glibc/posix/tst-mmap.c

198 lines
4.9 KiB
C
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#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
int
main (void)
{
int result = 0;
FILE *fp;
* catgets/open_catalog.c (__open_catalog): Don't use a value type as the __builtin_expect expression, just the Boolean value. * sysdeps/generic/wordexp.c (parse_glob): int -> size_t for counter. * sysdeps/unix/sysv/linux/opensock.c (__opensock): Likewise. * resolv/res_hconf.c (arg_service_list, parse_line): Likewise. * iconvdata/tst-loading.c (main): Likewise. * catgets/tst-catgets.c (main): Likewise. * stdlib/tst-xpg-basename.c (main): Likewise. * stdlib/tst-bsearch.c (main): Likewise. * stdio-common/test-vfprintf.c (main): Likewise. * stdio-common/tst-rndseek.c (do_test): Likewise. * libio/tst_swprintf.c (main): Likewise. * libio/tst-fgetws.c (main): Likewise. * wcsmbs/tst-mbrtowc.c (check_ascii): Likewise. * time/tst-posixtz.c (main): Likewise. * time/tst-strptime.c (test_tm): Likewise. * time/tst-strptime.c (main): Likewise. * time/tst-getdate.c (main): Likewise. * posix/tst-mmap.c (main): Likewise. * posix/tst-getaddrinfo.c (do_test): Likewise. * io/tst-getcwd.c (do_test): Likewise. * resolv/tst-aton.c (main): Likewise. * inet/tst-network.c (main): Likewise. * libio/tst-fgetws.c (main): Likewise. * sysdeps/posix/sprofil.c (add_region): int -> unsigned int for I. * sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): int -> unsigned int for PTYNO. * stdlib/msort.c (qsort): Add a cast to silence warning. * stdio-common/vfprintf.c (process_string_arg): Likewise. * libio/oldfileops.c (_IO_old_do_write): Likewise. * sysdeps/unix/sysv/linux/getcwd.c (__getcwd): Likewise. * sysdeps/unix/sysv/linux/ttyname.c (ttyname): Likewise. * sysdeps/unix/sysv/linux/gethostid.c (gethostid): Likewise. * argp/argp-fmtstream.c (__argp_fmtstream_printf): Likewise. * nscd/nscd_getgr_r.c (nscd_getgr_r): Likewise. * sysdeps/unix/grantpt.c (grantpt): Likewise. * libio/tst-widetext.c (main): Likewise. * libio/tst-mmap2-eofsync.c (do_test): Likewise. * rt/tst-aio.c (test_file): Likewise. * rt/tst-aio64.c (test_file): Likewise. * resolv/tst-aton.c (main): Likewise. * catgets/catgetsinfo.h (CATGETS_MAGIC): Use U suffix on the constant. * ctype/ctype.c (__ctype_tolower, __ctype_toupper): Cast to int32_t instead of uint32_t in these macros.
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size_t c;
char buf[1000];
int fd;
* catgets/open_catalog.c (__open_catalog): Don't use a value type as the __builtin_expect expression, just the Boolean value. * sysdeps/generic/wordexp.c (parse_glob): int -> size_t for counter. * sysdeps/unix/sysv/linux/opensock.c (__opensock): Likewise. * resolv/res_hconf.c (arg_service_list, parse_line): Likewise. * iconvdata/tst-loading.c (main): Likewise. * catgets/tst-catgets.c (main): Likewise. * stdlib/tst-xpg-basename.c (main): Likewise. * stdlib/tst-bsearch.c (main): Likewise. * stdio-common/test-vfprintf.c (main): Likewise. * stdio-common/tst-rndseek.c (do_test): Likewise. * libio/tst_swprintf.c (main): Likewise. * libio/tst-fgetws.c (main): Likewise. * wcsmbs/tst-mbrtowc.c (check_ascii): Likewise. * time/tst-posixtz.c (main): Likewise. * time/tst-strptime.c (test_tm): Likewise. * time/tst-strptime.c (main): Likewise. * time/tst-getdate.c (main): Likewise. * posix/tst-mmap.c (main): Likewise. * posix/tst-getaddrinfo.c (do_test): Likewise. * io/tst-getcwd.c (do_test): Likewise. * resolv/tst-aton.c (main): Likewise. * inet/tst-network.c (main): Likewise. * libio/tst-fgetws.c (main): Likewise. * sysdeps/posix/sprofil.c (add_region): int -> unsigned int for I. * sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): int -> unsigned int for PTYNO. * stdlib/msort.c (qsort): Add a cast to silence warning. * stdio-common/vfprintf.c (process_string_arg): Likewise. * libio/oldfileops.c (_IO_old_do_write): Likewise. * sysdeps/unix/sysv/linux/getcwd.c (__getcwd): Likewise. * sysdeps/unix/sysv/linux/ttyname.c (ttyname): Likewise. * sysdeps/unix/sysv/linux/gethostid.c (gethostid): Likewise. * argp/argp-fmtstream.c (__argp_fmtstream_printf): Likewise. * nscd/nscd_getgr_r.c (nscd_getgr_r): Likewise. * sysdeps/unix/grantpt.c (grantpt): Likewise. * libio/tst-widetext.c (main): Likewise. * libio/tst-mmap2-eofsync.c (do_test): Likewise. * rt/tst-aio.c (test_file): Likewise. * rt/tst-aio64.c (test_file): Likewise. * resolv/tst-aton.c (main): Likewise. * catgets/catgetsinfo.h (CATGETS_MAGIC): Use U suffix on the constant. * ctype/ctype.c (__ctype_tolower, __ctype_toupper): Cast to int32_t instead of uint32_t in these macros.
2002-09-24 04:24:25 +00:00
unsigned char *ptr;
size_t ps = sysconf (_SC_PAGESIZE);
void *mem;
/* Create a file and put some data in it. */
fp = tmpfile ();
if (fp == NULL)
{
printf ("Cannot create temporary file: %m\n");
return 1;
}
fd = fileno (fp);
for (c = 0; c < sizeof (buf); ++c)
buf[c] = '0' + (c % 10);
for (c = 0; c < 20; ++c)
if (fwrite (buf, 1, sizeof (buf), fp) != sizeof (buf))
{
printf ("`fwrite' failed: %m\n");
return 1;
}
fflush (fp);
assert (ps + 1000 < c * sizeof (buf));
/* First try something which is not allowed: map at an offset which is
not module the pagesize. */
ptr = mmap (NULL, 1000, PROT_READ, MAP_SHARED, fd, ps - 1);
if (ptr != MAP_FAILED)
{
puts ("mapping at offset with mod pagesize != 0 succeeded!");
result = 1;
}
else if (errno != EINVAL && errno != ENOSYS)
{
puts ("wrong error value for mapping at offset with mod pagesize != 0: %m (should be EINVAL)");
result = 1;
}
/* Try the same for mmap64. */
ptr = mmap64 (NULL, 1000, PROT_READ, MAP_SHARED, fd, ps - 1);
if (ptr != MAP_FAILED)
{
puts ("mapping at offset with mod pagesize != 0 succeeded!");
result = 1;
}
else if (errno != EINVAL && errno != ENOSYS)
{
puts ("wrong error value for mapping at offset with mod pagesize != 0: %m (should be EINVAL)");
result = 1;
}
/* And the same for private mapping. */
ptr = mmap (NULL, 1000, PROT_READ, MAP_PRIVATE, fd, ps - 1);
if (ptr != MAP_FAILED)
{
puts ("mapping at offset with mod pagesize != 0 succeeded!");
result = 1;
}
else if (errno != EINVAL && errno != ENOSYS)
{
puts ("wrong error value for mapping at offset with mod pagesize != 0: %m (should be EINVAL)");
result = 1;
}
/* Try the same for mmap64. */
ptr = mmap64 (NULL, 1000, PROT_READ, MAP_PRIVATE, fd, ps - 1);
if (ptr != MAP_FAILED)
{
puts ("mapping at offset with mod pagesize != 0 succeeded!");
result = 1;
}
else if (errno != EINVAL && errno != ENOSYS)
{
puts ("wrong error value for mapping at offset with mod pagesize != 0: %m (should be EINVAL)");
result = 1;
}
/* Get a valid address. */
mem = malloc (2 * ps);
if (mem != NULL)
{
/* Now we map at an address which is not mod pagesize. */
ptr = mmap (mem + 1, 1000, PROT_READ, MAP_SHARED | MAP_FIXED, fd, ps);
if (ptr != MAP_FAILED)
{
puts ("mapping at address with mod pagesize != 0 succeeded!");
result = 1;
}
else if (errno != EINVAL && errno != ENOSYS)
{
puts ("wrong error value for mapping at address with mod pagesize != 0: %m (should be EINVAL)");
result = 1;
}
/* Try the same for mmap64. */
ptr = mmap64 (mem + 1, 1000, PROT_READ, MAP_SHARED | MAP_FIXED, fd, ps);
if (ptr != MAP_FAILED)
{
puts ("mapping at address with mod pagesize != 0 succeeded!");
result = 1;
}
else if (errno != EINVAL && errno != ENOSYS)
{
puts ("wrong error value for mapping at address with mod pagesize != 0: %m (should be EINVAL)");
result = 1;
}
/* And again for MAP_PRIVATE. */
ptr = mmap (mem + 1, 1000, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ps);
if (ptr != MAP_FAILED)
{
puts ("mapping at address with mod pagesize != 0 succeeded!");
result = 1;
}
else if (errno != EINVAL && errno != ENOSYS)
{
puts ("wrong error value for mapping at address with mod pagesize != 0: %m (should be EINVAL)");
result = 1;
}
/* Try the same for mmap64. */
ptr = mmap64 (mem + 1, 1000, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ps);
if (ptr != MAP_FAILED)
{
puts ("mapping at address with mod pagesize != 0 succeeded!");
result = 1;
}
else if (errno != EINVAL && errno != ENOSYS)
{
puts ("wrong error value for mapping at address with mod pagesize != 0: %m (should be EINVAL)");
result = 1;
}
free (mem);
}
/* Now map the memory and see whether the content of the mapped area
is correct. */
ptr = mmap (NULL, 1000, PROT_READ, MAP_SHARED, fd, ps);
if (ptr == MAP_FAILED)
{
if (errno != ENOSYS)
{
printf ("cannot mmap file: %m\n");
result = 1;
}
}
else
{
for (c = ps; c < ps + 1000; ++c)
if (ptr[c - ps] != '0' + (c % 10))
{
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printf ("wrong data mapped at offset %zd\n", c);
result = 1;
}
}
/* And for mmap64. */
ptr = mmap64 (NULL, 1000, PROT_READ, MAP_SHARED, fd, ps);
if (ptr == MAP_FAILED)
{
if (errno != ENOSYS)
{
printf ("cannot mmap file: %m\n");
result = 1;
}
}
else
{
for (c = ps; c < ps + 1000; ++c)
if (ptr[c - ps] != '0' + (c % 10))
{
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printf ("wrong data mapped at offset %zd\n", c);
result = 1;
}
}
/* That's it. */
return result;
}