84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/* Misc util functions */
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char const *cvs_id_util = "$Id: util.c,v 1.4 2004/11/02 04:35:04 bodea Exp $";
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#include <unistd.h>
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#include <errno.h>
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#include <sched.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <string.h>
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#include <sys/mman.h>
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#include "l2tpns.h"
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#ifdef BGP
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#include "bgp.h"
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#endif
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char *inet_toa(unsigned long addr)
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{
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struct in_addr in;
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memcpy(&in, &addr, sizeof(unsigned long));
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return inet_ntoa(in);
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}
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void *shared_malloc(unsigned int size)
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{
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void * p;
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p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0);
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if (p == MAP_FAILED)
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p = NULL;
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return p;
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}
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extern int udpfd, tunfd, snoopfd, ifrfd, cluster_sockfd;
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extern int *radfds;
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pid_t fork_and_close()
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{
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pid_t pid = fork();
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int i;
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if (pid)
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return pid;
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if (config->scheduler_fifo)
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{
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struct sched_param params = {0};
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params.sched_priority = 0;
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if (sched_setscheduler(0, SCHED_OTHER, ¶ms))
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{
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log(0, 0, 0, 0, "Error setting scheduler to OTHER after fork: %s\n", strerror(errno));
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log(0, 0, 0, 0, "This is probably really really bad.\n");
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}
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}
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signal(SIGPIPE, SIG_DFL);
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signal(SIGCHLD, SIG_DFL);
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signal(SIGHUP, SIG_DFL);
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signal(SIGUSR1, SIG_DFL);
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signal(SIGQUIT, SIG_DFL);
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signal(SIGKILL, SIG_DFL);
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signal(SIGALRM, SIG_DFL);
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signal(SIGTERM, SIG_DFL);
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// Close sockets
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if (udpfd) close(udpfd); udpfd = 0;
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if (tunfd) close(tunfd); tunfd = 0;
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if (snoopfd) close(snoopfd); snoopfd = 0;
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for (i = 0; i < config->num_radfds; i++)
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if (radfds[i]) close(radfds[i]);
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if (ifrfd) close(ifrfd); ifrfd = 0;
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if (cluster_sockfd) close(cluster_sockfd); cluster_sockfd = 0;
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if (clifd) close(clifd); clifd = 0;
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#ifdef BGP
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for (i = 0; i < BGP_NUM_PEERS; i++)
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if (bgp_peers[i].sock != -1)
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close(bgp_peers[i].sock);
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#endif /* BGP */
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return pid;
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}
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