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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
7584d236 | 2 | |
a8fbdf54 TA |
3 | #include <errno.h> |
4 | #include <stdio.h> | |
5 | #include <string.h> | |
6 | #include <unistd.h> | |
7584d236 | 7 | |
f97b34a6 | 8 | #include "format-util.h" |
b1d4f8e1 | 9 | #include "install-printf.h" |
a8fbdf54 TA |
10 | #include "install.h" |
11 | #include "macro.h" | |
7584d236 | 12 | #include "specifier.h" |
6e3136b2 | 13 | #include "string-util.h" |
7584d236 | 14 | #include "unit-name.h" |
b1d4f8e1 | 15 | #include "user-util.h" |
7584d236 | 16 | |
303ee601 | 17 | static int specifier_prefix_and_instance(char specifier, const void *data, const void *userdata, char **ret) { |
cfd559c9 ZJS |
18 | const UnitFileInstallInfo *i = userdata; |
19 | _cleanup_free_ char *prefix = NULL; | |
20 | int r; | |
21 | ||
22 | assert(i); | |
23 | ||
24 | r = unit_name_to_prefix_and_instance(i->name, &prefix); | |
25 | if (r < 0) | |
26 | return r; | |
27 | ||
28 | if (endswith(prefix, "@") && i->default_instance) { | |
29 | char *ans; | |
30 | ||
605405c6 | 31 | ans = strjoin(prefix, i->default_instance); |
cfd559c9 ZJS |
32 | if (!ans) |
33 | return -ENOMEM; | |
34 | *ret = ans; | |
ae2a15bc LP |
35 | } else |
36 | *ret = TAKE_PTR(prefix); | |
cfd559c9 ZJS |
37 | |
38 | return 0; | |
39 | } | |
40 | ||
303ee601 | 41 | static int specifier_name(char specifier, const void *data, const void *userdata, char **ret) { |
cfd559c9 ZJS |
42 | const UnitFileInstallInfo *i = userdata; |
43 | char *ans; | |
19f6d710 | 44 | |
7584d236 ZJS |
45 | assert(i); |
46 | ||
cfd559c9 ZJS |
47 | if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE) && i->default_instance) |
48 | return unit_name_replace_instance(i->name, i->default_instance, ret); | |
49 | ||
50 | ans = strdup(i->name); | |
51 | if (!ans) | |
52 | return -ENOMEM; | |
53 | *ret = ans; | |
54 | return 0; | |
7584d236 ZJS |
55 | } |
56 | ||
303ee601 | 57 | static int specifier_prefix(char specifier, const void *data, const void *userdata, char **ret) { |
cfd559c9 | 58 | const UnitFileInstallInfo *i = userdata; |
19f6d710 | 59 | |
7584d236 ZJS |
60 | assert(i); |
61 | ||
7410616c | 62 | return unit_name_to_prefix(i->name, ret); |
7584d236 ZJS |
63 | } |
64 | ||
303ee601 | 65 | static int specifier_instance(char specifier, const void *data, const void *userdata, char **ret) { |
6e3136b2 | 66 | const UnitFileInstallInfo *i = userdata; |
7584d236 ZJS |
67 | char *instance; |
68 | int r; | |
69 | ||
70 | assert(i); | |
71 | ||
72 | r = unit_name_to_instance(i->name, &instance); | |
73 | if (r < 0) | |
19f6d710 LP |
74 | return r; |
75 | ||
6e3136b2 | 76 | if (isempty(instance)) { |
87e4e28d | 77 | r = free_and_strdup(&instance, strempty(i->default_instance)); |
402a81c7 ZJS |
78 | if (r < 0) |
79 | return r; | |
19f6d710 LP |
80 | } |
81 | ||
82 | *ret = instance; | |
83 | return 0; | |
7584d236 ZJS |
84 | } |
85 | ||
303ee601 | 86 | static int specifier_last_component(char specifier, const void *data, const void *userdata, char **ret) { |
250e9fad ZJS |
87 | _cleanup_free_ char *prefix = NULL; |
88 | char *dash; | |
89 | int r; | |
90 | ||
91 | r = specifier_prefix(specifier, data, userdata, &prefix); | |
92 | if (r < 0) | |
93 | return r; | |
94 | ||
95 | dash = strrchr(prefix, '-'); | |
96 | if (dash) { | |
97 | dash = strdup(dash + 1); | |
98 | if (!dash) | |
99 | return -ENOMEM; | |
100 | *ret = dash; | |
101 | } else | |
102 | *ret = TAKE_PTR(prefix); | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
303ee601 | 107 | int install_full_printf(const UnitFileInstallInfo *i, const char *format, char **ret) { |
7584d236 ZJS |
108 | /* This is similar to unit_full_printf() but does not support |
109 | * anything path-related. | |
110 | * | |
111 | * %n: the full id of the unit (foo@bar.waldo) | |
112 | * %N: the id of the unit without the suffix (foo@bar) | |
113 | * %p: the prefix (foo) | |
114 | * %i: the instance (bar) | |
115 | ||
79413b67 LP |
116 | * %U the UID of the running user |
117 | * %u the username of running user | |
7584d236 ZJS |
118 | * %m the machine ID of the running system |
119 | * %H the host name of the running system | |
120 | * %b the boot ID of the running system | |
6aaa8c2f | 121 | * %v `uname -r` of the running system |
7584d236 ZJS |
122 | */ |
123 | ||
124 | const Specifier table[] = { | |
cfd559c9 | 125 | { 'n', specifier_name, NULL }, |
7584d236 ZJS |
126 | { 'N', specifier_prefix_and_instance, NULL }, |
127 | { 'p', specifier_prefix, NULL }, | |
128 | { 'i', specifier_instance, NULL }, | |
250e9fad | 129 | { 'j', specifier_last_component, NULL }, |
7584d236 | 130 | |
b75f0c69 DC |
131 | { 'g', specifier_group_name, NULL }, |
132 | { 'G', specifier_group_id, NULL }, | |
79413b67 | 133 | { 'U', specifier_user_id, NULL }, |
3f0b2f0f | 134 | { 'u', specifier_user_name, NULL }, |
7584d236 ZJS |
135 | |
136 | { 'm', specifier_machine_id, NULL }, | |
137 | { 'H', specifier_host_name, NULL }, | |
138 | { 'b', specifier_boot_id, NULL }, | |
6aaa8c2f ZJS |
139 | { 'v', specifier_kernel_release, NULL }, |
140 | {} | |
7584d236 ZJS |
141 | }; |
142 | ||
143 | assert(i); | |
144 | assert(format); | |
19f6d710 | 145 | assert(ret); |
7584d236 | 146 | |
19f6d710 | 147 | return specifier_printf(format, table, i, ret); |
7584d236 | 148 | } |