1 // SPDX-License-Identifier: LGPL-2.1
2 #include <sys/types.h>
3 #include <sys/stat.h>
4 #include <fcntl.h>
5 
6 #ifndef O_DIRECT
7 #define O_DIRECT	00040000
8 #endif
9 
10 #ifndef O_DIRECTORY
11 #define O_DIRECTORY	00200000
12 #endif
13 
14 #ifndef O_NOATIME
15 #define O_NOATIME	01000000
16 #endif
17 
18 #ifndef O_TMPFILE
19 #define O_TMPFILE	020000000
20 #endif
21 
22 #undef O_LARGEFILE
23 #define O_LARGEFILE	00100000
24 
25 size_t open__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
26 {
27 	const char *prefix = "O_";
28 	int printed = 0;
29 
30 	if ((flags & O_ACCMODE) == O_RDONLY)
31 		printed = scnprintf(bf, size, "%s%s", show_prefix ? prefix : "", "RDONLY");
32 	if (flags == 0)
33 		return printed;
34 #define	P_FLAG(n) \
35 	if (flags & O_##n) { \
36 		printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
37 		flags &= ~O_##n; \
38 	}
39 
40 	P_FLAG(RDWR);
41 	P_FLAG(APPEND);
42 	P_FLAG(ASYNC);
43 	P_FLAG(CLOEXEC);
44 	P_FLAG(CREAT);
45 	P_FLAG(DIRECT);
46 	P_FLAG(DIRECTORY);
47 	P_FLAG(EXCL);
48 	P_FLAG(LARGEFILE);
49 	P_FLAG(NOFOLLOW);
50 	P_FLAG(TMPFILE);
51 	P_FLAG(NOATIME);
52 	P_FLAG(NOCTTY);
53 #ifdef O_NONBLOCK
54 	P_FLAG(NONBLOCK);
55 #elif O_NDELAY
56 	P_FLAG(NDELAY);
57 #endif
58 #ifdef O_PATH
59 	P_FLAG(PATH);
60 #endif
61 #ifdef O_DSYNC
62 	if ((flags & O_SYNC) == O_SYNC)
63 		printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", "SYNC");
64 	else {
65 		P_FLAG(DSYNC);
66 	}
67 #else
68 	P_FLAG(SYNC);
69 #endif
70 	P_FLAG(TRUNC);
71 	P_FLAG(WRONLY);
72 #undef P_FLAG
73 
74 	if (flags)
75 		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
76 
77 	return printed;
78 }
79 
80 size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg)
81 {
82 	int flags = arg->val;
83 
84 	if (!(flags & O_CREAT))
85 		arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */
86 
87 	return open__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
88 }
89