LCOV - code coverage report
Current view: top level - source4/heimdal/lib/roken - strpool.c (source / functions) Hit Total Coverage
Test: coverage report for master 6248eab5 Lines: 23 35 65.7 %
Date: 2021-08-25 13:27:56 Functions: 2 3 66.7 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2005 Kungliga Tekniska Högskolan
       3             :  * (Royal Institute of Technology, Stockholm, Sweden).
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions
       8             :  * are met:
       9             :  *
      10             :  * 1. Redistributions of source code must retain the above copyright
      11             :  *    notice, this list of conditions and the following disclaimer.
      12             :  *
      13             :  * 2. Redistributions in binary form must reproduce the above copyright
      14             :  *    notice, this list of conditions and the following disclaimer in the
      15             :  *    documentation and/or other materials provided with the distribution.
      16             :  *
      17             :  * 3. Neither the name of the Institute nor the names of its contributors
      18             :  *    may be used to endorse or promote products derived from this software
      19             :  *    without specific prior written permission.
      20             :  *
      21             :  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
      22             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24             :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
      25             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31             :  * SUCH DAMAGE.
      32             :  */
      33             : 
      34             : #include <config.h>
      35             : 
      36             : #include <stdarg.h>
      37             : #include <stdlib.h>
      38             : #include "roken.h"
      39             : 
      40             : struct rk_strpool {
      41             :     char *str;
      42             :     size_t len;
      43             : };
      44             : 
      45             : /*
      46             :  *
      47             :  */
      48             : 
      49             : ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
      50           0 : rk_strpoolfree(struct rk_strpool *p)
      51             : {
      52           0 :     if (p->str) {
      53           0 :         free(p->str);
      54           0 :         p->str = NULL;
      55             :     }
      56           0 :     free(p);
      57           0 : }
      58             : 
      59             : /*
      60             :  *
      61             :  */
      62             : 
      63             : ROKEN_LIB_FUNCTION struct rk_strpool * ROKEN_LIB_CALL
      64      306215 : rk_strpoolprintf(struct rk_strpool *p, const char *fmt, ...)
      65             : {
      66             :     va_list ap;
      67             :     char *str, *str2;
      68             :     int len;
      69             : 
      70      306215 :     if (p == NULL) {
      71       53827 :         p = malloc(sizeof(*p));
      72       53827 :         if (p == NULL)
      73           0 :             return NULL;
      74       53827 :         p->str = NULL;
      75       53827 :         p->len = 0;
      76             :     }
      77      306215 :     va_start(ap, fmt);
      78      306215 :     len = vasprintf(&str, fmt, ap);
      79      306215 :     va_end(ap);
      80      306215 :     if (str == NULL) {
      81           0 :         rk_strpoolfree(p);
      82           0 :         return NULL;
      83             :     }
      84      306215 :     str2 = realloc(p->str, len + p->len + 1);
      85      306215 :     if (str2 == NULL) {
      86           0 :         rk_strpoolfree(p);
      87           0 :         return NULL;
      88             :     }
      89      306215 :     p->str = str2;
      90      313295 :     memcpy(p->str + p->len, str, len + 1);
      91      306215 :     p->len += len;
      92      306215 :     free(str);
      93      306215 :     return p;
      94             : }
      95             : 
      96             : /*
      97             :  *
      98             :  */
      99             : 
     100             : ROKEN_LIB_FUNCTION char * ROKEN_LIB_CALL
     101       53827 : rk_strpoolcollect(struct rk_strpool *p)
     102             : {
     103             :     char *str;
     104       53827 :     if (p == NULL)
     105           0 :         return strdup("");
     106       53827 :     str = p->str;
     107       52647 :     p->str = NULL;
     108       53827 :     free(p);
     109       53827 :     return str;
     110             : }

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