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ef416fc2 | 1 | /* |
c07d5b2d | 2 | * "$Id: env.c 177 2006-06-21 00:20:03Z jlovell $" |
ef416fc2 | 3 | * |
4 | * Environment management routines for the Common UNIX Printing System (CUPS). | |
5 | * | |
e00b005a | 6 | * Copyright 1997-2006 by Easy Software Products, all rights reserved. |
ef416fc2 | 7 | * |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Easy Software Products and are protected by Federal | |
10 | * copyright law. Distribution and use rights are outlined in the file | |
11 | * "LICENSE.txt" which should have been included with this file. If this | |
12 | * file is missing or damaged please contact Easy Software Products | |
13 | * at: | |
14 | * | |
15 | * Attn: CUPS Licensing Information | |
16 | * Easy Software Products | |
17 | * 44141 Airport View Drive, Suite 204 | |
18 | * Hollywood, Maryland 20636 USA | |
19 | * | |
20 | * Voice: (301) 373-9600 | |
21 | * EMail: cups-info@cups.org | |
22 | * WWW: http://www.cups.org | |
23 | * | |
24 | * Contents: | |
25 | * | |
ef416fc2 | 26 | * cupsdInitEnv() - Initialize the current environment with standard |
27 | * variables. | |
28 | * cupsdLoadEnv() - Copy common environment variables into an array. | |
29 | * cupsdSetEnv() - Set a common environment variable. | |
30 | * cupsdSetEnvf() - Set a formatted common environment variable. | |
e1d6a774 | 31 | * clear_env() - Clear common environment variables. |
ef416fc2 | 32 | */ |
33 | ||
34 | /* | |
35 | * Include necessary headers... | |
36 | */ | |
37 | ||
38 | #include "cupsd.h" | |
39 | ||
40 | ||
41 | /* | |
42 | * Local globals... | |
43 | */ | |
44 | ||
45 | static int num_common_env = 0; /* Number of common env vars */ | |
e00b005a | 46 | static char *common_env[MAX_ENV]; /* Common env vars */ |
ef416fc2 | 47 | |
48 | ||
49 | /* | |
e1d6a774 | 50 | * Local functions... |
ef416fc2 | 51 | */ |
52 | ||
e1d6a774 | 53 | static void clear_env(void); |
ef416fc2 | 54 | |
55 | ||
56 | /* | |
57 | * 'cupsdInitEnv()' - Initialize the current environment with standard variables. | |
58 | */ | |
59 | ||
60 | void | |
61 | cupsdInitEnv(void) | |
62 | { | |
63 | /* | |
64 | * Clear existing environment variables... | |
65 | */ | |
66 | ||
e1d6a774 | 67 | clear_env(); |
ef416fc2 | 68 | |
bd7854cb | 69 | #if defined(__APPLE__) |
ef416fc2 | 70 | /* |
e53920b9 | 71 | * Add special voodoo magic for MacOS X - this allows MacOS X |
72 | * programs to access their bundle resources properly... | |
bd7854cb | 73 | * |
e53920b9 | 74 | * This string is replaced in cupsdStartProcess()... |
ef416fc2 | 75 | */ |
76 | ||
77 | cupsdSetString(common_env, "<CFProcessPath>"); | |
78 | num_common_env = 1; | |
bd7854cb | 79 | #endif /* __APPLE__ */ |
ef416fc2 | 80 | |
81 | /* | |
82 | * Set common variables... | |
83 | */ | |
84 | ||
85 | cupsdSetEnv("CUPS_CACHEDIR", CacheDir); | |
86 | cupsdSetEnv("CUPS_DATADIR", DataDir); | |
87 | cupsdSetEnv("CUPS_DOCROOT", DocumentRoot); | |
88 | cupsdSetEnv("CUPS_FONTPATH", FontPath); | |
89 | cupsdSetEnv("CUPS_REQUESTROOT", RequestRoot); | |
90 | cupsdSetEnv("CUPS_SERVERBIN", ServerBin); | |
91 | cupsdSetEnv("CUPS_SERVERROOT", ServerRoot); | |
92 | cupsdSetEnv("CUPS_STATEDIR", StateDir); | |
93 | cupsdSetEnv("DYLD_LIBRARY_PATH", NULL); | |
94 | cupsdSetEnv("LD_ASSUME_KERNEL", NULL); | |
95 | cupsdSetEnv("LD_LIBRARY_PATH", NULL); | |
96 | cupsdSetEnv("LD_PRELOAD", NULL); | |
97 | cupsdSetEnv("NLSPATH", NULL); | |
fa73b229 | 98 | cupsdSetEnvf("PATH", "%s/filter:" CUPS_BINDIR ":" CUPS_SBINDIR |
99 | ":/bin:/usr/bin", ServerBin); | |
100 | cupsdSetEnv("SERVER_ADMIN", ServerAdmin); | |
ef416fc2 | 101 | cupsdSetEnv("SHLIB_PATH", NULL); |
102 | cupsdSetEnv("SOFTWARE", CUPS_MINIMAL); | |
103 | cupsdSetEnv("TMPDIR", TempDir); | |
104 | cupsdSetEnv("TZ", NULL); | |
105 | cupsdSetEnv("USER", "root"); | |
106 | cupsdSetEnv("VG_ARGS", NULL); | |
107 | } | |
108 | ||
109 | ||
110 | /* | |
111 | * 'cupsdLoadEnv()' - Copy common environment variables into an array. | |
112 | */ | |
113 | ||
114 | int /* O - Number of environment variables */ | |
115 | cupsdLoadEnv(char *envp[], /* I - Environment array */ | |
116 | int envmax) /* I - Maximum number of elements */ | |
117 | { | |
118 | int i; /* Looping var */ | |
119 | ||
120 | ||
121 | /* | |
122 | * Leave room for a NULL pointer at the end... | |
123 | */ | |
124 | ||
125 | envmax --; | |
126 | ||
127 | /* | |
128 | * Copy pointers to the environment... | |
129 | */ | |
130 | ||
131 | for (i = 0; i < num_common_env && i < envmax; i ++) | |
132 | envp[i] = common_env[i]; | |
133 | ||
134 | /* | |
135 | * NULL terminate the environment array and return the number of | |
136 | * elements we added... | |
137 | */ | |
138 | ||
139 | envp[i] = NULL; | |
140 | ||
141 | return (i); | |
142 | } | |
143 | ||
144 | ||
145 | /* | |
146 | * 'cupsdSetEnv()' - Set a common environment variable. | |
147 | */ | |
148 | ||
149 | void | |
150 | cupsdSetEnv(const char *name, /* I - Name of variable */ | |
151 | const char *value) /* I - Value of variable */ | |
152 | { | |
480ef0fe | 153 | int i, /* Looping var */ |
154 | namelen; /* Length of name */ | |
ef416fc2 | 155 | |
ef416fc2 | 156 | |
157 | /* | |
158 | * If "value" is NULL, try getting value from current environment... | |
159 | */ | |
160 | ||
161 | if (!value) | |
162 | value = getenv(name); | |
163 | ||
164 | if (!value) | |
165 | return; | |
166 | ||
167 | /* | |
480ef0fe | 168 | * See if this variable has already been defined... |
ef416fc2 | 169 | */ |
170 | ||
480ef0fe | 171 | for (i = 0, namelen = strlen(name); i < num_common_env; i ++) |
172 | if (!strncmp(common_env[i], name, namelen) && common_env[i][namelen] == '=') | |
173 | break; | |
174 | ||
175 | if (i >= num_common_env) | |
176 | { | |
177 | /* | |
178 | * Check for room... | |
179 | */ | |
180 | ||
181 | if (num_common_env >= (int)(sizeof(common_env) / sizeof(common_env[0]))) | |
182 | { | |
183 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
184 | "cupsdSetEnv: Too many environment variables set!"); | |
185 | return; | |
186 | } | |
187 | ||
188 | num_common_env ++; | |
189 | } | |
190 | ||
191 | /* | |
192 | * Set the new environment variable... | |
193 | */ | |
ef416fc2 | 194 | |
480ef0fe | 195 | cupsdSetStringf(common_env + i, "%s=%s", name, value); |
ef416fc2 | 196 | |
480ef0fe | 197 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdSetEnv: %s\n", common_env[i]); |
ef416fc2 | 198 | } |
199 | ||
200 | ||
201 | /* | |
202 | * 'cupsdSetEnvf()' - Set a formatted common environment variable. | |
203 | */ | |
204 | ||
205 | void | |
206 | cupsdSetEnvf(const char *name, /* I - Name of variable */ | |
207 | const char *value, /* I - Printf-style value of variable */ | |
208 | ...) /* I - Additional args as needed */ | |
209 | { | |
210 | char v[4096]; /* Formatting string value */ | |
211 | va_list ap; /* Argument pointer */ | |
212 | ||
213 | ||
214 | /* | |
215 | * Format the value string... | |
216 | */ | |
217 | ||
218 | va_start(ap, value); | |
219 | vsnprintf(v, sizeof(v), value, ap); | |
220 | va_end(ap); | |
221 | ||
222 | /* | |
223 | * Set the env variable... | |
224 | */ | |
225 | ||
226 | cupsdSetEnv(name, v); | |
227 | } | |
228 | ||
229 | ||
230 | /* | |
e1d6a774 | 231 | * 'clear_env()' - Clear common environment variables. |
232 | */ | |
233 | ||
234 | static void | |
235 | clear_env(void) | |
236 | { | |
237 | int i; /* Looping var */ | |
238 | ||
239 | ||
240 | for (i = 0; i < num_common_env; i ++) | |
241 | cupsdClearString(common_env + i); | |
242 | ||
243 | num_common_env = 0; | |
244 | } | |
245 | ||
246 | ||
247 | /* | |
c07d5b2d | 248 | * End of "$Id: env.c 177 2006-06-21 00:20:03Z jlovell $". |
ef416fc2 | 249 | */ |