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/* @(#) $Id: util.c,v 1.2 2007/01/23 13:40:01 ralf Exp $ */
/*
* (c) 2002 Thomas Osterried DL9SAU <thomas@x-berg.in-berlin.de>
* License: GPL. See http://www.fsf.org/
* Sources: http://x-berg.in-berlin.de/cgi-bin/viewcvs.cgi/ampr/axgetput/
*/
#include "includes.h"
#include "axgetput.h"
/* Use private function because some platforms are broken, eg 386BSD */
static int Xtolower(int c)
{
return (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c;
}
/*---------------------------------------------------------------------------*/
char *strlwc(char *s)
{
char *p;
for (p = s; (*p = Xtolower(*p)); p++) ;
return s;
}
/*---------------------------------------------------------------------------*/
char *strtrim(char *s)
{
char *p;
for (p = s; *p; p++) ;
while (--p >= s && isspace(*p & 0xff)) ;
p[1] = 0;
return s;
}
/*---------------------------------------------------------------------------*/
int my_read(int fd, char *s, int len_max, int *eof, char *p_break)
{
struct timeval timeout;
fd_set errfds;
int len_got;
*eof = 0;
for (len_got = 0; len_got < len_max; ) {
int len;
char *s_curr = s + len_got;
if ((len = read(fd, s_curr, (p_break ? 1 : len_max))) < 1) {
if (len == -1 && errno == EAGAIN) {
sleep(10);
continue;
}
*eof = 1;
/*
* len = 0: normal eof. if we're looking for a string, return -1 since
* we have'nt found
*/
return (len == 0 && p_break ? -1 : (len_got ? len_got : len));
}
len_got += len;
/* read once? or char in p_break found? */
if (!p_break || strchr(p_break, *s_curr))
break;
}
timeout.tv_sec = 0;
timeout.tv_usec = 0;
FD_ZERO(&errfds);
FD_SET(fdout, &errfds);
if (select(fd+1, 0, 0, &errfds, &timeout) && FD_ISSET(fd, &errfds))
*eof = 1;
return len_got;
}
/*---------------------------------------------------------------------------*/
int secure_write(int fd, char *s, int len_write) {
int len_write_left_curr = len_write;
while (len_write_left_curr) {
int len;
if ((len = write(fd, s, len_write_left_curr)) < 0) {
if (len == -1 && errno == EAGAIN) {
sleep(10);
continue;
}
return -1;
}
if (len != len_write_left_curr) {
/* queue busy.. */
sleep(10);
}
s += len;
len_write_left_curr -= len;
}
return len_write;
}
/*---------------------------------------------------------------------------*/
char *get_fixed_filename(char *line, long size, unsigned int msg_crc, int generate_filename) {
static char filename[1024];
char *p, *q, *r;
*filename = 0;
if ((p = strchr(line, '\"'))) {
p++;
}
/* security.. */
if ((q = strrchr((p ? p : line), '/'))) {
p = ++q;
}
if ((q = strrchr((p ? p : line), '\\'))) {
p = ++q;
}
if ((q = strrchr((p ? p : line), ':'))) {
p = ++q;
}
if (!p) {
p = line;
}
while (*p && isspace(*p & 0xff))
p++;
for (r = filename, q = p; *q; q++) {
if (*q == '"' || *q == ';') {
break;
}
*r++ = *q;
}
*r = 0;
strtrim(filename);
if ((q = strrchr(filename, '.'))) {
if (!*(q+1)) {
/* remove trailing dots */
*q = 0;
} else {
/* make suffix lowercase */
strlwc(q);
}
}
if (!*filename && generate_filename) {
sprintf(filename, "unknown-%ld%d%ld.bin", size, msg_crc, time(0));
}
return filename;
}
/*---------------------------------------------------------------------------*/
/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
/* Linear day numbers of the respective 1sts in non-leap years. */
static int day_n[] = { 0,31,59,90,120,151,181,212,243,273,304,334,0,0,0,0 };
/* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */
/*---------------------------------------------------------------------------*/
long date_dos2unix(unsigned short time,unsigned short date)
{
int month,year;
long secs;
month = ((date >> 5) & 15)-1;
year = date >> 9;
secs = (time & 31)*2+60*((time >> 5) & 63)+(time >> 11)*3600+86400*
((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 &&
month < 2 ? 1 : 0)+3653);
/* days since 1.1.70 plus 80's leap day */
return secs;
}
/*---------------------------------------------------------------------------*/
/* Convert linear UNIX date to a MS-DOS time/date pair. */
void date_unix2dos(int unix_date,unsigned short *time, unsigned short *date)
{
int day,year,nl_day,month;
*time = (unix_date % 60)/2+(((unix_date/60) % 60) << 5)+
(((unix_date/3600) % 24) << 11);
day = unix_date/86400-3652;
year = day/365;
if ((year+3)/4+365*year > day) year--;
day -= (year+3)/4+365*year;
if (day == 59 && !(year & 3)) {
nl_day = day;
month = 2;
}
else {
nl_day = (year & 3) || day <= 59 ? day : day-1;
for (month = 0; month < 12; month++)
if (day_n[month] > nl_day) break;
}
*date = nl_day-day_n[month-1]+1+(month << 5)+(year << 9);
}
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