32 lines
477 B
C
32 lines
477 B
C
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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int main(void) {
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int fd = open("./test/fileat", O_RDWR | O_SYNC);
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int fd2 = dup(fd);
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off_t off = lseek(fd, 3, SEEK_SET);
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if (off == -1) {
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printf("Fail to call lseek\n");
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return -1;
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}
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char buff[1024];
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int rbit = read(fd2, buff, 1024);
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if (rbit < 0) {
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printf("Error in reading file fileat");
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return -1;
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}
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buff[rbit] = 0;
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printf("rbit: %ld %s\n", rbit, buff);
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return 0;
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}
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