[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/stdio-common/tst-rndseek.c b/ap/libc/glibc/glibc-2.22/stdio-common/tst-rndseek.c
new file mode 100644
index 0000000..cf53aa4
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/stdio-common/tst-rndseek.c
@@ -0,0 +1,144 @@
+#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;
+}