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Protection against possible buffer overflow
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5a26d25647
commit
08503a20be
@ -141,6 +141,7 @@ packetbuf_copyto(void *to)
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int i;
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int i;
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char buffer[1000];
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char buffer[1000];
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char *bufferptr = buffer;
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char *bufferptr = buffer;
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int bufferlen = 0;
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bufferptr[0] = 0;
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bufferptr[0] = 0;
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for(i = hdrptr; i < PACKETBUF_HDR_SIZE; ++i) {
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for(i = hdrptr; i < PACKETBUF_HDR_SIZE; ++i) {
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@ -149,8 +150,8 @@ packetbuf_copyto(void *to)
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PRINTF("packetbuf_write: header: %s\n", buffer);
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PRINTF("packetbuf_write: header: %s\n", buffer);
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bufferptr = buffer;
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bufferptr = buffer;
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bufferptr[0] = 0;
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bufferptr[0] = 0;
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for(i = bufptr; i < buflen + bufptr; ++i) {
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for(i = bufptr; ((i < buflen + bufptr) && (bufferlen < 980)); ++i) {
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bufferptr += sprintf(bufferptr, "0x%02x, ", packetbufptr[i]);
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bufferlen += sprintf(bufferptr + bufferlen, "0x%02x, ", packetbufptr[i]);
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}
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}
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PRINTF("packetbuf_write: data: %s\n", buffer);
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PRINTF("packetbuf_write: data: %s\n", buffer);
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}
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}
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