...and add --debug and --syslog options.
With the switch to xlog(), it becomes trivial to add debug messages,
so
add an option to turn them on when requested.
Also, rpc.nfsd isn't a proper daemon per-se, so it makes more sense to
log errors to stderr where possible. Usually init scripts take care of
redirecting stderr output to syslog anyway.
For those that don't, add a --syslog option that forces all output
to go
to syslog instead. Note that even with this option, errors encountered
during option processing will still go to stderr.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
utils/nfsd/nfsd.c | 67 +++++++++++++++++++++++++++++++
+------------------
utils/nfsd/nfssvc.c | 47 +++++++++++++++++------------------
2 files changed, 66 insertions(+), 48 deletions(-)
diff --git a/utils/nfsd/nfsd.c b/utils/nfsd/nfsd.c
index 183681b..1589a9f 100644
--- a/utils/nfsd/nfsd.c
+++ b/utils/nfsd/nfsd.c
@@ -18,7 +18,6 @@
#include <string.h>
#include <errno.h>
#include <getopt.h>
-#include <syslog.h>
#include <netdb.h>
#include <sys/socket.h>
#include <netinet/in.h>
@@ -26,6 +25,7 @@
#include "nfslib.h"
#include "nfssvc.h"
+#include "xlog.h"
static void usage(const char *);
@@ -38,6 +38,8 @@ static struct option longopts[] =
{ "no-udp", 0, 0, 'U' },
{ "port", 1, 0, 'P' },
{ "port", 1, 0, 'p' },
+ { "debug", 0, 0, 'd' },
+ { "syslog", 0, 0, 's' },
{ NULL, 0, 0, 0 }
};
unsigned int protobits = NFSCTL_ALLBITS;
@@ -51,7 +53,7 @@ main(int argc, char **argv)
int count = 1, c, error, port, fd, found_one;
struct servent *ent;
struct hostent *hp;
- char *p;
+ char *p, *progname;
ent = getservbyname ("nfs", "udp");
if (ent != NULL)
@@ -59,8 +61,20 @@ main(int argc, char **argv)
else
port = 2049;
- while ((c = getopt_long(argc, argv, "H:hN:p:P:TU", longopts,
NULL)) != EOF) {
+ progname = strdup(basename(argv[0]));
+ if (!progname) {
+ fprintf(stderr, "%s: unable to allocate memory.\n", argv[0]);
+ exit(1);
+ }
+
+ xlog_syslog(0);
+ xlog_stderr(1);
+
+ while ((c = getopt_long(argc, argv, "dH:hN:p:P:sTU", longopts,
NULL)) != EOF) {
switch(c) {
+ case 'd':
+ xlog_config(D_ALL, 1);
+ break;
case 'H':
if (inet_addr(optarg) != INADDR_NONE) {
haddr = strdup(optarg);
@@ -68,8 +82,8 @@ main(int argc, char **argv)
haddr = inet_ntoa((*(struct in_addr*)(hp->h_addr_list[0])));
} else {
fprintf(stderr, "%s: Unknown hostname: %s\n",
- argv[0], optarg);
- usage(argv [0]);
+ progname, optarg);
+ usage(progname);
}
break;
case 'P': /* XXX for nfs-server compatibility */
@@ -77,8 +91,8 @@ main(int argc, char **argv)
port = atoi(optarg);
if (port <= 0 || port > 65535) {
fprintf(stderr, "%s: bad port number: %s\n",
- argv[0], optarg);
- usage(argv [0]);
+ progname, optarg);
+ usage(progname);
}
break;
case 'N':
@@ -97,6 +111,10 @@ main(int argc, char **argv)
exit(1);
}
break;
+ case 's':
+ xlog_syslog(1);
+ xlog_stderr(0);
+ break;
case 'T':
NFSCTL_TCPUNSET(protobits);
break;
@@ -106,14 +124,17 @@ main(int argc, char **argv)
default:
fprintf(stderr, "Invalid argument: '%c'\n", c);
case 'h':
- usage(argv[0]);
+ usage(progname);
}
}
+
+ xlog_open(progname);
+
/*
* Do some sanity checking, if the ctlbits are set
*/
if (!NFSCTL_UDPISSET(protobits) && !NFSCTL_TCPISSET(protobits)) {
- fprintf(stderr, "invalid protocol specified\n");
+ xlog(L_ERROR, "invalid protocol specified");
exit(1);
}
found_one = 0;
@@ -122,12 +143,12 @@ main(int argc, char **argv)
found_one = 1;
}
if (!found_one) {
- fprintf(stderr, "no version specified\n");
+ xlog(L_ERROR, "no version specified");
exit(1);
}
if (NFSCTL_VERISSET(versbits, 4) && !NFSCTL_TCPISSET(protobits)) {
- fprintf(stderr, "version 4 requires the TCP protocol\n");
+ xlog(L_ERROR, "version 4 requires the TCP protocol");
exit(1);
}
if (haddr == NULL) {
@@ -136,17 +157,15 @@ main(int argc, char **argv)
}
if (chdir(NFS_STATEDIR)) {
- fprintf(stderr, "%s: chdir(%s) failed: %s\n",
- argv [0], NFS_STATEDIR, strerror(errno));
+ xlog(L_ERROR, "chdir(%s) failed: %m", NFS_STATEDIR);
exit(1);
}
if (optind < argc) {
if ((count = atoi(argv[optind])) < 0) {
/* insane # of servers */
- fprintf(stderr,
- "%s: invalid server count (%d), using 1\n",
- argv[0], count);
+ xlog(L_ERROR, "invalid server count (%d), using 1",
+ count);
count = 1;
}
}
@@ -156,21 +175,21 @@ main(int argc, char **argv)
everything before spawning kernel threads. --Chip */
fd = open("/dev/null", O_RDWR);
if (fd == -1)
- perror("/dev/null");
+ xlog(L_ERROR, "Unable to open /dev/null: %m");
else {
+ /* switch xlog output to syslog since stderr is being closed */
+ xlog_syslog(1);
+ xlog_stderr(0);
(void) dup2(fd, 0);
(void) dup2(fd, 1);
(void) dup2(fd, 2);
}
closeall(3);
- openlog("nfsd", LOG_PID, LOG_DAEMON);
- if ((error = nfssvc(port, count, versbits, minorvers4, protobits,
haddr)) < 0) {
- int e = errno;
- syslog(LOG_ERR, "nfssvc: %s", strerror(e));
- closelog();
- }
+ if ((error = nfssvc(port, count, versbits, minorvers4, protobits,
haddr)) < 0)
+ xlog(L_ERROR, "nfssvc: errno %d (%m)", errno);
+ free(progname);
return (error != 0);
}
@@ -178,7 +197,7 @@ static void
usage(const char *prog)
{
fprintf(stderr, "Usage:\n"
- "%s [-H hostname] [-p|-P|--port port] [-N|--no-nfs-version
version ] [-T|--no-tcp] [-U|--no-udp] nrservs\n",
+ "%s [-d|--debug] [-H hostname] [-p|-P|--port port] [-N|--no-nfs-
version version ] [-s|--syslog] [-T|--no-tcp] [-U|--no-udp] nrservs
\n",
prog);
exit(2);
}
diff --git a/utils/nfsd/nfssvc.c b/utils/nfsd/nfssvc.c
index 6c5289a..0a7546a 100644
--- a/utils/nfsd/nfssvc.c
+++ b/utils/nfsd/nfssvc.c
@@ -16,10 +16,9 @@
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
-#include <syslog.h>
-
#include "nfslib.h"
+#include "xlog.h"
#define NFSD_PORTS_FILE "/proc/fs/nfsd/portlist"
#define NFSD_VERS_FILE "/proc/fs/nfsd/versions"
@@ -57,13 +56,13 @@ nfssvc_setfds(int port, unsigned int ctlbits,
char *haddr)
if (NFSCTL_UDPISSET(ctlbits)) {
udpfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (udpfd < 0) {
- syslog(LOG_ERR, "nfssvc: unable to create UPD socket: "
- "errno %d (%s)\n", errno, strerror(errno));
+ xlog(L_ERROR, "unable to create UDP socket: "
+ "errno %d (%m)", errno);
exit(1);
}
if (bind(udpfd, (struct sockaddr *)&sin, sizeof(sin)) < 0){
- syslog(LOG_ERR, "nfssvc: unable to bind UPD socket: "
- "errno %d (%s)\n", errno, strerror(errno));
+ xlog(L_ERROR, "unable to bind UDP socket: "
+ "errno %d (%m)", errno);
exit(1);
}
}
@@ -71,32 +70,32 @@ nfssvc_setfds(int port, unsigned int ctlbits,
char *haddr)
if (NFSCTL_TCPISSET(ctlbits)) {
tcpfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (tcpfd < 0) {
- syslog(LOG_ERR, "nfssvc: unable to createt tcp socket: "
- "errno %d (%s)\n", errno, strerror(errno));
+ xlog(L_ERROR, "unable to create TCP socket: "
+ "errno %d (%m)", errno);
exit(1);
}
if (setsockopt(tcpfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) <
0) {
- syslog(LOG_ERR, "nfssvc: unable to set SO_REUSEADDR: "
- "errno %d (%s)\n", errno, strerror(errno));
+ xlog(L_ERROR, "unable to set SO_REUSEADDR: "
+ "errno %d (%m)", errno);
exit(1);
}
if (bind(tcpfd, (struct sockaddr *)&sin, sizeof(sin)) < 0){
- syslog(LOG_ERR, "nfssvc: unable to bind TCP socket: "
- "errno %d (%s)\n", errno, strerror(errno));
+ xlog(L_ERROR, "unable to bind TCP socket: "
+ "errno %d (%m)", errno);
exit(1);
}
if (listen(tcpfd, 64) < 0){
- syslog(LOG_ERR, "nfssvc: unable to create listening socket: "
- "errno %d (%s)\n", errno, strerror(errno));
+ xlog(L_ERROR, "unable to create listening socket: "
+ "errno %d (%m)", errno);
exit(1);
}
}
if (udpfd >= 0) {
snprintf(buf, BUFSIZ,"%d\n", udpfd);
if (write(fd, buf, strlen(buf)) != strlen(buf)) {
- syslog(LOG_ERR,
- "nfssvc: writing fds to kernel failed: errno %d (%s)",
- errno, strerror(errno));
+ xlog(L_ERROR,
+ "writing fds to kernel failed: errno %d (%m)",
+ errno);
}
close(fd);
fd = -1;
@@ -106,9 +105,9 @@ nfssvc_setfds(int port, unsigned int ctlbits,
char *haddr)
fd = open(NFSD_PORTS_FILE, O_WRONLY);
snprintf(buf, BUFSIZ,"%d\n", tcpfd);
if (write(fd, buf, strlen(buf)) != strlen(buf)) {
- syslog(LOG_ERR,
- "nfssvc: writing fds to kernel failed: errno %d (%s)",
- errno, strerror(errno));
+ xlog(L_ERROR,
+ "writing fds to kernel failed: errno %d (%m)",
+ errno);
}
}
close(fd);
@@ -138,11 +137,11 @@ nfssvc_versbits(unsigned int ctlbits, int
minorvers4)
off += snprintf(ptr+off, BUFSIZ - off, "%c4.%d",
minorvers4 > 0 ? '+' : '-',
n);
+ xlog(D_GENERAL, "Writing version string to kernel: %s", buf);
snprintf(ptr+off, BUFSIZ - off, "\n");
- if (write(fd, buf, strlen(buf)) != strlen(buf)) {
- syslog(LOG_ERR, "nfssvc: Setting version failed: errno %d (%s)",
- errno, strerror(errno));
- }
+ if (write(fd, buf, strlen(buf)) != strlen(buf))
+ xlog(L_ERROR, "Setting version failed: errno %d (%m)", errno);
+
close(fd);
return;
--
1.6.0.6
