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[rc522_spi] Replace unsafe sprintf with buf_append_printf (#13291)

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This commit is contained in:
J. Nick Koston
2026-01-18 18:36:46 -10:00
committed by GitHub
parent 2f7270cf8f
commit 7b0db659d1
1 changed files with 5 additions and 4 deletions
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9
esphome/components/rc522_spi/rc522_spi.cpp
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@@ -1,4 +1,5 @@
#include "rc522_spi.h"
#include "esphome/core/helpers.h"
#include "esphome/core/log.h"
// Based on:
@@ -70,7 +71,7 @@ void RC522Spi::pcd_read_register(PcdRegister reg, ///< The register to read fro
index++;
#ifdef ESPHOME_LOG_HAS_VERY_VERBOSE
sprintf(cstrb, " %x", values[0]);
buf_append_printf(cstrb, sizeof(cstrb), 0, " %x", values[0]);
buf.append(cstrb);
#endif
}
@@ -78,7 +79,7 @@ void RC522Spi::pcd_read_register(PcdRegister reg, ///< The register to read fro
values[index] = transfer_byte(address); // Read value and tell that we want to read the same address again.
#ifdef ESPHOME_LOG_HAS_VERY_VERBOSE
sprintf(cstrb, " %x", values[index]);
buf_append_printf(cstrb, sizeof(cstrb), 0, " %x", values[index]);
buf.append(cstrb);
#endif
@@ -88,7 +89,7 @@ void RC522Spi::pcd_read_register(PcdRegister reg, ///< The register to read fro
#ifdef ESPHOME_LOG_HAS_VERY_VERBOSE
buf = buf + " ";
sprintf(cstrb, "%x", values[index]);
buf_append_printf(cstrb, sizeof(cstrb), 0, "%x", values[index]);
buf.append(cstrb);
ESP_LOGVV(TAG, "read_register_array_(%x, %d, , %d) -> %s", reg, count, rx_align, buf.c_str());
@@ -127,7 +128,7 @@ void RC522Spi::pcd_write_register(PcdRegister reg, ///< The register to write t
transfer_byte(values[index]);
#ifdef ESPHOME_LOG_HAS_VERY_VERBOSE
sprintf(cstrb, " %x", values[index]);
buf_append_printf(cstrb, sizeof(cstrb), 0, " %x", values[index]);
buf.append(cstrb);
#endif
}