aboutsummaryrefslogtreecommitdiff
path: root/stdio-common/tst-rndseek.c
diff options
context:
space:
mode:
Diffstat (limited to 'stdio-common/tst-rndseek.c')
-rw-r--r--stdio-common/tst-rndseek.c144
1 files changed, 0 insertions, 144 deletions
diff --git a/stdio-common/tst-rndseek.c b/stdio-common/tst-rndseek.c
deleted file mode 100644
index cf53aa48e0..0000000000
--- a/stdio-common/tst-rndseek.c
+++ /dev/null
@@ -1,144 +0,0 @@
-#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 ()
-#define TIMEOUT 10
-
-#include "../test-skeleton.c"
-
-
-static int
-fp_test (const char *name, FILE *fp)
-{
- 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);
- 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);
- 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);
- result = 1;
- break;
- }
- }
- while (--rounds > 0);
-
- fclose (fp);
-
- return result;
-}
-
-
-static int
-do_test (void)
-{
- int fd;
- FILE *fp;
- size_t i;
- 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;
-
- /* 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)
- {
- printf ("%zd: '%c' vs '%c'\n", i, ch1, ch2);
- return 1;
- }
- }
-
- result = fp_test ("fdopen(\"r\")", fp);
-
- fp = fopen (fname, "r");
- result |= fp_test ("fopen(\"r\")", fp);
-
- fp = fopen64 (fname, "r");
- result |= fp_test ("fopen64(\"r\")", fp);
-
- /* The "rw" mode will prevent the mmap-using code from being used. */
- fp = fdopen (fd, "rw");
- result = fp_test ("fdopen(\"rw\")", fp);
-
- fp = fopen (fname, "rw");
- result |= fp_test ("fopen(\"rw\")", fp);
-
- fp = fopen64 (fname, "rw");
- result |= fp_test ("fopen64(\"rw\")", fp);
-
- return result;
-}