Commit | Line | Data |
---|---|---|
059ec3d9 PH |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
0a49a7a4 | 5 | /* Copyright (c) University of Cambridge 1995 - 2009 */ |
059ec3d9 PH |
6 | /* See the file NOTICE for conditions of use and distribution. */ |
7 | ||
8 | ||
9 | /************************************************* | |
10 | * Build configuration header for Exim * | |
11 | *************************************************/ | |
12 | ||
13 | /* This auxiliary program builds the file config.h by the following | |
14 | process: | |
15 | ||
c6c2dc1d PH |
16 | First, it determines the size of off_t and time_t variables, and generates |
17 | macro code to define OFF_T_FMT and TIME_T_FMT as suitable formats, if they are | |
18 | not already defined in the system-specific header file. | |
b1c749bb PH |
19 | |
20 | Then it reads Makefile, looking for certain OS-specific definitions which it | |
21 | uses to define some specific macros. Finally, it reads the defaults file | |
22 | config.h.defaults. | |
059ec3d9 PH |
23 | |
24 | The defaults file contains normal C #define statements for various macros; if | |
25 | the name of a macro is found in the environment, the environment value replaces | |
26 | the default. If the default #define does not contain any value, then that macro | |
27 | is not copied to the created file unless there is some value in the | |
28 | environment. | |
29 | ||
30 | This program is compiled and run as part of the Make process and is not | |
31 | normally called independently. */ | |
32 | ||
33 | ||
34 | #include <ctype.h> | |
35 | #include <stdio.h> | |
36 | #include <stdlib.h> | |
37 | #include <string.h> | |
38 | #include <sys/types.h> | |
39 | #include <pwd.h> | |
40 | #include <grp.h> | |
41 | ||
42 | typedef struct { | |
1ba28e2b | 43 | const char *name; |
059ec3d9 PH |
44 | int *flag; |
45 | } have_item; | |
46 | ||
47 | typedef struct { | |
1ba28e2b | 48 | const char *name; |
059ec3d9 PH |
49 | char *data; |
50 | } save_item; | |
51 | ||
1ba28e2b | 52 | static const char *db_opts[] = { "", "USE_DB", "USE_GDBM", "USE_TDB" }; |
059ec3d9 PH |
53 | |
54 | static int have_ipv6 = 0; | |
55 | static int have_iconv = 0; | |
56 | ||
57 | static char errno_quota[256]; | |
58 | static char ostype[256]; | |
59 | static char cc[256]; | |
60 | ||
61 | /* If any entry is an initial substring of another, the longer one must | |
62 | appear first. */ | |
63 | ||
64 | static have_item have_list[] = { | |
65 | { "HAVE_IPV6", &have_ipv6 }, | |
66 | { "HAVE_ICONV", &have_iconv }, | |
67 | { NULL, NULL} | |
68 | }; | |
69 | ||
70 | static save_item save_list[] = { | |
71 | { "ERRNO_QUOTA", errno_quota }, | |
72 | { "OSTYPE", ostype }, | |
73 | { "CC", cc }, | |
74 | { NULL, NULL} | |
75 | }; | |
76 | ||
77 | ||
78 | /* Subroutine to check a string for precisely one instance of "%s". If not, | |
79 | bomb out. */ | |
80 | ||
81 | void | |
82 | check_percent_ess(char *value, char *name) | |
83 | { | |
84 | int OK = 0; | |
85 | char *p = strstr(value, "%s"); | |
86 | if (p != NULL) OK = strstr(p+2, "%s") == NULL; | |
87 | if (!OK) | |
88 | { | |
89 | printf("\n*** \"%s\" (%s) must contain precisely one occurrence of\n" | |
90 | "*** \"%%s\". Please review your build-time configuration.\n\n/", value, | |
91 | name); | |
92 | exit(1); | |
93 | } | |
94 | } | |
95 | ||
96 | ||
97 | /* Main program */ | |
98 | ||
99 | int | |
100 | main(int argc, char **argv) | |
101 | { | |
b1c749bb | 102 | off_t test_off_t = 0; |
c6c2dc1d | 103 | time_t test_time_t = 0; |
b3c261f7 | 104 | #if ! (__STDC_VERSION__ >= 199901L) |
73a46702 PP |
105 | size_t test_size_t = 0; |
106 | unsigned long test_ulong_t = 0L; | |
b3c261f7 | 107 | #endif |
73a46702 | 108 | long test_long_t = 0; |
059ec3d9 PH |
109 | FILE *base; |
110 | FILE *new; | |
111 | int last_initial = 'A'; | |
112 | int linecount = 0; | |
113 | int have_auth = 0; | |
114 | int in_local_makefile = 0; | |
115 | int use_which_db = 0; | |
116 | int use_which_db_in_local_makefile = 0; | |
117 | int support_crypteq = 0; | |
118 | char buffer[1024]; | |
119 | ||
120 | if (argc != 1) | |
121 | { | |
122 | printf("*** Buildconfig: called with incorrect arguments\n"); | |
123 | exit(1); | |
124 | } | |
125 | ||
126 | new = fopen("config.h", "wb"); | |
127 | if (new == NULL) | |
128 | { | |
129 | printf("*** Buildconfig: failed to open config.h for output\n"); | |
130 | exit(1); | |
131 | } | |
132 | ||
133 | printf("Building configuration file config.h\n"); | |
134 | ||
135 | fprintf(new, "/*************************************************\n"); | |
136 | fprintf(new, "* Configuration header for Exim *\n"); | |
137 | fprintf(new, "*************************************************/\n\n"); | |
138 | ||
139 | fprintf(new, "/* This file was automatically generated from Makefile and " | |
140 | "config.h.defaults,\n"); | |
141 | fprintf(new, "using values specified in the configuration file Local/Makefile.\n"); | |
142 | fprintf(new, "Do not edit it. Instead, edit Local/Makefile and " | |
143 | "rerun make. */\n\n"); | |
144 | ||
b1c749bb PH |
145 | /* First, deal with the printing format for off_t variables. We assume that if |
146 | the size of off_t is greater than 4, "%lld" will be available as a format for | |
147 | printing long long variables, and there will be support for the long long type. | |
148 | This assumption is known to be OK for the common operating systems. */ | |
149 | ||
150 | fprintf(new, "#ifndef OFF_T_FMT\n"); | |
73a46702 | 151 | if (sizeof(test_off_t) > sizeof(test_long_t)) |
b1c749bb PH |
152 | { |
153 | fprintf(new, "#define OFF_T_FMT \"%%lld\"\n"); | |
c6c2dc1d | 154 | fprintf(new, "#define LONGLONG_T long long int\n"); |
b1c749bb PH |
155 | } |
156 | else | |
157 | { | |
158 | fprintf(new, "#define OFF_T_FMT \"%%ld\"\n"); | |
c6c2dc1d PH |
159 | fprintf(new, "#define LONGLONG_T long int\n"); |
160 | } | |
161 | fprintf(new, "#endif\n\n"); | |
162 | ||
163 | /* Now do the same thing for time_t variables. If the length is greater than | |
164 | 4, we want to assume long long support (even if off_t was less than 4). If the | |
165 | length is 4 or less, we can leave LONGLONG_T to whatever was defined above for | |
166 | off_t. */ | |
167 | ||
168 | fprintf(new, "#ifndef TIME_T_FMT\n"); | |
73a46702 | 169 | if (sizeof(test_time_t) > sizeof(test_long_t)) |
c6c2dc1d PH |
170 | { |
171 | fprintf(new, "#define TIME_T_FMT \"%%lld\"\n"); | |
172 | fprintf(new, "#undef LONGLONG_T\n"); | |
173 | fprintf(new, "#define LONGLONG_T long long int\n"); | |
174 | } | |
175 | else | |
176 | { | |
177 | fprintf(new, "#define TIME_T_FMT \"%%ld\"\n"); | |
b1c749bb PH |
178 | } |
179 | fprintf(new, "#endif\n\n"); | |
180 | ||
73a46702 PP |
181 | /* And for sizeof() results, size_t, which should with C99 be just %zu, deal |
182 | with C99 not being ubiquitous yet. Unfortunately. */ | |
183 | ||
184 | #if __STDC_VERSION__ >= 199901L | |
185 | fprintf(new, "#define SIZE_T_FMT \"%%zu\"\n"); | |
186 | #else | |
73a46702 PP |
187 | if (sizeof(test_size_t) > sizeof (test_ulong_t)) |
188 | fprintf(new, "#define SIZE_T_FMT \"%%llu\"\n"); | |
189 | else | |
190 | fprintf(new, "#define SIZE_T_FMT \"%%lu\"\n"); | |
73a46702 PP |
191 | #endif |
192 | ||
b1c749bb | 193 | /* Now search the makefile for certain settings */ |
059ec3d9 PH |
194 | |
195 | base = fopen("Makefile", "rb"); | |
196 | if (base == NULL) | |
197 | { | |
198 | printf("*** Buildconfig: failed to open Makefile\n"); | |
f1e894f3 | 199 | (void)fclose(new); |
059ec3d9 PH |
200 | exit(1); |
201 | } | |
202 | ||
203 | errno_quota[0] = 0; /* no over-riding value set */ | |
204 | ostype[0] = 0; /* just in case */ | |
205 | cc[0] = 0; | |
206 | ||
207 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
208 | { | |
209 | int i; | |
210 | have_item *h; | |
211 | save_item *s; | |
212 | char *p = buffer + (int)strlen(buffer); | |
213 | linecount++; | |
214 | while (p > buffer && isspace((unsigned char)p[-1])) p--; | |
215 | *p = 0; | |
216 | p = buffer; | |
217 | while (isspace((unsigned char)*p)) p++; | |
218 | ||
219 | /* Notice when we hit the user's makefile */ | |
220 | ||
221 | if (strcmp(p, "# From Local/Makefile") == 0) | |
222 | { | |
223 | in_local_makefile = 1; | |
224 | continue; | |
225 | } | |
226 | ||
227 | /* Remember the last DB option setting. If we hit two in the user's | |
228 | Makefile, complain. */ | |
229 | ||
230 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
231 | { | |
232 | int len = (int)strlen(db_opts[i]); | |
233 | if (strncmp(p, db_opts[i], len) == 0 && (p[len] == ' ' || p[len] == '=')) | |
234 | { | |
235 | if (in_local_makefile) | |
236 | { | |
237 | if (use_which_db_in_local_makefile) | |
238 | { | |
239 | printf("*** Only one of USE_DB, USE_GDBM, or USE_TDB should be " | |
240 | "defined in Local/Makefile\n"); | |
241 | exit(1); | |
242 | } | |
243 | use_which_db_in_local_makefile = 1; | |
244 | } | |
245 | use_which_db = i; | |
246 | break; | |
247 | } | |
248 | } | |
249 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
250 | ||
251 | /* Items where we just save a boolean */ | |
252 | ||
253 | for (h = have_list; h->name != NULL; h++) | |
254 | { | |
255 | int len = (int)strlen(h->name); | |
256 | if (strncmp(p, h->name, len) == 0) | |
257 | { | |
258 | p += len; | |
259 | while (isspace((unsigned char)*p)) p++; | |
260 | if (*p++ != '=') | |
261 | { | |
262 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
263 | exit(1); | |
264 | } | |
265 | while (isspace((unsigned char)*p)) p++; | |
266 | if (strcmp(p, "YES") == 0 || strcmp(p, "yes") == 0) *(h->flag) = 1; | |
267 | else *(h->flag) = 0; /* Must reset in case multiple instances */ | |
268 | break; | |
269 | } | |
270 | } | |
271 | ||
272 | if (h->name != NULL) continue; | |
273 | ||
274 | /* Items where we save the complete string */ | |
275 | ||
276 | for (s = save_list; s->name != NULL; s++) | |
277 | { | |
278 | int len = (int)strlen(s->name); | |
279 | if (strncmp(p, s->name, len) == 0) | |
280 | { | |
281 | p += len; | |
282 | while (isspace((unsigned char)*p)) p++; | |
283 | if (*p++ != '=') | |
284 | { | |
285 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
286 | exit(1); | |
287 | } | |
288 | while (isspace((unsigned char)*p)) p++; | |
289 | strcpy(s->data, p); | |
290 | } | |
291 | } | |
292 | } | |
293 | ||
294 | fprintf(new, "#define HAVE_IPV6 %s\n", | |
295 | have_ipv6? "TRUE" : "FALSE"); | |
296 | ||
297 | fprintf(new, "#define HAVE_ICONV %s\n", | |
298 | have_iconv? "TRUE" : "FALSE"); | |
299 | ||
300 | if (errno_quota[0] != 0) | |
301 | fprintf(new, "\n#define ERRNO_QUOTA %s\n", errno_quota); | |
302 | ||
2548ba04 PH |
303 | if (strcmp(cc, "gcc") == 0 && |
304 | (strstr(ostype, "IRIX") != NULL || strstr(ostype, "AIX") != NULL)) | |
059ec3d9 PH |
305 | { |
306 | fprintf(new, "\n/* This switch includes the code to fix the inet_ntoa() */"); | |
2548ba04 | 307 | fprintf(new, "\n/* bug when using gcc on an IRIX or AIX system. */"); |
059ec3d9 PH |
308 | fprintf(new, "\n#define USE_INET_NTOA_FIX"); |
309 | } | |
310 | ||
311 | fprintf(new, "\n"); | |
f1e894f3 | 312 | (void)fclose(base); |
059ec3d9 PH |
313 | |
314 | ||
315 | /* Now handle the macros listed in the defaults */ | |
316 | ||
317 | base = fopen("../src/config.h.defaults", "rb"); | |
318 | if (base == NULL) | |
319 | { | |
320 | printf("*** Buildconfig: failed to open ../src/config.h.defaults\n"); | |
f1e894f3 | 321 | (void)fclose(new); |
059ec3d9 PH |
322 | exit(1); |
323 | } | |
324 | ||
325 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
326 | { | |
327 | int i; | |
328 | char name[256]; | |
329 | char *value; | |
330 | char *p = buffer; | |
331 | char *q = name; | |
332 | ||
333 | while (*p == ' ' || *p == '\t') p++; | |
334 | ||
335 | if (strncmp(p, "#define ", 8) != 0) continue; | |
336 | ||
337 | p += 8; | |
338 | while (*p == ' ' || *p == '\t') p++; | |
339 | ||
340 | if (*p < last_initial) fprintf(new, "\n"); | |
341 | last_initial = *p; | |
342 | ||
343 | while (*p && (isalnum((unsigned char)*p) || *p == '_')) *q++ = *p++; | |
344 | *q = 0; | |
345 | ||
346 | /* USE_DB, USE_GDBM, and USE_TDB are special cases. We want to have only | |
347 | one of them set. The scan of the Makefile has saved which was the last one | |
348 | encountered. */ | |
349 | ||
350 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
351 | { | |
352 | if (strcmp(name, db_opts[i]) == 0) | |
353 | { | |
354 | if (use_which_db == i) | |
355 | fprintf(new, "#define %s %.*syes\n", db_opts[i], | |
356 | 21 - (int)strlen(db_opts[i]), " "); | |
357 | else | |
358 | fprintf(new, "/* %s not set */\n", name); | |
359 | break; | |
360 | } | |
361 | } | |
362 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
363 | ||
364 | /* EXIM_USER is a special case. We look in the environment for EXIM_USER or | |
365 | EXIM_UID (the latter for backward compatibility with Exim 3). If the value is | |
366 | not numeric, we look up the user, and default the GID if found. Otherwise, | |
367 | EXIM_GROUP or EXIM_GID must be in the environment. */ | |
368 | ||
369 | if (strcmp(name, "EXIM_UID") == 0) | |
370 | { | |
371 | uid_t uid = 0; | |
372 | gid_t gid = 0; | |
373 | int gid_set = 0; | |
10385c15 | 374 | int uid_not_set = 0; |
059ec3d9 PH |
375 | char *username = NULL; |
376 | char *groupname = NULL; | |
377 | char *s; | |
378 | char *user = getenv("EXIM_USER"); | |
379 | char *group = getenv("EXIM_GROUP"); | |
380 | ||
381 | if (user == NULL) user = getenv("EXIM_UID"); | |
382 | if (group == NULL) group = getenv("EXIM_GID"); | |
383 | ||
384 | if (user == NULL) | |
385 | { | |
386 | printf("\n*** EXIM_USER has not been defined in any of the Makefiles in " | |
387 | "the\n \"Local\" directory. Please review your build-time " | |
388 | "configuration.\n\n"); | |
389 | return 1; | |
390 | } | |
391 | ||
392 | while (isspace((unsigned char)(*user))) user++; | |
393 | if (*user == 0) | |
394 | { | |
395 | printf("\n*** EXIM_USER is defined as an empty string in one of the " | |
396 | "files\n in the \"Local\" directory. Please review your build-time" | |
397 | "\n configuration.\n\n"); | |
398 | return 1; | |
399 | } | |
400 | ||
401 | for (s = user; *s != 0; s++) | |
402 | { | |
403 | if (iscntrl((unsigned char)(*s))) | |
404 | { | |
405 | printf("\n*** EXIM_USER contains the control character 0x%02X in one " | |
406 | "of the files\n in the \"Local\" directory. Please review your " | |
407 | "build-time\n configuration.\n\n", *s); | |
408 | return 1; | |
409 | } | |
410 | } | |
411 | ||
412 | /* Numeric uid given */ | |
413 | ||
414 | if (user[strspn(user, "0123456789")] == 0) | |
415 | { | |
416 | uid = (uid_t)atoi(user); | |
417 | } | |
418 | ||
419 | /* User name given. Normally, we look up the uid right away. However, | |
420 | people building binary distributions sometimes want to retain the name till | |
421 | runtime. This is supported if the name begins "ref:". */ | |
422 | ||
423 | else if (strncmp(user, "ref:", 4) == 0) | |
424 | { | |
425 | user += 4; | |
426 | while (isspace(*user)) user++; | |
427 | username = user; | |
428 | gid_set = 1; | |
10385c15 | 429 | uid_not_set = 1; |
059ec3d9 PH |
430 | } |
431 | ||
432 | else | |
433 | { | |
434 | struct passwd *pw = getpwnam(user); | |
435 | if (pw == NULL) | |
436 | { | |
437 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
438 | "exist.\n Please review your build-time configuration.\n\n", | |
439 | user); | |
440 | return 1; | |
441 | } | |
442 | ||
443 | uid = pw->pw_uid; | |
444 | gid = pw->pw_gid; | |
445 | gid_set = 1; | |
446 | } | |
447 | ||
448 | /* Use explicit group if set. */ | |
449 | ||
450 | if (group != NULL) | |
451 | { | |
452 | while (isspace((unsigned char)(*group))) group++; | |
453 | if (*group == 0) | |
454 | { | |
455 | printf("\n*** EXIM_GROUP is defined as an empty string in one of " | |
456 | "the files in the\n \"Local\" directory. "); | |
457 | if (gid_set) | |
458 | { | |
459 | printf("If you want the Exim group to be taken from the\n " | |
460 | "password data for the Exim user, just remove the EXIM_GROUP " | |
461 | "setting.\n Otherwise, p"); | |
462 | } | |
463 | else printf("EXIM_USER is defined numerically, so there is no" | |
464 | "\n default for EXIM_GROUP and you must set it explicitly.\n P"); | |
465 | printf("lease review your build-time configuration.\n\n"); | |
466 | return 1; | |
467 | } | |
468 | ||
469 | for (s = group; *s != 0; s++) | |
470 | { | |
471 | if (iscntrl((unsigned char)(*s))) | |
472 | { | |
473 | printf("\n*** EXIM_GROUP contains the control character 0x%02X in one " | |
474 | "of the files\n in the \"Local\" directory. Please review your " | |
475 | "build-time\n configuration.\n\n", *s); | |
476 | return 1; | |
477 | } | |
478 | } | |
479 | ||
480 | /* Group name given. This may be by reference or to be looked up now, | |
481 | as for user. */ | |
482 | ||
483 | if (strncmp(group, "ref:", 4) == 0) | |
484 | { | |
485 | group += 4; | |
486 | while (isspace(*group)) group++; | |
487 | groupname = group; | |
488 | } | |
489 | ||
490 | else if (username != NULL) | |
491 | { | |
492 | groupname = group; | |
493 | } | |
494 | ||
495 | else if (group[strspn(group, "0123456789")] == 0) | |
496 | { | |
497 | gid = (gid_t)atoi(group); | |
498 | } | |
499 | ||
500 | else | |
501 | { | |
502 | struct group *gr = getgrnam(group); | |
503 | if (gr == NULL) | |
504 | { | |
505 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does " | |
506 | "not exist.\n Please review your build-time configuration.\n\n", | |
507 | group); | |
508 | return 1; | |
509 | } | |
510 | gid = gr->gr_gid; | |
511 | } | |
512 | } | |
513 | ||
514 | /* Else trouble unless found in passwd file with user */ | |
515 | ||
516 | else if (!gid_set) | |
517 | { | |
518 | printf("\n*** No group set for Exim. Please review your build-time " | |
519 | "configuration.\n\n"); | |
520 | return 1; | |
521 | } | |
522 | ||
10385c15 PP |
523 | /* security sanity checks |
524 | if ref: is being used, we can never be sure, but we can take reasonable | |
525 | steps to filter out the most obvious ones. */ | |
526 | ||
527 | if ((!uid_not_set && uid == 0) || | |
655c5895 PP |
528 | ((username != NULL) && ( |
529 | (strcmp(username, "root") == 0) || | |
530 | (strcmp(username, "toor") == 0) ))) | |
10385c15 PP |
531 | { |
532 | printf("\n*** Exim's internal user must not be root.\n\n"); | |
533 | return 1; | |
534 | } | |
535 | ||
059ec3d9 PH |
536 | /* Output user and group names or uid/gid. When names are set, uid/gid |
537 | are set to zero but will be replaced at runtime. */ | |
538 | ||
539 | if (username != NULL) | |
540 | fprintf(new, "#define EXIM_USERNAME \"%s\"\n", username); | |
541 | if (groupname != NULL) | |
542 | fprintf(new, "#define EXIM_GROUPNAME \"%s\"\n", groupname); | |
543 | ||
544 | fprintf(new, "#define EXIM_UID %d\n", (int)uid); | |
545 | fprintf(new, "#define EXIM_GID %d\n", (int)gid); | |
546 | continue; | |
547 | } | |
548 | ||
35edf2ff PH |
549 | /* CONFIGURE_OWNER and CONFIGURE_GROUP are special cases. We look in the |
550 | environment for first. If the value is not numeric, we look up the user or | |
551 | group. A lot of this code is similar to that for EXIM_USER, but it's easier | |
552 | to keep it separate. */ | |
059ec3d9 | 553 | |
35edf2ff PH |
554 | if (strcmp(name, "CONFIGURE_OWNER") == 0 || |
555 | strcmp(name, "CONFIGURE_GROUP") == 0) | |
059ec3d9 | 556 | { |
8e669ac1 | 557 | int isgroup = name[10] == 'G'; |
059ec3d9 | 558 | uid_t uid = 0; |
8e669ac1 | 559 | gid_t gid = 0; |
1ba28e2b PP |
560 | const char *s; |
561 | const char *username = NULL; | |
562 | const char *user = getenv(name); | |
059ec3d9 PH |
563 | |
564 | if (user == NULL) user = ""; | |
565 | while (isspace((unsigned char)(*user))) user++; | |
566 | if (*user == 0) | |
567 | { | |
568 | fprintf(new, "/* %s not set */\n", name); | |
569 | continue; | |
570 | } | |
571 | ||
572 | for (s = user; *s != 0; s++) | |
573 | { | |
574 | if (iscntrl((unsigned char)(*s))) | |
575 | { | |
35edf2ff | 576 | printf("\n*** %s contains the control character 0x%02X in " |
059ec3d9 | 577 | "one of the files\n in the \"Local\" directory. Please review " |
35edf2ff | 578 | "your build-time\n configuration.\n\n", name, *s); |
059ec3d9 PH |
579 | return 1; |
580 | } | |
581 | } | |
582 | ||
583 | /* Numeric uid given */ | |
584 | ||
585 | if (user[strspn(user, "0123456789")] == 0) | |
586 | { | |
35edf2ff PH |
587 | if (isgroup) |
588 | gid = (gid_t)atoi(user); | |
8e669ac1 | 589 | else |
35edf2ff | 590 | uid = (uid_t)atoi(user); |
059ec3d9 PH |
591 | } |
592 | ||
35edf2ff | 593 | /* Name given. Normally, we look up the uid or gid right away. However, |
059ec3d9 PH |
594 | people building binary distributions sometimes want to retain the name till |
595 | runtime. This is supported if the name begins "ref:". */ | |
596 | ||
597 | else if (strncmp(user, "ref:", 4) == 0) | |
598 | { | |
599 | user += 4; | |
600 | while (isspace(*user)) user++; | |
601 | username = user; | |
602 | } | |
1ba28e2b | 603 | else if (isgroup) |
35edf2ff PH |
604 | { |
605 | struct group *gr = getgrnam(user); | |
606 | if (gr == NULL) | |
607 | { | |
608 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does not " | |
609 | "exist.\n Please review your build-time configuration.\n\n", | |
610 | user); | |
611 | return 1; | |
612 | } | |
613 | gid = gr->gr_gid; | |
614 | } | |
615 | ||
059ec3d9 PH |
616 | else |
617 | { | |
618 | struct passwd *pw = getpwnam(user); | |
619 | if (pw == NULL) | |
620 | { | |
621 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
622 | "exist.\n Please review your build-time configuration.\n\n", | |
623 | user); | |
624 | return 1; | |
625 | } | |
059ec3d9 PH |
626 | uid = pw->pw_uid; |
627 | } | |
628 | ||
629 | /* Output user and group names or uid/gid. When names are set, uid/gid | |
630 | are set to zero but will be replaced at runtime. */ | |
631 | ||
632 | if (username != NULL) | |
35edf2ff PH |
633 | { |
634 | if (isgroup) | |
635 | fprintf(new, "#define CONFIGURE_GROUPNAME \"%s\"\n", username); | |
8e669ac1 | 636 | else |
35edf2ff PH |
637 | fprintf(new, "#define CONFIGURE_OWNERNAME \"%s\"\n", username); |
638 | } | |
8e669ac1 | 639 | |
35edf2ff PH |
640 | if (isgroup) |
641 | fprintf(new, "#define CONFIGURE_GROUP %d\n", (int)gid); | |
8e669ac1 | 642 | else |
35edf2ff | 643 | fprintf(new, "#define CONFIGURE_OWNER %d\n", (int)uid); |
059ec3d9 PH |
644 | continue; |
645 | } | |
646 | ||
647 | /* FIXED_NEVER_USERS is another special case. Look up the uid values and | |
648 | create suitable initialization data for a vector. */ | |
649 | ||
650 | if (strcmp(name, "FIXED_NEVER_USERS") == 0) | |
651 | { | |
652 | char *list = getenv("FIXED_NEVER_USERS"); | |
653 | if (list == NULL) | |
654 | { | |
655 | fprintf(new, "#define FIXED_NEVER_USERS 0\n"); | |
656 | } | |
657 | else | |
658 | { | |
659 | int count = 1; | |
926e1192 | 660 | int i, j; |
059ec3d9 PH |
661 | uid_t *vector; |
662 | char *p = list; | |
663 | while (*p != 0) if (*p++ == ':') count++; | |
664 | ||
665 | vector = malloc((count+1) * sizeof(uid_t)); | |
666 | vector[0] = (uid_t)count; | |
667 | ||
926e1192 | 668 | for (i = 1, j = 0; i <= count; list++, i++) |
059ec3d9 PH |
669 | { |
670 | char name[64]; | |
8e669ac1 | 671 | |
059ec3d9 PH |
672 | p = list; |
673 | while (*list != 0 && *list != ':') list++; | |
674 | strncpy(name, p, list-p); | |
675 | name[list-p] = 0; | |
8e669ac1 | 676 | |
926e1192 PH |
677 | if (name[0] == 0) |
678 | { | |
8e669ac1 PH |
679 | continue; |
680 | } | |
926e1192 | 681 | else if (name[strspn(name, "0123456789")] == 0) |
059ec3d9 | 682 | { |
926e1192 | 683 | vector[j++] = (uid_t)atoi(name); |
059ec3d9 PH |
684 | } |
685 | else | |
686 | { | |
687 | struct passwd *pw = getpwnam(name); | |
688 | if (pw == NULL) | |
689 | { | |
690 | printf("\n*** User \"%s\" (specified for FIXED_NEVER_USERS in one of the Makefiles) does not " | |
691 | "exist.\n Please review your build-time configuration.\n\n", | |
692 | name); | |
693 | return 1; | |
694 | } | |
926e1192 | 695 | vector[j++] = pw->pw_uid; |
059ec3d9 PH |
696 | } |
697 | } | |
926e1192 PH |
698 | fprintf(new, "#define FIXED_NEVER_USERS %d", j); |
699 | for (i = 0; i < j; i++) fprintf(new, ", %d", (unsigned int)vector[i]); | |
700 | fprintf(new, "\n"); | |
059ec3d9 PH |
701 | } |
702 | continue; | |
703 | } | |
704 | ||
8e669ac1 PH |
705 | /* WITH_CONTENT_SCAN is another special case: it must be set if either it or |
706 | WITH_OLD_DEMIME is set. */ | |
c6e692d7 PH |
707 | |
708 | if (strcmp(name, "WITH_CONTENT_SCAN") == 0) | |
709 | { | |
710 | char *wcs = getenv("WITH_CONTENT_SCAN"); | |
711 | char *wod = getenv("WITH_OLD_DEMIME"); | |
6a8f9482 TK |
712 | char *dcc = getenv("EXPERIMENTAL_DCC"); |
713 | if (wcs != NULL || wod != NULL || dcc != NULL) | |
c6e692d7 PH |
714 | fprintf(new, "#define WITH_CONTENT_SCAN yes\n"); |
715 | else fprintf(new, "/* WITH_CONTENT_SCAN not set */\n"); | |
716 | continue; | |
8e669ac1 | 717 | } |
c6e692d7 | 718 | |
059ec3d9 PH |
719 | /* Otherwise, check whether a value exists in the environment. Remember if |
720 | it is an AUTH setting or SUPPORT_CRYPTEQ. */ | |
721 | ||
722 | if ((value = getenv(name)) != NULL) | |
723 | { | |
724 | int len; | |
725 | len = 21 - (int)strlen(name); | |
726 | ||
727 | if (strncmp(name, "AUTH_", 5) == 0) have_auth = 1; | |
728 | if (strncmp(name, "SUPPORT_CRYPTEQ", 15) == 0) support_crypteq = 1; | |
729 | ||
730 | /* The text value of LDAP_LIB_TYPE refers to a macro that gets set. */ | |
731 | ||
732 | if (strcmp(name, "LDAP_LIB_TYPE") == 0) | |
733 | { | |
734 | if (strcmp(value, "NETSCAPE") == 0 || | |
735 | strcmp(value, "UMICHIGAN") == 0 || | |
736 | strcmp(value, "OPENLDAP1") == 0 || | |
737 | strcmp(value, "OPENLDAP2") == 0 || | |
738 | strcmp(value, "SOLARIS") == 0 || | |
739 | strcmp(value, "SOLARIS7") == 0) /* Compatibility */ | |
740 | { | |
741 | fprintf(new, "#define LDAP_LIB_%s\n", value); | |
742 | } | |
743 | else | |
744 | { | |
745 | printf("\n*** LDAP_LIB_TYPE=%s is not a recognized LDAP library type." | |
746 | "\n*** Please review your build-time configuration.\n\n", value); | |
747 | return 1; | |
748 | } | |
749 | } | |
750 | ||
751 | else if (strcmp(name, "RADIUS_LIB_TYPE") == 0) | |
752 | { | |
753 | if (strcmp(value, "RADIUSCLIENT") == 0 || | |
7766a4f0 | 754 | strcmp(value, "RADIUSCLIENTNEW") == 0 || |
059ec3d9 PH |
755 | strcmp(value, "RADLIB") == 0) |
756 | { | |
757 | fprintf(new, "#define RADIUS_LIB_%s\n", value); | |
758 | } | |
759 | else | |
760 | { | |
761 | printf("\n*** RADIUS_LIB_TYPE=%s is not a recognized RADIUS library type." | |
762 | "\n*** Please review your build-time configuration.\n\n", value); | |
763 | return 1; | |
764 | } | |
765 | } | |
766 | ||
767 | /* Other macros get set to the environment value. */ | |
768 | ||
769 | else | |
770 | { | |
771 | fprintf(new, "#define %s ", name); | |
772 | while(len-- > 0) fputc(' ', new); | |
773 | ||
774 | /* LOG_FILE_PATH is now messy because it can be a path containing %s or | |
775 | it can be "syslog" or ":syslog" or "syslog:path" or even "path:syslog". */ | |
776 | ||
777 | if (strcmp(name, "LOG_FILE_PATH") == 0) | |
778 | { | |
779 | char *ss = value; | |
780 | for(;;) | |
781 | { | |
782 | char *pp; | |
783 | char *sss = strchr(ss, ':'); | |
784 | if (sss != NULL) | |
785 | { | |
786 | strncpy(buffer, ss, sss-ss); | |
787 | buffer[sss-ss] = 0; /* For empty case */ | |
788 | } | |
789 | else strcpy(buffer, ss); | |
790 | pp = buffer + (int)strlen(buffer); | |
791 | while (pp > buffer && isspace((unsigned char)pp[-1])) pp--; | |
792 | *pp = 0; | |
793 | if (buffer[0] != 0 && strcmp(buffer, "syslog") != 0) | |
794 | check_percent_ess(buffer, name); | |
795 | if (sss == NULL) break; | |
796 | ss = sss + 1; | |
797 | while (isspace((unsigned char)*ss)) ss++; | |
798 | } | |
799 | fprintf(new, "\"%s\"\n", value); | |
800 | } | |
801 | ||
a7cbbf50 PP |
802 | /* Timezone values HEADERS_CHARSET, TCP_WRAPPERS_DAEMON_NAME and |
803 | WHITELIST_D_MACROS get quoted */ | |
059ec3d9 PH |
804 | |
805 | else if (strcmp(name, "TIMEZONE_DEFAULT") == 0|| | |
5dc43717 | 806 | strcmp(name, "TCP_WRAPPERS_DAEMON_NAME") == 0|| |
a7cbbf50 PP |
807 | strcmp(name, "HEADERS_CHARSET") == 0|| |
808 | strcmp(name, "WHITELIST_D_MACROS") == 0) | |
059ec3d9 PH |
809 | fprintf(new, "\"%s\"\n", value); |
810 | ||
811 | /* For others, quote any paths and don't quote anything else */ | |
812 | ||
813 | else | |
814 | { | |
815 | if (value[0] == '/') fprintf(new, "\"%s\"\n", value); | |
816 | else fprintf(new, "%s\n", value); | |
817 | } | |
818 | } | |
819 | } | |
820 | ||
821 | /* Value not defined in the environment; use the default */ | |
822 | ||
823 | else | |
824 | { | |
825 | char *t = p; | |
826 | while (*p == ' ' || *p == '\t') p++; | |
827 | if (*p != '\n') fputs(buffer, new); else | |
828 | { | |
829 | *t = 0; | |
830 | if (strcmp(name, "BIN_DIRECTORY") == 0 || | |
831 | strcmp(name, "CONFIGURE_FILE") == 0) | |
832 | { | |
833 | printf("\n*** %s has not been defined in any of the Makefiles in the\n" | |
834 | " \"Local\" directory. " | |
835 | "Please review your build-time configuration.\n\n", name); | |
836 | return 1; | |
837 | } | |
838 | ||
839 | if (strcmp(name, "TIMEZONE_DEFAULT") == 0) | |
840 | { | |
841 | char *tz = getenv("TZ"); | |
842 | fprintf(new, "#define TIMEZONE_DEFAULT "); | |
843 | if (tz == NULL) fprintf(new, "NULL\n"); else | |
844 | fprintf(new, "\"%s\"\n", tz); | |
845 | } | |
846 | ||
847 | else fprintf(new, "/* %s not set */\n", name); | |
848 | } | |
849 | } | |
850 | } | |
851 | ||
f1e894f3 | 852 | (void)fclose(base); |
059ec3d9 PH |
853 | |
854 | /* If any AUTH macros were defined, ensure that SUPPORT_CRYPTEQ is also | |
855 | defined. */ | |
856 | ||
857 | if (have_auth) | |
858 | { | |
859 | if (!support_crypteq) fprintf(new, "/* Force SUPPORT_CRYPTEQ for AUTH */\n" | |
860 | "#define SUPPORT_CRYPTEQ\n"); | |
861 | } | |
862 | ||
863 | /* End off */ | |
864 | ||
865 | fprintf(new, "\n/* End of config.h */\n"); | |
f1e894f3 | 866 | (void)fclose(new); |
059ec3d9 PH |
867 | return 0; |
868 | } | |
869 | ||
870 | /* End of buildconfig.c */ |