[b5a3da4] | 1 | #include <assert.h> |
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| 2 | #include <stdlib.h> |
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| 3 | #include <stdio.h> |
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| 4 | #include <string.h> |
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| 5 | |
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| 6 | #include "abac_list.h" |
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| 7 | #include "abac_util.h" |
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| 8 | |
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| 9 | #include "abac_pl.h" |
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| 10 | |
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| 11 | static int debug=0; |
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| 12 | /* |
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| 13 | A.oset <- B |
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| 14 | A.oset <- Obj |
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| 15 | A.oset <- B.oset |
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| 16 | A.oset <- B.role.oset |
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| 17 | */ |
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| 18 | struct _abac_oset_t { |
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| 19 | int is_object; |
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| 20 | union { |
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| 21 | char *principal_name; |
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| 22 | abac_term_t *principal_object; |
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| 23 | }; |
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| 24 | |
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| 25 | char *linked_role_name; |
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| 26 | abac_param_list_t *linked_role_params; |
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| 27 | |
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| 28 | char *oset_name; |
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| 29 | abac_param_list_t *oset_params; |
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| 30 | |
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| 31 | char *string; |
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| 32 | char *linked; |
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| 33 | |
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| 34 | abac_list_t *prereqs; |
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| 35 | int refcount; |
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| 36 | }; |
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| 37 | |
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| 38 | |
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| 39 | int abac_oset_is_object(abac_oset_t *ptr) |
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| 40 | { |
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| 41 | return ptr->is_object; |
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| 42 | } |
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| 43 | |
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| 44 | /** |
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| 45 | * Create a new principal and initialize it. |
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| 46 | */ |
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| 47 | abac_oset_t *abac_oset_principal_new(char *principal) { |
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| 48 | assert(principal != NULL); |
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| 49 | |
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| 50 | if (strlen(principal) == 0) |
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| 51 | return NULL; |
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| 52 | |
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| 53 | abac_oset_t *oset = (abac_oset_t *) abac_xmalloc(sizeof(abac_oset_t)); |
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| 54 | |
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| 55 | oset->is_object =0; |
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| 56 | oset->principal_name = abac_xstrdup(principal); |
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| 57 | oset->oset_name = NULL; |
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| 58 | oset->oset_params = NULL; |
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| 59 | |
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| 60 | oset->linked_role_name = NULL; |
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| 61 | oset->linked_role_params = NULL; |
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| 62 | |
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| 63 | oset->string = abac_xstrdup(principal); |
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| 64 | oset->linked = NULL; |
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| 65 | oset->prereqs = NULL; |
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| 66 | |
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| 67 | oset->refcount = 1; |
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| 68 | |
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| 69 | return oset; |
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| 70 | } |
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| 71 | |
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| 72 | abac_oset_t *abac_oset_object_new(abac_term_t *object) { |
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| 73 | assert(object != NULL); |
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| 74 | |
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| 75 | abac_oset_t *oset = (abac_oset_t *) abac_xmalloc(sizeof(abac_oset_t)); |
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| 76 | |
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| 77 | oset->is_object =1; |
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| 78 | oset->principal_object = object; |
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| 79 | oset->oset_name = NULL; |
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| 80 | oset->oset_params = NULL; |
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| 81 | |
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| 82 | oset->linked_role_name = NULL; |
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| 83 | oset->linked_role_params = NULL; |
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| 84 | |
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| 85 | oset->string = strdup(abac_term_name(object)); |
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| 86 | oset->linked = NULL; |
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| 87 | oset->prereqs = NULL; |
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| 88 | |
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| 89 | oset->refcount = 1; |
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| 90 | |
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| 91 | return oset; |
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| 92 | } |
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| 93 | |
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| 94 | /** |
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| 95 | * Create a new oset and initialize it. |
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| 96 | */ |
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| 97 | abac_oset_t *abac_oset_oset_new(char *principal_name, char *oset_name) { |
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| 98 | assert(principal_name != NULL); |
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| 99 | assert(oset_name != NULL); |
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| 100 | |
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| 101 | abac_oset_t *oset; |
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| 102 | |
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| 103 | if (strlen(principal_name) == 0 || strlen(oset_name) == 0) |
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| 104 | return NULL; |
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| 105 | |
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| 106 | /* MEI */ |
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| 107 | if(debug) |
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| 108 | printf("DEBUG:adding a new oset (%s) to principal (%s)\n", oset_name, principal_name); |
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| 109 | |
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| 110 | oset = abac_xmalloc(sizeof(abac_oset_t)); |
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| 111 | |
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| 112 | oset->is_object=0; |
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| 113 | oset->principal_name = abac_xstrdup(principal_name); |
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| 114 | oset->oset_name = abac_xstrdup(oset_name); |
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| 115 | oset->oset_params = NULL; |
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| 116 | |
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| 117 | oset->linked_role_name = NULL; |
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| 118 | oset->linked_role_params = NULL; |
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| 119 | |
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| 120 | int prin_len = strlen(principal_name); |
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| 121 | int oset_len = strlen(oset_name); |
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| 122 | |
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| 123 | oset->string = abac_xmalloc(prin_len + 1 + oset_len + 1); |
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| 124 | memcpy(oset->string, principal_name, prin_len); |
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| 125 | oset->string[prin_len] = '.'; |
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| 126 | memcpy(oset->string + prin_len + 1, oset_name, oset_len); |
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| 127 | oset->string[prin_len + 1 + oset_len] = 0; |
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| 128 | |
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| 129 | |
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| 130 | oset->linked = NULL; |
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| 131 | oset->prereqs = NULL; |
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| 132 | |
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| 133 | oset->refcount = 1; |
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| 134 | |
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| 135 | return oset; |
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| 136 | } |
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| 137 | |
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| 138 | /** |
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| 139 | * Created a new linking oset and initialize it. |
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| 140 | */ |
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| 141 | abac_oset_t *abac_oset_linking_new(char *principal_name, char *linked_role_name, char *oset_name) { |
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| 142 | assert(principal_name != NULL); |
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| 143 | assert(linked_role_name != NULL); |
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| 144 | assert(oset_name != NULL); |
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| 145 | |
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| 146 | abac_oset_t *oset; |
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| 147 | if (strlen(principal_name) == 0 || strlen(linked_role_name) == 0 || strlen(oset_name) == 0) |
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| 148 | return NULL; |
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| 149 | |
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| 150 | /* MEI */ |
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| 151 | if(debug) |
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| 152 | printf("DEBUG:adding a new linked (%s) to oset(%s) for principal(%s)\n", |
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| 153 | linked_role_name, oset_name, principal_name); |
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| 154 | |
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| 155 | oset = abac_xmalloc(sizeof(abac_oset_t)); |
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| 156 | |
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| 157 | oset->is_object=0; |
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| 158 | oset->principal_name = abac_xstrdup(principal_name); |
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| 159 | |
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| 160 | oset->linked_role_name = abac_xstrdup(linked_role_name); |
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| 161 | oset->linked_role_params = NULL; |
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| 162 | oset->oset_name = abac_xstrdup(oset_name); |
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| 163 | oset->oset_params = NULL; |
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| 164 | |
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| 165 | int prin_len = strlen(principal_name); |
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| 166 | int link_len = strlen(linked_role_name); |
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| 167 | int oset_len = strlen(oset_name); |
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| 168 | |
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| 169 | oset->string = abac_xmalloc(prin_len + 1 + link_len + 1 + oset_len + 1); |
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| 170 | |
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| 171 | memcpy(oset->string, principal_name, prin_len); |
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| 172 | oset->string[prin_len] = '.'; |
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| 173 | memcpy(oset->string + prin_len + 1, linked_role_name, link_len); |
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| 174 | oset->string[prin_len + 1 + link_len] = 0; |
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| 175 | |
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| 176 | // hack: linked role is first two parts of full string |
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| 177 | oset->linked = abac_xstrdup(oset->string); |
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| 178 | |
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| 179 | oset->string[prin_len + 1 + link_len] = '.'; |
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| 180 | memcpy(oset->string + prin_len + 1 + link_len + 1, oset_name, oset_len); |
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| 181 | oset->string[prin_len + 1 + link_len + 1 + oset_len] = 0; |
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| 182 | |
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| 183 | oset->prereqs = NULL; |
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| 184 | oset->refcount = 1; |
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| 185 | |
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| 186 | return oset; |
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| 187 | } |
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| 188 | |
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| 189 | /** |
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| 190 | * Create an intersection oset. |
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| 191 | */ |
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| 192 | abac_oset_t *abac_oset_intersection_new(char *name, abac_list_t *prereqs) { |
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| 193 | abac_oset_t *oset = abac_xmalloc(sizeof(abac_oset_t)); |
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| 194 | |
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| 195 | oset->principal_name = oset->linked_role_name = oset->oset_name = NULL; |
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| 196 | oset->linked_role_params = NULL; |
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| 197 | oset->oset_params = NULL; |
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| 198 | |
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| 199 | oset->linked = NULL; |
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| 200 | oset->string = abac_xstrdup(name); |
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| 201 | oset->prereqs = prereqs; |
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| 202 | |
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| 203 | oset->refcount = 1; |
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| 204 | |
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| 205 | return oset; |
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| 206 | } |
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| 207 | |
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| 208 | /** |
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| 209 | * Decrease a oset's reference count, freeing it when it reaches 0. |
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| 210 | */ |
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| 211 | void abac_oset_free(abac_oset_t *oset) { |
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| 212 | |
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| 213 | if(debug) |
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| 214 | printf("DEBUG:trying to freeing a oset %d\n",(int)oset); |
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| 215 | |
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| 216 | if (oset == NULL) |
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| 217 | return; |
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| 218 | |
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| 219 | if(debug) |
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| 220 | printf("DEBUG:freeing a oset %d\n",(int)oset); |
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| 221 | |
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| 222 | --oset->refcount; |
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| 223 | if (oset->refcount > 0) |
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| 224 | return; |
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| 225 | |
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| 226 | if(oset->principal_name) free(oset->principal_name); |
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| 227 | if(oset->linked_role_name) free(oset->linked_role_name); |
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| 228 | if(oset->oset_name) free(oset->oset_name); |
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| 229 | |
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| 230 | if(oset->string) free(oset->string); |
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| 231 | if(oset->linked) free(oset->linked); |
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| 232 | |
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| 233 | if (oset->oset_params != NULL) { |
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| 234 | abac_param_list_free(oset->oset_params); |
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| 235 | } |
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| 236 | |
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| 237 | if (oset->linked_role_params != NULL) { |
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| 238 | abac_param_list_free(oset->linked_role_params); |
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| 239 | } |
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| 240 | |
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| 241 | if (oset->prereqs != NULL) { |
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| 242 | abac_oset_t *cur; |
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| 243 | abac_list_foreach(oset->prereqs, cur, |
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| 244 | abac_oset_free(cur); |
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| 245 | ); |
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| 246 | abac_list_free(oset->prereqs); |
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| 247 | } |
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| 248 | |
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| 249 | free(oset); |
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| 250 | } |
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| 251 | |
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| 252 | abac_oset_t *abac_oset_oset_add_param(abac_oset_t *oset, abac_term_t *param) |
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| 253 | { |
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| 254 | if(oset->oset_params == NULL) { |
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| 255 | oset->oset_params=abac_param_list_new(param); |
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| 256 | } else { |
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| 257 | abac_param_list_add_term(oset->oset_params, param); |
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| 258 | } |
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| 259 | return oset; |
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| 260 | } |
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| 261 | |
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| 262 | abac_oset_t *abac_oset_add_intersecting_oset(abac_oset_t *oset, abac_oset_t *noset) |
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| 263 | { |
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| 264 | abac_list_add(oset->prereqs, noset); |
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| 265 | return oset; |
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| 266 | } |
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| 267 | |
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| 268 | abac_oset_t *abac_oset_oset_add_linked_param(abac_oset_t *oset, abac_term_t *param) |
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| 269 | { |
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| 270 | if(oset->linked_role_params == NULL) { |
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| 271 | oset->linked_role_params=abac_param_list_new(param); |
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| 272 | } else { |
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| 273 | abac_param_list_add_term(oset->linked_role_params, param); |
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| 274 | } |
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| 275 | return oset; |
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| 276 | } |
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| 277 | |
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| 278 | |
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| 279 | /** |
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| 280 | * Create a non-intersecting oset from a string. Handles principals, osets, |
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| 281 | * and linking osets. |
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| 282 | */ |
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| 283 | static abac_oset_t *_abac_single_oset_from_string(char *string) { |
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| 284 | int num_dots = 0; |
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| 285 | char *dot = string; |
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| 286 | abac_oset_t *ret = NULL; |
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| 287 | |
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| 288 | // count the dots |
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| 289 | while ((dot = strchr(dot, '.')) != NULL) { |
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| 290 | ++num_dots; |
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| 291 | ++dot; |
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| 292 | } |
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| 293 | |
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| 294 | // no dots: easy case, principal |
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| 295 | if (num_dots == 0) |
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| 296 | ret = abac_oset_principal_new(string); |
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| 297 | |
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| 298 | // a oset has exactly 1 dot |
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| 299 | else if (num_dots == 1) { |
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| 300 | char *principal = string; |
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| 301 | |
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| 302 | // terminate the principal part |
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| 303 | dot = strchr(principal, '.'); |
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| 304 | *dot = 0; |
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| 305 | |
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| 306 | // oset name comes after the dot |
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| 307 | char *oset_name = dot + 1; |
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| 308 | |
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| 309 | // create the oset (if possible) |
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| 310 | ret = abac_oset_oset_new(string, oset_name); |
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| 311 | } |
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| 312 | |
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| 313 | // a linked oset has 2 dots |
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| 314 | else if (num_dots == 2) { |
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| 315 | char *principal = string; |
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| 316 | |
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| 317 | // terminate the principal part |
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| 318 | dot = strchr(principal, '.'); |
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| 319 | *dot = 0; |
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| 320 | |
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| 321 | // linked name is next, terminate it |
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| 322 | char *linked = dot + 1; |
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| 323 | dot = strchr(linked, '.'); |
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| 324 | *dot = 0; |
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| 325 | |
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| 326 | // oset name is last, already terminated |
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| 327 | char *oset_name = dot + 1; |
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| 328 | |
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| 329 | ret = abac_oset_linking_new(principal, linked, oset_name); |
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| 330 | } |
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| 331 | |
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| 332 | // more than two dots: return NULL |
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| 333 | |
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| 334 | return ret; |
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| 335 | } |
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| 336 | |
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| 337 | /** |
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| 338 | * Create a oset from a string. Handles intersecting and normal osets. |
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| 339 | */ |
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| 340 | abac_oset_t *abac_oset_from_string(char *string) { |
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| 341 | abac_list_t *prereqs = NULL; |
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| 342 | abac_oset_t *ret = NULL, *oset; |
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| 343 | char *osets[256]; |
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| 344 | int num_osets, i; |
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| 345 | |
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| 346 | char *original = string; |
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| 347 | |
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| 348 | // make a copy so we can mess with it |
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| 349 | string = abac_xstrdup(string); |
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| 350 | |
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| 351 | // split the string (in case of an intersection num_osets > 1) |
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| 352 | abac_split(string, " & ", osets, &num_osets); |
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| 353 | |
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| 354 | // normal oset: |
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| 355 | if (num_osets == 1) |
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| 356 | ret = _abac_single_oset_from_string(string); |
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| 357 | |
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| 358 | else { |
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| 359 | prereqs = abac_list_new(); |
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| 360 | |
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| 361 | for (i = 0; i < num_osets; ++i) { |
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| 362 | // make sure the tail oset is valid |
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| 363 | oset = abac_oset_from_string(osets[i]); |
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| 364 | if (oset == NULL) |
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| 365 | goto error; |
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| 366 | |
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| 367 | abac_list_add(prereqs, oset); |
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| 368 | } |
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| 369 | ret = abac_oset_intersection_new(original, prereqs); |
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| 370 | } |
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| 371 | |
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| 372 | free(string); |
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| 373 | return ret; |
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| 374 | |
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| 375 | error: |
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| 376 | |
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| 377 | if (prereqs != NULL) { |
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| 378 | abac_oset_t *cur; |
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| 379 | abac_list_foreach(prereqs, cur, |
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| 380 | abac_oset_free(cur); |
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| 381 | ); |
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| 382 | abac_list_free(prereqs); |
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| 383 | } |
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| 384 | free(string); |
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| 385 | return NULL; |
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| 386 | } |
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| 387 | |
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| 388 | |
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| 389 | /** |
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| 390 | * Increase a oset's reference count. |
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| 391 | */ |
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| 392 | abac_oset_t *abac_oset_dup(abac_oset_t *oset) { |
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| 393 | assert(oset != NULL); |
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| 394 | |
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| 395 | ++oset->refcount; |
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| 396 | return oset; |
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| 397 | } |
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| 398 | |
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| 399 | /** |
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| 400 | * True if a oset is a principal. |
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| 401 | */ |
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| 402 | int abac_oset_is_principal(abac_oset_t *oset) { |
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| 403 | assert(oset != NULL); |
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| 404 | return oset->oset_name == NULL && oset->linked_role_name == NULL && oset->prereqs == NULL; |
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| 405 | } |
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| 406 | |
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| 407 | /** |
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| 408 | * True if a oset is a oset. |
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| 409 | */ |
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| 410 | int abac_oset_is_oset(abac_oset_t *oset) { |
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| 411 | assert(oset != NULL); |
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| 412 | return oset->oset_name != NULL && oset->linked_role_name == NULL && oset->prereqs == NULL; |
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| 413 | } |
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| 414 | |
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| 415 | /** |
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| 416 | * True if a oset is a linked oset. |
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| 417 | */ |
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| 418 | int abac_oset_is_linking(abac_oset_t *oset) { |
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| 419 | assert(oset != NULL); |
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| 420 | return oset->linked_role_name != NULL; |
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| 421 | } |
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| 422 | |
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| 423 | /** |
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| 424 | * True if a oset is an intersection. |
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| 425 | */ |
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| 426 | int abac_oset_is_intersection(abac_oset_t *oset) { |
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| 427 | assert(oset != NULL); |
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| 428 | return oset->prereqs != NULL; |
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| 429 | } |
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| 430 | |
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| 431 | char *abac_oset_intersecting_string_with_condition(abac_oset_t *oset) |
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| 432 | { |
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| 433 | assert(oset != NULL); |
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| 434 | char *tmp=NULL; |
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| 435 | if (oset->prereqs != NULL) { |
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| 436 | abac_oset_t *cur; |
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| 437 | abac_list_foreach(oset->prereqs, cur, |
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| 438 | char *ntmp=abac_oset_string_with_condition(cur); |
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| 439 | if(tmp==NULL) { |
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| 440 | asprintf(&tmp,"%s",ntmp); |
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| 441 | } else { |
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| 442 | asprintf(&tmp,"%s & %s",tmp, ntmp); |
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| 443 | } |
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| 444 | ); |
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| 445 | } |
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| 446 | return tmp; |
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| 447 | } |
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| 448 | /** |
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| 449 | * Returns the string representation of the oset. |
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| 450 | * principal.oset(params..) |
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| 451 | */ |
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| 452 | char *abac_oset_string_with_condition(abac_oset_t *oset) { |
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| 453 | assert(oset != NULL); |
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| 454 | |
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| 455 | if(abac_oset_is_intersection(oset)) { |
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| 456 | return abac_oset_intersecting_string_with_condition(oset); |
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| 457 | } |
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| 458 | |
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| 459 | char *tmp=NULL; |
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| 460 | /* use cn for now, easy to debug XXX */ |
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| 461 | char *principal_name; |
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| 462 | if(abac_oset_is_object(oset)) { |
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| 463 | principal_name = abac_oset_object_cn(oset); |
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| 464 | } else principal_name = abac_oset_principal_cn(oset); |
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| 465 | char *oset_name= oset->oset_name; |
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| 466 | char *linked_role_name = oset->linked_role_name; |
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| 467 | char *params_string=NULL; |
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| 468 | char *linked_params_string=NULL; |
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| 469 | |
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| 470 | int len = 0; |
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| 471 | if(principal_name) |
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| 472 | len=len+strlen(principal_name)+1; |
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| 473 | if(oset_name) |
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| 474 | len = len+strlen(oset_name)+1; |
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| 475 | if(linked_role_name) |
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| 476 | len = len+strlen(linked_role_name)+1; |
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| 477 | |
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| 478 | if(oset->oset_params) { |
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| 479 | params_string=abac_param_list_string_with_condition(oset->oset_params); |
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| 480 | len = len+strlen(params_string)+3; |
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| 481 | } |
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| 482 | if(oset->linked_role_params) { |
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| 483 | linked_params_string=abac_param_list_string_with_condition(oset->linked_role_params); |
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| 484 | len = len+strlen(linked_params_string)+3; |
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| 485 | } |
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| 486 | |
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| 487 | /* principal */ |
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| 488 | /* principal.oset */ |
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| 489 | /* principal.oset(params_string) */ |
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| 490 | /* principal.linked_role(linked_params_string).oset(params_string) */ |
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| 491 | tmp = abac_xmalloc(len); |
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| 492 | |
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| 493 | if(principal_name) |
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| 494 | sprintf(tmp,"%s",principal_name); |
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| 495 | |
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| 496 | if(linked_role_name) { |
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| 497 | strcat(tmp,"."); |
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| 498 | strcat(tmp,linked_role_name); |
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| 499 | } |
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| 500 | if(linked_params_string) { |
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| 501 | strcat(tmp,"("); |
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| 502 | strcat(tmp,linked_params_string); |
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| 503 | strcat(tmp,")"); |
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| 504 | } |
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| 505 | if(oset_name) { |
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| 506 | strcat(tmp,"."); |
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| 507 | strcat(tmp,oset_name); |
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| 508 | } |
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| 509 | if(params_string) { |
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| 510 | strcat(tmp,"("); |
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| 511 | strcat(tmp,params_string); |
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| 512 | strcat(tmp,")"); |
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| 513 | } |
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| 514 | |
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| 515 | if(linked_params_string) free(linked_params_string); |
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| 516 | if(params_string) free(params_string); |
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| 517 | return tmp; |
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| 518 | } |
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| 519 | |
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| 520 | void abac_print_oset_string_with_condition(abac_oset_t *oset,FILE *fp) |
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| 521 | { |
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| 522 | char *string=abac_oset_string_with_condition(oset); |
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| 523 | if(fp==NULL) |
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| 524 | printf("%s",string); |
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| 525 | else fprintf(fp,"%s",string); |
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| 526 | } |
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| 527 | |
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| 528 | /** |
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| 529 | * Returns the name of a oset. If the oset is A.r1 then return r1. If the oset |
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| 530 | * is A.r1.r2 then return r2. |
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| 531 | */ |
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| 532 | char *abac_oset_oset_name(abac_oset_t *oset) { |
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| 533 | assert(oset != NULL); |
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| 534 | return oset->oset_name; |
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| 535 | } |
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| 536 | |
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| 537 | char *abac_oset_oset_param_string(abac_oset_t *oset) { |
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| 538 | assert(oset != NULL); |
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| 539 | if(oset->oset_params) { |
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| 540 | return abac_param_list_string(oset->oset_params); |
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| 541 | } |
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| 542 | return NULL; |
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| 543 | } |
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| 544 | |
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| 545 | /** |
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| 546 | * Returns the linked part of a linking oset. For instance, if the oset is |
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| 547 | * A.r1.r2, this returns A.r1. |
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| 548 | */ |
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| 549 | char *abac_oset_linked_role(abac_oset_t *oset) { |
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| 550 | assert(oset != NULL); |
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| 551 | return oset->linked_role_name; |
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| 552 | } |
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| 553 | |
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| 554 | /** |
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| 555 | * Returns the principal part of a oset. The stuff before the first dot. |
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| 556 | */ |
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| 557 | char *abac_oset_principal(abac_oset_t *oset) { |
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| 558 | assert(oset != NULL); |
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| 559 | return oset->principal_name; |
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| 560 | } |
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| 561 | |
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| 562 | char *abac_oset_principal_cn(abac_oset_t *oset) { |
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| 563 | assert(oset != NULL); |
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| 564 | return abac_cn_with_sha(oset->principal_name); |
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| 565 | } |
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| 566 | |
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| 567 | char *abac_oset_object_cn(abac_oset_t *oset) { |
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| 568 | assert(oset != NULL && oset->is_object); |
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| 569 | abac_term_t *obj=oset->principal_object; |
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[c586a3c] | 570 | char *tmp=abac_term_name(obj); |
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[b5a3da4] | 571 | return abac_term_name(obj); |
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| 572 | } |
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| 573 | |
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| 574 | abac_condition_t *abac_oset_object_constraint(abac_oset_t *oset) { |
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| 575 | assert(oset != NULL && oset->is_object); |
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| 576 | abac_term_t *obj=oset->principal_object; |
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| 577 | return abac_term_constraint(obj); |
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| 578 | } |
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| 579 | /** |
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| 580 | * Returns the prereqs of an intersection. |
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| 581 | */ |
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| 582 | abac_list_t *abac_oset_prereqs(abac_oset_t *oset) { |
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| 583 | assert(oset != NULL); |
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| 584 | return oset->prereqs; |
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| 585 | } |
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| 586 | |
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| 587 | abac_param_list_t *abac_oset_linked_role_params(abac_oset_t *oset) { |
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| 588 | assert(oset != NULL); |
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| 589 | return oset->linked_role_params; |
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| 590 | } |
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| 591 | |
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| 592 | abac_param_list_t *abac_oset_oset_params(abac_oset_t *oset) { |
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| 593 | assert(oset != NULL); |
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| 594 | return oset->oset_params; |
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| 595 | } |
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| 596 | |
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| 597 | |
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| 598 | /** |
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| 599 | * Build an attribute key from head and tail osets. Static. |
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| 600 | */ |
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| 601 | #define ROLE_SEPARATOR " <- " |
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| 602 | char *abac_oset_attr_key(abac_oset_t *head_oset, abac_oset_t *tail_oset) { |
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| 603 | char *head = abac_oset_string_with_condition(head_oset); |
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| 604 | int head_len = strlen(head); |
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| 605 | |
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| 606 | char *tail = abac_oset_string_with_condition(tail_oset); |
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| 607 | int tail_len = strlen(tail); |
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| 608 | |
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| 609 | int sep_len = sizeof(ROLE_SEPARATOR) - 1; |
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| 610 | |
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| 611 | // "head <- tail" |
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| 612 | char *ret = abac_xmalloc(head_len + tail_len + sep_len + 1); |
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| 613 | memcpy(ret, head, head_len); |
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| 614 | memcpy(ret + head_len, ROLE_SEPARATOR, sep_len); |
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| 615 | memcpy(ret + head_len + sep_len, tail, tail_len); |
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| 616 | ret[head_len + sep_len + tail_len] = 0; |
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| 617 | |
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| 618 | return ret; |
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| 619 | } |
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