59 lines
911 B
C
59 lines
911 B
C
#include <common.h>
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#include <fs.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <malloc.h>
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#define RW_BUF_SIZE (ulong)4096
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/**
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* @param[in] src FIXME
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* @param[out] dst FIXME
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*/
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int copy_file(const char *src, const char *dst)
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{
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char *rw_buf = NULL;
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int srcfd = 0, dstfd = 0;
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int r, w;
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int ret = 1;
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rw_buf = xmalloc(RW_BUF_SIZE);
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srcfd = open(src, O_RDONLY);
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if (srcfd < 0) {
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printf("could not open %s: %s\n", src, errno_str());
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goto out;
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}
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dstfd = open(dst, O_WRONLY | O_CREAT);
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if (dstfd < 0) {
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printf("could not open %s: %s\n", dst, errno_str());
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goto out;
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}
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while(1) {
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r = read(srcfd, rw_buf, RW_BUF_SIZE);
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if (r < 0) {
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perror("read");
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goto out;
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}
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if (!r)
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break;
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w = write(dstfd, rw_buf, r);
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if (w < 0) {
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perror("write");
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goto out;
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}
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}
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ret = 0;
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out:
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free(rw_buf);
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if (srcfd > 0)
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close(srcfd);
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if (dstfd > 0)
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close(dstfd);
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return ret;
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}
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