mirror of
https://github.com/fluencelabs/musl
synced 2025-06-02 01:21:34 +00:00
b9bb8f67bb
previously, it was pretty much random which one of these trees a given function appeared in. they have now been organized into: src/linux: non-POSIX linux syscalls (possibly shard with other nixen) src/legacy: various obsolete/legacy functions, mostly wrappers src/misc: still mostly uncategorized; some misc POSIX, some nonstd src/crypt: crypt hash functions further cleanup will be done later.
34 lines
565 B
C
34 lines
565 B
C
#define _GNU_SOURCE
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#include <fcntl.h>
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#include <unistd.h>
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int daemon(int nochdir, int noclose)
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{
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if (!nochdir && chdir("/"))
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return -1;
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if (!noclose) {
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int fd, failed = 0;
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if ((fd = open("/dev/null", O_RDWR)) < 0) return -1;
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if (dup2(fd, 0) < 0 || dup2(fd, 1) < 0 || dup2(fd, 2) < 0)
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failed++;
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if (fd > 2) close(fd);
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if (failed) return -1;
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}
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switch(fork()) {
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case 0: break;
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case -1: return -1;
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default: _exit(0);
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}
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if (setsid() < 0) return -1;
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switch(fork()) {
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case 0: break;
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case -1: return -1;
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default: _exit(0);
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}
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return 0;
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}
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