#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/resource.h>
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void print_limits(char* name, int resource)
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{
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struct rlimit limit;
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if(getrlimit(resource, &limit) <0)
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{
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printf("getrlimit for %s failure: %s\n", strerror(errno));
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return ;
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}
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printf("%-15s ",name);
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if(limit.rlim_cur == RLIM_INFINITY)
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{
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printf("(infinite) ");
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}
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else
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{
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printf("%-15ld",limit.rlim_cur);
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}
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if(limit.rlim_max == RLIM_INFINITY)
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{
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printf("(infinite) ");
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}else
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{
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printf("%-15ld",limit.rlim_max);
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}
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printf("\n");
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}
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int main(void)
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{
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struct rlimit limit = {0};
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print_limits("RLIMIT_NPROC", RLIMIT_NPROC);
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print_limits("RLIMIT_DATA", RLIMIT_DATA);
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print_limits("RLIMIT_STACK", RLIMIT_STACK);
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print_limits("RLIMIT_NOFILE", RLIMIT_NOFILE);
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printf("\nAfter set RLIMIT_NOFILE:\n");
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getrlimit(RLIMIT_NOFILE, &limit );
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limit.rlim_cur = limit.rlim_max;
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setrlimit(RLIMIT_NOFILE, &limit );
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print_limits("RLIMIT_NOFILE", RLIMIT_NOFILE);
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return 0;
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}
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