int createq(queue_t *q, unsigned packets)
{
if (0 == (q->packets = calloc(packets, sizeof *q->packets))) {
seterror(err_NM);
return 0;
}
if (!createlock(&q->lock)) {
return 0;
}
q->n = packets;
q->s = 0;
q->packetlist = 0;
q->len = 0;
q->bytes_sent = 0;
q->buffertime = 0;
q->deadline = 0;
return 1;
}
int
deliver_mbox_deliver(struct deliver_ctx *dctx, struct actitem *ti)
{
struct account *a = dctx->account;
struct mail *m = dctx->mail;
struct deliver_mbox_data *data = ti->data;
char *path, *ptr, *lptr, *from = NULL;
const char *msg;
size_t len, llen;
int fd, saved_errno;
FILE *f;
gzFile gzf;
long long used;
sigset_t set, oset;
struct stat sb;
f = gzf = NULL;
fd = -1;
path = replacepath(&data->path, m->tags, m, &m->rml, dctx->udata->home);
if (path == NULL || *path == '\0') {
log_warnx("%s: empty path", a->name);
goto error;
}
if (data->compress) {
len = strlen(path);
if (len < 3 || strcmp(path + len - 3, ".gz") != 0) {
path = xrealloc(path, 1, len + 4);
strlcat(path, ".gz", len + 4);
}
}
log_debug2("%s: saving to mbox %s", a->name, path);
/* Save the mbox path. */
add_tag(&m->tags, "mbox_file", "%s", path);
/* Check permissions and ownership. */
if (stat(path, &sb) != 0) {
if (conf.no_create || errno != ENOENT)
goto error_log;
log_debug2("%s: creating %s", a->name, xdirname(path));
if (xmkpath(xdirname(path), -1, conf.file_group, DIRMODE) != 0)
goto error_log;
} else {
if ((msg = checkmode(&sb, UMASK(FILEMODE))) != NULL)
log_warnx("%s: %s: %s", a->name, path, msg);
if ((msg = checkowner(&sb, -1)) != NULL)
log_warnx("%s: %s: %s", a->name, path, msg);
if ((msg = checkgroup(&sb, conf.file_group)) != NULL)
log_warnx("%s: %s: %s", a->name, path, msg);
}
/* Create or open the mbox. */
used = 0;
do {
if (conf.no_create)
fd = openlock(path, O_WRONLY|O_APPEND, conf.lock_types);
else {
fd = createlock(path, O_WRONLY|O_APPEND,
-1, conf.file_group, FILEMODE, conf.lock_types);
}
if (fd == -1 && errno == EEXIST)
fd = openlock(path, O_WRONLY|O_APPEND, conf.lock_types);
if (fd == -1) {
if (errno == EAGAIN) {
if (locksleep(a->name, path, &used) != 0)
goto error;
continue;
}
goto error_log;
}
} while (fd < 0);
/* Open gzFile or FILE * for writing. */
if (data->compress) {
if ((gzf = gzdopen(fd, "a")) == NULL) {
errno = ENOMEM;
goto error_log;
}
} else {
if ((f = fdopen(fd, "a")) == NULL)
goto error_log;
}
/*
* mboxes are a pain: if we are interrupted after this we risk
* having written a partial mail. So, block SIGTERM until we're
* done.
*/
sigemptyset(&set);
sigaddset(&set, SIGTERM);
if (sigprocmask(SIG_BLOCK, &set, &oset) < 0)
fatal("sigprocmask failed");
/* Write the from line. */
from = make_from(m, dctx->udata->name);
if (deliver_mbox_write(f, gzf, from, strlen(from)) < 0) {
xfree(from);
goto error_unblock;
}
if (deliver_mbox_write(f, gzf, "\n", 1) < 0) {
xfree(from);
goto error_unblock;
}
log_debug3("%s: using from line: %s", a->name, from);
xfree(from);
/* Write the mail, escaping from lines. */
line_init(m, &ptr, &len);
while (ptr != NULL) {
if (ptr != m->data) {
/* Skip leading >s. */
lptr = ptr;
llen = len;
while (*lptr == '>' && llen > 0) {
lptr++;
llen--;
}
if (llen >= 5 && strncmp(lptr, "From ", 5) == 0) {
log_debug2("%s: quoting from line: %.*s",
a->name, (int) len - 1, ptr);
if (deliver_mbox_write(f, gzf, ">", 1) < 0)
goto error_unblock;
}
}
if (deliver_mbox_write(f, gzf, ptr, len) < 0)
goto error_unblock;
line_next(m, &ptr, &len);
}
/* Append newlines. */
if (m->data[m->size - 1] == '\n') {
if (deliver_mbox_write(f, gzf, "\n", 1) < 0)
goto error_unblock;
} else {
if (deliver_mbox_write(f, gzf, "\n\n", 2) < 0)
goto error_unblock;
}
/* Flush buffers and sync. */
if (gzf == NULL) {
if (fflush(f) != 0)
goto error_unblock;
} else {
if (gzflush(gzf, Z_FINISH) != Z_OK) {
errno = EIO;
goto error_unblock;
}
}
if (fsync(fd) != 0)
goto error_unblock;
if (sigprocmask(SIG_SETMASK, &oset, NULL) < 0)
fatal("sigprocmask failed");
if (gzf != NULL)
gzclose(gzf);
if (f != NULL)
fclose(f);
closelock(fd, path, conf.lock_types);
xfree(path);
return (DELIVER_SUCCESS);
error_unblock:
saved_errno = errno;
if (sigprocmask(SIG_SETMASK, &oset, NULL) < 0)
fatal("sigprocmask failed");
errno = saved_errno;
error_log:
log_warn("%s: %s", a->name, path);
error:
if (gzf != NULL)
gzclose(gzf);
if (f != NULL)
fclose(f);
if (fd != -1)
closelock(fd, path, conf.lock_types);
if (path != NULL)
xfree(path);
return (DELIVER_FAILURE);
}
int
chanopen(Chan *c, long nel, long elsz)
{
Lock *l, *cl;
Cond *da, *sa, *sc;
uchar *buf;
if(c == nil)
return -1;
if(c->status == Open){
errorf("chanopen -- called on open channel\n");
return -1;
}
l = createlock();
if(l == nil){
errorf("chanopen -- failed to alloc lock\n");
return -1;
}
da = createcond();
if(da == nil){
errorf("chanopen -- createcond failed\n");
freelock(l);
return -1;
}
sa = createcond();
if(sa == nil){
errorf("chanopen -- createcond failed\n");
freecond(da);
freelock(l);
return -1;
}
sc = createcond();
if(sc == nil){
errorf("chanopen -- createcond failed\n");
freecond(sa);
freecond(da);
freelock(l);
return -1;
}
if(nel > 0)
buf = calloc(nel, elsz);
else
buf = calloc(1, elsz);
if(buf == nil){
errorf("chanopen -- failed to alloc channel buffer\n");
freecond(sc);
freecond(sa);
freecond(da);
freelock(l);
return -1;
}
c->l = l;
c->da = da;
c->sa = sa;
c->sc = sc;
c->b = buf;
c->elsz = elsz;
c->sz = nel;
c->s = 0;
c->n = 0;
c->recvbuf = nil;
c->status = Open;
return 0;
}
