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@ -133,12 +133,12 @@ void path_free(char** path) {
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Creates a new path pointing to the parent. |
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Be sure to path_free() on the base as well after use. |
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*/ |
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char* path_parent(const char* path) { |
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char* path_parent_copy(const char* path) { |
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if (!path) { |
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return NULL; |
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} |
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char* base_path = NULL; |
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char* parent_path = NULL; |
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char* clean_path = NULL; |
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size_t path_len; |
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size_t last_separator_index = 0; |
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@ -160,20 +160,53 @@ char* path_parent(const char* path) {
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} |
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} |
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if (last_separator_index == 0) { |
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return clean_path; |
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} |
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// allocate memory to hold up to last separator bytes
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base_path = malloc(sizeof(char) * last_separator_index); |
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if (!base_path) { |
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parent_path = malloc(sizeof(char) * last_separator_index); |
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if (!parent_path) { |
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return NULL; |
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} |
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// copy over
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memcpy(base_path, clean_path, sizeof(char) * last_separator_index); |
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base_path[last_separator_index] = '\0'; |
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memcpy(parent_path, clean_path, sizeof(char) * last_separator_index); |
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parent_path[last_separator_index] = '\0'; |
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// free temporary cleaned path
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path_free(&clean_path); |
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return base_path; |
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return parent_path; |
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} |
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/*
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Shrinks given path so that it points to the parent. |
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Reallocates memory. |
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*/ |
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void path_parent(char* path) { |
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if (!path) { |
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return; |
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} |
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path_clean(path); |
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size_t path_len = strlen(path); |
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size_t last_separator_index = 0; |
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// find the last separator index
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for (size_t i = 0; i < path_len; i++) { |
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if (path[i] == PATH_SEPARATOR) { |
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last_separator_index = i; |
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} |
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} |
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if (last_separator_index == 0) { |
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return; |
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} |
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path = realloc(path, sizeof(char) * last_separator_index); |
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path[last_separator_index] = '\0'; |
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} |
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/*
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