1 /*-------------------------------------------------------------------------
4 * POSTGRES LIBPQ buffer structure definitions.
7 * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
8 * Portions Copyright (c) 1994, Regents of the University of California
10 * src/include/libpq/libpq.h
12 *-------------------------------------------------------------------------
17 #include <sys/types.h>
18 #include <netinet/in.h>
20 #include "lib/stringinfo.h"
21 #include "libpq/libpq-be.h"
26 void (*comm_reset) (void);
28 int (*flush_if_writable) (void);
29 bool (*is_send_pending) (void);
30 int (*putmessage) (char msgtype, const char *s, size_t len);
31 void (*putmessage_noblock) (char msgtype, const char *s, size_t len);
32 void (*startcopyout) (void);
33 void (*endcopyout) (bool errorAbort);
36 extern PGDLLIMPORT PQcommMethods *PqCommMethods;
38 #define pq_comm_reset() (PqCommMethods->comm_reset())
39 #define pq_flush() (PqCommMethods->flush())
40 #define pq_flush_if_writable() (PqCommMethods->flush_if_writable())
41 #define pq_is_send_pending() (PqCommMethods->is_send_pending())
42 #define pq_putmessage(msgtype, s, len) \
43 (PqCommMethods->putmessage(msgtype, s, len))
44 #define pq_putmessage_noblock(msgtype, s, len) \
45 (PqCommMethods->putmessage(msgtype, s, len))
46 #define pq_startcopyout() (PqCommMethods->startcopyout())
47 #define pq_endcopyout(errorAbort) (PqCommMethods->endcopyout(errorAbort))
54 * prototypes for functions in pqcomm.c
56 extern int StreamServerPort(int family, char *hostName,
57 unsigned short portNumber, char *unixSocketDir,
58 pgsocket ListenSocket[], int MaxListen);
59 extern int StreamConnection(pgsocket server_fd, Port *port);
60 extern void StreamClose(pgsocket sock);
61 extern void TouchSocketFiles(void);
62 extern void RemoveSocketFiles(void);
63 extern void pq_init(void);
64 extern int pq_getbytes(char *s, size_t len);
65 extern int pq_getstring(StringInfo s);
66 extern void pq_startmsgread(void);
67 extern void pq_endmsgread(void);
68 extern bool pq_is_reading_msg(void);
69 extern int pq_getmessage(StringInfo s, int maxlen);
70 extern int pq_getbyte(void);
71 extern int pq_peekbyte(void);
72 extern int pq_getbyte_if_available(unsigned char *c);
73 extern int pq_putbytes(const char *s, size_t len);
76 * prototypes for functions in be-secure.c
78 extern char *ssl_cert_file;
79 extern char *ssl_key_file;
80 extern char *ssl_ca_file;
81 extern char *ssl_crl_file;
83 extern int (*pq_putmessage_hook) (char msgtype, const char *s, size_t len);
84 extern int (*pq_flush_hook) (void);
86 extern int secure_initialize(void);
87 extern bool secure_loaded_verify_locations(void);
88 extern void secure_destroy(void);
89 extern int secure_open_server(Port *port);
90 extern void secure_close(Port *port);
91 extern ssize_t secure_read(Port *port, void *ptr, size_t len);
92 extern ssize_t secure_write(Port *port, void *ptr, size_t len);
93 extern ssize_t secure_raw_read(Port *port, void *ptr, size_t len);
94 extern ssize_t secure_raw_write(Port *port, const void *ptr, size_t len);
96 extern bool ssl_loaded_verify_locations;
99 extern char *SSLCipherSuites;
100 extern char *SSLECDHCurve;
101 extern bool SSLPreferServerCiphers;