CoreFW  Check-in [384257c4cc]

Overview
Comment:Work around malloc(0) returning NULL.
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SHA3-256: 384257c4ccd990817ac28dad36597833d4f2312e5dc45eda9aea14c5cabbbc06
User & Date: js on 2012-09-30 03:20:09
Other Links: manifest | tags
Context
2012-09-30
03:40
Allow appending NULL to strings. check-in: 1adab684f6 user: js tags: trunk
03:20
Work around malloc(0) returning NULL. check-in: 384257c4cc user: js tags: trunk
02:57
Fix a bug in refpool. check-in: d7b09f1d63 user: js tags: trunk
Changes
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Modified src/stream.c from [316847ca63] to [f662e79d40].

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				ret = cfw_create(cfw_string, NULL);
				if (ret == NULL) {
					free(ret_str);
					return NULL;
				}
				cfw_string_set_nocopy(ret, ret_str, ret_len);

				new_cache = malloc(stream->cache_len - i - 1);
				if (new_cache == NULL)
					return NULL;
				memcpy(new_cache, stream->cache + i + 1,
				    stream->cache_len - i - 1);
				if (stream->cache_len - i - 1 > 0) {
					if ((new_cache = malloc(
					    stream->cache_len - i - 1)) == NULL)
						return NULL;
					memcpy(new_cache, stream->cache + i + 1,
					    stream->cache_len - i - 1);
				} else
					new_cache = cfw_strdup("");

				free(stream->cache);
				stream->cache = new_cache;
				stream->cache_len -= i + 1;

				return ret;
			}
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				if (ret == NULL) {
					free(buf);
					free(ret_str);
					return NULL;
				}
				cfw_string_set_nocopy(ret, ret_str, ret_len);

				if (buf_len - i - 1 > 0) {
				new_cache = malloc(buf_len - i - 1);
				if (new_cache == NULL) {
					free(buf);
					return NULL;
				}
				memcpy(new_cache, buf + i + 1, buf_len - i - 1);
					new_cache = malloc(buf_len - i - 1);
					if (new_cache == NULL) {
						free(buf);
						return NULL;
					}
					memcpy(new_cache, buf + i + 1,
					    buf_len - i - 1);
				} else
					new_cache = cfw_strdup("");

				free(stream->cache);
				stream->cache = new_cache;
				stream->cache_len = buf_len - i - 1;

				free(buf);
				return ret;
			}
		}

		/* There was no newline or \0 */
		if (stream->cache_len + buf_len > 0) {
		new_cache = realloc(stream->cache, stream->cache_len + buf_len);
		if (new_cache == NULL) {
			free(buf);
			return NULL;
		}
		memcpy(new_cache + stream->cache_len, buf, buf_len);
			new_cache = realloc(stream->cache,
			    stream->cache_len + buf_len);
			if (new_cache == NULL) {
				free(buf);
				return NULL;
			}
			memcpy(new_cache + stream->cache_len, buf, buf_len);
		} else {
			free(stream->cache);
			new_cache = cfw_strdup("");
		}

		stream->cache = new_cache;
		stream->cache_len += buf_len;
	}
}

bool
cfw_stream_write(void *ptr, const void *buf, size_t len)
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