mirror of https://github.com/BOINC/boinc.git
103 lines
1.6 KiB
C
103 lines
1.6 KiB
C
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
|
|
#include <dc_internal.h>
|
|
#include <dc_common.h>
|
|
|
|
/********************************************************************
|
|
* Constants
|
|
*/
|
|
|
|
/* Buffer size used when copying a file */
|
|
#define COPY_BUFSIZE 65536
|
|
|
|
|
|
/********************************************************************
|
|
* Functions
|
|
*/
|
|
|
|
int _DC_copyFile(const char *src, const char *dst)
|
|
{
|
|
int sfd, dfd;
|
|
ssize_t ret;
|
|
char *buf;
|
|
|
|
buf = (char *)malloc(COPY_BUFSIZE);
|
|
if (!buf)
|
|
return DC_ERR_SYSTEM;
|
|
|
|
sfd = open(src, O_RDONLY);
|
|
if (sfd == -1)
|
|
{
|
|
#if 0
|
|
DC_log(LOG_ERR, "Failed to open %s for copying: %s", src,
|
|
strerror(errno));
|
|
#endif
|
|
free(buf);
|
|
return -1;
|
|
}
|
|
dfd = open(dst, O_WRONLY | O_CREAT | O_TRUNC);
|
|
if (dfd == -1)
|
|
{
|
|
#if 0
|
|
DC_log(LOG_ERR, "Failed to create %s: %s", dst, strerror(errno));
|
|
#endif
|
|
free(buf);
|
|
close(sfd);
|
|
return -1;
|
|
}
|
|
|
|
while ((ret = read(sfd, buf, COPY_BUFSIZE)) > 0)
|
|
{
|
|
char *ptr = buf;
|
|
while (ret)
|
|
{
|
|
ssize_t ret2 = write(dfd, ptr, ret);
|
|
if (ret2 < 0)
|
|
{
|
|
#if 0
|
|
DC_log(LOG_ERR, "Error writing to %s: %s", dst,
|
|
strerror(errno));
|
|
#endif
|
|
goto error;
|
|
}
|
|
ret -= ret2;
|
|
ptr += ret2;
|
|
}
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
#if 0
|
|
DC_log(LOG_ERR, "Error reading from %s: %s", src, strerror(errno));
|
|
#endif
|
|
goto error;
|
|
}
|
|
|
|
free(buf);
|
|
close(sfd);
|
|
if (close(dfd))
|
|
{
|
|
#if 0
|
|
DC_log(LOG_ERR, "Error writing to %s: %s", dst, strerror(errno));
|
|
#endif
|
|
unlink(dst);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
|
|
error:
|
|
close(sfd);
|
|
close(dfd);
|
|
free(buf);
|
|
unlink(dst);
|
|
return -1;
|
|
}
|
|
|