pg_strong_random.c File Reference

#include "c.h"
#include <fcntl.h>
#include <unistd.h>
#include <sys/time.h>

Include dependency graph for pg_strong_random.c:

Go to the source code of this file.

Functions
void	pg_strong_random_init (void)
bool	pg_strong_random (void *buf, size_t len)

Function Documentation

pg_strong_random()

bool pg_strong_random	(	void *	buf,
		size_t	len
	)

Definition at line 150 of file pg_strong_random.c.

{
    int         f;
    char       *p = buf;
    ssize_t     res;
 
    f = open("/dev/urandom", O_RDONLY, 0);
    if (f == -1)
        return false;
 
    while (len)
    {
        res = read(f, p, len);
        if (res <= 0)
        {
            if (errno == EINTR)
                continue;       /* interrupted by signal, just retry */
 
            close(f);
            return false;
        }
 
        p += res;
        len -= res;
    }
 
    close(f);
    return true;
}

References buf, close, EINTR, len, and read.

Referenced by build_client_first_message(), build_server_first_message(), CheckMD5Auth(), gen_random_uuid(), generate_uuidv7(), init_sess_key(), InitControlFile(), pad_eme_pkcs1_v15(), PerformRadiusTransaction(), pg_be_scram_build_secret(), pg_fe_scram_build_secret(), pg_random_bytes(), pgp_s2k_fill(), PostgresMain(), px_gen_salt(), set_random_seed(), and write_prefix().

pg_strong_random_init()

void pg_strong_random_init

(

void

)

Definition at line 144 of file pg_strong_random.c.

{
    /* No initialization needed */
}

Referenced by fork_process().