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| | #include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
char *__randname(char *);
int __open_tempfile (char *template, int len, int flags)
{
if (len < 0) return EINVAL;
size_t l = strlen(template)-len;
if (l < 6 || strncmp(template+l-6, "XXXXXX", 6)) {
errno = EINVAL;
*template = 0;
return -1;
}
int fd, retries = 100;
while (retries--) {
__randname(template+l-6);
if ((fd = open(template, flags | O_CREAT | O_EXCL, 0600))>=0)
return fd;
if (errno != EEXIST) return -1;
}
return -1;
}
|