2 * IRC - Internet Relay Chat, ircd/os_openbsd.c
3 * Copyright (C) 2001 Joseph Bongaarts
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 1, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #define _XOPEN_SOURCE /* Need this for IOV_MAX */
24 /* These typedef's are needed for socket.h to be happy. Bleep PROMISES to make
25 * to make this less hackish in the future... HONEST. -GW
27 typedef unsigned char u_char;
28 typedef unsigned short u_short;
29 typedef unsigned int u_int;
30 typedef unsigned long u_long;
32 #include "ircd_osdep.h"
37 #include <sys/types.h>
39 #include <sys/resource.h>
43 #include <netinet/in.h>
46 #include <sys/ioctl.h>
47 #include <sys/socket.h>
52 #define IOV_MAX 16 /* minimum required */
56 #include <sys/syscall.h>
57 #define getrusage(a,b) syscall(SYS_GETRUSAGE, a, b)
61 * This is part of the STATS replies. There is no offical numeric for this
62 * since this isnt an official command, in much the same way as HASH isnt.
63 * It is also possible that some systems wont support this call or have
64 * different field names for "struct rusage".
67 int os_get_rusage(struct Client *cptr, int uptime, EnumFn enumerator)
82 hzz = sysconf(_SC_CLK_TCK);
87 assert(0 != enumerator);
88 if (getrusage(RUSAGE_SELF, &rus) == -1)
91 secs = rus.ru_utime.tv_sec + rus.ru_stime.tv_sec;
95 sprintf(buf, "CPU Secs %ld:%ld User %ld:%ld System %ld:%ld",
97 rus.ru_utime.tv_sec / 60, rus.ru_utime.tv_sec % 60,
98 rus.ru_stime.tv_sec / 60, rus.ru_stime.tv_sec % 60);
99 (*enumerator)(cptr, buf);
101 sprintf(buf, "RSS %ld ShMem %ld Data %ld Stack %ld",
103 rus.ru_ixrss / (uptime * hzz), rus.ru_idrss / (uptime * hzz),
104 rus.ru_isrss / (uptime * hzz));
105 (*enumerator)(cptr, buf);
107 sprintf(buf, "Swaps %ld Reclaims %ld Faults %ld",
108 rus.ru_nswap, rus.ru_minflt, rus.ru_majflt);
109 (*enumerator)(cptr, buf);
111 sprintf(buf, "Block in %ld out %ld", rus.ru_inblock, rus.ru_oublock);
112 (*enumerator)(cptr, buf);
114 sprintf(buf, "Msg Rcv %ld Send %ld", rus.ru_msgrcv, rus.ru_msgsnd);
115 (*enumerator)(cptr, buf);
117 sprintf(buf, "Signals %ld Context Vol. %ld Invol %ld",
118 rus.ru_nsignals, rus.ru_nvcsw, rus.ru_nivcsw);
119 (*enumerator)(cptr, buf);
121 #else /* HAVE_GETRUSAGE */
125 int hzz = 1, ticpermin;
126 int umin, smin, usec, ssec;
128 assert(0 != enumerator);
130 hzz = sysconf(_SC_CLK_TCK);
132 ticpermin = hzz * 60;
134 umin = tmsbuf.tms_utime / ticpermin;
135 usec = (tmsbuf.tms_utime % ticpermin) / (float)hzz;
136 smin = tmsbuf.tms_stime / ticpermin;
137 ssec = (tmsbuf.tms_stime % ticpermin) / (float)hzz;
139 mins = (secs / 60) + umin + smin;
142 if (times(&tmsbuf) == -1)
144 secs = tmsbuf.tms_utime + tmsbuf.tms_stime;
146 sprintf(buf, "CPU Secs %d:%d User %d:%d System %d:%d",
147 mins, secs, umin, usec, smin, ssec);
148 (*enumerator)(cptr, buf);
149 #endif /* HAVE_TIMES */
150 #endif /* HAVE_GETRUSAGE */
154 int os_get_sockerr(int fd)
157 #if defined(SO_ERROR)
158 unsigned int len = sizeof(err);
159 getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &len);
167 * Set the client connection into non-blocking mode. If your
168 * system doesn't support this, you can make this a dummy
169 * function (and get all the old problems that plagued the
170 * blocking version of IRC--not a problem if you are a
171 * lightly loaded node...)
173 int os_set_nonblocking(int fd)
181 * NOTE: consult ALL your relevant manual pages *BEFORE* changing
182 * these ioctl's. There are quite a few variations on them,
183 * as can be seen by the PCS one. They are *NOT* all the same.
184 * Heed this well. - Avalon.
193 /* This portion of code might also apply to NeXT. -LynX */
196 if (ioctl(fd, FIONBIO, &res) == -1)
199 if ((res = fcntl(fd, F_GETFL, 0)) == -1)
201 else if (fcntl(fd, F_SETFL, res | nonb) == -1)
211 int os_set_reuseaddr(int fd)
213 unsigned int opt = 1;
214 return (0 == setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
215 (const char*) &opt, sizeof(opt)));
218 int os_set_sockbufs(int fd, unsigned int size)
220 unsigned int opt = size;
221 return (0 == setsockopt(fd, SOL_SOCKET, SO_RCVBUF,
222 (const char*) &opt, sizeof(opt)) &&
223 0 == setsockopt(fd, SOL_SOCKET, SO_SNDBUF,
224 (const char*) &opt, sizeof(opt)));
227 int os_set_tos(int fd,int tos)
229 unsigned int opt = tos;
230 return (0 == setsockopt(fd, IPPROTO_IP, IP_TOS, &opt, sizeof(opt)));
233 int os_disable_options(int fd)
235 #if defined(IP_OPTIONS) && defined(IPPROTO_IP)
236 return (0 == setsockopt(fd, IPPROTO_IP, IP_OPTIONS, NULL, 0));
243 * Try and find the correct name to use with getrlimit() for setting the max.
244 * number of files allowed to be open by this process.
247 #define RLIMIT_FD_MAX RLIMIT_FDMAX
250 #define RLIMIT_FD_MAX RLIMIT_NOFILE
252 #ifdef RLIMIT_OPEN_MAX
253 #define RLIMIT_FD_MAX RLIMIT_OPEN_MAX
260 int os_set_fdlimit(unsigned int max_descriptors)
262 #if defined(HAVE_SETRLIMIT) && defined(RLIMIT_FD_MAX)
265 if (!getrlimit(RLIMIT_FD_MAX, &limit)) {
266 if (limit.rlim_max < MAXCONNECTIONS)
267 return limit.rlim_max;
268 limit.rlim_cur = limit.rlim_max; /* make soft limit the max */
269 return setrlimit(RLIMIT_FD_MAX, &limit);
271 #endif /* defined(HAVE_SETRLIMIT) && defined(RLIMIT_FD_MAX) */
275 IOResult os_recv_nonb(int fd, char* buf, unsigned int length,
276 unsigned int* count_out)
280 assert(0 != count_out);
284 if (0 < (res = recv(fd, buf, length, 0))) {
285 *count_out = (unsigned) res;
289 if (EWOULDBLOCK == errno || EAGAIN == errno)
295 * 0 == client closed the connection
301 IOResult os_recvfrom_nonb(int fd, char* buf, unsigned int length,
302 unsigned int* length_out, struct sockaddr_in* sin_out)
305 unsigned int len = sizeof(struct sockaddr_in);
307 assert(0 != length_out);
308 assert(0 != sin_out);
312 res = recvfrom(fd, buf, length, 0, (struct sockaddr*) sin_out, &len);
314 if (EWOULDBLOCK == errno || ENOMEM == errno)
322 IOResult os_send_nonb(int fd, const char* buf, unsigned int length,
323 unsigned int* count_out)
327 assert(0 != count_out);
331 if (-1 < (res = send(fd, buf, length, 0))) {
332 *count_out = (unsigned) res;
335 else if (EWOULDBLOCK == errno || EAGAIN == errno ||
336 ENOMEM == errno || ENOBUFS == errno)
341 IOResult os_sendv_nonb(int fd, struct MsgQ* buf, unsigned int* count_in,
342 unsigned int* count_out)
346 struct iovec iov[IOV_MAX];
349 assert(0 != count_in);
350 assert(0 != count_out);
356 count = msgq_mapiov(buf, iov, IOV_MAX, count_in);
358 if (-1 < (res = writev(fd, iov, count))) {
359 *count_out = (unsigned) res;
362 else if (EWOULDBLOCK == errno || EAGAIN == errno ||
363 ENOMEM == errno || ENOBUFS == errno)
369 int os_connect_nonb(int fd, const struct sockaddr_in* sin)
371 if (connect(fd, (struct sockaddr*) sin, sizeof(struct sockaddr_in))) {
372 if (errno != EINPROGRESS)
378 int os_get_sockname(int fd, struct sockaddr_in* sin_out)
380 unsigned int len = sizeof(struct sockaddr_in);
381 assert(0 != sin_out);
382 return (0 == getsockname(fd, (struct sockaddr*) sin_out, &len));
385 int os_get_peername(int fd, struct sockaddr_in* sin_out)
387 unsigned int len = sizeof(struct sockaddr_in);
388 assert(0 != sin_out);
389 return (0 == getpeername(fd, (struct sockaddr*) sin_out, &len));
392 int os_set_listen(int fd, int backlog)
394 return (0 == listen(fd, backlog));