Files
openairinterface5g/openair3/PMIPv6/freeradius-client-1.1.6/lib/util.c
T
2013-06-25 09:05:02 +00:00

350 lines
6.1 KiB
C

/*
* $Id: util.c,v 1.9 2008/02/11 06:54:23 sobomax Exp $
*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
*
* Copyright (C) 1995,1996,1997 Lars Fenneberg
*
* Copyright 1992 Livingston Enterprises, Inc.
*
* Copyright 1992,1993, 1994,1995 The Regents of the University of Michigan
* and Merit Network, Inc. All Rights Reserved
*
* See the file COPYRIGHT for the respective terms and conditions.
* If the file is missing contact me at lf@elemental.net
* and I'll send you a copy.
*
*/
#include <sys/time.h>
#include <config.h>
#include <includes.h>
#include <freeradius-client.h>
#define RC_BUFSIZ 1024
/*
* Function: rc_str2tm
*
* Purpose: Turns printable string into correct tm struct entries.
*
*/
static const char * months[] =
{
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
void rc_str2tm (char *valstr, struct tm *tm)
{
int i;
/* Get the month */
for (i = 0; i < 12; i++)
{
if (strncmp (months[i], valstr, 3) == 0)
{
tm->tm_mon = i;
i = 13;
}
}
/* Get the Day */
tm->tm_mday = atoi (&valstr[4]);
/* Now the year */
tm->tm_year = atoi (&valstr[7]) - 1900;
}
/*
* Function: rc_getifname
*
* Purpose: get the network interface name associated with this tty
*
*/
char *rc_getifname(rc_handle *rh, char *tty)
{
#if defined(BSD4_4) || defined(linux)
int fd;
if ((fd = open(tty, O_RDWR|O_NDELAY)) < 0) {
rc_log(LOG_ERR, "rc_getifname: can't open %s: %s", tty, strerror(errno));
return NULL;
}
#endif
#ifdef BSD4_4
strcpy(rh->ifname,ttyname(fd));
if (strlen(rh->ifname) < 1) {
rc_log(LOG_ERR, "rc_getifname: can't get attached interface of %s: %s", tty, strerror(errno));
close(fd);
return NULL;
}
#elif linux
if (ioctl(fd, SIOCGIFNAME, rh->ifname) < 0) {
rc_log(LOG_ERR, "rc_getifname: can't ioctl %s: %s", tty, strerror(errno));
close(fd);
return NULL;
}
#else
return NULL;
#endif
#if defined(BSD4_4) || defined(linux)
close(fd);
return rh->ifname;
#endif
}
/*
* Function: rc_getstr
*
* Purpose: Reads in a string from the user (with or witout echo)
*
*/
#ifndef _MSC_VER
char *rc_getstr (rc_handle *rh, char *prompt, int do_echo)
{
int in, out;
char *p;
struct termios term_old, term_new;
int is_term, flags, old_flags;
char c;
int flushed = 0;
sigset_t newset;
sigset_t oldset;
in = fileno(stdin);
out = fileno(stdout);
(void) sigemptyset (&newset);
(void) sigaddset (&newset, SIGINT);
(void) sigaddset (&newset, SIGTSTP);
(void) sigaddset (&newset, SIGQUIT);
(void) sigprocmask (SIG_BLOCK, &newset, &oldset);
if ((is_term = isatty(in)))
{
(void) tcgetattr (in, &term_old);
term_new = term_old;
if (do_echo)
term_new.c_lflag |= ECHO;
else
term_new.c_lflag &= ~ECHO;
if (tcsetattr (in, TCSAFLUSH, &term_new) == 0)
flushed = 1;
}
else
{
is_term = 0;
if ((flags = fcntl(in, F_GETFL, 0)) >= 0) {
old_flags = flags;
flags |= O_NONBLOCK;
fcntl(in, F_SETFL, flags);
while (read(in, &c, 1) > 0)
/* nothing */;
fcntl(in, F_SETFL, old_flags);
flushed = 1;
}
}
write(out, prompt, strlen(prompt));
/* well, this looks ugly, but it handles the following end of line
markers: \r \r\0 \r\n \n \n\r, at least at a second pass */
p = rh->buf;
for (;;)
{
if (read(in, &c, 1) <= 0)
return NULL;
if (!flushed && ((c == '\0') || (c == '\r') || (c == '\n'))) {
flushed = 1;
continue;
}
if ((c == '\r') || (c == '\n'))
break;
flushed = 1;
if (p < rh->buf + GETSTR_LENGTH)
{
if (do_echo && !is_term)
write(out, &c, 1);
*p++ = c;
}
}
*p = '\0';
if (!do_echo || !is_term) write(out, "\r\n", 2);
if (is_term)
tcsetattr (in, TCSAFLUSH, &term_old);
else {
if ((flags = fcntl(in, F_GETFL, 0)) >= 0) {
old_flags = flags;
flags |= O_NONBLOCK;
fcntl(in, F_SETFL, flags);
while (read(in, &c, 1) > 0)
/* nothing */;
fcntl(in, F_SETFL, old_flags);
}
}
(void) sigprocmask (SIG_SETMASK, &oldset, NULL);
return rh->buf;
}
#endif
void rc_mdelay(int msecs)
{
struct timeval tv;
tv.tv_sec = (int) msecs / 1000;
tv.tv_usec = (msecs % 1000) * 1000;
select(0, NULL, NULL, NULL, &tv);
}
/*
* Function: rc_mksid
*
* Purpose: generate a quite unique string
*
* Remarks: not that unique at all...
*
*/
char *
rc_mksid (rc_handle *rh)
{
sprintf (rh->buf1, "%08lX%04X", (unsigned long int) time (NULL), (unsigned int) getpid ());
return rh->buf1;
}
/*
* Function: rc_new
*
* Purpose: Initialises new Radius Client handle
*
*/
rc_handle *
rc_new(void)
{
rc_handle *rh;
rh = malloc(sizeof(*rh));
if (rh == NULL) {
rc_log(LOG_CRIT, "rc_new: out of memory");
return NULL;
}
memset(rh, 0, sizeof(*rh));
return rh;
}
/*
* Function: rc_destroy
*
* Purpose: Destroys Radius Client handle reclaiming all memory
*
*/
void
rc_destroy(rc_handle *rh)
{
rc_map2id_free(rh);
rc_dict_free(rh);
rc_config_free(rh);
if (rh->this_host_bind_ipaddr != NULL)
free(rh->this_host_bind_ipaddr);
if (rh->ppbuf != NULL)
free(rh->ppbuf);
free(rh);
}
/*
* Function: rc_fgetln
*
* Purpose: Get next line from the stream.
*
*/
char *
rc_fgetln(FILE *fp, size_t *len)
{
static char *buf = NULL;
static size_t bufsiz = 0;
char *ptr;
if (buf == NULL) {
bufsiz = RC_BUFSIZ;
if ((buf = malloc(bufsiz)) == NULL)
return NULL;
}
if (fgets(buf, (int)bufsiz, fp) == NULL)
return NULL;
*len = 0;
while ((ptr = strchr(&buf[*len], '\n')) == NULL) {
size_t nbufsiz = bufsiz + RC_BUFSIZ;
char *nbuf = realloc(buf, nbufsiz);
if (nbuf == NULL) {
int oerrno = errno;
free(buf);
errno = oerrno;
buf = NULL;
return NULL;
} else
buf = nbuf;
*len = bufsiz;
if (fgets(&buf[bufsiz], RC_BUFSIZ, fp) == NULL)
return buf;
bufsiz = nbufsiz;
}
*len = (ptr - buf) + 1;
return buf;
}
/*
* Function: rc_getctime
*
* Purpose: Get current time (seconds since epoch) expressed as
* double-precision floating point number.
*
*/
double
rc_getctime(void)
{
struct timeval timev;
if (gettimeofday(&timev, NULL) == -1)
return -1;
return timev.tv_sec + ((double)timev.tv_usec) / 1000000.0;
}