forked from PoliEcho-holding-org/kern
30 lines
594 B
C
30 lines
594 B
C
#include <stdio.h>
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#include <syscall.h>
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int getchar(void) { return getc(stdin); }
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int putchar(int c) { return putc(c, stdout); }
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int getc(FILE* stream) {
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if (!stream) { return EOF; }
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unsigned char ch = '\0';
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ssize_t res = read(stream->_file, &ch, 1);
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if (res <= 0) { return EOF; }
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return (int)ch;
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}
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int putc(int c, FILE* stream) {
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if (!stream) { return EOF; }
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unsigned char ch = (unsigned char)c;
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ssize_t res = write(stream->_file, &c, 1);
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if (res <= 0) { return EOF; }
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return (int)ch;
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}
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// TODO:
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int ungetc(int c, FILE* stream) { return EOF; }
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