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1.1 root 1: /*
2: * K. P. Vo
3: * AT&T Bell Laboratories
4: *
5: * ftwalk(3) interface definitions
6: */
7:
8: #ifndef FTW_DOT
9:
10: #ifndef VOID
11: #define VOID char
12: #endif
13:
14: /*
15: * ftwalk() argument flags
16: */
17:
18: #define FTW_CHILDREN (1<<0) /* call user function on child dirs too */
19: #define FTW_DELAY (1<<1) /* do child stat after parent preorder */
20: #define FTW_DOT (1<<2) /* don't chdir(2) to subdirectories */
21: #define FTW_MULTIPLE (1<<3) /* path arg is 0 terminated char** argv */
22: #define FTW_PHYSICAL (1<<4) /* physical rather than logical walk */
23: #define FTW_POST (1<<5) /* visit descendants before parent */
24: #define FTW_TWICE (1<<6) /* visit parent before&after descendants*/
25:
26: #define FTW_USER (1<<10) /* first user flag bit */
27:
28: struct FTW /* user function arg */
29: {
30: struct FTW* left; /* left child in cycle check tree */
31: struct FTW* right; /* right child in cycle check tree */
32: struct FTW* link; /* identical to this elt on search path */
33: struct FTW* parent; /* parent in current search path */
34: union
35: {
36: long number; /* local number */
37: char* pointer;/* local pointer */
38: } local; /* local user data */
39: struct stat statb; /* stat buffer of this object */
40: char* path; /* full pathname */
41: short pathlen;/* strlen(path) */
42: unsigned short info; /* FTW_* type bits */
43: unsigned short status; /* user function entry/return status */
44: short level; /* current tree depth */
45: short namelen;/* strlen(name) */
46: char name[sizeof(int)]; /* file base name */
47: };
48:
49: /*
50: * individual struct FTW size
51: */
52:
53: #define FTWSIZE(f) ((f)->namelen+1+sizeof(struct FTW)-sizeof(int))
54:
55: /*
56: * FTW.info type bits
57: */
58:
59: #define FTW_NS (1<<0) /* stat failed - unknown */
60: #define FTW_F (1<<1) /* file - not directory or symbolic link*/
61: #define FTW_SL (1<<2) /* symbolic link */
62: #define FTW_D (1<<3) /* directory - pre-order visit */
63:
64: #define FTW_C (1<<4) /* causes cycle */
65: #define FTW_NR (1<<5) /* cannot read */
66: #define FTW_NX (1<<6) /* cannot search */
67: #define FTW_P (1<<7) /* post-order visit */
68:
69: #define FTW_DC (FTW_D|FTW_C) /* directory - would cause cycle */
70: #define FTW_DNR (FTW_D|FTW_NR) /* directory - no read permission */
71: #define FTW_DNX (FTW_D|FTW_NX) /* directory - no search permission */
72: #define FTW_DP (FTW_D|FTW_P) /* directory - post-order visit */
73:
74: /*
75: * FTW.status entry values
76: */
77:
78: #define FTW_NAME (1<<0) /* use FTW.name rather than FTW.path */
79: #define FTW_PATH (1<<1) /* use FTW.path rather than FTW.name */
80:
81: /*
82: * FTW.status return values
83: */
84:
85: #define FTW_AGAIN (1<<2) /* process entry again */
86: #define FTW_FOLLOW (1<<3) /* follow FTW_SL symlink */
87: #define FTW_NOPOST (1<<4) /* skip post order visit */
88: #define FTW_SKIP (1<<5) /* skip FTW_D directory */
89: #define FTW_STAT (1<<6) /* userf did stat */
90:
91: #if __STDC__ || __cplusplus || c_plusplus
92: #if __cplusplus
93: extern "C" {
94: #endif
95: extern int ftwalk(const char* path, int (*userf)(struct FTW*), int flags, int (*comparf)(struct FTW*, struct FTW*));
96: #if __cplusplus
97: }
98: #endif
99: #else
100: extern int ftwalk();
101: #endif
102:
103: #endif
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