51 lines
809 B
C
51 lines
809 B
C
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/*
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* cp
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*/
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#include <stdio.h>
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#define CHUNK_SIZE 4096
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int main(int argc, char ** argv) {
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FILE * fd;
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FILE * fout;
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if (argc < 3) {
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fprintf(stderr, "usage: %s [source] [destination]\n", argv[0]);
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return 1;
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}
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fd = fopen(argv[1], "r");
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if (!fd) {
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fprintf(stderr, "%s: %s: no such file or directory\n", argv[0], argv[1]);
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return 1;
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}
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fout = fopen(argv[2], "w");
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size_t length;
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fseek(fd, 0, SEEK_END);
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length = ftell(fd);
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fseek(fd, 0, SEEK_SET);
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char buf[CHUNK_SIZE];
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while (length > CHUNK_SIZE) {
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fread( buf, 1, CHUNK_SIZE, fd);
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fwrite(buf, 1, CHUNK_SIZE, fout);
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length -= CHUNK_SIZE;
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}
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if (length > 0) {
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fread( buf, 1, length, fd);
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fwrite(buf, 1, length, fout);
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}
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fclose(fd);
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fclose(fout);
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return 0;
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}
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/*
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* vim:tabstop=4
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* vim:noexpandtab
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* vim:shiftwidth=4
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*/
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