1/* 2 * This program is free software; you can redistribute it and/or 3 * modify it under the terms of the GNU General Public License as 4 * published by the Free Software Foundation; either version 2 of 5 * the License, or (at your option) any later version. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, write to the Free Software 14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 15 * MA 02111-1307 USA 16 */ 17#ifndef VSF_SYSDEPUTIL_H 18#define VSF_SYSDEPUTIL_H 19 20#ifndef VSF_FILESIZE_H 21#include "filesize.h" 22#endif 23 24/* VSF_SYSDEPUTIL_H: 25 * Support for highly system dependent features, and querying for support 26 * or lack thereof 27 * TODO: document functions! 28 */ 29 30struct mystr; 31 32/* Authentication of local users */ 33/* Return 0 for fail, 1 for success */ 34int vsf_sysdep_check_auth(const struct mystr* p_user, 35 const struct mystr* p_pass, 36 const struct mystr* p_remote_host); 37 38/* Support for fine grained privilege (capabilities) */ 39int vsf_sysdep_has_capabilities(void); 40int vsf_sysdep_has_capabilities_as_non_root(void); 41void vsf_sysdep_keep_capabilities(void); 42enum ESysdepCapabilities 43{ 44 kCapabilityCAP_CHOWN = 1, 45 kCapabilityCAP_NET_BIND_SERVICE = 2 46 /* NOTE - next one will be 4, this is a bitfield */ 47}; 48void vsf_sysdep_adopt_capabilities(unsigned int caps); 49 50/* Support for sendfile(), Linux-like interface. Collapses to a read/write 51 * loop under the covers if the target system lacks support. 52 */ 53int vsf_sysutil_sendfile(const int out_fd, const int in_fd, 54 filesize_t* p_offset, filesize_t num_send, 55 unsigned int max_chunk); 56 57/* Support for changing the process name as reported by the operating system. 58 * A useful status monitor. NOTE - we don't guarantee that this call will 59 * have any effect. 60 */ 61void vsf_sysutil_setproctitle_init(int argc, const char* argv[]); 62void vsf_sysutil_setproctitle(const char* p_text); 63void vsf_sysutil_setproctitle_str(const struct mystr* p_str); 64void vsf_sysutil_set_proctitle_prefix(const struct mystr* p_str); 65 66/* For now, maps read/write private pages. API to be extended.. */ 67void vsf_sysutil_map_anon_pages_init(void); 68void* vsf_sysutil_map_anon_pages(unsigned int length); 69 70/* File descriptor passing/receiving */ 71void vsf_sysutil_send_fd(int sock_fd, int send_fd); 72int vsf_sysutil_recv_fd(int sock_fd); 73 74#endif /* VSF_SYSDEPUTIL_H */ 75 76