1open_trunc(3) Library Functions Manual open_trunc(3)
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6 open_trunc - open a file for writing
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9 #include <open.h>
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11 int open_trunc(const char *filename);
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14 open_trunc opens the file filename for write-only use and returns the
15 file handle. If the file exists, it will be truncated to zero bytes
16 length. If it does not exist, it will be created with mode 0644. If
17 there was an error opening or creating the file, open_trunc returns -1
18 and sets errno accordingly.
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21 open(2)
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25 open_trunc(3)