9 #include "auto_qmail.h"
13 #define FATAL "newaliases: fatal: "
17 strerr_die2x(111,FATAL,"out of memory");
21 strerr_die2x(100,FATAL,"NUL bytes are not permitted");
25 strerr_die2x(100,FATAL,"addresses over 800 bytes are not permitted");
29 strerr_die2sys(111,FATAL,"unable to write to /etc/aliases.tmp: ");
33 strerr_die2sys(111,FATAL,"unable to read /etc/aliases: ");
37 strerr_die2sys(111,FATAL,"unable to read controls: ");
41 stralloc defaulthost = {0};
42 stralloc defaultdomain = {0};
43 stralloc plusdomain = {0};
50 fddir = open_read(".");
52 strerr_die2sys(111,FATAL,"unable to open current directory: ");
54 if (chdir(auto_qmail) == -1)
55 strerr_die4sys(111,FATAL,"unable to chdir to ",auto_qmail,": ");
57 r = control_readline(&me,"control/me");
58 if (r == -1) die_control();
59 if (!r) if (!stralloc_copys(&me,"me")) nomem();
61 r = control_readline(&defaultdomain,"control/defaultdomain");
62 if (r == -1) die_control();
63 if (!r) if (!stralloc_copy(&defaultdomain,&me)) nomem();
65 r = control_readline(&defaulthost,"control/defaulthost");
66 if (r == -1) die_control();
67 if (!r) if (!stralloc_copy(&defaulthost,&me)) nomem();
69 r = control_readline(&plusdomain,"control/plusdomain");
70 if (r == -1) die_control();
71 if (!r) if (!stralloc_copy(&plusdomain,&me)) nomem();
73 if (fchdir(fddir) == -1)
74 strerr_die2sys(111,FATAL,"unable to set current directory: ");
77 stralloc target = {0};
78 stralloc fulltarget = {0};
82 token822_alloc toks = {0};
83 token822_alloc tokaddr = {0};
84 stralloc address = {0};
88 token822_reverse(&tokaddr);
89 if (token822_unquote(&address,&tokaddr) != 1) nomem();
93 strerr_die2x(111,FATAL,"empty :include: filenames not permitted");
94 if (byte_chr(address.s,address.len,'\0') < address.len)
95 strerr_die2x(111,FATAL,"NUL not permitted in :include: filenames");
97 if ((address.s[0] != '.') && (address.s[0] != '/'))
98 if (!stralloc_cats(&instr,"./")) nomem();
99 if (!stralloc_cat(&instr,&address)) nomem();
100 if (!stralloc_cats(&instr,".bin")) nomem();
101 if (!stralloc_0(&instr)) nomem();
110 token822_reverse(&tokaddr);
111 if (token822_unquote(&address,&tokaddr) != 1) nomem();
114 strerr_die2x(111,FATAL,"empty recipient addresses not permitted");
117 for (i = 0;i < tokaddr.len;++i)
118 if (tokaddr.t[i].type == TOKEN822_AT)
123 if (!address.len) return;
126 if (address.s[0] == '/') {
127 if (!stralloc_0(&address)) nomem();
128 strerr_die4x(111,FATAL,"file delivery ",address.s," not supported");
131 if (address.s[0] == '|') {
132 if (byte_chr(address.s,address.len,'\0') < address.len)
133 strerr_die2x(111,FATAL,"NUL not permitted in program names");
134 if (!stralloc_cats(&instr,"!")) nomem();
135 if (!stralloc_catb(&instr,address.s + 1,address.len - 1)) nomem();
136 if (!stralloc_0(&instr)) nomem();
142 if (!stralloc_cats(&instr,"&")) nomem();
143 if (!stralloc_cat(&instr,&fulltarget)) nomem();
144 if (!stralloc_0(&instr)) nomem();
148 if (!stralloc_cats(&address,"@")) nomem();
150 if (!stralloc_copy(&target,&address)) nomem();
151 if (!stralloc_copy(&fulltarget,&address)) nomem();
153 if (fulltarget.s[fulltarget.len - 1] == '@')
154 if (!stralloc_cat(&fulltarget,&defaulthost)) nomem();
155 if (fulltarget.s[fulltarget.len - 1] == '+') {
156 fulltarget.s[fulltarget.len - 1] = '.';
157 if (!stralloc_cat(&fulltarget,&plusdomain)) nomem();
161 for (i = 0;i < fulltarget.len;++i) if (fulltarget.s[i] == '@') j = i;
162 for (i = j;i < fulltarget.len;++i) if (fulltarget.s[i] == '.') break;
163 if (i == fulltarget.len) {
164 if (!stralloc_cats(&fulltarget,".")) nomem();
165 if (!stralloc_cat(&fulltarget,&defaultdomain)) nomem();
168 if (fulltarget.len > 800) longaddress();
169 if (byte_chr(fulltarget.s,fulltarget.len,'\0') < fulltarget.len)
170 strerr_die2x(111,FATAL,"NUL not permitted in recipient addresses");
174 stralloc newline = {0};
179 if (!stralloc_0(&line)) nomem();
180 strerr_die3x(111,FATAL,"unable to parse this line: ",line.s);
187 struct token822 *beginning;
189 switch(token822_parse(&toks,&line,&cbuf)) {
195 t = toks.t + toks.len;
198 if (!token822_readyplus(&tokaddr,1)) nomem();
201 while (t > beginning)
202 switch((--t)->type) {
206 if (t >= beginning + 2)
207 if (t[-2].type == TOKEN822_COLON)
208 if (t[-1].type == TOKEN822_ATOM)
210 if (!byte_diff(t[-1].s,7,"include")) {
216 if (tokaddr.len) gotaddr();
217 while ((t > beginning) && (t[-1].type != TOKEN822_LEFT))
218 if (!token822_append(&tokaddr,--t)) nomem();
220 if (t <= beginning) parseerr();
222 while ((t > beginning) && ((t[-1].type == TOKEN822_COMMENT) || (t[-1].type == TOKEN822_ATOM) || (t[-1].type == TOKEN822_QUOTE) || (t[-1].type == TOKEN822_AT) || (t[-1].type == TOKEN822_DOT)))
226 case TOKEN822_ATOM: case TOKEN822_QUOTE: case TOKEN822_LITERAL:
227 if (!wordok) if (tokaddr.len) gotaddr();
229 if (!token822_append(&tokaddr,t)) nomem();
231 case TOKEN822_COMMENT:
232 /* comment is lexically a space; shouldn't affect wordok */
235 if (tokaddr.len) gotaddr();
240 if (!token822_append(&tokaddr,t)) nomem();
243 if (tokaddr.len) gotaddr();
248 struct cdbmss cdbmss;
254 if (target.len) parseerr();
258 if (!target.len) parseerr();
260 if (stralloc_starts(&target,"owner-")) {
261 if (!stralloc_copys(&key,"?")) nomem();
262 if (!stralloc_catb(&key,target.s + 6,target.len - 6)) nomem();
263 case_lowerb(key.s,key.len);
264 if (cdbmss_add(&cdbmss,key.s,key.len,fulltarget.s,fulltarget.len) == -1) writeerr();
267 if (!stralloc_copys(&key,":")) nomem();
268 if (!stralloc_cat(&key,&target)) nomem();
269 case_lowerb(key.s,key.len);
270 if (cdbmss_add(&cdbmss,key.s,key.len,instr.s,instr.len) == -1) writeerr();
280 fd = open_read("/etc/aliases");
281 if (fd == -1) readerr();
282 substdio_fdbuf(&ssin,read,fd,inbuf,sizeof inbuf);
284 fd = open_trunc("/etc/aliases.tmp");
285 if (fd == -1) strerr_die2sys(111,FATAL,"unable to create /etc/aliases.tmp: ");
286 if (cdbmss_start(&cdbmss,fd) == -1) writeerr();
288 if (!stralloc_copys(&line,"")) nomem();
291 if (getln(&ssin,&newline,&match,'\n') != 0) readerr();
293 if (match && (newline.s[0] == '\n')) continue;
295 if (match && ((newline.s[0] == ' ') || (newline.s[0] == '\t'))) {
296 if (!stralloc_cat(&line,&newline)) nomem();
301 if (line.s[0] != '#') {
302 if (!stralloc_copys(&target,"")) nomem();
303 if (!stralloc_copys(&fulltarget,"")) nomem();
304 if (!stralloc_copys(&instr,"")) nomem();
310 if (!stralloc_copy(&line,&newline)) nomem();
313 if (cdbmss_finish(&cdbmss) == -1) writeerr();
314 if (fsync(fd) == -1) writeerr();
315 if (close(fd) == -1) writeerr(); /* NFS stupidity */
317 if (rename("/etc/aliases.tmp","/etc/aliases.cdb") == -1)
318 strerr_die2sys(111,FATAL,"unable to move /etc/aliases.tmp to /etc/aliases.cdb: ");