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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
/*
* Copyright (c) 2000-2003, 2007 Proofpoint, Inc. and its suppliers.
* All rights reserved.
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the sendmail distribution.
*
*/
#include <sm/gen.h>
SM_RCSID("@(#)$Id: config.c,v 1.32 2013-11-22 20:51:42 ca Exp $")
#include <stdlib.h>
#include <sm/heap.h>
#include <sm/string.h>
#include <sm/conf.h>
/*
** PUTENV -- emulation of putenv() in terms of setenv()
**
** Not needed on Posix-compliant systems.
** This doesn't have full Posix semantics, but it's good enough
** for sendmail.
**
** Parameter:
** env -- the environment to put.
**
** Returns:
** 0 on success, < 0 on failure.
*/
#if NEEDPUTENV
# if NEEDPUTENV == 2 /* no setenv(3) call available */
int
putenv(str)
char *str;
{
char **current;
int matchlen, envlen = 0;
char *tmp;
char **newenv;
static bool first = true;
extern char **environ;
/*
** find out how much of str to match when searching
** for a string to replace.
*/
if ((tmp = strchr(str, '=')) == NULL || tmp == str)
matchlen = strlen(str);
else
matchlen = (int) (tmp - str);
++matchlen;
/*
** Search for an existing string in the environment and find the
** length of environ. If found, replace and exit.
*/
for (current = environ; *current != NULL; current++)
{
++envlen;
if (strncmp(str, *current, matchlen) == 0)
{
/* found it, now insert the new version */
*current = (char *) str;
return 0;
}
}
/*
** There wasn't already a slot so add space for a new slot.
** If this is our first time through, use malloc(), else realloc().
*/
if (first)
{
newenv = (char **) sm_malloc(sizeof(char *) * (envlen + 2));
if (newenv == NULL)
return -1;
first = false;
(void) memcpy(newenv, environ, sizeof(char *) * envlen);
}
else
{
newenv = (char **) sm_realloc((char *) environ,
sizeof(char *) * (envlen + 2));
if (newenv == NULL)
return -1;
}
/* actually add in the new entry */
environ = newenv;
environ[envlen] = (char *) str;
environ[envlen + 1] = NULL;
return 0;
}
# else /* NEEDPUTENV == 2 */
int
putenv(env)
char *env;
{
char *p;
int l;
char nbuf[100];
p = strchr(env, '=');
if (p == NULL)
return 0;
l = p - env;
if (l > sizeof nbuf - 1)
l = sizeof nbuf - 1;
memmove(nbuf, env, l);
nbuf[l] = '\0';
return setenv(nbuf, ++p, 1);
}
# endif /* NEEDPUTENV == 2 */
#endif /* NEEDPUTENV */
/*
** UNSETENV -- remove a variable from the environment
**
** Not needed on newer systems.
**
** Parameters:
** name -- the string name of the environment variable to be
** deleted from the current environment.
**
** Returns:
** none.
**
** Globals:
** environ -- a pointer to the current environment.
**
** Side Effects:
** Modifies environ.
*/
#if !HASUNSETENV
void
unsetenv(name)
char *name;
{
extern char **environ;
register char **pp;
int len = strlen(name);
for (pp = environ; *pp != NULL; pp++)
{
if (strncmp(name, *pp, len) == 0 &&
((*pp)[len] == '=' || (*pp)[len] == '\0'))
break;
}
for (; *pp != NULL; pp++)
*pp = pp[1];
}
#endif /* !HASUNSETENV */
char *SmCompileOptions[] =
{
#if SM_CONF_BROKEN_STRTOD
"SM_CONF_BROKEN_STRTOD",
#endif
#if SM_CONF_GETOPT
"SM_CONF_GETOPT",
#endif
#if SM_CONF_LDAP_INITIALIZE
"SM_CONF_LDAP_INITIALIZE",
#endif
#if SM_CONF_LDAP_MEMFREE
"SM_CONF_LDAP_MEMFREE",
#endif
#if SM_CONF_LONGLONG
"SM_CONF_LONGLONG",
#endif
#if SM_CONF_MEMCHR
"SM_CONF_MEMCHR",
#endif
#if SM_CONF_MSG
"SM_CONF_MSG",
#endif
#if SM_CONF_QUAD_T
"SM_CONF_QUAD_T",
#endif
#if SM_CONF_SEM
"SM_CONF_SEM",
#endif
#if SM_CONF_SETITIMER
"SM_CONF_SETITIMER",
#endif
#if SM_CONF_SIGSETJMP
"SM_CONF_SIGSETJMP",
#endif
#if SM_CONF_SHM
"SM_CONF_SHM",
#endif
#if SM_CONF_SHM_DELAY
"SM_CONF_SHM_DELAY",
#endif
#if SM_CONF_SSIZE_T
"SM_CONF_SSIZE_T",
#endif
#if SM_CONF_STDBOOL_H
"SM_CONF_STDBOOL_H",
#endif
#if SM_CONF_STDDEF_H
"SM_CONF_STDDEF_H",
#endif
/* XXX this is always enabled (for now) */
#if SM_CONF_STRL && 0
"SM_CONF_STRL",
#endif
#if SM_CONF_SYS_CDEFS_H
"SM_CONF_SYS_CDEFS_H",
#endif
#if SM_CONF_SYSEXITS_H
"SM_CONF_SYSEXITS_H",
#endif
#if SM_CONF_UID_GID
"SM_CONF_UID_GID",
#endif
#if DO_NOT_USE_STRCPY
"DO_NOT_USE_STRCPY",
#endif
#if SM_HEAP_CHECK
"SM_HEAP_CHECK",
#endif
#if defined(SM_OS_NAME) && defined(__STDC__)
"SM_OS=sm_os_" SM_OS_NAME,
#endif
#if SM_VA_STD
"SM_VA_STD",
#endif
#if USEKSTAT
"USEKSTAT",
#endif
#if USEPROCMEMINFO
"USEPROCMEMINFO",
#endif
#if USESWAPCTL
"USESWAPCTL",
#endif
NULL
};
|
