int silc_fd_stream_read(SilcStream stream, unsigned char *buf,
SilcUInt32 buf_len)
{
SilcFDStream fd_stream = stream;
int len = 0;
if (!fd_stream->notifier)
return -2;
SILC_LOG_DEBUG(("Reading data from fd %d", fd_stream->fd1));
len = silc_file_read(fd_stream->fd1, buf, buf_len);
if (len < 0) {
if (errno == EAGAIN || errno == EINTR) {
SILC_LOG_DEBUG(("Could not read immediately, will do it later"));
silc_schedule_set_listen_fd(fd_stream->schedule, fd_stream->fd1,
SILC_TASK_READ, FALSE);
return -1;
}
SILC_LOG_DEBUG(("Cannot read from fd: %d:%s",
fd_stream->fd1, strerror(errno)));
silc_schedule_unset_listen_fd(fd_stream->schedule, fd_stream->fd1);
fd_stream->error = errno;
return -2;
}
SILC_LOG_DEBUG(("Read %d bytes", len));
if (!len)
silc_schedule_unset_listen_fd(fd_stream->schedule, fd_stream->fd1);
return len;
}
char *silc_file_readfile(const char *filename, SilcUInt32 *return_len,
SilcStack stack)
{
int fd;
unsigned char *buffer;
int filelen;
fd = silc_file_open(filename, O_RDONLY);
if (fd < 0) {
if (silc_errno == SILC_ERR_NO_SUCH_FILE)
return NULL;
SILC_LOG_ERROR(("Cannot open file %s: %s", filename,
silc_errno_string(silc_errno)));
return NULL;
}
filelen = lseek(fd, (off_t)0L, SEEK_END);
if (filelen < 0) {
silc_set_errno_posix(errno);
silc_file_close(fd);
return NULL;
}
if (lseek(fd, (off_t)0L, SEEK_SET) < 0) {
silc_set_errno_posix(errno);
silc_file_close(fd);
return NULL;
}
buffer = silc_calloc(filelen + 1, sizeof(*buffer));
if (!buffer) {
silc_set_errno_posix(errno);
silc_file_close(fd);
return NULL;
}
if ((silc_file_read(fd, buffer, filelen)) == -1) {
memset(buffer, 0, sizeof(buffer));
silc_file_close(fd);
SILC_LOG_ERROR(("Cannot read from file %s: %s", filename,
silc_errno_string(silc_errno)));
return NULL;
}
silc_file_close(fd);
buffer[filelen] = EOF;
if (return_len)
*return_len = filelen;
return (char *)buffer;
}
char *silc_file_readfile(const char *filename, SilcUInt32 *return_len)
{
int fd;
char *buffer;
int filelen;
fd = silc_file_open(filename, O_RDONLY);
if (fd < 0) {
if (errno == ENOENT)
return NULL;
SILC_LOG_ERROR(("Cannot open file %s: %s", filename, strerror(errno)));
return NULL;
}
filelen = lseek(fd, (off_t)0L, SEEK_END);
if (filelen < 0) {
silc_file_close(fd);
return NULL;
}
if (lseek(fd, (off_t)0L, SEEK_SET) < 0) {
silc_file_close(fd);
return NULL;
}
if (filelen < 0) {
SILC_LOG_ERROR(("Cannot open file %s: %s", filename, strerror(errno)));
silc_file_close(fd);
return NULL;
}
buffer = silc_calloc(filelen + 1, sizeof(char));
if ((silc_file_read(fd, buffer, filelen)) == -1) {
memset(buffer, 0, sizeof(buffer));
silc_file_close(fd);
SILC_LOG_ERROR(("Cannot read from file %s: %s", filename,
strerror(errno)));
return NULL;
}
silc_file_close(fd);
buffer[filelen] = EOF;
if (return_len)
*return_len = filelen;
return buffer;
}
