LCOV - code coverage report
Current view: directory - src/trusted/platform_qualify - kernel_version.h (source / functions) Found Hit Coverage
Test: coverage.lcov Lines: 38 35 92.1 %
Date: 2014-06-18 Functions: 0 0 -

       1                 : /*
       2                 :  * Copyright (c) 2011 The Native Client Authors. All rights reserved.
       3                 :  * Use of this source code is governed by a BSD-style license that can be
       4                 :  * found in the LICENSE file.
       5                 :  */
       6                 : 
       7                 : #ifndef NATIVE_CLIENT_SRC_TRUSTED_PLATFORM_QUALIFY_KERNEL_VERSION_H_
       8                 : #define NATIVE_CLIENT_SRC_TRUSTED_PLATFORM_QUALIFY_KERNEL_VERSION_H_
       9                 : 
      10                 : #include <stdlib.h>
      11                 : #include <string.h>
      12                 : #include "native_client/src/include/nacl_base.h"
      13                 : 
      14                 : EXTERN_C_BEGIN
      15                 : 
      16                 : /*
      17                 :  * Returns 1 on success and fills num1.num2.num3 appropriately.
      18                 :  */
      19              25 : static INLINE int NaClParseKernelVersion(const char *version, int *num1,
      20              25 :                                          int *num2, int *num3) {
      21              25 :   char *next;
      22              25 :   *num1 = strtol(version, &next, 10);
      23              50 :   if (next == NULL || *next != '.') {
      24               3 :     return 0;
      25                 :   }
      26              22 :   *num2 = strtol(next + 1, &next, 10);
      27              22 :   if (next == NULL) {
      28               0 :     return 0;
      29                 :   }
      30              22 :   if (*next != '.') {
      31               8 :     *num3 = 0;
      32               8 :     return 1;
      33                 :   }
      34              14 :   *num3 = strtol(next + 1, &next, 10);
      35              14 :   if (next == NULL) {
      36               0 :     return 0;
      37                 :   }
      38                 :   /* Ignore the rest of the version string. */
      39              14 :   return 1;
      40              25 : }
      41                 : 
      42                 : /*
      43                 :  * Returns 1 on success and fills res with -1, 0 or 1,
      44                 :  * if version1 <, == or > version2 accordingly.
      45                 :  */
      46               8 : static INLINE int NaClCompareKernelVersions(const char *version1,
      47               8 :                                             const char *version2,
      48               8 :                                             int *res) {
      49               8 :   int i;
      50               8 :   int num1[3];
      51               8 :   int num2[3];
      52               8 :   if (!NaClParseKernelVersion(version1, &num1[0], &num1[1], &num1[2])) {
      53               1 :     return 0;
      54                 :   }
      55               7 :   if (!NaClParseKernelVersion(version2, &num2[0], &num2[1], &num2[2])) {
      56               0 :     return 0;
      57                 :   }
      58              38 :   for (i = 0; i < 3; i++) {
      59              17 :     if (num1[i] < num2[i]) {
      60               3 :       *res = -1;
      61               3 :       return 1;
      62                 :     }
      63              14 :     if (num1[i] > num2[i]) {
      64               2 :       *res = 1;
      65               2 :       return 1;
      66                 :     }
      67              12 :   }
      68               2 :   *res = 0;
      69               2 :   return 1;
      70               8 : }
      71                 : 
      72                 : EXTERN_C_END
      73                 : 
      74                 : #endif  /* NATIVE_CLIENT_SRC_TRUSTED_PLATFORM_QUALIFY_KERNEL_VERSION_H_ */

Generated by: LCOV version 1.7