1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
// users.c -- operating system user information
#include <uv.h>
#include "nvim/ascii.h"
#include "nvim/os/os.h"
#include "nvim/garray.h"
#include "nvim/memory.h"
#include "nvim/strings.h"
#ifdef HAVE_PWD_H
# include <pwd.h>
#endif
// Initialize users garray and fill it with os usernames.
// Return Ok for success, FAIL for failure.
int os_get_usernames(garray_T *users)
{
if (users == NULL) {
return FAIL;
}
ga_init(users, sizeof(char *), 20);
# if defined(HAVE_GETPWENT) && defined(HAVE_PWD_H)
struct passwd *pw;
setpwent();
while ((pw = getpwent()) != NULL) {
// pw->pw_name shouldn't be NULL but just in case...
if (pw->pw_name != NULL) {
GA_APPEND(char *, users, xstrdup(pw->pw_name));
}
}
endpwent();
# endif
return OK;
}
// Insert user name in s[len].
// Return OK if a name found.
int os_get_user_name(char *s, size_t len)
{
#ifdef UNIX
return os_get_uname((uv_uid_t)getuid(), s, len);
#else
// TODO(equalsraf): Windows GetUserName()
return os_get_uname((uv_uid_t)0, s, len);
#endif
}
// Insert user name for "uid" in s[len].
// Return OK if a name found.
// If the name is not found, write the uid into s[len] and return FAIL.
int os_get_uname(uv_uid_t uid, char *s, size_t len)
{
#if defined(HAVE_PWD_H) && defined(HAVE_GETPWUID)
struct passwd *pw;
if ((pw = getpwuid(uid)) != NULL // NOLINT(runtime/threadsafe_fn)
&& pw->pw_name != NULL && *(pw->pw_name) != NUL) {
STRLCPY(s, pw->pw_name, len);
return OK;
}
#endif
snprintf(s, len, "%d", (int)uid);
return FAIL; // a number is not a name
}
// Returns the user directory for the given username.
// The caller has to free() the returned string.
// If the username is not found, NULL is returned.
char *os_get_user_directory(const char *name)
{
#if defined(HAVE_GETPWNAM) && defined(HAVE_PWD_H)
if (name == NULL || *name == NUL) {
return NULL;
}
struct passwd *pw = getpwnam(name); // NOLINT(runtime/threadsafe_fn)
if (pw != NULL) {
// save the string from the static passwd entry into malloced memory
return xstrdup(pw->pw_dir);
}
#endif
return NULL;
}
|
