Last change
on this file since 337 was 337, checked in by coas-nagasima, 6 years ago |
ASP3版ECNLを追加
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Property svn:eol-style
set to
native
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Property svn:mime-type
set to
text/x-csrc;charset=UTF-8
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File size:
565 bytes
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1 | #define _GNU_SOURCE
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2 | #include <fcntl.h>
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3 | #include <unistd.h>
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4 |
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5 | int daemon(int nochdir, int noclose)
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6 | {
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7 | if (!nochdir && chdir("/"))
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8 | return -1;
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9 | if (!noclose) {
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10 | int fd, failed = 0;
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11 | if ((fd = open("/dev/null", O_RDWR)) < 0) return -1;
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12 | if (dup2(fd, 0) < 0 || dup2(fd, 1) < 0 || dup2(fd, 2) < 0)
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13 | failed++;
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14 | if (fd > 2) close(fd);
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15 | if (failed) return -1;
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16 | }
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17 |
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18 | switch(fork()) {
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19 | case 0: break;
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20 | case -1: return -1;
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21 | default: _exit(0);
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22 | }
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23 |
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24 | if (setsid() < 0) return -1;
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25 |
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26 | switch(fork()) {
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27 | case 0: break;
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28 | case -1: return -1;
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29 | default: _exit(0);
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30 | }
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31 |
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32 | return 0;
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33 | }
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