23 lines
512 B
C
23 lines
512 B
C
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#include <stdint.h>
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#include <errno.h>
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#include <unistd.h>
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#include "stub.h"
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#include <platform.h>
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ssize_t _read(int fd, void* ptr, size_t len);
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ssize_t _read(int fd, void* ptr, size_t len) {
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uint8_t * current = (uint8_t *)ptr;
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ssize_t result = 0;
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if (isatty(fd)) {
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for (current = (uint8_t *)ptr;
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(current < ((uint8_t *)ptr) + len) && (uart_get_rx_avail(uart) > 0);
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current ++) {
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*current = uart_read(uart);
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result++;
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}
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return result;
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}
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return _stub(EBADF);
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}
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