1  #include <stdio.h>
       2  #include <stdlib.h>
       3  #include <locale.h>
       4  #include <string.h>
       5  #include <libc-diag.h>
       6  
       7  
       8  static int
       9  do_test (void)
      10  {
      11    char buf[100];
      12    int result = 0;
      13  
      14    if (sprintf (buf, "%.0ls", L"foo") != 0
      15        || strlen (buf) != 0)
      16      {
      17        puts ("sprintf (buf, \"%.0ls\", L\"foo\") produced some output");
      18        result = 1;
      19      }
      20  
      21  #define SIZE (1024*70000)
      22  #define STR(x) #x
      23  
      24    char *dst = malloc (SIZE + 1);
      25  
      26    if (dst == NULL)
      27      {
      28        puts ("memory allocation failure");
      29        result = 1;
      30      }
      31    else
      32      {
      33        sprintf (dst, "%*s", SIZE, "");
      34        if (strnlen (dst, SIZE + 1) != SIZE)
      35  	{
      36  	  puts ("sprintf (dst, \"%*s\", " STR(SIZE) ", \"\") did not produce enough output");
      37  	  result = 1;
      38  	}
      39        free (dst);
      40      }
      41  
      42    if (sprintf (buf, "%1$d%3$.*2$s%4$d", 7, 67108863, "x", 8) != 3
      43        || strcmp (buf, "7x8") != 0)
      44      {
      45        printf ("sprintf (buf, \"%%1$d%%3$.*2$s%%4$d\", 7, 67108863, \"x\", 8) produced `%s' output", buf);
      46        result = 1;
      47      }
      48  
      49    /* We are testing a corner case of the sprintf format string here.  */
      50    DIAG_PUSH_NEEDS_COMMENT;
      51    DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");
      52    int n = sprintf (buf, "%67108863.16\"%d", 7);
      53    DIAG_POP_NEEDS_COMMENT;
      54  
      55    if (n != 14 || strcmp (buf, "%67108863.16\"7") != 0)
      56      {
      57        printf ("sprintf (buf, \"%%67108863.16\\\"%%d\", 7) produced `%s' output",
      58                buf);
      59        result = 1;
      60      }
      61  
      62    /* We are testing a corner case of the sprintf format string here.  */
      63    DIAG_PUSH_NEEDS_COMMENT;
      64    DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");
      65    n = sprintf (buf, "%*\"%d", 0x3ffffff, 7);
      66    DIAG_POP_NEEDS_COMMENT;
      67  
      68    if (n != 11 || strcmp (buf, "%67108863\"7") != 0)
      69      {
      70        printf ("sprintf (buf, \"%%*\\\"%%d\", 0x3ffffff, 7) produced `%s' output", buf);
      71        result = 1;
      72      }
      73  
      74    if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
      75      {
      76        puts ("cannot set locale");
      77        result = 1;
      78      }
      79    else if (sprintf (buf, "%.8s\n", "Foo: \277") != 7
      80  	   || strcmp (buf, "Foo: \277\n") != 0)
      81      {
      82        printf ("sprintf (buf, \"%%.8s\\n\", \"Foo: \\277\") produced '%s' output\n", buf);
      83        result = 1;
      84      }
      85  
      86    return result;
      87  }
      88  
      89  #define TEST_FUNCTION do_test ()
      90  #include "../test-skeleton.c"