LCOV - code coverage report
Current view: top level - lib/libc/minimal/source/string - strstr.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 10 0.0 %
Date: 2022-08-18 11:36:24 Functions: 0 0 -
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 8 0.0 %

           Branch data     Line data    Source code
       1                 :            : /* SPDX-License-Identifier: BSD-4-Clause-UC */
       2                 :            : 
       3                 :            : /*-
       4                 :            :  * Copyright (c) 1990, 1993
       5                 :            :  *      The Regents of the University of California.  All rights reserved.
       6                 :            :  *
       7                 :            :  * This code is derived from software contributed to Berkeley by
       8                 :            :  * Chris Torek.
       9                 :            :  *
      10                 :            :  * Redistribution and use in source and binary forms, with or without
      11                 :            :  * modification, are permitted provided that the following conditions
      12                 :            :  * are met:
      13                 :            :  * 1. Redistributions of source code must retain the above copyright
      14                 :            :  *    notice, this list of conditions and the following disclaimer.
      15                 :            :  * 2. Redistributions in binary form must reproduce the above copyright
      16                 :            :  *    notice, this list of conditions and the following disclaimer in the
      17                 :            :  *    documentation and/or other materials provided with the distribution.
      18                 :            :  * 3. All advertising materials mentioning features or use of this software
      19                 :            :  *    must display the following acknowledgment:
      20                 :            :  *      This product includes software developed by the University of
      21                 :            :  *      California, Berkeley and its contributors.
      22                 :            :  * 4. Neither the name of the University nor the names of its contributors
      23                 :            :  *    may be used to endorse or promote products derived from this software
      24                 :            :  *    without specific prior written permission.
      25                 :            :  *
      26                 :            :  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      27                 :            :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      28                 :            :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      29                 :            :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      30                 :            :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      31                 :            :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      32                 :            :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      33                 :            :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      34                 :            :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      35                 :            :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      36                 :            :  * SUCH DAMAGE.
      37                 :            :  */
      38                 :            : 
      39                 :            : #include <string.h>
      40                 :            : 
      41                 :            : /*
      42                 :            :  * Find the first occurrence of find in s.
      43                 :            :  */
      44                 :            : char *
      45                 :            : strstr(const char *s, const char *find)
      46                 :            : {
      47                 :            :         char c, sc;
      48                 :            :         size_t len;
      49                 :            : 
      50                 :          0 :         c = *find++;
      51         [ #  # ]:          0 :         if (c != 0) {
      52                 :          0 :                 len = strlen(find);
      53                 :            :                 do {
      54                 :            :                         do {
      55                 :          0 :                                 sc = *s++;
      56         [ #  # ]:          0 :                                 if (sc == 0) {
      57                 :          0 :                                         return NULL;
      58                 :            :                                 }
      59         [ #  # ]:          0 :                         } while (sc != c);
      60         [ #  # ]:          0 :                 } while (strncmp(s, find, len) != 0);
      61                 :          0 :         s--;
      62                 :            :         }
      63                 :          0 :         return (char *)s;
      64                 :            : }

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