2 * IRC - Internet Relay Chat, ircd/os_openbsd.c
3 * Copyright (C) 1999 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 #include "ircd_osdep.h"
27 #include <sys/types.h>
29 #include <sys/resource.h>
33 #include <netinet/in.h>
36 #include <sys/ioctl.h>
37 #include <sys/socket.h>
42 #define IOV_MAX 16 /* minimum required */
46 #include <sys/syscall.h>
47 #define getrusage(a,b) syscall(SYS_GETRUSAGE, a, b)
51 * This is part of the STATS replies. There is no offical numeric for this
52 * since this isnt an official command, in much the same way as HASH isnt.
53 * It is also possible that some systems wont support this call or have
54 * different field names for "struct rusage".
57 int os_get_rusage(struct Client *cptr, int uptime, EnumFn enumerator)
72 hzz = sysconf(_SC_CLK_TCK);
77 assert(0 != enumerator);
78 if (getrusage(RUSAGE_SELF, &rus) == -1)
81 secs = rus.ru_utime.tv_sec + rus.ru_stime.tv_sec;
85 sprintf(buf, "CPU Secs %ld:%ld User %ld:%ld System %ld:%ld",
87 rus.ru_utime.tv_sec / 60, rus.ru_utime.tv_sec % 60,
88 rus.ru_stime.tv_sec / 60, rus.ru_stime.tv_sec % 60);
89 (*enumerator)(cptr, buf);
91 sprintf(buf, "RSS %ld ShMem %ld Data %ld Stack %ld",
93 rus.ru_ixrss / (uptime * hzz), rus.ru_idrss / (uptime * hzz),
94 rus.ru_isrss / (uptime * hzz));
95 (*enumerator)(cptr, buf);
97 sprintf(buf, "Swaps %ld Reclaims %ld Faults %ld",
98 rus.ru_nswap, rus.ru_minflt, rus.ru_majflt);
99 (*enumerator)(cptr, buf);
101 sprintf(buf, "Block in %ld out %ld", rus.ru_inblock, rus.ru_oublock);
102 (*enumerator)(cptr, buf);
104 sprintf(buf, "Msg Rcv %ld Send %ld", rus.ru_msgrcv, rus.ru_msgsnd);
105 (*enumerator)(cptr, buf);
107 sprintf(buf, "Signals %ld Context Vol. %ld Invol %ld",
108 rus.ru_nsignals, rus.ru_nvcsw, rus.ru_nivcsw);
109 (*enumerator)(cptr, buf);
111 #else /* HAVE_GETRUSAGE */
115 int hzz = 1, ticpermin;
116 int umin, smin, usec, ssec;
118 assert(0 != enumerator);
120 hzz = sysconf(_SC_CLK_TCK);
122 ticpermin = hzz * 60;
124 umin = tmsbuf.tms_utime / ticpermin;
125 usec = (tmsbuf.tms_utime % ticpermin) / (float)hzz;
126 smin = tmsbuf.tms_stime / ticpermin;
127 ssec = (tmsbuf.tms_stime % ticpermin) / (float)hzz;
129 mins = (secs / 60) + umin + smin;
132 if (times(&tmsbuf) == -1)
134 secs = tmsbuf.tms_utime + tmsbuf.tms_stime;
136 sprintf(buf, "CPU Secs %d:%d User %d:%d System %d:%d",
137 mins, secs, umin, usec, smin, ssec);
138 (*enumerator)(cptr, buf);
139 #endif /* HAVE_TIMES */
140 #endif /* HAVE_GETRUSAGE */
144 int os_get_sockerr(int fd)
147 #if defined(SO_ERROR)
148 unsigned int len = sizeof(err);
149 getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &len);
157 * Set the client connection into non-blocking mode. If your
158 * system doesn't support this, you can make this a dummy
159 * function (and get all the old problems that plagued the
160 * blocking version of IRC--not a problem if you are a
161 * lightly loaded node...)
163 int os_set_nonblocking(int fd)
171 * NOTE: consult ALL your relevant manual pages *BEFORE* changing
172 * these ioctl's. There are quite a few variations on them,
173 * as can be seen by the PCS one. They are *NOT* all the same.
174 * Heed this well. - Avalon.
183 /* This portion of code might also apply to NeXT. -LynX */
186 if (ioctl(fd, FIONBIO, &res) == -1)
189 if ((res = fcntl(fd, F_GETFL, 0)) == -1)
191 else if (fcntl(fd, F_SETFL, res | nonb) == -1)
201 int os_set_reuseaddr(int fd)
203 unsigned int opt = 1;
204 return (0 == setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
205 (const char*) &opt, sizeof(opt)));
208 int os_set_sockbufs(int fd, unsigned int size)
210 unsigned int opt = size;
211 return (0 == setsockopt(fd, SOL_SOCKET, SO_RCVBUF,
212 (const char*) &opt, sizeof(opt)) &&
213 0 == setsockopt(fd, SOL_SOCKET, SO_SNDBUF,
214 (const char*) &opt, sizeof(opt)));
217 int os_set_tos(int fd,int tos)
219 unsigned int opt = tos;
220 return (0 == setsockopt(fd, IPPROTO_IP, IP_TOS, &opt, sizeof(opt)));
223 int os_disable_options(int fd)
225 #if defined(IP_OPTIONS) && defined(IPPROTO_IP)
226 return (0 == setsockopt(fd, IPPROTO_IP, IP_OPTIONS, NULL, 0));
233 * Try and find the correct name to use with getrlimit() for setting the max.
234 * number of files allowed to be open by this process.
237 #define RLIMIT_FD_MAX RLIMIT_FDMAX
240 #define RLIMIT_FD_MAX RLIMIT_NOFILE
242 #ifdef RLIMIT_OPEN_MAX
243 #define RLIMIT_FD_MAX RLIMIT_OPEN_MAX
250 int os_set_fdlimit(unsigned int max_descriptors)
252 #if defined(HAVE_SETRLIMIT) && defined(RLIMIT_FD_MAX)
255 if (!getrlimit(RLIMIT_FD_MAX, &limit)) {
256 if (limit.rlim_max < MAXCONNECTIONS)
257 return limit.rlim_max;
258 limit.rlim_cur = limit.rlim_max; /* make soft limit the max */
259 return setrlimit(RLIMIT_FD_MAX, &limit);
261 #endif /* defined(HAVE_SETRLIMIT) && defined(RLIMIT_FD_MAX) */
265 IOResult os_recv_nonb(int fd, char* buf, unsigned int length,
266 unsigned int* count_out)
270 assert(0 != count_out);
274 if (0 < (res = recv(fd, buf, length, 0))) {
275 *count_out = (unsigned) res;
279 if (EWOULDBLOCK == errno || EAGAIN == errno)
285 * 0 == client closed the connection
291 IOResult os_recvfrom_nonb(int fd, char* buf, unsigned int length,
292 unsigned int* length_out, struct sockaddr_in* sin_out)
295 unsigned int len = sizeof(struct sockaddr_in);
297 assert(0 != length_out);
298 assert(0 != sin_out);
302 res = recvfrom(fd, buf, length, 0, (struct sockaddr*) sin_out, &len);
304 if (EWOULDBLOCK == errno || ENOMEM == errno)
312 IOResult os_send_nonb(int fd, const char* buf, unsigned int length,
313 unsigned int* count_out)
317 assert(0 != count_out);
321 if (-1 < (res = send(fd, buf, length, 0))) {
322 *count_out = (unsigned) res;
325 else if (EWOULDBLOCK == errno || EAGAIN == errno ||
326 ENOMEM == errno || ENOBUFS == errno)
331 IOResult os_sendv_nonb(int fd, struct MsgQ* buf, unsigned int* count_in,
332 unsigned int* count_out)
336 struct iovec iov[IOV_MAX];
339 assert(0 != count_in);
340 assert(0 != count_out);
346 count = msgq_mapiov(buf, iov, IOV_MAX, count_in);
348 if (-1 < (res = writev(fd, iov, count))) {
349 *count_out = (unsigned) res;
352 else if (EWOULDBLOCK == errno || EAGAIN == errno ||
353 ENOMEM == errno || ENOBUFS == errno)
359 int os_connect_nonb(int fd, const struct sockaddr_in* sin)
361 if (connect(fd, (struct sockaddr*) sin, sizeof(struct sockaddr_in))) {
362 if (errno != EINPROGRESS)
368 int os_get_sockname(int fd, struct sockaddr_in* sin_out)
370 unsigned int len = sizeof(struct sockaddr_in);
371 assert(0 != sin_out);
372 return (0 == getsockname(fd, (struct sockaddr*) sin_out, &len));
375 int os_get_peername(int fd, struct sockaddr_in* sin_out)
377 unsigned int len = sizeof(struct sockaddr_in);
378 assert(0 != sin_out);
379 return (0 == getpeername(fd, (struct sockaddr*) sin_out, &len));
382 int os_set_listen(int fd, int backlog)
384 return (0 == listen(fd, backlog));