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#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "connection.h"
#include "xwrap.h"
#include <fcntl.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
int ras_conn_init (
RasConn* conn, RasConnPerm perm, int domain,
const char* name, const char* log_file, int id) {
if (log_file == NULL || strcmp (log_file, "stderr") == 0) {
conn->log = stderr;
conn->log_fd = STDERR_FILENO;
conn->log_file = NULL;
conn->log_is_set = false;
} else if (strcmp (log_file, "stdout") == 0) {
conn->log = stdout;
conn->log_fd = STDOUT_FILENO;
conn->log_file = NULL;
conn->log_is_set = false;
} else {
int fd = open (log_file, O_WRONLY | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR);
if (fd < 0) {
return -1;
}
FILE* fp = fdopen (fd, "ab");
if (fp == NULL) {
return -1;
}
setvbuf (fp, NULL, _IONBF, 0);
conn->log = fp;
conn->log_fd = fd;
conn->log_file = xstrdup (log_file);
conn->log_is_set = true;
}
char* dir_sep_loc = strrchr (name, '/');
if (dir_sep_loc != NULL) {
name = dir_sep_loc + 1;
}
conn->domain = domain;
conn->perm = perm;
conn->id = id;
conn->name = xsprintf ("%s-%d (%s-%s)",
name, conn->id,
domain == AF_UNIX ? "unix" :
domain == AF_INET ? "ipv4" :
domain == AF_INET6 ? "ipv6" : "unknown",
perm == RAS_CONN_PERM_RESTRICTED ? "restricted" :
perm == RAS_CONN_PERM_REGULAR ? "regular" :
perm == RAS_CONN_PERM_ADMIN ? "admin" : "unknown");
conn->fd_is_set = false;
return 0;
}
void ras_conn_destroy (RasConn* conn) {
if (conn->fd_is_set) {
close (conn->fd);
}
if (conn->log_is_set) {
fclose (conn->log);
}
free (conn->log_file);
free (conn->name);
}
void ras_conn_log (RasConn* conn, const char* format, ...) {
va_list ap;
time_t t;
struct tm tmd;
va_start (ap, format);
time (&t);
localtime_r (&t, &tmd);
struct flock lock_info = {
.l_type = F_WRLCK,
.l_whence = SEEK_END,
.l_start = 0,
.l_len = 0
};
fcntl (conn->log_fd, F_SETLKW, &lock_info);
fprintf (conn->log,
"%04d-%02d-%02d %02d:%02d:%02d %s [%d]: ",
tmd.tm_year + 1900, tmd.tm_mon + 1, tmd.tm_mday,
tmd.tm_hour, tmd.tm_min, tmd.tm_sec,
conn->name, getpid ());
vfprintf (conn->log, format, ap);
putc ('\n', conn->log);
lock_info.l_type = F_UNLCK;
fcntl (conn->log_fd, F_SETLK, &lock_info);
va_end (ap);
}
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