glibc/stdio-common/tst-rndseek.c

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#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static char fname[] = "/tmp/rndseek.XXXXXX";
static char tempdata[65 * 1024];
static int do_test (void);
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
static int
fp_test (const char *name, FILE *fp)
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{
int result = 0;
int rounds = 10000;
do
{
int idx = random () % (sizeof (tempdata) - 2);
char ch1;
char ch2;
if (fseek (fp, idx, SEEK_SET) != 0)
{
printf ("%s: %d: fseek failed: %m\n", name, rounds);
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result = 1;
break;
}
ch1 = fgetc_unlocked (fp);
ch2 = tempdata[idx];
if (ch1 != ch2)
{
printf ("%s: %d: character at index %d not what is expected ('%c' vs '%c')\n",
name, rounds, idx, ch1, ch2);
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result = 1;
break;
}
ch1 = fgetc (fp);
ch2 = tempdata[idx + 1];
if (ch1 != ch2)
{
printf ("%s: %d: character at index %d not what is expected ('%c' vs '%c')\n",
name, rounds, idx + 1, ch1, ch2);
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result = 1;
break;
}
}
while (--rounds > 0);
fclose (fp);
return result;
}
static int
do_test (void)
{
int fd;
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 i;
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int result;
fd = mkstemp (fname);
if (fd == -1)
{
printf ("cannot open temporary file: %m\n");
return 1;
}
/* Make sure the file gets removed. */
add_temp_file (fname);
/* Repeatability demands this. */
srandom (42);
/* First create some temporary data. */
for (i = 0; i < sizeof (tempdata); ++i)
tempdata[i] = 'a' + random () % 26;
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/* Write this data to a file. */
if (TEMP_FAILURE_RETRY (write (fd, tempdata, sizeof (tempdata)))
!= sizeof (tempdata))
{
printf ("cannot wrote data to temporary file: %m\n");
return 1;
}
/* Now try reading the data. */
fp = fdopen (dup (fd), "r");
if (fp == NULL)
{
printf ("cannot duplicate temporary file descriptor: %m\n");
return 1;
}
rewind (fp);
for (i = 0; i < sizeof (tempdata); ++i)
{
int ch0 = fgetc (fp);
char ch1 = ch0;
char ch2 = tempdata[i];
if (ch0 == EOF)
{
puts ("premature end of file while reading data");
return 1;
}
if (ch1 != ch2)
{
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printf ("%zd: '%c' vs '%c'\n", i, ch1, ch2);
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return 1;
}
}
result = fp_test ("fdopen(\"r\")", fp);
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fp = fopen (fname, "r");
result |= fp_test ("fopen(\"r\")", fp);
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fp = fopen64 (fname, "r");
result |= fp_test ("fopen64(\"r\")", fp);
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/* The "rw" mode will prevent the mmap-using code from being used. */
fp = fdopen (fd, "rw");
result = fp_test ("fdopen(\"rw\")", fp);
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fp = fopen (fname, "rw");
result |= fp_test ("fopen(\"rw\")", fp);
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fp = fopen64 (fname, "rw");
result |= fp_test ("fopen64(\"rw\")", fp);
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return result;
}