This source file includes following definitions.
- get_pathname
- cleanup_path
- mkpath
- path__join
- path__join3
- is_regular_file
- is_directory
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14 #include "path.h"
15 #include "cache.h"
16 #include <linux/kernel.h>
17 #include <limits.h>
18 #include <stdio.h>
19 #include <string.h>
20 #include <sys/types.h>
21 #include <sys/stat.h>
22 #include <dirent.h>
23 #include <unistd.h>
24
25 static char bad_path[] = "/bad-path/";
26
27
28
29 static char *get_pathname(void)
30 {
31 static char pathname_array[4][PATH_MAX];
32 static int idx;
33
34 return pathname_array[3 & ++idx];
35 }
36
37 static char *cleanup_path(char *path)
38 {
39
40 if (!memcmp(path, "./", 2)) {
41 path += 2;
42 while (*path == '/')
43 path++;
44 }
45 return path;
46 }
47
48 char *mkpath(const char *fmt, ...)
49 {
50 va_list args;
51 unsigned len;
52 char *pathname = get_pathname();
53
54 va_start(args, fmt);
55 len = vsnprintf(pathname, PATH_MAX, fmt, args);
56 va_end(args);
57 if (len >= PATH_MAX)
58 return bad_path;
59 return cleanup_path(pathname);
60 }
61
62 int path__join(char *bf, size_t size, const char *path1, const char *path2)
63 {
64 return scnprintf(bf, size, "%s%s%s", path1, path1[0] ? "/" : "", path2);
65 }
66
67 int path__join3(char *bf, size_t size, const char *path1, const char *path2, const char *path3)
68 {
69 return scnprintf(bf, size, "%s%s%s%s%s", path1, path1[0] ? "/" : "",
70 path2, path2[0] ? "/" : "", path3);
71 }
72
73 bool is_regular_file(const char *file)
74 {
75 struct stat st;
76
77 if (stat(file, &st))
78 return false;
79
80 return S_ISREG(st.st_mode);
81 }
82
83
84 bool is_directory(const char *base_path, const struct dirent *dent)
85 {
86 char path[PATH_MAX];
87 struct stat st;
88
89 sprintf(path, "%s/%s", base_path, dent->d_name);
90 if (stat(path, &st))
91 return false;
92
93 return S_ISDIR(st.st_mode);
94 }