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getrlimit.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#if defined(BSD) || defined (MACOS)
#include <sys/time.h>
#define FMT "%10lld "
#else
#define FMT "%10ld "
#endif
#include <sys/resource.h>
#define doit(name) pr_limits(#name, name)
static void pr_limits(char *, int);
int main(void)
{
#ifdef RLIMIT_AS
doit(RLIMIT_AS);
#endif
doit(RLIMIT_CORE);
doit(RLIMIT_CPU);
doit(RLIMIT_DATA);
doit(RLIMIT_FSIZE);
#ifdef RLIMIT_LOCKS
doit(RLIMIT_LOCKS);
#endif
#ifdef RLMIT_MEMLOCK
doit(RLMIT_MEMLOCK);
#endif
doit(RLIMIT_NOFILE);
#ifdef RLIMIT_NPROC
doit(RLIMIT_NPROC);
#endif
#ifdef RLIMIT_RSS
doit(RLIMIT_RSS);
#endif
#ifdef RLIMIT_SBSIZE
doit(RLIMIT_SBSIZE);
#endif
doit(RLIMIT_STACK);
#ifdef RLIMIT_VMEM
doit(RLIMIT_VMEM);
#endif
exit(0);
}
static void pr_limits(char *name, int resource)
{
struct rlimit limit;
if(getrlimit(resource, &limit) < 0)
printf("getrlimit error\n");
printf("%-14s ", name);
if(limit.rlim_cur == RLIM_INFINITY)
printf("(infinite) ");
else
printf(FMT, limit.rlim_cur);
if(limit.rlim_max == RLIM_INFINITY)
printf("(infinite)");
else
printf(FMT, limit.rlim_max);
putchar((int)'\n');
}