repos/pEpEngine: src/stringlist.c@9e3d28932e7b

     1 #include <stdlib.h>

     2 #include <string.h>

     3 #include <assert.h>

     5 #include "stringlist.h"

     8 DYNAMIC_API stringlist_t *new_stringlist(const char *value)

9 {

    10     stringlist_t *result = (stringlist_t *) calloc(1, sizeof(stringlist_t));

    11     if (result && value) {

    12         result->value = strdup(value);

    13         assert(result->value);

    14         if (result->value == 0) {

    15             free(result);

    16             return NULL;

    17         }

    18     }

    19     return result;

    20 }

    22 DYNAMIC_API stringlist_t *stringlist_dup(const stringlist_t *src)

    23 {

    24     assert(src);

    25     if (src == NULL)

    26         return NULL;

    28     stringlist_t *dst = new_stringlist(src->value);

    29     if (dst == NULL)

    30         return NULL;

    32     if (src->next) {

    33         dst->next = stringlist_dup(src->next);

    34         if (dst->next == NULL) {

    35             free_stringlist(dst);

    36             return NULL;

    37         }

    38     }

    40     return dst;

    41 }

    43 DYNAMIC_API stringlist_t *stringlist_add(stringlist_t *stringlist, const char *value)

    44 {

    45     assert(value);

    47     if (stringlist == NULL)

    48         return new_stringlist(value);

    50     if (stringlist->next != NULL)

    51         return stringlist_add(stringlist->next, value);

    52     if (stringlist->value == NULL) {

    53         stringlist->value = strdup(value);

    54         assert(stringlist->value);

    55         if (stringlist->value == NULL)

    56             return NULL;

    57         return stringlist;

    58     }

    60     stringlist->next = new_stringlist(value);

    61     assert(stringlist->next);

    62     if (stringlist->next == NULL)

    63         return NULL;

    65     return stringlist->next;

    66 }

    68 DYNAMIC_API stringlist_t *stringlist_append(stringlist_t *stringlist,

    69         stringlist_t *second)

    70 {

    71     assert(stringlist);

    73     if (second == NULL || second->value == NULL)

    74         return stringlist;

    76     stringlist_t *_s = stringlist;

    77     stringlist_t *_s2;

    78     for (_s2 = second; _s2 != NULL; _s2 = _s2->next) {

    79         _s = stringlist_add(_s, _s2->value);

    80         if (_s == NULL)

    81             return NULL;

    82     }

    83     return _s;

    84 }

    86 DYNAMIC_API int stringlist_length(const stringlist_t *stringlist)

    87 {

    88     int len = 1;

    89     stringlist_t *_stringlist;

    91     assert(stringlist);

    93     if (stringlist->value == NULL)

    94         return 0;

    96     for (_stringlist=stringlist->next; _stringlist!=NULL; _stringlist=_stringlist->next)

    97         len += 1;

    99     return len;

   100 }

   102 DYNAMIC_API void free_stringlist(stringlist_t *stringlist)

   103 {

   104     if (stringlist) {

   105         free_stringlist(stringlist->next);

   106         free(stringlist->value);

   107         free(stringlist);

   108     }

   109 }

author	vb
	Wed, 11 Mar 2015 11:52:14 +0100
changeset 98	9e3d28932e7b
child 107	fbef1c59da96
permissions	-rw-r--r--