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bomberclone/src/sysfunc.c

94 lines
2.4 KiB

/* $Id: sysfunc.c,v 1.3 2003/05/06 20:48:54 stpohle Exp $
sysfunc.c - this file hold some routines for the system functions..
like d_delay
*/
#include "bomberclone.h"
#include "sysfunc.h"
void
s_delay (int ms)
{
fd_set selectset;
struct timeval tval;
FD_ZERO (&selectset);
tval.tv_sec = 0;
tval.tv_usec = ms;
select (1, &selectset, NULL, NULL, &tval);
}
int
s_random (int maxnr)
{
#ifdef _WIN32
return ((rand () * maxnr) / RAND_MAX);
#else
int i;
i = (((rand () >> 16) * (maxnr + 1)) / (RAND_MAX >> 16));
if (i >= maxnr)
i = 0;
return i;
#endif
};
static char homedir[255];
char *
s_gethomedir ()
{
char *hd;
if ((hd = getenv ("HOME")) == NULL) {
/* Homedir konnte nicht ermittelt werden. */
homedir[0] = 0;
d_printf ("Variable HOME could not be found\n");
}
else {
strncpy (homedir, hd, 253);
homedir[strlen (homedir) + 1] = 0;
#ifdef _WIN32
if (homedir[strlen (homedir) - 1] != '\\')
homedir[strlen (homedir)] = '\\';
#else
if (homedir[strlen (homedir) - 1] != '/')
homedir[strlen (homedir)] = '/';
#endif
}
return homedir;
};
static _direntry direntrys[MAX_DIRENTRYS];
_direntry * s_getdir (char *path)
{
DIR *dp;
struct dirent *ep;
struct stat fstat;
int entrynr = 0;
char filename[LEN_PATHFILENAME];
dp = opendir (path);
if (dp != NULL) {
while ((ep = readdir (dp)) != NULL && entrynr < MAX_DIRENTRYS) {
direntrys[entrynr].next = NULL;
strncpy (direntrys[entrynr].name, ep->d_name, LEN_FILENAME - 1);
if (strlen (ep->d_name) >= LEN_FILENAME)
direntrys[entrynr].name[LEN_FILENAME - 1] = 0;
sprintf (filename, "%s/%s\0", path, direntrys[entrynr].name);
stat (filename, &fstat);
if (S_ISREG (fstat.st_mode)) {
direntrys[entrynr].flags = DF_file;
direntrys[entrynr].next = &direntrys[entrynr + 1];
entrynr++;
}
else if (S_ISDIR (fstat.st_mode)) {
direntrys[entrynr].flags = DF_dir;
direntrys[entrynr].next = &direntrys[entrynr + 1];
entrynr++;
}
}
}
closedir (dp);
if (entrynr == 0)
return NULL;
direntrys[entrynr - 1].next = NULL;
return &direntrys[0];
};