84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
86 lines
1.5 KiB
C
86 lines
1.5 KiB
C
/* sysconf.c POSIX 4.8.1
|
|
* long int sysconf(int name);
|
|
*
|
|
* POSIX allows some of the values in <limits.h> to be increased at
|
|
* run time. The sysconf() function allows such values to be checked
|
|
* at run time. MINIX does not use this facility - the run time
|
|
* limits are those given in <limits.h>.
|
|
*/
|
|
#include <sys/cdefs.h>
|
|
#include "namespace.h"
|
|
|
|
#include <lib.h>
|
|
#include <unistd.h>
|
|
#include <time.h>
|
|
#include <stdio.h>
|
|
#include <minix/paths.h>
|
|
|
|
#ifdef __weak_alias
|
|
__weak_alias(sysconf, __sysconf)
|
|
#endif
|
|
|
|
static u32_t get_hz(void)
|
|
{
|
|
FILE *fp;
|
|
u32_t hz;
|
|
int r;
|
|
|
|
if ((fp = fopen(_PATH_PROC "hz", "r")) != NULL)
|
|
{
|
|
r = fscanf(fp, "%u", &hz);
|
|
|
|
fclose(fp);
|
|
|
|
if (r == 1)
|
|
return hz;
|
|
}
|
|
|
|
return DEFAULT_HZ;
|
|
}
|
|
|
|
long int sysconf(name)
|
|
int name; /* property being inspected */
|
|
{
|
|
switch(name) {
|
|
case _SC_ARG_MAX:
|
|
return (long) ARG_MAX;
|
|
|
|
case _SC_CHILD_MAX:
|
|
return (long) CHILD_MAX;
|
|
|
|
case _SC_CLK_TCK:
|
|
return (long) get_hz();
|
|
|
|
case _SC_NGROUPS_MAX:
|
|
return (long) NGROUPS_MAX;
|
|
|
|
case _SC_OPEN_MAX:
|
|
return (long) OPEN_MAX;
|
|
|
|
case _SC_JOB_CONTROL:
|
|
return -1L; /* no job control */
|
|
|
|
case _SC_SAVED_IDS:
|
|
return -1L; /* no saved uid/gid */
|
|
|
|
case _SC_VERSION:
|
|
return (long) _POSIX_VERSION;
|
|
|
|
case _SC_STREAM_MAX:
|
|
return (long) _POSIX_STREAM_MAX;
|
|
|
|
case _SC_TZNAME_MAX:
|
|
return (long) _POSIX_TZNAME_MAX;
|
|
|
|
case _SC_PAGESIZE:
|
|
return getpagesize();
|
|
|
|
case _SC_LINE_MAX:
|
|
return (long) LINE_MAX;
|
|
|
|
default:
|
|
errno = EINVAL;
|
|
return -1L;
|
|
}
|
|
}
|