mirror of
https://github.com/curl/curl.git
synced 2024-11-21 01:16:58 +08:00
132 lines
2.7 KiB
C
132 lines
2.7 KiB
C
#include "test.h"
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#ifdef UNISTD_H
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#include <unistd.h>
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#endif
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#include <mprintf.h>
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#ifndef FD_SETSIZE
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#error "this test requires FD_SETSIZE"
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#endif
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#define NUM_OPEN (FD_SETSIZE + 10)
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#define NUM_NEEDED (NUM_OPEN + 16)
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#if defined(WIN32) || defined(_WIN32) || defined(MSDOS)
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#define DEV_NULL "NUL"
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#else
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#define DEV_NULL "/dev/null"
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#endif
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#if defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
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static int rlimit(void)
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{
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struct rlimit rl;
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fprintf(stderr, "NUM_OPEN: %d\n", NUM_OPEN);
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fprintf(stderr, "NUM_NEEDED: %d\n", NUM_NEEDED);
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/* get open file limits */
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if (getrlimit(RLIMIT_NOFILE, &rl) == -1) {
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fprintf(stderr, "warning: getrlimit: failed to get RLIMIT_NOFILE\n");
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return -1;
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}
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/* check that hard limit is high enough */
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if (rl.rlim_max < NUM_NEEDED) {
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fprintf(stderr, "warning: RLIMIT_NOFILE hard limit %d < %d\n",
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(int)rl.rlim_max, NUM_NEEDED);
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return -1;
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}
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/* increase soft limit if needed */
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if (rl.rlim_cur < NUM_NEEDED) {
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rl.rlim_cur = NUM_NEEDED;
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if (setrlimit(RLIMIT_NOFILE, &rl) == -1) {
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fprintf(stderr, "warning: setrlimit: failed to set RLIMIT_NOFILE\n");
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return -1;
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}
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}
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return 0;
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}
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int test(char *URL)
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{
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int fd[NUM_OPEN];
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int i;
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CURLcode res;
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CURL *curl;
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if(!strcmp(URL, "check")) {
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/* used by the test script to ask if we can run this test or not */
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if(rlimit()) {
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printf("rlimit problems\n");
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return 1;
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}
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return 0; /* sure, run this! */
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}
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if(rlimit())
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/* failure */
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return 100;
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/* open a dummy descriptor */
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fd[0] = open(DEV_NULL, O_RDONLY);
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if (fd[0] == -1) {
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fprintf(stderr, "open: failed to open %s\n", DEV_NULL);
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return CURLE_FAILED_INIT;
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}
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/* create a bunch of file descriptors */
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for (i = 1; i < NUM_OPEN; i++) {
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fd[i] = dup(fd[0]);
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if (fd[i] == -1) {
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fprintf(stderr, "dup: attempt #%i failed\n", i);
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for (i--; i >= 0; i--)
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close(fd[i]);
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return CURLE_FAILED_INIT;
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}
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}
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curl = curl_easy_init();
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curl_easy_setopt(curl, CURLOPT_URL, URL);
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curl_easy_setopt(curl, CURLOPT_HEADER, TRUE);
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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for (i = 0; i < NUM_OPEN; i++)
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close(fd[i]);
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return (int)res;
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}
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#else
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/* system lacks getrlimit() and/or setrlimit() */
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int test(char *URL)
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{
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(void)URL;
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printf("system lacks necessary system function(s)");
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return 1;
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}
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#endif
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