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.
24 #define _XOPEN_SOURCE /* Need this for IOV_MAX */
26 /* These typedef's are needed for socket.h to be happy. Bleep PROMISES to make
27 * to make this less hackish in the future... HONEST. -GW
29 typedef unsigned char u_char;
30 typedef unsigned short u_short;
31 typedef unsigned int u_int;
32 typedef unsigned long u_long;
34 #include "ircd_osdep.h"
38 #include <sys/types.h>
40 #include <sys/resource.h>
44 #include <netinet/in.h>
47 #include <sys/ioctl.h>
48 #include <sys/socket.h>
53 #define IOV_MAX 16 /* minimum required */
57 #include <sys/syscall.h>
58 #define getrusage(a,b) syscall(SYS_GETRUSAGE, a, b)
62 * This is part of the STATS replies. There is no offical numeric for this
63 * since this isnt an official command, in much the same way as HASH isnt.
64 * It is also possible that some systems wont support this call or have
65 * different field names for "struct rusage".
68 int os_get_rusage(struct Client *cptr, int uptime, EnumFn enumerator)
83 hzz = sysconf(_SC_CLK_TCK);
88 assert(0 != enumerator);
89 if (getrusage(RUSAGE_SELF, &rus) == -1)
92 secs = rus.ru_utime.tv_sec + rus.ru_stime.tv_sec;
96 sprintf(buf, "CPU Secs %ld:%ld User %ld:%ld System %ld:%ld",
98 rus.ru_utime.tv_sec / 60, rus.ru_utime.tv_sec % 60,
99 rus.ru_stime.tv_sec / 60, rus.ru_stime.tv_sec % 60);
100 (*enumerator)(cptr, buf);
102 sprintf(buf, "RSS %ld ShMem %ld Data %ld Stack %ld",
104 rus.ru_ixrss / (uptime * hzz), rus.ru_idrss / (uptime * hzz),
105 rus.ru_isrss / (uptime * hzz));
106 (*enumerator)(cptr, buf);
108 sprintf(buf, "Swaps %ld Reclaims %ld Faults %ld",
109 rus.ru_nswap, rus.ru_minflt, rus.ru_majflt);
110 (*enumerator)(cptr, buf);
112 sprintf(buf, "Block in %ld out %ld", rus.ru_inblock, rus.ru_oublock);
113 (*enumerator)(cptr, buf);
115 sprintf(buf, "Msg Rcv %ld Send %ld", rus.ru_msgrcv, rus.ru_msgsnd);
116 (*enumerator)(cptr, buf);
118 sprintf(buf, "Signals %ld Context Vol. %ld Invol %ld",
119 rus.ru_nsignals, rus.ru_nvcsw, rus.ru_nivcsw);
120 (*enumerator)(cptr, buf);
122 #else /* HAVE_GETRUSAGE */
126 int hzz = 1, ticpermin;
127 int umin, smin, usec, ssec;
129 assert(0 != enumerator);
131 hzz = sysconf(_SC_CLK_TCK);
133 ticpermin = hzz * 60;
135 umin = tmsbuf.tms_utime / ticpermin;
136 usec = (tmsbuf.tms_utime % ticpermin) / (float)hzz;
137 smin = tmsbuf.tms_stime / ticpermin;
138 ssec = (tmsbuf.tms_stime % ticpermin) / (float)hzz;
140 mins = (secs / 60) + umin + smin;
143 if (times(&tmsbuf) == -1)
145 secs = tmsbuf.tms_utime + tmsbuf.tms_stime;
147 sprintf(buf, "CPU Secs %d:%d User %d:%d System %d:%d",
148 mins, secs, umin, usec, smin, ssec);
149 (*enumerator)(cptr, buf);
150 #endif /* HAVE_TIMES */
151 #endif /* HAVE_GETRUSAGE */
155 int os_get_sockerr(int fd)
158 #if defined(SO_ERROR)
159 unsigned int len = sizeof(err);
160 getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &len);
168 * Set the client connection into non-blocking mode. If your
169 * system doesn't support this, you can make this a dummy
170 * function (and get all the old problems that plagued the
171 * blocking version of IRC--not a problem if you are a
172 * lightly loaded node...)
174 int os_set_nonblocking(int fd)
182 * NOTE: consult ALL your relevant manual pages *BEFORE* changing
183 * these ioctl's. There are quite a few variations on them,
184 * as can be seen by the PCS one. They are *NOT* all the same.
185 * Heed this well. - Avalon.
194 /* This portion of code might also apply to NeXT. -LynX */
197 if (ioctl(fd, FIONBIO, &res) == -1)
200 if ((res = fcntl(fd, F_GETFL, 0)) == -1)
202 else if (fcntl(fd, F_SETFL, res | nonb) == -1)
212 int os_set_reuseaddr(int fd)
214 unsigned int opt = 1;
215 return (0 == setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
216 (const char*) &opt, sizeof(opt)));
219 int os_set_sockbufs(int fd, unsigned int size)
221 unsigned int opt = size;
222 return (0 == setsockopt(fd, SOL_SOCKET, SO_RCVBUF,
223 (const char*) &opt, sizeof(opt)) &&
224 0 == setsockopt(fd, SOL_SOCKET, SO_SNDBUF,
225 (const char*) &opt, sizeof(opt)));
228 int os_set_tos(int fd,int tos)
230 unsigned int opt = tos;
231 return (0 == setsockopt(fd, IPPROTO_IP, IP_TOS, &opt, sizeof(opt)));
234 int os_disable_options(int fd)
236 #if defined(IP_OPTIONS) && defined(IPPROTO_IP)
237 return (0 == setsockopt(fd, IPPROTO_IP, IP_OPTIONS, NULL, 0));
244 * Try and find the correct name to use with getrlimit() for setting the max.
245 * number of files allowed to be open by this process.
248 #define RLIMIT_FD_MAX RLIMIT_FDMAX
251 #define RLIMIT_FD_MAX RLIMIT_NOFILE
253 #ifdef RLIMIT_OPEN_MAX
254 #define RLIMIT_FD_MAX RLIMIT_OPEN_MAX
261 int os_set_fdlimit(unsigned int max_descriptors)
263 #if defined(HAVE_SETRLIMIT) && defined(RLIMIT_FD_MAX)
266 if (!getrlimit(RLIMIT_FD_MAX, &limit)) {
267 if (limit.rlim_max < MAXCONNECTIONS)
268 return limit.rlim_max;
269 limit.rlim_cur = limit.rlim_max; /* make soft limit the max */
270 return setrlimit(RLIMIT_FD_MAX, &limit);
272 #endif /* defined(HAVE_SETRLIMIT) && defined(RLIMIT_FD_MAX) */
276 IOResult os_recv_nonb(int fd, char* buf, unsigned int length,
277 unsigned int* count_out)
281 assert(0 != count_out);
285 if (0 < (res = recv(fd, buf, length, 0))) {
286 *count_out = (unsigned) res;
290 if (EWOULDBLOCK == errno || EAGAIN == errno)
296 * 0 == client closed the connection
302 IOResult os_recvfrom_nonb(int fd, char* buf, unsigned int length,
303 unsigned int* length_out, struct sockaddr_in* sin_out)
306 unsigned int len = sizeof(struct sockaddr_in);
308 assert(0 != length_out);
309 assert(0 != sin_out);
313 res = recvfrom(fd, buf, length, 0, (struct sockaddr*) sin_out, &len);
315 if (EWOULDBLOCK == errno || ENOMEM == errno)
323 IOResult os_send_nonb(int fd, const char* buf, unsigned int length,
324 unsigned int* count_out)
328 assert(0 != count_out);
332 if (-1 < (res = send(fd, buf, length, 0))) {
333 *count_out = (unsigned) res;
336 else if (EWOULDBLOCK == errno || EAGAIN == errno ||
337 ENOMEM == errno || ENOBUFS == errno)
342 IOResult os_sendv_nonb(int fd, struct MsgQ* buf, unsigned int* count_in,
343 unsigned int* count_out)
347 struct iovec iov[IOV_MAX];
350 assert(0 != count_in);
351 assert(0 != count_out);
357 count = msgq_mapiov(buf, iov, IOV_MAX, count_in);
359 if (-1 < (res = writev(fd, iov, count))) {
360 *count_out = (unsigned) res;
363 else if (EWOULDBLOCK == errno || EAGAIN == errno ||
364 ENOMEM == errno || ENOBUFS == errno)
370 IOResult os_connect_nonb(int fd, const struct sockaddr_in* sin)
372 if (connect(fd, (struct sockaddr*) sin, sizeof(struct sockaddr_in)))
373 return (errno == EINPROGRESS) ? IO_BLOCKED : IO_FAILURE;
377 int os_get_sockname(int fd, struct sockaddr_in* sin_out)
379 unsigned int len = sizeof(struct sockaddr_in);
380 assert(0 != sin_out);
381 return (0 == getsockname(fd, (struct sockaddr*) sin_out, &len));
384 int os_get_peername(int fd, struct sockaddr_in* sin_out)
386 unsigned int len = sizeof(struct sockaddr_in);
387 assert(0 != sin_out);
388 return (0 == getpeername(fd, (struct sockaddr*) sin_out, &len));
391 int os_set_listen(int fd, int backlog)
393 return (0 == listen(fd, backlog));