-/*
- * Copyright (C) 1995-2005, Index Data ApS
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) 1995-2012 Index Data
* See the file LICENSE for details.
- *
- * $Id: unix.c,v 1.9 2005-01-16 21:51:50 adam Exp $
- * UNIX socket COMSTACK. By Morten Bøgeskov.
*/
/**
* \file unix.c
* \brief Implements UNIX domain socket COMSTACK
*/
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
#ifndef WIN32
#include <string.h>
#include <stdlib.h>
#include <errno.h>
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
+#if HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
#include <fcntl.h>
#include <signal.h>
#if HAVE_PWD_H
#include <pwd.h>
#endif
-#if HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#if HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#endif
#include <yaz/unix.h>
-#include <yaz/nmem.h>
+#include <yaz/errno.h>
#ifndef YAZ_SOCKLEN_T
#define YAZ_SOCKLEN_T int
#endif
-static int unix_close(COMSTACK h);
+/* stat(2) masks: S_IFMT and S_IFSOCK may not be defined in gcc -ansi mode */
+#if __STRICT_ANSI__
+#ifndef S_IFSOCK
+#define S_IFMT 0170000
+#define S_IFSOCK 0140000
+#endif
+#endif
+
+static void unix_close(COMSTACK h);
static int unix_put(COMSTACK h, char *buf, int size);
static int unix_get(COMSTACK h, char **buf, int *bufsize);
static int unix_connect(COMSTACK h, void *address);
static int unix_rcvconnect(COMSTACK h);
static int unix_bind(COMSTACK h, void *address, int mode);
static int unix_listen(COMSTACK h, char *raddr, int *addrlen,
- int (*check_ip)(void *cd, const char *a, int len, int type),
- void *cd);
+ int (*check_ip)(void *cd, const char *a, int len, int type),
+ void *cd);
static int unix_set_blocking(COMSTACK p, int blocking);
static COMSTACK unix_accept(COMSTACK h);
-static char *unix_addrstr(COMSTACK h);
+static const char *unix_addrstr(COMSTACK h);
static void *unix_straddr(COMSTACK h, const char *str);
#ifndef SUN_LEN
#define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) \
- + strlen ((ptr)->sun_path))
+ + strlen ((ptr)->sun_path))
#endif
#if 0
#define TRC(x) x
int written; /* -1 if we aren't writing */
int towrite; /* to verify against user input */
- int (*complete)(const unsigned char *buf, int len); /* length/comple. */
+ int (*complete)(const char *buf, int len); /* length/complete. */
struct sockaddr_un addr; /* returned by cs_straddr */
int uid;
int gid;
* This function is always called through the cs_create() macro.
* s >= 0: socket has already been established for us.
*/
-COMSTACK unix_type(int s, int blocking, int protocol, void *vp)
+COMSTACK unix_type(int s, int flags, int protocol, void *vp)
{
COMSTACK p;
unix_state *state;
int new_socket;
if (!unix_init ())
- return 0;
+ return 0;
if (s < 0)
{
- if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
- return 0;
- new_socket = 1;
+ if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
+ return 0;
+ new_socket = 1;
}
else
- new_socket = 0;
+ new_socket = 0;
if (!(p = (struct comstack *)xmalloc(sizeof(struct comstack))))
- return 0;
+ return 0;
if (!(state = (struct unix_state *)(p->cprivate =
- xmalloc(sizeof(unix_state)))))
- return 0;
+ xmalloc(sizeof(unix_state)))))
+ return 0;
- if (!((p->blocking = blocking)&1))
+ p->flags = flags;
+ if (!(p->flags&CS_FLAGS_BLOCKING))
{
- if (fcntl(s, F_SETFL, O_NONBLOCK) < 0)
- return 0;
+ if (fcntl(s, F_SETFL, O_NONBLOCK) < 0)
+ return 0;
#ifndef MSG_NOSIGNAL
- signal (SIGPIPE, SIG_IGN);
+ signal (SIGPIPE, SIG_IGN);
#endif
}
p->state = new_socket ? CS_ST_UNBND : CS_ST_IDLE; /* state of line */
p->event = CS_NONE;
p->cerrno = 0;
- p->stackerr = 0;
+ p->user = 0;
state->altbuf = 0;
state->altsize = state->altlen = 0;
state->towrite = state->written = -1;
if (protocol == PROTO_WAIS)
- state->complete = completeWAIS;
+ state->complete = completeWAIS;
else
- state->complete = cs_complete_auto;
+ state->complete = cs_complete_auto;
p->timeout = COMSTACK_DEFAULT_TIMEOUT;
TRC(fprintf(stderr, "Created new UNIX comstack\n"));
{
char *cp;
if (!unix_init ())
- return 0;
+ return 0;
TRC(fprintf(stderr, "unix_strtoaddress: %s\n", str ? str : "NULL"));
add->sun_family = AF_UNIX;
- strncpy(add->sun_path, str, sizeof(add->sun_path));
+ strncpy(add->sun_path, str, sizeof(add->sun_path)-1);
+ add->sun_path[sizeof(add->sun_path)-1] = 0;
cp = strchr (add->sun_path, ':');
if (cp)
- *cp = '\0';
+ *cp = '\0';
return 1;
}
-static void *unix_straddr(COMSTACK h, const char *str)
+static void *unix_straddr1(COMSTACK h, const char *str, char *f)
{
unix_state *sp = (unix_state *)h->cprivate;
- char * s = strdup(str);
- char * f = s;
+ char * s = f;
const char * file = NULL;
char * eol;
if ((eol = strchr(s, ',')))
{
- do
- {
- if ((eol = strchr(s, ',')))
- *eol++ = '\0';
- if (sp->uid == -1 && strncmp(s, "user=", 5) == 0)
- {
- char * arg = s + 5;
- if (strspn(arg, "0123456789") == strlen(arg))
- {
- sp->uid = atoi(arg);
- }
- else
- {
- struct passwd * pw = getpwnam(arg);
- if(pw == NULL)
- {
- printf("No such user\n");
- free(f);
- return 0;
- }
- sp->uid = pw->pw_uid;
- }
- }
- else if (sp->gid == -1 && strncmp(s, "group=", 6) == 0)
- {
- char * arg = s + 6;
- if (strspn(arg, "0123456789") == strlen(arg))
- {
- sp->gid = atoi(arg);
- }
- else
- {
- struct group * gr = getgrnam(arg);
- if (gr == NULL)
- {
- printf("No such group\n");
- free(f);
- return 0;
- }
- sp->gid = gr->gr_gid;
- }
- }
- else if (sp->umask == -1 && strncmp(s, "umask=", 6) == 0)
- {
- char * end;
- char * arg = s + 6;
-
- sp->umask = strtol(arg, &end, 8);
- if (errno == EINVAL ||
- *end)
- {
- printf("Invalid umask\n");
- free(f);
- return 0;
- }
- }
- else if (file == NULL && strncmp(s, "file=", 5) == 0)
- {
- char * arg = s + 5;
- file = arg;
- }
- else
- {
- printf("invalid or double argument: %s\n", s);
- free(f);
- return 0;
- }
- } while((s = eol));
+ do
+ {
+ if ((eol = strchr(s, ',')))
+ *eol++ = '\0';
+ if (sp->uid == -1 && strncmp(s, "user=", 5) == 0)
+ {
+ char * arg = s + 5;
+ if (strspn(arg, "0123456789") == strlen(arg))
+ {
+ sp->uid = atoi(arg);
+ }
+ else
+ {
+ struct passwd * pw = getpwnam(arg);
+ if(pw == NULL)
+ {
+ printf("No such user\n");
+ return 0;
+ }
+ sp->uid = pw->pw_uid;
+ }
+ }
+ else if (sp->gid == -1 && strncmp(s, "group=", 6) == 0)
+ {
+ char * arg = s + 6;
+ if (strspn(arg, "0123456789") == strlen(arg))
+ {
+ sp->gid = atoi(arg);
+ }
+ else
+ {
+ struct group * gr = getgrnam(arg);
+ if (gr == NULL)
+ {
+ printf("No such group\n");
+ return 0;
+ }
+ sp->gid = gr->gr_gid;
+ }
+ }
+ else if (sp->umask == -1 && strncmp(s, "umask=", 6) == 0)
+ {
+ char * end;
+ char * arg = s + 6;
+
+ sp->umask = strtol(arg, &end, 8);
+ if (errno == EINVAL ||
+ *end)
+ {
+ printf("Invalid umask\n");
+ return 0;
+ }
+ }
+ else if (file == NULL && strncmp(s, "file=", 5) == 0)
+ {
+ char * arg = s + 5;
+ file = arg;
+ }
+ else
+ {
+ printf("invalid or double argument: %s\n", s);
+ return 0;
+ }
+ } while((s = eol));
}
else
{
- file = str;
+ file = str;
}
if(! file)
{
- errno = EINVAL;
- return 0;
+ errno = EINVAL;
+ return 0;
}
TRC(fprintf(stderr, "unix_straddr: %s\n", str ? str : "NULL"));
if (!unix_strtoaddr_ex (file, &sp->addr))
- {
- free(f);
- return 0;
- }
- free(f);
+ return 0;
return &sp->addr;
}
+static void *unix_straddr(COMSTACK h, const char *str)
+{
+ char *f = xstrdup(str);
+ void *vp = unix_straddr1(h, str, f);
+ xfree(f);
+ return vp;
+}
+
struct sockaddr_un *unix_strtoaddr(const char *str)
{
static struct sockaddr_un add;
TRC(fprintf(stderr, "unix_strtoaddr: %s\n", str ? str : "NULL"));
if (!unix_strtoaddr_ex (str, &add))
- return 0;
+ return 0;
return &add;
}
{
unix_state *sp = (unix_state *)h->cprivate;
- return sp->altlen && (*sp->complete)((unsigned char *) sp->altbuf,
- sp->altlen);
+ return sp->altlen && (*sp->complete)(sp->altbuf, sp->altlen);
}
/*
{
struct sockaddr_un *add = (struct sockaddr_un *)address;
int r;
+ int i;
TRC(fprintf(stderr, "unix_connect\n"));
h->io_pending = 0;
if (h->state != CS_ST_UNBND)
{
- h->cerrno = CSOUTSTATE;
- return -1;
+ h->cerrno = CSOUTSTATE;
+ return -1;
+ }
+ for (i = 0; i<3; i++)
+ {
+ r = connect(h->iofile, (struct sockaddr *) add, SUN_LEN(add));
+ if (r < 0 && yaz_errno() == EAGAIN)
+ {
+#if HAVE_USLEEP
+ usleep(i*10000+1000); /* 1ms, 11ms, 21ms */
+#else
+ sleep(1);
+#endif
+ continue;
+ }
+ else
+ break;
}
- r = connect(h->iofile, (struct sockaddr *) add, SUN_LEN(add));
if (r < 0)
{
- if (yaz_errno() == EINPROGRESS)
- {
- h->event = CS_CONNECT;
- h->state = CS_ST_CONNECTING;
- h->io_pending = CS_WANT_WRITE|CS_WANT_READ;
- return 1;
- }
- h->cerrno = CSYSERR;
- return -1;
+ if (yaz_errno() == EINPROGRESS)
+ {
+ h->event = CS_CONNECT;
+ h->state = CS_ST_CONNECTING;
+ h->io_pending = CS_WANT_WRITE;
+ return 1;
+ }
+ h->cerrno = CSYSERR;
+ return -1;
}
h->event = CS_CONNECT;
h->state = CS_ST_CONNECTING;
TRC(fprintf(stderr, "unix_rcvconnect\n"));
if (h->state == CS_ST_DATAXFER)
- return 0;
+ return 0;
if (h->state != CS_ST_CONNECTING)
{
- h->cerrno = CSOUTSTATE;
- return -1;
+ h->cerrno = CSOUTSTATE;
+ return -1;
}
h->event = CS_DATA;
h->state = CS_ST_DATAXFER;
TRC (fprintf (stderr, "unix_bind\n"));
if(stat(path, &stat_buf) != -1) {
- struct sockaddr_un socket_unix;
- int socket_out = -1;
- if(! S_ISSOCK(stat_buf.st_mode)) {
- h->cerrno = CSYSERR;
- yaz_set_errno(EEXIST); /* Not a socket (File exists) */
- return -1;
- }
- if((socket_out = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
- h->cerrno = CSYSERR;
- return -1;
- }
- socket_unix.sun_family = AF_UNIX;
- strncpy(socket_unix.sun_path, path, sizeof(socket_unix.sun_path));
- if(connect(socket_out, (struct sockaddr *) &socket_unix, SUN_LEN(&socket_unix)) < 0) {
- if(yaz_errno() == ECONNREFUSED) {
- TRC (fprintf (stderr, "Socket exists but nobody is listening\n"));
- } else {
- h->cerrno = CSYSERR;
- return -1;
- }
- } else {
- close(socket_out);
- h->cerrno = CSYSERR;
- yaz_set_errno(EADDRINUSE);
- return -1;
- }
- unlink(path);
+ struct sockaddr_un socket_unix;
+ int socket_out = -1;
+
+ if((stat_buf.st_mode&S_IFMT) != S_IFSOCK) { /* used to be S_ISSOCK */
+ h->cerrno = CSYSERR;
+ yaz_set_errno(EEXIST); /* Not a socket (File exists) */
+ return -1;
+ }
+ if((socket_out = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
+ h->cerrno = CSYSERR;
+ return -1;
+ }
+ socket_unix.sun_family = AF_UNIX;
+ strncpy(socket_unix.sun_path, path, sizeof(socket_unix.sun_path)-1);
+ socket_unix.sun_path[sizeof(socket_unix.sun_path)-1] = 0;
+ if(connect(socket_out, (struct sockaddr *) &socket_unix, SUN_LEN(&socket_unix)) < 0) {
+ if(yaz_errno() == ECONNREFUSED) {
+ TRC (fprintf (stderr, "Socket exists but nobody is listening\n"));
+ } else {
+ h->cerrno = CSYSERR;
+ return -1;
+ }
+ } else {
+ close(socket_out);
+ h->cerrno = CSYSERR;
+ yaz_set_errno(EADDRINUSE);
+ return -1;
+ }
+ unlink(path);
}
if (bind(h->iofile, (struct sockaddr *) addr, SUN_LEN((struct sockaddr_un *)addr)))
{
- h->cerrno = CSYSERR;
- return -1;
+ h->cerrno = CSYSERR;
+ return -1;
+ }
+ if (chown(path, sp->uid, sp->gid))
+ {
+ h->cerrno = CSYSERR;
+ return -1;
+ }
+ if (chmod(path, sp->umask != -1 ? sp->umask : 0666))
+ {
+ h->cerrno = CSYSERR;
+ return -1;
}
- chown(path, sp->uid, sp->gid);
- chmod(path, sp->umask != -1 ? sp->umask : 0666);
- if (mode == CS_SERVER && listen(h->iofile, 3) < 0)
+ if (mode == CS_SERVER && listen(h->iofile, 100) < 0)
{
- h->cerrno = CSYSERR;
- return -1;
+ h->cerrno = CSYSERR;
+ return -1;
}
h->state = CS_ST_IDLE;
h->event = CS_LISTEN;
static int unix_listen(COMSTACK h, char *raddr, int *addrlen,
int (*check_ip)(void *cd, const char *a, int len, int t),
- void *cd)
+ void *cd)
{
struct sockaddr_un addr;
YAZ_SOCKLEN_T len = sizeof(addr);
TRC(fprintf(stderr, "unix_listen pid=%d\n", getpid()));
if (h->state != CS_ST_IDLE)
{
- h->cerrno = CSOUTSTATE;
- return -1;
+ h->cerrno = CSOUTSTATE;
+ return -1;
}
h->newfd = accept(h->iofile, (struct sockaddr*)&addr, &len);
if (h->newfd < 0)
{
- if (
- yaz_errno() == EWOULDBLOCK
+ if (
+ yaz_errno() == EWOULDBLOCK
#ifdef EAGAIN
#if EAGAIN != EWOULDBLOCK
- || yaz_errno() == EAGAIN
+ || yaz_errno() == EAGAIN
#endif
#endif
- )
- h->cerrno = CSNODATA;
- else
- h->cerrno = CSYSERR;
- return -1;
+ )
+ h->cerrno = CSNODATA;
+ else
+ h->cerrno = CSYSERR;
+ return -1;
}
if (addrlen && (size_t) (*addrlen) >= sizeof(struct sockaddr_un))
- memcpy(raddr, &addr, *addrlen = sizeof(struct sockaddr_un));
+ memcpy(raddr, &addr, *addrlen = sizeof(struct sockaddr_un));
else if (addrlen)
- *addrlen = 0;
+ *addrlen = 0;
h->state = CS_ST_INCON;
return 0;
}
TRC(fprintf(stderr, "unix_accept\n"));
if (h->state == CS_ST_INCON)
{
- if (!(cnew = (COMSTACK)xmalloc(sizeof(*cnew))))
- {
- h->cerrno = CSYSERR;
- close(h->newfd);
- h->newfd = -1;
- return 0;
- }
- memcpy(cnew, h, sizeof(*h));
- cnew->iofile = h->newfd;
- cnew->io_pending = 0;
- if (!(state = (unix_state *)
- (cnew->cprivate = xmalloc(sizeof(unix_state)))))
- {
- h->cerrno = CSYSERR;
- if (h->newfd != -1)
- {
- close(h->newfd);
- h->newfd = -1;
- }
- return 0;
- }
- if (!(cnew->blocking&1) &&
+ if (!(cnew = (COMSTACK)xmalloc(sizeof(*cnew))))
+ {
+ h->cerrno = CSYSERR;
+ close(h->newfd);
+ h->newfd = -1;
+ return 0;
+ }
+ memcpy(cnew, h, sizeof(*h));
+ cnew->iofile = h->newfd;
+ cnew->io_pending = 0;
+ if (!(state = (unix_state *)
+ (cnew->cprivate = xmalloc(sizeof(unix_state)))))
+ {
+ h->cerrno = CSYSERR;
+ if (h->newfd != -1)
+ {
+ close(h->newfd);
+ h->newfd = -1;
+ }
+ return 0;
+ }
+ if (!(cnew->flags&CS_FLAGS_BLOCKING) &&
(fcntl(cnew->iofile, F_SETFL, O_NONBLOCK) < 0)
- )
- {
- h->cerrno = CSYSERR;
- if (h->newfd != -1)
- {
- close(h->newfd);
- h->newfd = -1;
- }
- xfree (cnew);
- xfree (state);
- return 0;
- }
- h->newfd = -1;
- state->altbuf = 0;
- state->altsize = state->altlen = 0;
- state->towrite = state->written = -1;
- state->complete = st->complete;
- memcpy(&state->addr, &st->addr, sizeof(state->addr));
- cnew->state = CS_ST_ACCEPT;
- cnew->event = CS_NONE;
- h->state = CS_ST_IDLE;
-
- h = cnew;
+ )
+ {
+ h->cerrno = CSYSERR;
+ if (h->newfd != -1)
+ {
+ close(h->newfd);
+ h->newfd = -1;
+ }
+ xfree (cnew);
+ xfree (state);
+ return 0;
+ }
+ h->newfd = -1;
+ state->altbuf = 0;
+ state->altsize = state->altlen = 0;
+ state->towrite = state->written = -1;
+ state->complete = st->complete;
+ memcpy(&state->addr, &st->addr, sizeof(state->addr));
+ cnew->state = CS_ST_ACCEPT;
+ cnew->event = CS_NONE;
+ h->state = CS_ST_IDLE;
+
+ h = cnew;
}
if (h->state == CS_ST_ACCEPT)
{
}
else
{
- h->cerrno = CSOUTSTATE;
- return 0;
+ h->cerrno = CSOUTSTATE;
+ return 0;
}
h->io_pending = 0;
h->state = CS_ST_DATAXFER;
TRC(fprintf(stderr, "unix_get: bufsize=%d\n", *bufsize));
if (sp->altlen) /* switch buffers */
{
- TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
- (unsigned) sp->altbuf));
- tmpc = *buf;
- tmpi = *bufsize;
- *buf = sp->altbuf;
- *bufsize = sp->altsize;
- hasread = sp->altlen;
- sp->altlen = 0;
- sp->altbuf = tmpc;
- sp->altsize = tmpi;
+ TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
+ (unsigned) sp->altbuf));
+ tmpc = *buf;
+ tmpi = *bufsize;
+ *buf = sp->altbuf;
+ *bufsize = sp->altsize;
+ hasread = sp->altlen;
+ sp->altlen = 0;
+ sp->altbuf = tmpc;
+ sp->altsize = tmpi;
}
h->io_pending = 0;
- while (!(berlen = (*sp->complete)((unsigned char *)*buf, hasread)))
+ while (!(berlen = (*sp->complete)(*buf, hasread)))
{
- if (!*bufsize)
- {
- if (!(*buf = (char *)xmalloc(*bufsize = CS_UNIX_BUFCHUNK)))
- return -1;
- }
- else if (*bufsize - hasread < CS_UNIX_BUFCHUNK)
- if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
- return -1;
- res = recv(h->iofile, *buf + hasread, CS_UNIX_BUFCHUNK, 0);
- TRC(fprintf(stderr, " recv res=%d, hasread=%d\n", res, hasread));
- if (res < 0)
- {
- if (yaz_errno() == EWOULDBLOCK
+ if (!*bufsize)
+ {
+ if (!(*buf = (char *)xmalloc(*bufsize = CS_UNIX_BUFCHUNK)))
+ return -1;
+ }
+ else if (*bufsize - hasread < CS_UNIX_BUFCHUNK)
+ if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
+ return -1;
+ res = recv(h->iofile, *buf + hasread, CS_UNIX_BUFCHUNK, 0);
+ TRC(fprintf(stderr, " recv res=%d, hasread=%d\n", res, hasread));
+ if (res < 0)
+ {
+ if (yaz_errno() == EWOULDBLOCK
#ifdef EAGAIN
#if EAGAIN != EWOULDBLOCK
- || yaz_errno() == EAGAIN
+ || yaz_errno() == EAGAIN
#endif
#endif
- || yaz_errno() == EINPROGRESS
- )
- {
- h->io_pending = CS_WANT_READ;
- break;
- }
- else if (yaz_errno() == 0)
- continue;
- else
- return -1;
- }
- else if (!res)
- return hasread;
- hasread += res;
+ || yaz_errno() == EINPROGRESS
+ )
+ {
+ h->io_pending = CS_WANT_READ;
+ break;
+ }
+ else if (yaz_errno() == 0)
+ continue;
+ else
+ return -1;
+ }
+ else if (!res)
+ return hasread;
+ hasread += res;
}
TRC (fprintf (stderr, " Out of read loop with hasread=%d, berlen=%d\n",
- hasread, berlen));
+ hasread, berlen));
/* move surplus buffer (or everything if we didn't get a BER rec.) */
if (hasread > berlen)
{
- tomove = req = hasread - berlen;
- rest = tomove % CS_UNIX_BUFCHUNK;
- if (rest)
- req += CS_UNIX_BUFCHUNK - rest;
- if (!sp->altbuf)
- {
- if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
- return -1;
- } else if (sp->altsize < req)
- if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
- return -1;
- TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
- (unsigned) sp->altbuf));
- memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
+ tomove = req = hasread - berlen;
+ rest = tomove % CS_UNIX_BUFCHUNK;
+ if (rest)
+ req += CS_UNIX_BUFCHUNK - rest;
+ if (!sp->altbuf)
+ {
+ if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
+ return -1;
+ } else if (sp->altsize < req)
+ if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
+ return -1;
+ TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
+ (unsigned) sp->altbuf));
+ memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
}
if (berlen < CS_UNIX_BUFCHUNK - 1)
- *(*buf + berlen) = '\0';
+ *(*buf + berlen) = '\0';
return berlen ? berlen : 1;
}
h->event = CS_DATA;
if (state->towrite < 0)
{
- state->towrite = size;
- state->written = 0;
+ state->towrite = size;
+ state->written = 0;
}
else if (state->towrite != size)
{
- h->cerrno = CSWRONGBUF;
- return -1;
+ h->cerrno = CSWRONGBUF;
+ return -1;
}
while (state->towrite > state->written)
{
- if ((res =
- send(h->iofile, buf + state->written, size -
- state->written,
+ if ((res =
+ send(h->iofile, buf + state->written, size -
+ state->written,
#ifdef MSG_NOSIGNAL
- MSG_NOSIGNAL
+ MSG_NOSIGNAL
#else
- 0
+ 0
#endif
- )) < 0)
- {
- if (
- yaz_errno() == EWOULDBLOCK
+ )) < 0)
+ {
+ if (
+ yaz_errno() == EWOULDBLOCK
#ifdef EAGAIN
#if EAGAIN != EWOULDBLOCK
- || yaz_errno() == EAGAIN
+ || yaz_errno() == EAGAIN
#endif
#endif
- )
- {
- TRC(fprintf(stderr, " Flow control stop\n"));
- h->io_pending = CS_WANT_WRITE;
- return 1;
- }
- h->cerrno = CSYSERR;
- return -1;
- }
- state->written += res;
- TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
- res, state->written, size));
+ )
+ {
+ TRC(fprintf(stderr, " Flow control stop\n"));
+ h->io_pending = CS_WANT_WRITE;
+ return 1;
+ }
+ h->cerrno = CSYSERR;
+ return -1;
+ }
+ state->written += res;
+ TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
+ res, state->written, size));
}
state->towrite = state->written = -1;
TRC(fprintf(stderr, " Ok\n"));
return 0;
}
-static int unix_close(COMSTACK h)
+static void unix_close(COMSTACK h)
{
unix_state *sp = (struct unix_state *)h->cprivate;
TRC(fprintf(stderr, "unix_close\n"));
if (h->iofile != -1)
{
- close(h->iofile);
+ close(h->iofile);
}
if (sp->altbuf)
- xfree(sp->altbuf);
+ xfree(sp->altbuf);
xfree(sp);
xfree(h);
- return 0;
}
-static char *unix_addrstr(COMSTACK h)
+static const char *unix_addrstr(COMSTACK h)
{
unix_state *sp = (struct unix_state *)h->cprivate;
char *buf = sp->buf;
return buf;
}
-static int unix_set_blocking(COMSTACK p, int blocking)
+static int unix_set_blocking(COMSTACK p, int flags)
{
unsigned long flag;
- if (p->blocking == blocking)
- return 1;
+ if (p->flags == flags)
+ return 1;
flag = fcntl(p->iofile, F_GETFL, 0);
- if(!blocking)
- flag = flag & ~O_NONBLOCK;
+ if (flags & CS_FLAGS_BLOCKING)
+ flag = flag & ~O_NONBLOCK;
else
- flag = flag | O_NONBLOCK;
+ flag = flag | O_NONBLOCK;
if (fcntl(p->iofile, F_SETFL, flag) < 0)
- return 0;
- p->blocking = blocking;
+ return 0;
+ p->flags = flags;
return 1;
}
#endif /* WIN32 */
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+