check return value of snprintf, fix typo, add clarification
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b482321213
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2 changed files with 14 additions and 7 deletions
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@ -319,8 +319,8 @@ int olm_session_has_received_message(
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);
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/**
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* Write a string describing the internal state of an olm session
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* to the buffer provided for debugging and logging purposes.
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* Write a null-terminated string describing the internal state of an olm
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* session to the buffer provided for debugging and logging purposes.
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*/
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void olm_session_describe(OlmSession * session, char *buf, size_t buflen);
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@ -404,25 +404,32 @@ void olm::Session::describe(char *describe_buffer, size_t buflen) {
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describe_buffer[0] = '\0';
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char *buf_pos = describe_buffer;
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buf_pos += snprintf(
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int size;
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size = snprintf(
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buf_pos, buflen - (buf_pos - describe_buffer),
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"sender chain index: %d ", ratchet.sender_chain[0].chain_key.index
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);
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if (size > 0) buf_pos += size;
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buf_pos += snprintf(buf_pos, buflen - (buf_pos - describe_buffer), "receiver chain indcies:");
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size = snprintf(buf_pos, buflen - (buf_pos - describe_buffer), "receiver chain indices:");
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if (size > 0) buf_pos += size;
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for (size_t i = 0; i < ratchet.receiver_chains.size(); ++i) {
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buf_pos += snprintf(
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size = snprintf(
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buf_pos, buflen - (buf_pos - describe_buffer),
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" %d", ratchet.receiver_chains[i].chain_key.index
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);
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if (size > 0) buf_pos += size;
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}
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buf_pos += snprintf(buf_pos, buflen - (buf_pos - describe_buffer), " skipped message keys:");
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size = snprintf(buf_pos, buflen - (buf_pos - describe_buffer), " skipped message keys:");
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if (size >= 0) buf_pos += size;
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for (size_t i = 0; i < ratchet.skipped_message_keys.size(); ++i) {
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buf_pos += snprintf(
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size = snprintf(
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buf_pos, buflen - (buf_pos - describe_buffer),
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" %d", ratchet.skipped_message_keys[i].message_key.index
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);
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if (size > 0) buf_pos += size;
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}
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}
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