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/*****************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* $Id$
*/
#include "test.h"
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef UNISTD_H
#include <unistd.h>
#endif
#include <mprintf.h>
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#ifndef FD_SETSIZE
#error "this test requires FD_SETSIZE"
#endif
#define NUM_OPEN (FD_SETSIZE + 10)
#define NUM_NEEDED (NUM_OPEN + 16)
#if defined(WIN32) || defined(_WIN32) || defined(MSDOS)
#define DEV_NULL "NUL"
#else
#define DEV_NULL "/dev/null"
#endif
#if defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
static int fd[NUM_OPEN];
/*
* our_errno() returns the NOT *socket-related* errno (or equivalent)
* on this platform to hide platform specific for the calling function.
*/
static int our_errno(void)
{
#ifdef WIN32
return (int)GetLastError();
#else
return errno;
#endif
}
static void close_file_descriptors(void)
{
int i;
for (i = 0; i < NUM_OPEN; i++) {
close(fd[i]);
fd[i] = -1;
}
}
static int rlimit(int keep_open)
{
int i;
struct rlimit rl;
char strbuff[81];
char fmt_d[] = "%d";
char fmt_ld[] = "%ld";
char fmt_lld[] = "%lld";
char *fmt;
if (sizeof(rl.rlim_max) < sizeof(long))
fmt = fmt_d;
else if (sizeof(rl.rlim_max) == sizeof(long))
fmt = fmt_ld;
else
fmt = fmt_lld;
fprintf(stderr, "NUM_OPEN: %d\n", NUM_OPEN);
fprintf(stderr, "NUM_NEEDED: %d\n", NUM_NEEDED);
/* get open file limits */
if (getrlimit(RLIMIT_NOFILE, &rl) != 0) {
fprintf(stderr, "warning: getrlimit: failed to get RLIMIT_NOFILE "
"with errno %d\n", our_errno());
return -1;
}
/* check that hard limit is high enough */
#ifdef RLIM_INFINITY
if (rl.rlim_max != RLIM_INFINITY)
#endif
if ((rl.rlim_max > 0) && (rl.rlim_max < NUM_NEEDED)) {
sprintf(strbuff, fmt, rl.rlim_max);
fprintf(stderr, "warning: RLIMIT_NOFILE hard limit %s < %d\n",
strbuff, NUM_NEEDED);
return -2;
}
/* increase soft limit if needed */
#ifdef RLIM_INFINITY
if (rl.rlim_cur != RLIM_INFINITY)
#endif
if ((rl.rlim_cur > 0) && (rl.rlim_cur < NUM_NEEDED)) {
rl.rlim_cur = NUM_NEEDED;
if (setrlimit(RLIMIT_NOFILE, &rl) != 0) {
fprintf(stderr, "warning: setrlimit: failed to set RLIMIT_NOFILE "
"with errno %d\n", our_errno());
return -3;
}
/* verify that it has been increased */
if (getrlimit(RLIMIT_NOFILE, &rl) != 0) {
fprintf(stderr, "warning: getrlimit: failed to get RLIMIT_NOFILE "
"with errno %d\n", our_errno());
return -4;
}
if ((rl.rlim_cur > 0) && (rl.rlim_cur < NUM_NEEDED)) {
sprintf(strbuff, fmt, rl.rlim_cur);
fprintf(stderr, "warning: RLIMIT_NOFILE soft limit %s < %d\n",
strbuff, NUM_NEEDED);
return -5;
}
}
#ifdef RLIM_INFINITY
if (rl.rlim_cur == RLIM_INFINITY)
fprintf(stderr, "SOFT_LIMIT: INFINITY\n");
else
#endif
{
sprintf(strbuff, fmt, rl.rlim_cur);
fprintf(stderr, "SOFT_LIMIT: %s\n", strbuff);
}
#ifdef RLIM_INFINITY
if (rl.rlim_max == RLIM_INFINITY)
fprintf(stderr, "HARD_LIMIT: INFINITY\n");
else
#endif
{
sprintf(strbuff, fmt, rl.rlim_max);
fprintf(stderr, "HARD_LIMIT: %s\n", strbuff);
}
/* open a dummy descriptor */
fd[0] = open(DEV_NULL, O_RDONLY);
if (fd[0] < 0) {
fprintf(stderr, "open: failed to open %s "
"with errno %d\n", DEV_NULL, our_errno());
return -6;
}
/* create a bunch of file descriptors */
for (i = 1; i < NUM_OPEN; i++) {
fd[i] = dup(fd[0]);
if (fd[i] < 0) {
fprintf(stderr, "dup: attempt #%d failed "
"with errno %d\n", i, our_errno());
for (i--; i >= 0; i--)
close(fd[i]);
return -7;
}
}
/* close file descriptors unless instructed to keep them */
if (!keep_open) {
close_file_descriptors();
}
return 0;
}
int test(char *URL)
{
CURLcode res;
CURL *curl;
if(!strcmp(URL, "check")) {
/* used by the test script to ask if we can run this test or not */
if(rlimit(FALSE)) {
printf("rlimit problems\n");
return 1;
}
return 0; /* sure, run this! */
}
if(rlimit(TRUE))
/* failure */
return 100;
/* now run the test with NUM_OPEN open file descriptors
and close them all once this test is over */
if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
fprintf(stderr, "curl_global_init() failed\n");
close_file_descriptors();
return TEST_ERR_MAJOR_BAD;
}
if ((curl = curl_easy_init()) == NULL) {
fprintf(stderr, "curl_easy_init() failed\n");
close_file_descriptors();
curl_global_cleanup();
return TEST_ERR_MAJOR_BAD;
}
curl_easy_setopt(curl, CURLOPT_URL, URL);
curl_easy_setopt(curl, CURLOPT_HEADER, TRUE);
res = curl_easy_perform(curl);
close_file_descriptors();
curl_easy_cleanup(curl);
curl_global_cleanup();
return (int)res;
}
#else
/* system lacks getrlimit() and/or setrlimit() */
int test(char *URL)
{
(void)URL;
printf("system lacks necessary system function(s)");
return 1;
}
#endif
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