,7 +304,7 @@ static void message(char *fmt, ...)
fl.l_len = 1; fl.l_len = 1;
#ifdef CONFIG_FEATURE_IPC_SYSLOG #ifdef CONFIG_FEATURE_IPC_SYSLOG
if ((opts & SYSLOG_OPT_circularlog) && (buf != NULL)) { if ((option_mask & OPT_circularlog) && shbuf) {
char b[1024]; char b[1024];
va_start(arguments, fmt); va_start(arguments, fmt);
@ -290,29 +324,29 @@ static void message(char *fmt, ...)
if (ENABLE_FEATURE_ROTATE_LOGFILE && logFileSize > 0 ) { if (ENABLE_FEATURE_ROTATE_LOGFILE && logFileSize > 0 ) {
struct stat statf; struct stat statf;
int r = fstat(fd, &statf); int r = fstat(fd, &statf);
if( !r && (statf.st_mode & S_IFREG) if (!r && (statf.st_mode & S_IFREG)
&& (lseek(fd,0,SEEK_END) > logFileSize) ) { && (lseek(fd,0,SEEK_END) > logFileSize)) {
if(logFileRotate > 0) { if (logFileRotate > 0) {
int i; int i = strlen(logFilePath) + 4;
char oldFile[(strlen(logFilePath)+4)]; char oldFile[i];
char newFile[(strlen(logFilePath)+4)]; char newFile[i];
for(i=logFileRotate-1;i>0;i--) { for (i=logFileRotate-1; i>0; i--) {
sprintf(oldFile, "%s.%d", logFilePath, i-1); sprintf(oldFile, "%s.%d", logFilePath, i-1);
sprintf(newFile, "%s.%d", logFilePath, i); sprintf(newFile, "%s.%d", logFilePath, i);
rename(oldFile, newFile); rename(oldFile, newFile);
} }
sprintf(newFile, "%s.%d", logFilePath, 0); sprintf(newFile, "%s.%d", logFilePath, 0);
fl.l_type = F_UNLCK; fl.l_type = F_UNLCK;
fcntl (fd, F_SETLKW, &fl); fcntl(fd, F_SETLKW, &fl);
close(fd); close(fd);
rename(logFilePath, newFile); rename(logFilePath, newFile);
fd = device_open (logFilePath, fd = device_open(logFilePath,
O_WRONLY | O_CREAT | O_NOCTTY | O_APPEND | O_WRONLY | O_CREAT | O_NOCTTY | O_APPEND |
O_NONBLOCK); O_NONBLOCK);
fl.l_type = F_WRLCK; fl.l_type = F_WRLCK;
fcntl (fd, F_SETLKW, &fl); fcntl(fd, F_SETLKW, &fl);
} else { } else {
ftruncate( fd, 0 ); ftruncate(fd, 0);
} }
} }
} }
@ -362,10 +396,12 @@ static void logMessage(int pri, char *msg)
CODE *c_pri, *c_fac; CODE *c_pri, *c_fac;
if (pri != 0) { if (pri != 0) {
for (c_fac = facilitynames; c_fac = facilitynames;
c_fac->c_name && !(c_fac->c_val == LOG_FAC(pri) << 3); c_fac++); while (c_fac->c_name && !(c_fac->c_val == LOG_FAC(pri) << 3))
for (c_pri = prioritynames; c_fac++;
c_pri->c_name && !(c_pri->c_val == LOG_PRI(pri)); c_pri++); c_pri = prioritynames;
while (c_pri->c_name && !(c_pri->c_val == LOG_PRI(pri)))
c_pri++;
if (c_fac->c_name == NULL || c_pri->c_name == NULL) { if (c_fac->c_name == NULL || c_pri->c_name == NULL) {
snprintf(res, sizeof(res), "<%d>", pri); snprintf(res, sizeof(res), "<%d>", pri);
} else { } else {
@ -387,7 +423,7 @@ static void logMessage(int pri, char *msg)
/* todo: supress duplicates */ /* todo: supress duplicates */
#ifdef CONFIG_FEATURE_REMOTE_LOG #ifdef CONFIG_FEATURE_REMOTE_LOG
if (opts & SYSLOG_OPT_remotelog) { if (option_mask & OPT_remotelog) {
char line[MAXLINE + 1]; char line[MAXLINE + 1];
/* trying connect the socket */ /* trying connect the socket */
if (-1 == remotefd) { if (-1 == remotefd) {
@ -401,7 +437,7 @@ static void logMessage(int pri, char *msg)
retry: retry:
/* send message to remote logger */ /* send message to remote logger */
if(( -1 == sendto(remotefd, line, strlen(line), 0, if ((-1 == sendto(remotefd, line, strlen(line), 0,
(struct sockaddr *) &remoteaddr, (struct sockaddr *) &remoteaddr,
sizeof(remoteaddr))) && (errno == EINTR)) { sizeof(remoteaddr))) && (errno == EINTR)) {
/* sleep now seconds and retry (with now * 2) */ /* sleep now seconds and retry (with now * 2) */
@ -412,12 +448,12 @@ retry:
} }
} }
if (opts & SYSLOG_OPT_locallog) if (option_mask & OPT_locallog)
#endif #endif
{ {
/* now spew out the message to wherever it is supposed to go */ /* now spew out the message to wherever it is supposed to go */
if (pri == 0 || LOG_PRI(pri) < logLevel) { if (pri == 0 || LOG_PRI(pri) < logLevel) {
if (opts & SYSLOG_OPT_small) if (option_mask & OPT_small)
message("%s %s\n", timestamp, msg); message("%s %s\n", timestamp, msg);
else else
message("%s %s %s %s\n", timestamp, LocalHostName, res, msg); message("%s %s %s %s\n", timestamp, LocalHostName, res, msg);
@ -518,24 +554,23 @@ static void doSyslogd(void)
sock_fd = xsocket(AF_UNIX, SOCK_DGRAM, 0); sock_fd = xsocket(AF_UNIX, SOCK_DGRAM, 0);
addrLength = sizeof(sunx.sun_family) + strlen(sunx.sun_path); addrLength = sizeof(sunx.sun_family) + strlen(sunx.sun_path);
if (bind(sock_fd, (struct sockaddr *) &sunx, addrLength) < 0) { if (bind(sock_fd, (struct sockaddr *) &sunx, addrLength) < 0) {
bb_perror_msg_and_die("Could not connect to socket " _PATH_LOG); bb_perror_msg_and_die("cannot connect to socket %s", lfile);
} }
if (chmod(lfile, 0666) < 0) { if (chmod(lfile, 0666) < 0) {
bb_perror_msg_and_die("Could not set permission on " _PATH_LOG); bb_perror_msg_and_die("cannot set permission on %s", lfile);
} }
if (ENABLE_FEATURE_IPC_SYSLOG && opts & SYSLOG_OPT_circularlog) { if (ENABLE_FEATURE_IPC_SYSLOG && (option_mask & OPT_circularlog)) {
ipcsyslog_init(); ipcsyslog_init();
} }
if (ENABLE_FEATURE_REMOTE_LOG && opts & SYSLOG_OPT_remotelog) { if (ENABLE_FEATURE_REMOTE_LOG && (option_mask & OPT_remotelog)) {
init_RemoteLog(); init_RemoteLog();
} }
logMessage(LOG_SYSLOG | LOG_INFO, "syslogd started: " "BusyBox v" BB_VER ); logMessage(LOG_SYSLOG | LOG_INFO, "syslogd started: " "BusyBox v" BB_VER );
for (;;) { for (;;) {
FD_ZERO(&fds); FD_ZERO(&fds);
FD_SET(sock_fd, &fds); FD_SET(sock_fd, &fds);
@ -544,7 +579,7 @@ static void doSyslogd(void)
/* alarm may have happened. */ /* alarm may have happened. */
continue; continue;
} }
bb_perror_msg_and_die("select error"); bb_perror_msg_and_die("select");
} }
if (FD_ISSET(sock_fd, &fds)) { if (FD_ISSET(sock_fd, &fds)) {
@ -566,88 +601,66 @@ static void doSyslogd(void)
} /* for main loop */ } /* for main loop */
} }
int syslogd_main(int argc, char **argv) int syslogd_main(int argc, char **argv)
{ {
int opt; char OPTION_DECL;
int doFork = TRUE;
char *p; char *p;
/* do normal option parsing */ /* do normal option parsing */
while ((opt = getopt(argc, argv, "m:nO:s:Sb:R:LC::")) > 0) { option_mask = bb_getopt_ulflags(argc, argv, OPTION_STR, OPTION_PARAM);
switch (opt) { if (option_mask & OPT_mark) MarkInterval = atoi(opt_m) * 60; // -m
case 'm': //if (option_mask & OPT_nofork) // -n
MarkInterval = atoi(optarg) * 60; //if (option_mask & OPT_outfile) // -O
break; if (option_mask & OPT_loglevel) { // -l
case 'n': logLevel = atoi(opt_l);
doFork = FALSE; /* Valid levels are between 1 and 8 */
break; if (logLevel < 1 || logLevel > 8)
case 'O':
logFilePath = optarg;
break;
case 'l':
logLevel = atoi(optarg);
/* Valid levels are between 1 and 8 */
if (logLevel < 1 || logLevel > 8) {
bb_show_usage();
}
break;
#ifdef CONFIG_FEATURE_ROTATE_LOGFILE
case 's':
logFileSize = atoi(optarg) * 1024;
break;
case 'b':
logFileRotate = atoi(optarg);
if( logFileRotate > 99 ) logFileRotate = 99;
break;
#endif
#ifdef CONFIG_FEATURE_REMOTE_LOG
case 'R':
RemoteHost = xstrdup(optarg);
if ((p = strchr(RemoteHost, ':'))) {
RemotePort = atoi(p + 1);
*p = '\0';
}
opts |= SYSLOG_OPT_remotelog;
break;
case 'L':
opts |= SYSLOG_OPT_locallog;
break;
#endif
#ifdef CONFIG_FEATURE_IPC_SYSLOG
case 'C':
if (optarg) {
int buf_size = atoi(optarg);
if (buf_size >= 4) {
shm_size = buf_size * 1024;
}
}
opts |= SYSLOG_OPT_circularlog;
break;
#endif
case 'S':
opts |= SYSLOG_OPT_small;
break;
default:
bb_show_usage(); bb_show_usage();
}
//if (option_mask & OPT_small) // -S
#if ENABLE_FEATURE_ROTATE_LOGFILE
if (option_mask & OPT_filesize) logFileSize = atoi(opt_s) * 1024; // -s
if (option_mask & OPT_rotatecnt) { // -b
logFileRotate = atoi(opt_b);
if (logFileRotate > 99) logFileRotate = 99;
}
#endif
#if ENABLE_FEATURE_REMOTE_LOG
if (option_mask & OPT_remotelog) { // -R
RemoteHost = xstrdup(opt_R);
p = strchr(RemoteHost, ':');
if (p) {
RemotePort = atoi(p + 1);
*p = '\0';
} }
} }
//if (option_mask & OPT_locallog) // -L
#endif
#if ENABLE_FEATURE_IPC_SYSLOG
if (option_mask & OPT_circularlog) { // -C
if (opt_C) {
int buf_size = atoi(opt_C);
if (buf_size >= 4)
shm_size = buf_size * 1024;
}
}
#endif
/* If they have not specified remote logging, then log locally */ /* If they have not specified remote logging, then log locally */
if (ENABLE_FEATURE_REMOTE_LOG && !(opts & SYSLOG_OPT_remotelog)) if (ENABLE_FEATURE_REMOTE_LOG && !(option_mask & OPT_remotelog))
opts |= SYSLOG_OPT_locallog; option_mask |= OPT_locallog;
/* Store away localhost's name before the fork */ /* Store away localhost's name before the fork */
gethostname(LocalHostName, sizeof(LocalHostName)); gethostname(LocalHostName, sizeof(LocalHostName));
if ((p = strchr(LocalHostName, '.'))) { p = strchr(LocalHostName, '.');
if (p) {
*p = '\0'; *p = '\0';
} }
umask(0); umask(0);
if (doFork == TRUE) { if (!(option_mask & OPT_nofork)) {
#ifdef BB_NOMMU #ifdef BB_NOMMU
vfork_daemon_rexec(0, 1, argc, argv, "-n"); vfork_daemon_rexec(0, 1, argc, argv, "-n");
#else #else