📄 apue_db.h
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#ifndef _APUE_DB_H#define _APUE_DB_Htypedef void * DBHANDLE;DBHANDLE db_open(const char *, int, ...);void db_close(DBHANDLE);char *db_fetch(DBHANDLE, const char *);int db_store(DBHANDLE, const char *, const char *, int);int db_delete(DBHANDLE, const char *);void db_rewind(DBHANDLE);char *db_nextrec(DBHANDLE, char *);/* * Flags for db_store(). */#define DB_INSERT 1 /* insert new record only */#define DB_REPLACE 2 /* replace existing record */#define DB_STORE 3 /* replace or insert *//* * Implementation limits. */#define IDXLEN_MIN 6 /* key, sep, start, sep, length, \n */#define IDXLEN_MAX 1024 /* arbitrary */#define DATLEN_MIN 2 /* data byte, newline */#define DATLEN_MAX 1024 /* arbitrary */#endif /* _APUE_DB_H */
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