]>
Commit | Line | Data |
---|---|---|
faeb1b64 KZ |
1 | /* |
2 | * SPDX-License-Identifier: GPL-2.0-or-later | |
3 | */ | |
825feef8 SS |
4 | #include <sys/syslog.h> |
5 | #if defined (HAVE_LIBECONF) && defined (USE_VENDORDIR) | |
6 | #include <libeconf.h> | |
7 | #endif | |
8 | ||
9 | #include "closestream.h" | |
10 | #include "shells.h" | |
11 | ||
825feef8 | 12 | #if defined (HAVE_LIBECONF) && defined (USE_VENDORDIR) |
b8ecc2d3 TK |
13 | static econf_file *open_etc_shells(void) |
14 | { | |
825feef8 | 15 | econf_err error; |
f644f330 | 16 | econf_file *key_file = NULL; |
825feef8 SS |
17 | |
18 | error = econf_readDirs(&key_file, | |
19 | _PATH_VENDORDIR, | |
20 | "/etc", | |
21 | "shells", | |
22 | NULL, | |
23 | "", /* key only */ | |
24 | "#" /* comment */); | |
25 | if (error) { | |
26 | syslog(LOG_ALERT, | |
27 | _("Cannot parse shells files: %s"), | |
28 | econf_errString(error)); | |
b8ecc2d3 | 29 | return NULL; |
825feef8 SS |
30 | } |
31 | ||
b8ecc2d3 TK |
32 | return key_file; |
33 | } | |
34 | #endif | |
825feef8 | 35 | |
b8ecc2d3 TK |
36 | /* |
37 | * print_shells () -- /etc/shells is outputted to stdout. | |
38 | */ | |
39 | extern void print_shells(FILE *out, const char *format) | |
40 | { | |
41 | #if defined (HAVE_LIBECONF) && defined (USE_VENDORDIR) | |
42 | size_t size = 0; | |
43 | econf_err error; | |
44 | char **keys = NULL; | |
45 | econf_file *key_file = open_etc_shells(); | |
46 | ||
47 | if (!key_file) | |
48 | return; | |
49 | ||
50 | error = econf_getKeys(key_file, NULL, &size, &keys); | |
51 | if (error) { | |
52 | econf_free(key_file); | |
53 | errx(EXIT_FAILURE, | |
54 | _("Cannot evaluate entries in shells files: %s"), | |
55 | econf_errString(error)); | |
56 | } | |
57 | ||
58 | for (size_t i = 0; i < size; i++) { | |
59 | fprintf(out, format, keys[i]); | |
60 | } | |
61 | econf_free(keys); | |
62 | econf_free(key_file); | |
825feef8 | 63 | #else |
b8ecc2d3 TK |
64 | char *s; |
65 | ||
66 | while ((s = getusershell())) | |
67 | fprintf(out, format, s); | |
68 | endusershell(); | |
69 | #endif | |
70 | } | |
71 | ||
72 | ||
73 | /* | |
74 | * is_known_shell() -- if the given shell appears in /etc/shells | |
75 | * or vendor defined files. | |
76 | * Return 1 if found and return 0 if not found. | |
77 | */ | |
78 | extern int is_known_shell(const char *shell_name) | |
79 | { | |
80 | int ret = 0; | |
825feef8 SS |
81 | |
82 | if (!shell_name) | |
83 | return 0; | |
84 | ||
b8ecc2d3 TK |
85 | #if defined (HAVE_LIBECONF) && defined (USE_VENDORDIR) |
86 | char *val = NULL; | |
87 | econf_err error; | |
88 | econf_file *key_file = open_etc_shells(); | |
89 | ||
90 | if (!key_file) | |
91 | return 0; | |
92 | ||
93 | error = econf_getStringValue (key_file, NULL, shell_name, &val); | |
94 | if (error) { | |
95 | if (error != ECONF_NOKEY) | |
96 | syslog(LOG_ALERT, | |
97 | _("Cannot evaluate entries in shells files: %s"), | |
98 | econf_errString(error)); | |
99 | } else | |
100 | ret = 1; | |
101 | ||
102 | free(val); | |
103 | econf_free(key_file); | |
104 | #else | |
105 | char *s; | |
106 | ||
825feef8 SS |
107 | setusershell(); |
108 | while ((s = getusershell())) { | |
5099e004 | 109 | if (*s != '#' && strcmp(shell_name, s) == 0) { |
825feef8 SS |
110 | ret = 1; |
111 | break; | |
112 | } | |
113 | } | |
114 | endusershell(); | |
115 | #endif | |
116 | return ret; | |
117 | } |