fa1b436fca
Without this fix, children of i3bar would inherit the file descriptor of the IPC connection to i3. Therefore, even if i3bar exits with SIGSEGV, the connection to i3 stays open. Because nobody actually reads any messages by i3, the buffer will fill up and i3 can’t deliver any more messages, and thus busy-loops at that point. fixes #995
40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
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*
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <string.h>
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#include <err.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "libi3.h"
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/*
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* Connects to the i3 IPC socket and returns the file descriptor for the
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* socket. die()s if anything goes wrong.
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*
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*/
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int ipc_connect(const char *socket_path) {
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int sockfd = socket(AF_LOCAL, SOCK_STREAM, 0);
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if (sockfd == -1)
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err(EXIT_FAILURE, "Could not create socket");
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(void)fcntl(sockfd, F_SETFD, FD_CLOEXEC);
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struct sockaddr_un addr;
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memset(&addr, 0, sizeof(struct sockaddr_un));
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addr.sun_family = AF_LOCAL;
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strncpy(addr.sun_path, socket_path, sizeof(addr.sun_path) - 1);
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if (connect(sockfd, (const struct sockaddr*)&addr, sizeof(struct sockaddr_un)) < 0)
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err(EXIT_FAILURE, "Could not connect to i3");
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return sockfd;
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}
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