Annotation of src/usr.bin/tmux/cmd-set-password.c, Revision 1.3
1.3 ! nicm 1: /* $OpenBSD: cmd-set-password.c,v 1.2 2009/07/13 23:11:35 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20:
21: #include <pwd.h>
22: #include <unistd.h>
23:
24: #include "tmux.h"
25:
26: /*
27: * Set server password.
28: */
29:
30: int cmd_set_password_parse(struct cmd *, int, char **, char **);
31: int cmd_set_password_exec(struct cmd *, struct cmd_ctx *);
32: void cmd_set_password_send(struct cmd *, struct buffer *);
33: void cmd_set_password_recv(struct cmd *, struct buffer *);
34: void cmd_set_password_free(struct cmd *);
35: void cmd_set_password_init(struct cmd *, int);
36: size_t cmd_set_password_print(struct cmd *, char *, size_t);
37:
38: struct cmd_set_password_data {
39: char *password;
40: int flag_encrypted;
41: };
42:
43: const struct cmd_entry cmd_set_password_entry = {
44: "set-password", "pass",
45: "[-c] password",
1.2 nicm 46: 0, 0,
1.1 nicm 47: cmd_set_password_init,
48: cmd_set_password_parse,
49: cmd_set_password_exec,
50: cmd_set_password_send,
51: cmd_set_password_recv,
52: cmd_set_password_free,
53: cmd_set_password_print
54: };
55:
56: void
57: cmd_set_password_init(struct cmd *self, unused int arg)
58: {
59: struct cmd_set_password_data *data;
60:
61: self->data = data = xmalloc(sizeof *data);
62: data->password = NULL;
63: data->flag_encrypted = 0;
64: }
65:
66: int
67: cmd_set_password_parse(struct cmd *self, int argc, char **argv, char **cause)
68: {
69: struct cmd_set_password_data *data;
70: int opt;
71: char *out;
72:
73: self->entry->init(self, 0);
74: data = self->data;
75:
76: while ((opt = getopt(argc, argv, "c")) != -1) {
77: switch (opt) {
78: case 'c':
79: data->flag_encrypted = 1;
80: break;
81: default:
82: goto usage;
83: }
84: }
85: argc -= optind;
86: argv += optind;
87: if (argc != 1)
88: goto usage;
89:
90: if (!data->flag_encrypted) {
91: if ((out = crypt(argv[0], "$1")) != NULL)
92: data->password = xstrdup(out);
93: } else
94: data->password = xstrdup(argv[0]);
95:
96: return (0);
97:
98: usage:
99: xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
100:
101: self->entry->free(self);
102: return (-1);
103: }
104:
105: int
106: cmd_set_password_exec(struct cmd *self, struct cmd_ctx *ctx)
107: {
108: struct cmd_set_password_data *data = self->data;
109:
110: if (data->password == NULL) {
111: ctx->error(ctx, "failed to encrypt password");
112: return (-1);
113: }
114:
115: if (server_password != NULL)
116: xfree(server_password);
117: if (*data->password == '\0')
118: server_password = NULL;
119: else
120: server_password = xstrdup(data->password);
121:
122: return (0);
123: }
124:
125: void
126: cmd_set_password_send(struct cmd *self, struct buffer *b)
127: {
128: struct cmd_set_password_data *data = self->data;
129:
130: buffer_write(b, data, sizeof *data);
131: cmd_send_string(b, data->password);
132: }
133:
134: void
135: cmd_set_password_recv(struct cmd *self, struct buffer *b)
136: {
137: struct cmd_set_password_data *data;
138:
139: self->data = data = xmalloc(sizeof *data);
140: buffer_read(b, data, sizeof *data);
141: data->password = cmd_recv_string(b);
142: }
143:
144: void
145: cmd_set_password_free(struct cmd *self)
146: {
147: struct cmd_set_password_data *data = self->data;
148:
149: if (data->password != NULL)
150: xfree(data->password);
151: xfree(data);
152: }
153:
154: size_t
155: cmd_set_password_print(struct cmd *self, char *buf, size_t len)
156: {
157: struct cmd_set_password_data *data = self->data;
158: size_t off = 0;
159:
160: off += xsnprintf(buf, len, "%s", self->entry->name);
161: if (data == NULL)
162: return (off);
163: if (off < len && data->flag_encrypted)
164: off += xsnprintf(buf + off, len - off, " -c");
165: if (off < len && data->password != NULL)
166: off += xsnprintf(buf + off, len - off, " password");
167: return (off);
168: }
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