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203 lines
4 KiB
C
203 lines
4 KiB
C
#include "syshdrs.h"
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#ifndef SO_RCVBUF
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int
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GetSocketBufSize(int UNUSED(sockfd), size_t *const rsize, size_t *const ssize)
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{
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LIBSIO_USE_VAR(sockfd);
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if (ssize != NULL)
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*ssize = 0;
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if (rsize != NULL)
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*rsize = 0;
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return (-1);
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} /* GetSocketBufSize */
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#else
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int
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GetSocketBufSize(int sockfd, size_t *const rsize, size_t *const ssize)
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{
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int rc = -1;
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int opt;
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int optsize;
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if (ssize != NULL) {
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opt = 0;
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optsize = sizeof(opt);
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rc = getsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (char *) &opt, &optsize);
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if (rc == 0)
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*ssize = (size_t) opt;
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else
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*ssize = 0;
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}
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if (rsize != NULL) {
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opt = 0;
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optsize = sizeof(opt);
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rc = getsockopt(sockfd, SOL_SOCKET, SO_RCVBUF, (char *) &opt, &optsize);
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if (rc == 0)
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*rsize = (size_t) opt;
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else
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*rsize = 0;
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}
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return (rc);
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} /* GetSocketBufSize */
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#endif
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#ifndef SO_RCVBUF
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int
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SetSocketBufSize(int UNUSED(sockfd), size_t UNUSED(rsize), size_t UNUSED(ssize))
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{
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LIBSIO_USE_VAR(sockfd);
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LIBSIO_USE_VAR(rsize);
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LIBSIO_USE_VAR(ssize);
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return (-1);
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} /* SetSocketBufSize */
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#else
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int
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SetSocketBufSize(int sockfd, size_t rsize, size_t ssize)
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{
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int rc = -1;
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int opt;
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int optsize;
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if (ssize > 0) {
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opt = (int) ssize;
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optsize = sizeof(opt);
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rc = setsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (const char *) &opt, optsize);
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if (rc < 0)
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return (rc);
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}
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if (rsize > 0) {
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opt = (int) rsize;
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optsize = sizeof(opt);
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rc = setsockopt(sockfd, SOL_SOCKET, SO_RCVBUF, (const char *) &opt, optsize);
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if (rc < 0)
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return (rc);
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}
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return (0);
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} /* SetSocketBufSize */
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#endif
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#ifndef TCP_NODELAY
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int
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GetSocketNagleAlgorithm(const int UNUSED(fd))
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{
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LIBSIO_USE_VAR(fd);
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return (-1);
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} /* GetSocketNagleAlgorithm */
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#else
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int
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GetSocketNagleAlgorithm(const int fd)
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{
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int optsize;
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int opt;
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opt = -2;
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optsize = (int) sizeof(opt);
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if (getsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *) &opt, &optsize) < 0)
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return (-1);
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return (opt);
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} /* GetSocketNagleAlgorithm */
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#endif /* TCP_NODELAY */
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#ifndef TCP_NODELAY
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int
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SetSocketNagleAlgorithm(const int UNUSED(fd), const int UNUSED(onoff))
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{
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LIBSIO_USE_VAR(fd);
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LIBSIO_USE_VAR(onoff);
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return (-1);
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} /* SetSocketNagleAlgorithm */
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#else
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int
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SetSocketNagleAlgorithm(const int fd, const int onoff)
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{
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int optsize;
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int opt;
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opt = onoff;
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optsize = (int) sizeof(opt);
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return (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *) &opt, optsize));
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} /* SetSocketNagleAlgorithm */
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#endif /* TCP_NODELAY */
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#ifndef SO_LINGER
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int
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GetSocketLinger(const int UNUSED(fd), int *const UNUSED(lingertime))
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{
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LIBSIO_USE_VAR(fd);
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LIBSIO_USE_VAR(lingertime);
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return (-1);
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} /* GetSocketLinger */
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#else
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int
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GetSocketLinger(const int fd, int *const lingertime)
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{
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int optsize;
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struct linger opt;
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optsize = (int) sizeof(opt);
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opt.l_onoff = 0;
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opt.l_linger = 0;
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if (getsockopt(fd, SOL_SOCKET, SO_LINGER, (char *) &opt, &optsize) < 0)
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return (-1);
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if (lingertime != NULL)
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*lingertime = opt.l_linger;
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return (opt.l_onoff);
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} /* GetSocketLinger */
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#endif /* SO_LINGER */
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#ifndef SO_LINGER
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int
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SetSocketLinger(const int UNUSED(fd), const int UNUSED(l_onoff), const int UNUSED(l_linger))
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{
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LIBSIO_USE_VAR(fd);
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LIBSIO_USE_VAR(l_onoff);
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LIBSIO_USE_VAR(l_linger);
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return (-1);
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} /* SetSocketLinger */
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#else
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int
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SetSocketLinger(const int fd, const int l_onoff, const int l_linger)
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{
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struct linger opt;
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int optsize;
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/*
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* From hpux:
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*
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* Structure used for manipulating linger option.
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*
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* if l_onoff == 0:
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* close(2) returns immediately; any buffered data is sent later
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* (default)
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*
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* if l_onoff != 0:
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* if l_linger == 0, close(2) returns after discarding any unsent data
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* if l_linger != 0, close(2) does not return until buffered data is sent
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*/
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#if 0
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struct linger {
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int l_onoff; /* 0 = do not wait to send data */
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/* non-0 = see l_linger */
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int l_linger; /* 0 = discard unsent data */
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/* non-0 = wait to send data */
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};
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#endif
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opt.l_onoff = l_onoff;
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opt.l_linger = l_linger;
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optsize = (int) sizeof(opt);
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return (setsockopt(fd, SOL_SOCKET, SO_LINGER, (char *) &opt, optsize));
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} /* SetSocketLinger */
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#endif /* SO_LINGER */
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