static int generic_server(int sock, struct sockaddr *addr, size_t alen)
{
int ret;
ret = bind(sock, addr, alen);
if ( ret < 0 )
return prelude_error_verbose(prelude_error_code_from_errno(errno),
"could not bind socket: %s", strerror(errno));
ret = listen(sock, 10);
if ( ret < 0 )
return prelude_error_verbose(PRELUDE_ERROR_GENERIC, "listen error: %s", strerror(errno));
return 0;
}
int _prelude_load_file(const char *filename, unsigned char **fdata, size_t *outsize)
{
int ret, fd;
struct stat st;
unsigned char *dataptr;
fd = open(filename, O_RDONLY);
if ( fd < 0 )
return prelude_error_from_errno(errno);
ret = fstat(fd, &st);
if ( ret < 0 ) {
close(fd);
return prelude_error_from_errno(errno);
}
if ( st.st_size == 0 ) {
close(fd);
return prelude_error_verbose(prelude_error_code_from_errno(EINVAL), "could not load '%s': empty file", filename);
}
*outsize = st.st_size;
#if !((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__)
dataptr = *fdata = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
if ( dataptr == MAP_FAILED ) {
close(fd);
return prelude_error_from_errno(errno);
}
#else
dataptr = *fdata = malloc(st.st_size);
if ( ! dataptr ) {
close(fd);
return prelude_error_from_errno(errno);
}
_setmode(fd, O_BINARY);
do {
ssize_t len;
len = read(fd, dataptr, st.st_size);
if ( len < 0 ) {
if ( errno == EINTR )
continue;
close(fd);
free(*fdata);
return prelude_error_from_errno(errno);
}
dataptr += len;
st.st_size -= len;
} while ( st.st_size > 0 );
#endif
close(fd);
return 0;
}
