51 lines
808 B
C
51 lines
808 B
C
#include <stdio.h>
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#include <stdlib.h>
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#define BUFSIZE 1024
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/**
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* @brief
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* @details
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* usage: ./mycpy <src> <dst>
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*
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* @return int
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*/
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int main(int argc, char** argv)
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{
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FILE *fps, *fpd;
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char buf[BUFSIZE];
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int n;
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if (argc < 3)
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{
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fprintf(stderr, "Usage:%s <src> <dst>\n", argv[0]);
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exit(1);
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}
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fopen(argv[1], "r");
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if (NULL == fps)
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{
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perror("fopen()");
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exit(1);
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}
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fopen(argv[2], "w");
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if (NULL == fpd)
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{
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// !!!
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fclose(fps);
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perror("fopen()");
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exit(1);
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}
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/* 用n接收读到的个数，因为不知道能不能正好读到BUFSIZE */
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while ((n = fread(buf, 1, BUFSIZE, fps)) > 0)
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fread(buf, 1, n, fpd);
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fclose(fpd);
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fclose(fps);
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exit(0);
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}
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