4 int mkdir_p(char *path, mode_t mode)
13 if (stat(path, &st) == 0)
18 while ((d = strchr(d, '/'))) {
20 err = stat(path, &st) && mkdir(path, mode);
27 return (stat(path, &st) && mkdir(path, mode)) ? -1 : 0;
30 static int slow_copyfile(const char *from, const char *to)
35 FILE *from_fp = fopen(from, "r"), *to_fp;
40 to_fp = fopen(to, "w");
44 while (getline(&line, &n, from_fp) > 0)
45 if (fputs(line, to_fp) == EOF)
57 int copyfile(const char *from, const char *to)
67 if (st.st_size == 0) /* /proc? do it slowly... */
68 return slow_copyfile(from, to);
70 fromfd = open(from, O_RDONLY);
74 tofd = creat(to, 0755);
78 addr = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fromfd, 0);
79 if (addr == MAP_FAILED)
82 if (write(tofd, addr, st.st_size) == st.st_size)
85 munmap(addr, st.st_size);