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[api] Store plaintext error message in PROGMEM on ESP8266 (#10634)

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This commit is contained in:
J. Nick Koston
2025-09-07 20:09:47 -05:00
committed by GitHub
parent 7eaaa4e426
commit 666e33e70b
1 changed files with 17 additions and 4 deletions
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19
esphome/components/api/api_frame_helper_plaintext.cpp
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@@ -10,6 +10,10 @@
#include <cstring>
#include <cinttypes>
#ifdef USE_ESP8266
#include <pgmspace.h>
#endif
namespace esphome::api {
static const char *const TAG = "api.plaintext";
@@ -197,11 +201,20 @@ APIError APIPlaintextFrameHelper::read_packet(ReadPacketBuffer *buffer) {
// We must send at least 3 bytes to be read, so we add
// a message after the indicator byte to ensures its long
// enough and can aid in debugging.
const char msg[] = "\x00"
static constexpr uint8_t INDICATOR_MSG_SIZE = 19;
#ifdef USE_ESP8266
static const char MSG_PROGMEM[] PROGMEM = "\x00"
"Bad indicator byte";
char msg[INDICATOR_MSG_SIZE];
memcpy_P(msg, MSG_PROGMEM, INDICATOR_MSG_SIZE);
iov[0].iov_base = (void *) msg;
iov[0].iov_len = 19;
this->write_raw_(iov, 1, 19);
#else
static const char MSG[] = "\x00"
"Bad indicator byte";
iov[0].iov_base = (void *) MSG;
#endif
iov[0].iov_len = INDICATOR_MSG_SIZE;
this->write_raw_(iov, 1, INDICATOR_MSG_SIZE);
}
return aerr;
}