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28 lines
1018 B
C

#ifndef OPEN_H
#define OPEN_H
/* open filename for reading and return the file handle or -1 on error */
extern int open_read(const char *filename);
/* create filename for exclusive write only use (mode 0600) and return
* the file handle or -1 on error */
extern int open_excl(const char *filename);
/* open filename for appending write only use (mode 0600)
* and return the file handle or -1 on error.
* All write operation will append after the last byte, regardless of
* seeking or other processes also appending to the file. The file will
* be created if it does not exist. */
extern int open_append(const char *filename);
/* open filename for writing (mode 0644). Create the file if it does
* not exist, truncate it to zero length otherwise. Return the file
* handle or -1 on error. */
extern int open_trunc(const char *filename);
/* open filename for writing. Create the file if it does not exist.
* Return the file handle or -1 on error. */
extern int open_write(const char *filename);
#endif