16 lines
248 B
C
16 lines
248 B
C
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#include <sys/ipc.h>
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#include <sys/stat.h>
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key_t ftok(const char *path, int id)
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{
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struct stat st;
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if (lstat(path, &st) < 0)
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return (key_t) -1;
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return (key_t) ((st.st_ino & 0xffff) |
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((st.st_dev & 0xff) << 16) |
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((id & 0xff) << 24));
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}
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