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-rw-r--r--tests/libtest/Makefile.am4
-rw-r--r--tests/libtest/lib518.c211
-rw-r--r--tests/libtest/lib537.c399
3 files changed, 447 insertions, 167 deletions
diff --git a/tests/libtest/Makefile.am b/tests/libtest/Makefile.am
index eb936eb48..aadd9c7ed 100644
--- a/tests/libtest/Makefile.am
+++ b/tests/libtest/Makefile.am
@@ -103,7 +103,6 @@ lib517_SOURCES = lib517.c $(SUPPORTFILES)
lib517_DEPENDENCIES = $(DEPENDENCIES)
lib518_SOURCES = lib518.c $(SUPPORTFILES)
-lib518_CFLAGS = -DLIB518
lib518_DEPENDENCIES = $(DEPENDENCIES)
lib519_SOURCES = lib519.c $(SUPPORTFILES)
@@ -150,7 +149,6 @@ lib533_DEPENDENCIES = $(DEPENDENCIES)
lib536_SOURCES = lib536.c $(SUPPORTFILES)
lib536_DEPENDENCIES = $(DEPENDENCIES)
-lib537_SOURCES = lib518.c $(SUPPORTFILES)
-lib537_CFLAGS = -DLIB537
+lib537_SOURCES = lib537.c $(SUPPORTFILES)
lib537_DEPENDENCIES = $(DEPENDENCIES)
diff --git a/tests/libtest/lib518.c b/tests/libtest/lib518.c
index 0edfb3a85..cff412010 100644
--- a/tests/libtest/lib518.c
+++ b/tests/libtest/lib518.c
@@ -8,56 +8,31 @@
* $Id$
*/
-/*
- * This source code is used for lib518 and lib537.
- */
-
#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 HAVE_UNISTD_H
-#include <unistd.h>
-#endif
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
-
-#define _MPRINTF_REPLACE /* use our functions only */
-#include <mprintf.h>
-
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
#endif
-#if defined(LIB518) && !defined(FD_SETSIZE)
+#ifndef FD_SETSIZE
#error "this test requires FD_SETSIZE"
#endif
-#ifdef LIB518
-#define SAFETY_MARGIN 16
-#define NUM_OPEN (FD_SETSIZE + 10)
-#define NUM_NEEDED (NUM_OPEN + SAFETY_MARGIN)
-#endif
-
-#ifdef LIB537
-#define SAFETY_MARGIN 5
-#endif
-
-#define MEMCHUNK_NITEMS 32000
+#define SAFETY_MARGIN (16)
+#define NUM_OPEN (FD_SETSIZE + 10)
+#define NUM_NEEDED (NUM_OPEN + SAFETY_MARGIN)
#if defined(WIN32) || defined(_WIN32) || defined(MSDOS)
#define DEV_NULL "NUL"
@@ -88,38 +63,31 @@ static int our_errno(void)
static void store_errmsg(const char *msg, int err)
{
if (!err)
- snprintf(msgbuff, sizeof(msgbuff), "%s", msg);
+ sprintf(msgbuff, "%s", msg);
else
- snprintf(msgbuff, sizeof(msgbuff), "%s, errno %d, %s",
- msg, err, strerror(err));
+ sprintf(msgbuff, "%s, errno %d, %s", msg, err, strerror(err));
}
static void close_file_descriptors(void)
{
- fprintf(stderr, "closing file descriptors\n");
for (num_open.rlim_cur = 0;
num_open.rlim_cur < num_open.rlim_max;
num_open.rlim_cur++)
- close(fd[num_open.rlim_cur]);
+ if (fd[num_open.rlim_cur] > 0)
+ close(fd[num_open.rlim_cur]);
free(fd);
fd = NULL;
- fprintf(stderr, "file descriptors closed\n");
}
static int rlimit(int keep_open)
{
-#ifdef LIB537
- int *tmpfd;
-#endif
- int i;
+ int nitems, i;
int *memchunk = NULL;
char *fmt;
struct rlimit rl;
char strbuff[256];
char strbuff1[81];
-#ifdef LIB518
char strbuff2[81];
-#endif
char fmt_u[] = "%u";
char fmt_lu[] = "%lu";
#ifdef HAVE_LONGLONG
@@ -146,7 +114,7 @@ static int rlimit(int keep_open)
strcpy(strbuff, "INFINITY");
else
#endif
- snprintf(strbuff, sizeof(strbuff), fmt, rl.rlim_cur);
+ sprintf(strbuff, fmt, rl.rlim_cur);
fprintf(stderr, "initial soft limit: %s\n", strbuff);
#ifdef RLIM_INFINITY
@@ -154,16 +122,14 @@ static int rlimit(int keep_open)
strcpy(strbuff, "INFINITY");
else
#endif
- snprintf(strbuff, sizeof(strbuff), fmt, rl.rlim_max);
+ sprintf(strbuff, fmt, rl.rlim_max);
fprintf(stderr, "initial hard limit: %s\n", strbuff);
-#ifdef LIB518
/* show our constants */
fprintf(stderr, "test518 FD_SETSIZE: %d\n", FD_SETSIZE);
fprintf(stderr, "test518 NUM_OPEN : %d\n", NUM_OPEN);
fprintf(stderr, "test518 NUM_NEEDED: %d\n", NUM_NEEDED);
-#endif
/*
* if soft limit and hard limit are different we ask the
@@ -199,7 +165,7 @@ static int rlimit(int keep_open)
strcpy(strbuff, "INFINITY");
else
#endif
- snprintf(strbuff, sizeof(strbuff), fmt, rl.rlim_cur);
+ sprintf(strbuff, fmt, rl.rlim_cur);
fprintf(stderr, "current soft limit: %s\n", strbuff);
#ifdef RLIM_INFINITY
@@ -207,7 +173,7 @@ static int rlimit(int keep_open)
strcpy(strbuff, "INFINITY");
else
#endif
- snprintf(strbuff, sizeof(strbuff), fmt, rl.rlim_max);
+ sprintf(strbuff, fmt, rl.rlim_max);
fprintf(stderr, "current hard limit: %s\n", strbuff);
} /* (rl.rlim_cur != rl.rlim_max) */
@@ -218,15 +184,8 @@ static int rlimit(int keep_open)
* This means that if for any reason we are not able to
* open more than FD_SETSIZE file descriptors then test
* 518 should not be run.
- *
- * test 537 is all about testing libcurl functionality
- * when the system has nearly exhausted the number of
- * free file descriptors. Test 537 will try to run with
- * very few free file descriptors.
*/
-#ifdef LIB518
-
/*
* verify that soft limit is higher than NUM_NEEDED,
* number of file descriptors we would try to open
@@ -240,17 +199,15 @@ static int rlimit(int keep_open)
(rl.rlim_cur != RLIM_INFINITY) &&
#endif
(rl.rlim_cur <= num_open.rlim_cur)) {
- snprintf(strbuff2, sizeof(strbuff2), fmt, rl.rlim_cur);
- snprintf(strbuff1, sizeof(strbuff1), fmt, num_open.rlim_cur);
- snprintf(strbuff, sizeof(strbuff), "fd needed (%s) > "
- "system limit (%s)", strbuff1, strbuff2);
+ sprintf(strbuff2, fmt, rl.rlim_cur);
+ sprintf(strbuff1, fmt, num_open.rlim_cur);
+ sprintf(strbuff, "fd needed (%s) > system limit (%s)",
+ strbuff1, strbuff2);
store_errmsg(strbuff, 0);
fprintf(stderr, "%s\n", msgbuff);
- return -6;
+ return -4;
}
-#endif /* LIB518 */
-
/*
* reserve a chunk of memory before opening file descriptors to
* avoid a low memory condition once the file descriptors are
@@ -260,7 +217,12 @@ static int rlimit(int keep_open)
* that it becomes available to the test.
*/
- memchunk = malloc(sizeof(*memchunk) * MEMCHUNK_NITEMS);
+ nitems = INT_MAX / sizeof(*memchunk);
+ do {
+ memchunk = malloc(sizeof(*memchunk) * (size_t)nitems);
+ if (!memchunk)
+ nitems /= 2;
+ } while (nitems && !memchunk);
if (!memchunk) {
store_errmsg("memchunk, malloc() failed", our_errno());
fprintf(stderr, "%s\n", msgbuff);
@@ -269,44 +231,28 @@ static int rlimit(int keep_open)
/* initialize it to fight lazy allocation */
- for (i = 0; i < MEMCHUNK_NITEMS; i++)
+ for (i = 0; i < nitems; i++)
memchunk[i] = -1;
- /* set the number of file descriptors we will try to open to ... */
+ /* set the number of file descriptors we will try to open */
-#ifdef LIB518
- /* NUM_OPEN */
num_open.rlim_max = NUM_OPEN;
-#endif
-
-#ifdef LIB537
-#ifdef RLIM_INFINITY
- if ((rl.rlim_cur > 0) && (rl.rlim_cur != RLIM_INFINITY)) {
-#else
- if (rl.rlim_cur > 0) {
-#endif
- /* soft limit minus SAFETY_MARGIN */
- num_open.rlim_max = rl.rlim_cur - SAFETY_MARGIN;
- }
- else {
- /* biggest file descriptor array size */
- num_open.rlim_max = INT_MAX;
- }
-#endif /* LIB537 */
/* verify that we won't overflow size_t in malloc() */
if (num_open.rlim_max > ((size_t)-1) / sizeof(*fd)) {
- snprintf(strbuff1, sizeof(strbuff1), fmt, num_open.rlim_max);
- snprintf(strbuff, sizeof(strbuff), "unable to allocate an array for %s "
- "file descriptors, would overflow size_t", strbuff1);
+ sprintf(strbuff1, fmt, num_open.rlim_max);
+ sprintf(strbuff, "unable to allocate an array for %s "
+ "file descriptors, would overflow size_t", strbuff1);
store_errmsg(strbuff, 0);
fprintf(stderr, "%s\n", msgbuff);
free(memchunk);
return -8;
}
- snprintf(strbuff, sizeof(strbuff), fmt, num_open.rlim_max);
+ /* allocate array for file descriptors */
+
+ sprintf(strbuff, fmt, num_open.rlim_max);
fprintf(stderr, "allocating array for %s file descriptors\n", strbuff);
fd = malloc(sizeof(*fd) * (size_t)(num_open.rlim_max));
@@ -324,14 +270,14 @@ static int rlimit(int keep_open)
num_open.rlim_cur++)
fd[num_open.rlim_cur] = -1;
- snprintf(strbuff, sizeof(strbuff), fmt, num_open.rlim_max);
+ sprintf(strbuff, fmt, num_open.rlim_max);
fprintf(stderr, "trying to open %s file descriptors\n", strbuff);
/* open a dummy descriptor */
fd[0] = open(DEV_NULL, O_RDONLY);
if (fd[0] < 0) {
- snprintf(strbuff, sizeof(strbuff), "opening of %s failed", DEV_NULL);
+ sprintf(strbuff, "opening of %s failed", DEV_NULL);
store_errmsg(strbuff, our_errno());
fprintf(stderr, "%s\n", msgbuff);
free(fd);
@@ -342,8 +288,6 @@ static int rlimit(int keep_open)
/* create a bunch of file descriptors */
-#ifdef LIB518
-
for (num_open.rlim_cur = 1;
num_open.rlim_cur < num_open.rlim_max;
num_open.rlim_cur++) {
@@ -355,19 +299,17 @@ static int rlimit(int keep_open)
fd[num_open.rlim_cur] = -1;
num_open.rlim_max = NUM_NEEDED;
- snprintf(strbuff2, sizeof(strbuff2), fmt, num_open.rlim_max);
- snprintf(strbuff1, sizeof(strbuff1), fmt, num_open.rlim_cur);
- snprintf(strbuff, sizeof(strbuff), "fd needed (%s) > "
- "system limit (%s)", strbuff2, strbuff1);
+ sprintf(strbuff2, fmt, num_open.rlim_max);
+ sprintf(strbuff1, fmt, num_open.rlim_cur);
+ sprintf(strbuff, "fd needed (%s) > system limit (%s)",
+ strbuff2, strbuff1);
store_errmsg(strbuff, 0);
fprintf(stderr, "%s\n", msgbuff);
- fprintf(stderr, "closing file descriptors\n");
for (num_open.rlim_cur = 0;
fd[num_open.rlim_cur] >= 0;
num_open.rlim_cur++)
close(fd[num_open.rlim_cur]);
- fprintf(stderr, "file descriptors closed\n");
free(fd);
fd = NULL;
free(memchunk);
@@ -377,64 +319,7 @@ static int rlimit(int keep_open)
}
-#endif /* LIB518 */
-
-#ifdef LIB537
-
- for (num_open.rlim_cur = 1;
- num_open.rlim_cur < num_open.rlim_max;
- num_open.rlim_cur++) {
-
- fd[num_open.rlim_cur] = dup(fd[0]);
-
- if (fd[num_open.rlim_cur] < 0) {
-
- fd[num_open.rlim_cur] = -1;
-
- snprintf(strbuff1, sizeof(strbuff1), fmt, num_open.rlim_cur);
- snprintf(strbuff, sizeof(strbuff), "dup() attempt %s failed", strbuff1);
- fprintf(stderr, "%s\n", strbuff);
-
- snprintf(strbuff1, sizeof(strbuff1), fmt, num_open.rlim_cur + 2);
- snprintf(strbuff, sizeof(strbuff), "system does not support opening "
- "more than %s files" , strbuff1);
- fprintf(stderr, "%s\n", strbuff);
-
- num_open.rlim_max = num_open.rlim_cur + 2 - SAFETY_MARGIN;
-
- num_open.rlim_cur -= num_open.rlim_max;
- snprintf(strbuff1, sizeof(strbuff1), fmt, num_open.rlim_cur);
- snprintf(strbuff, sizeof(strbuff), "closing %s files", strbuff1);
- fprintf(stderr, "%s\n", strbuff);
-
- for (num_open.rlim_cur = num_open.rlim_max;
- fd[num_open.rlim_cur] >= 0;
- num_open.rlim_cur++) {
- close(fd[num_open.rlim_cur]);
- fd[num_open.rlim_cur] = -1;
- }
-
- snprintf(strbuff, sizeof(strbuff1), fmt, num_open.rlim_max);
- fprintf(stderr, "shrinking array for %s file descriptors\n", strbuff);
-
- tmpfd = realloc(fd, sizeof(*fd) * (size_t)(num_open.rlim_max));
- if (!tmpfd) {
- snprintf(strbuff, sizeof(strbuff), "fd, realloc() failed, "
- "errno %d, %s", our_errno(), strerror(our_errno()));
- fprintf(stderr, "%s\n", strbuff);
- }
- else {
- fd = tmpfd;
- tmpfd = NULL;
- }
-
- }
-
- }
-
-#endif /* LIB537 */
-
- snprintf(strbuff, sizeof(strbuff), fmt, num_open.rlim_max);
+ sprintf(strbuff, fmt, num_open.rlim_max);
fprintf(stderr, "%s file descriptors open\n", strbuff);
/* free the chunk of memory we were reserving so that it
@@ -458,7 +343,6 @@ int test(char *URL)
if(!strcmp(URL, "check")) {
/* used by the test script to ask if we can run this test or not */
if(rlimit(FALSE)) {
- fprintf(stderr, "Previous condition prevents running this test\n");
fprintf(stdout, "rlimit problem: %s\n", msgbuff);
return 1;
}
@@ -467,12 +351,9 @@ int test(char *URL)
if (rlimit(TRUE)) {
/* failure */
- fprintf(stderr, "Previous condition aborts this test\n");
return TEST_ERR_MAJOR_BAD;
}
- fprintf(stderr, "running test...\n");
-
/* run the test with the bunch of open file descriptors
and close them all once the test is over */
@@ -500,12 +381,14 @@ int test(char *URL)
return (int)res;
}
-#else
-/* system lacks getrlimit() and/or setrlimit() */
+
+#else /* defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT) */
+
int test(char *URL)
{
(void)URL;
printf("system lacks necessary system function(s)");
- return 1;
+ return 1; /* skip test */
}
-#endif
+
+#endif /* defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT) */
diff --git a/tests/libtest/lib537.c b/tests/libtest/lib537.c
new file mode 100644
index 000000000..7f1d7b3e2
--- /dev/null
+++ b/tests/libtest/lib537.c
@@ -0,0 +1,399 @@
+/*****************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * $Id$
+ */
+
+/*
+ * This source code is used for lib518 and lib537.
+ */
+
+#include "test.h"
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#define SAFETY_MARGIN (10)
+
+#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 = NULL;
+static struct rlimit num_open;
+static char msgbuff[256];
+
+/*
+ * 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 store_errmsg(const char *msg, int err)
+{
+ if (!err)
+ sprintf(msgbuff, "%s", msg);
+ else
+ sprintf(msgbuff, "%s, errno %d, %s", msg, err, strerror(err));
+}
+
+static void close_file_descriptors(void)
+{
+ for (num_open.rlim_cur = 0;
+ num_open.rlim_cur < num_open.rlim_max;
+ num_open.rlim_cur++)
+ if (fd[num_open.rlim_cur] > 0)
+ close(fd[num_open.rlim_cur]);
+ free(fd);
+ fd = NULL;
+}
+
+static int rlimit(int keep_open)
+{
+ int *tmpfd;
+ int nitems, i;
+ int *memchunk = NULL;
+ char *fmt;
+ struct rlimit rl;
+ char strbuff[256];
+ char strbuff1[81];
+ char fmt_u[] = "%u";
+ char fmt_lu[] = "%lu";
+#ifdef HAVE_LONGLONG
+ char fmt_llu[] = "%llu";
+
+ if (sizeof(rl.rlim_max) > sizeof(long))
+ fmt = fmt_llu;
+ else
+#endif
+ fmt = (sizeof(rl.rlim_max) < sizeof(long))?fmt_u:fmt_lu;
+
+ /* get initial open file limits */
+
+ if (getrlimit(RLIMIT_NOFILE, &rl) != 0) {
+ store_errmsg("getrlimit() failed", our_errno());
+ fprintf(stderr, "%s\n", msgbuff);
+ return -1;
+ }
+
+ /* show initial open file limits */
+
+#ifdef RLIM_INFINITY
+ if (rl.rlim_cur == RLIM_INFINITY)
+ strcpy(strbuff, "INFINITY");
+ else
+#endif
+ sprintf(strbuff, fmt, rl.rlim_cur);
+ fprintf(stderr, "initial soft limit: %s\n", strbuff);
+
+#ifdef RLIM_INFINITY
+ if (rl.rlim_max == RLIM_INFINITY)
+ strcpy(strbuff, "INFINITY");
+ else
+#endif
+ sprintf(strbuff, fmt, rl.rlim_max);
+ fprintf(stderr, "initial hard limit: %s\n", strbuff);
+
+ /*
+ * if soft limit and hard limit are different we ask the
+ * system to raise soft limit all the way up to the hard
+ * limit. Due to some other system limit the soft limit
+ * might not be raised up to the hard limit. So from this
+ * point the resulting soft limit is our limit. Trying to
+ * open more than soft limit file descriptors will fail.
+ */
+
+ if (rl.rlim_cur != rl.rlim_max) {
+
+ fprintf(stderr, "raising soft limit up to hard limit\n");
+ rl.rlim_cur = rl.rlim_max;
+ if (setrlimit(RLIMIT_NOFILE, &rl) != 0) {
+ store_errmsg("setrlimit() failed", our_errno());
+ fprintf(stderr, "%s\n", msgbuff);
+ return -2;
+ }
+
+ /* get current open file limits */
+
+ if (getrlimit(RLIMIT_NOFILE, &rl) != 0) {
+ store_errmsg("getrlimit() failed", our_errno());
+ fprintf(stderr, "%s\n", msgbuff);
+ return -3;
+ }
+
+ /* show current open file limits */
+
+#ifdef RLIM_INFINITY
+ if (rl.rlim_cur == RLIM_INFINITY)
+ strcpy(strbuff, "INFINITY");
+ else
+#endif
+ sprintf(strbuff, fmt, rl.rlim_cur);
+ fprintf(stderr, "current soft limit: %s\n", strbuff);
+
+#ifdef RLIM_INFINITY
+ if (rl.rlim_max == RLIM_INFINITY)
+ strcpy(strbuff, "INFINITY");
+ else
+#endif
+ sprintf(strbuff, fmt, rl.rlim_max);
+ fprintf(stderr, "current hard limit: %s\n", strbuff);
+
+ } /* (rl.rlim_cur != rl.rlim_max) */
+
+ /*
+ * test 537 is all about testing libcurl functionality
+ * when the system has nearly exhausted the number of
+ * free file descriptors. Test 537 will try to run with
+ * very few free file descriptors.
+ */
+
+ /*
+ * reserve a chunk of memory before opening file descriptors to
+ * avoid a low memory condition once the file descriptors are
+ * open. System conditions that could make the test fail should
+ * be addressed in the precheck phase. This chunk of memory shall
+ * be always free()ed before exiting the rlimit() function so
+ * that it becomes available to the test.
+ */
+
+ nitems = INT_MAX / sizeof(*memchunk);
+ do {
+ memchunk = malloc(sizeof(*memchunk) * (size_t)nitems);
+ if (!memchunk)
+ nitems /= 2;
+ } while (nitems && !memchunk);
+ if (!memchunk) {
+ store_errmsg("memchunk, malloc() failed", our_errno());
+ fprintf(stderr, "%s\n", msgbuff);
+ return -7;
+ }
+
+ /* initialize it to fight lazy allocation */
+
+ for (i = 0; i < nitems; i++)
+ memchunk[i] = -1;
+
+ /* set the number of file descriptors we will try to open */
+
+#ifdef RLIM_INFINITY
+ if ((rl.rlim_cur > 0) && (rl.rlim_cur != RLIM_INFINITY)) {
+#else
+ if (rl.rlim_cur > 0) {
+#endif
+ /* soft limit minus SAFETY_MARGIN */
+ num_open.rlim_max = rl.rlim_cur - SAFETY_MARGIN;
+ }
+ else {
+ /* biggest file descriptor array size */
+ num_open.rlim_max = INT_MAX / sizeof(*fd);
+ }
+
+ /* verify that we won't overflow size_t in malloc() */
+
+ if (num_open.rlim_max > ((size_t)-1) / sizeof(*fd)) {
+ sprintf(strbuff1, fmt, num_open.rlim_max);
+ sprintf(strbuff, "unable to allocate an array for %s "
+ "file descriptors, would overflow size_t", strbuff1);
+ store_errmsg(strbuff, 0);
+ fprintf(stderr, "%s\n", msgbuff);
+ free(memchunk);
+ return -8;
+ }
+
+ /* allocate array for file descriptors */
+
+ do {
+ sprintf(strbuff, fmt, num_open.rlim_max);
+ fprintf(stderr, "allocating array for %s file descriptors\n", strbuff);
+ fd = malloc(sizeof(*fd) * (size_t)(num_open.rlim_max));
+ if (!fd) {
+ fprintf(stderr, "fd, malloc() failed\n");
+ num_open.rlim_max /= 2;
+ }
+ } while (num_open.rlim_max && !fd);
+ if (!fd) {
+ store_errmsg("fd, malloc() failed", our_errno());
+ fprintf(stderr, "%s\n", msgbuff);
+ free(memchunk);
+ return -9;
+ }
+
+ /* initialize it to fight lazy allocation */
+
+ for (num_open.rlim_cur = 0;
+ num_open.rlim_cur < num_open.rlim_max;
+ num_open.rlim_cur++)
+ fd[num_open.rlim_cur] = -1;
+
+ sprintf(strbuff, fmt, num_open.rlim_max);
+ fprintf(stderr, "trying to open %s file descriptors\n", strbuff);
+
+ /* open a dummy descriptor */
+
+ fd[0] = open(DEV_NULL, O_RDONLY);
+ if (fd[0] < 0) {
+ sprintf(strbuff, "opening of %s failed", DEV_NULL);
+ store_errmsg(strbuff, our_errno());
+ fprintf(stderr, "%s\n", msgbuff);
+ free(fd);
+ fd = NULL;
+ free(memchunk);
+ return -10;
+ }
+
+ /* create a bunch of file descriptors */
+
+ for (num_open.rlim_cur = 1;
+ num_open.rlim_cur < num_open.rlim_max;
+ num_open.rlim_cur++) {
+
+ fd[num_open.rlim_cur] = dup(fd[0]);
+
+ if (fd[num_open.rlim_cur] < 0) {
+
+ fd[num_open.rlim_cur] = -1;
+
+ sprintf(strbuff1, fmt, num_open.rlim_cur);
+ sprintf(strbuff, "dup() attempt %s failed", strbuff1);
+ fprintf(stderr, "%s\n", strbuff);
+
+ sprintf(strbuff1, fmt, num_open.rlim_cur + 2);
+ sprintf(strbuff, "system does not support opening "
+ "more than %s files" , strbuff1);
+ fprintf(stderr, "%s\n", strbuff);
+
+ num_open.rlim_max = num_open.rlim_cur + 2 - SAFETY_MARGIN;
+
+ num_open.rlim_cur -= num_open.rlim_max;
+ sprintf(strbuff1, fmt, num_open.rlim_cur);
+ sprintf(strbuff, "closing %s files", strbuff1);
+ fprintf(stderr, "%s\n", strbuff);
+
+ for (num_open.rlim_cur = num_open.rlim_max;
+ fd[num_open.rlim_cur] >= 0;
+ num_open.rlim_cur++) {
+ close(fd[num_open.rlim_cur]);
+ fd[num_open.rlim_cur] = -1;
+ }
+
+ sprintf(strbuff, fmt, num_open.rlim_max);
+ fprintf(stderr, "shrinking array for %s file descriptors\n", strbuff);
+
+ tmpfd = realloc(fd, sizeof(*fd) * (size_t)(num_open.rlim_max));
+ if (!tmpfd) {
+ sprintf(strbuff, "fd, realloc() failed, "
+ "errno %d, %s", our_errno(), strerror(our_errno()));
+ fprintf(stderr, "%s\n", strbuff);
+ }
+ else {
+ fd = tmpfd;
+ tmpfd = NULL;
+ }
+
+ }
+
+ }
+
+ sprintf(strbuff, fmt, num_open.rlim_max);
+ fprintf(stderr, "%s file descriptors open\n", strbuff);
+
+ /* free the chunk of memory we were reserving so that it
+ becomes becomes available to the test */
+
+ free(memchunk);
+
+ /* 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)) {
+ fprintf(stdout, "rlimit problem: %s\n", msgbuff);
+ return 1;
+ }
+ return 0; /* sure, run this! */
+ }
+
+ if (rlimit(TRUE)) {
+ /* failure */
+ return TEST_ERR_MAJOR_BAD;
+ }
+
+ /* run the test with the bunch of open file descriptors
+ and close them all once the 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 /* defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT) */
+
+int test(char *URL)
+{
+ (void)URL;
+ printf("system lacks necessary system function(s)");
+ return 1; /* skip test */
+}
+
+#endif /* defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT) */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 23:16:19 +0000