%{
/*
- * rcfile_l.l -- lexer for the run control file
+ * rcfile_l.l -- lexer for the run control file, to be used with GNU flex.
*
* For license terms, see the file COPYING in this directory.
*/
#include "config.h"
#include "fetchmail.h"
+#include "xmalloc.h"
#include "rcfile_y.h"
int prc_lineno = 1;
+
+#ifdef LEXDEBUG
+#define SETSTATE(n) do {BEGIN(n); if (yydebug) fprintf(stderr, "Entering lexer state %d\n", n);} while (0)
+#else
+#define SETSTATE(n) BEGIN(n)
+#endif /* LEXDEBUG */
+
+#define YY_NO_INPUT
+
%}
-/* this doesn't work with Linux lex, see the INSTALL file */
-%o 7000
-%a 4000
-%p 3000
+%option nounput noyywrap
+%option warn nodefault
+%option 8bit batch
+
+%s NAME AUTH
%%
+\"[^\"]*\" |
+\'[^\']*\' {
+ char *in = xstrndup(yytext+1, yyleng-2);
+ escapes(in, in);
+ yylval.sval = in;
+ SETSTATE(0);
+ return STRING;
+ }
+
+<NAME>[^=;:, \t\r\n]+ {
+ char *in = xstrdup(yytext);
+ escapes(in, in);
+ yylval.sval = in;
+ SETSTATE(0);
+ return STRING;
+ }
+
set { return SET; }
logfile { return LOGFILE; }
idfile { return IDFILE; }
+pidfile { return PIDFILE; }
daemon { return DAEMON; }
syslog { return SYSLOG; }
invisible { return INVISIBLE; }
+showdots { return SHOWDOTS; }
postmaster { return POSTMASTER; }
+bouncemail { return BOUNCEMAIL; }
+spambounce { return SPAMBOUNCE; }
+softbounce { return SOFTBOUNCE; }
warnings { return WARNINGS; }
+tracepolls { return TRACEPOLLS; }
defaults { return DEFAULTS; }
server { return POLL; }
skip { return SKIP; }
via { return VIA; }
aka { return AKA; }
-local(domains) { return LOCALDOMAINS; }
+local(domains)? { return LOCALDOMAINS; }
proto(col)? { return PROTOCOL; }
service { return SERVICE; }
port { return PORT; }
interval { return INTERVAL; }
-auth(enticate)? { return AUTHENTICATE; }
-kerberos(_v)?4 { return KERBEROS4; }
-kerberos(_v)?5 { return KERBEROS5; }
-kerberos { return KERBEROS; }
+preauth(enticate)? { SETSTATE(AUTH); return AUTHENTICATE; }
+auth(enticate)? { SETSTATE(AUTH); return AUTHENTICATE; }
+any { SETSTATE(0); yylval.proto = A_ANY; return AUTHTYPE;}
+gssapi { SETSTATE(0); yylval.proto = A_GSSAPI; return AUTHTYPE;}
+kerberos(_v)?4 { SETSTATE(0); yylval.proto = A_KERBEROS_V4; return AUTHTYPE;}
+kerberos(_v)?5 { SETSTATE(0); yylval.proto = A_KERBEROS_V5; return AUTHTYPE;}
+kerberos { SETSTATE(0); yylval.proto = A_KERBEROS_V4; return AUTHTYPE;}
+ssh { SETSTATE(0); yylval.proto = A_SSH; return AUTHTYPE;}
+external { SETSTATE(0); yylval.proto = A_EXTERNAL; return AUTHTYPE;}
+(otp|opie) { SETSTATE(0); yylval.proto = A_OTP; return AUTHTYPE;}
+cram(-md5)? { SETSTATE(0); yylval.proto = A_CRAM_MD5; return AUTHTYPE;}
+msn { SETSTATE(0); yylval.proto = A_MSN; return AUTHTYPE;}
+ntlm { SETSTATE(0); yylval.proto = A_NTLM; return AUTHTYPE;}
+<AUTH>password { SETSTATE(0); yylval.proto = A_PASSWORD; return AUTHTYPE;}
timeout { return TIMEOUT;}
envelope { return ENVELOPE; }
qvirtual { return QVIRTUAL; }
+principal { return PRINCIPAL; }
+esmtpname { return ESMTPNAME; }
+esmtppassword { return ESMTPPASSWORD; }
+bad-header { return BADHEADER; }
+accept { return ACCEPT; }
+reject { return REJECT_; }
-user(name)? { return USERNAME; }
-pass(word)? { return PASSWORD; }
+user(name)? {SETSTATE(NAME); return USERNAME; }
+<INITIAL,NAME>pass(word)? {SETSTATE(NAME); return PASSWORD; }
folder(s)? { return FOLDER; }
smtp(host)? { return SMTPHOST; }
+fetchdomains { return FETCHDOMAINS; }
smtpaddress { return SMTPADDRESS; }
+smtpname { return SMTPNAME; }
antispam { return SPAMRESPONSE; }
mda { return MDA; }
+bsmtp { return BSMTP; }
+lmtp { return LMTP; }
pre(connect)? { return PRECONNECT; }
post(connect)? { return POSTCONNECT; }
-netsec { return NETSEC; }
interface { return INTERFACE; }
monitor { return MONITOR; }
+plugin { return PLUGIN; }
+plugout { return PLUGOUT; }
batchlimit { return BATCHLIMIT; }
fetchlimit { return FETCHLIMIT; }
+fetchsizelimit { return FETCHSIZELIMIT; }
+fastuidl { return FASTUIDL; }
expunge { return EXPUNGE; }
properties { return PROPERTIES; }
-is { return IS; }
+is { SETSTATE(NAME); return IS; }
here { return HERE; }
there { return THERE; }
-to { return TO; }
-= { return MAP; }
-"*" { return WILDCARD; }
+to { SETSTATE(NAME); return TO; }
+= { SETSTATE(NAME); return MAP; }
-no/[kfrsduc \t].* { return NO;}
+nobouncemail |
+nouidl |
+nocheckalias |
+nodns |
+noenvelope |
+nokeep |
+noflush |
+nolimitflush |
+nofetchall |
+norewrite |
+noforcecr |
+nostripcr |
+nopass8(bits)? |
+nodropstatus |
+nodropdelivered |
+nomimedec(ode)? |
+nospambounce |
+noidle {
+ yyless(2);
+ return NO;
+ }
+
+no {return NO;}
keep { return KEEP; }
flush { return FLUSH; }
+limitflush { return LIMITFLUSH; }
fetchall { return FETCHALL; }
rewrite { return REWRITE; }
forcecr { return FORCECR; }
stripcr { return STRIPCR; }
pass8(bits)? { return PASS8BITS; }
-dropstatus? { return DROPSTATUS; }
+dropstatus { return DROPSTATUS; }
+dropdelivered { return DROPDELIVERED; }
mimedec(ode)? { return MIMEDECODE; }
+idle { return IDLE; }
dns { return DNS; }
uidl { return UIDL; }
+ssl { return SSL; }
+sslkey { return SSLKEY; }
+sslcert { return SSLCERT; }
+sslproto { return SSLPROTO; }
+sslcertck { return SSLCERTCK; }
+sslcertfile { return SSLCERTFILE; }
+sslcertpath { return SSLCERTPATH; }
+sslcommonname { return SSLCOMMONNAME; }
+sslfingerprint { return SSLFINGERPRINT; }
checkalias { return CHECKALIAS; }
limit { return LIMIT; }
(pop2)|(POP2) { yylval.proto = P_POP2; return PROTO; }
(sdps)|(SDPS) { return SDPS; }
(pop3)|(POP3) { yylval.proto = P_POP3; return PROTO; }
-(imap-k4)|(IMAP-K4) { yylval.proto = P_IMAP_K4; return PROTO; }
-(imap-gss)|(IMAP-GSS) { yylval.proto = P_IMAP_GSS; return PROTO; }
(imap)|(IMAP) { yylval.proto = P_IMAP; return PROTO; }
(apop)|(APOP) { yylval.proto = P_APOP; return PROTO; }
+(rpop)|(RPOP) { yylval.proto = P_RPOP; return PROTO; }
(etrn)|(ETRN) { yylval.proto = P_ETRN; return PROTO; }
+(odmr)|(ODMR) { yylval.proto = P_ODMR; return PROTO; }
(kpop)|(KPOP) { return KPOP; }
-remote(folder)? {
- fprintf(stderr,
- "fetchmail: `remote' keyword is gone, use `folder'\n");
- }
-
-
(#.*)?\\?\n { prc_lineno++; } /* newline is ignored */
-[0-9]+ { yylval.number = atoi(yytext); return NUMBER; }
-
-\"[^\"]*\" {
- char buf[MSGBUFSIZE];
+-?[0-9]+ { yylval.number = atoi(yytext); return NUMBER; }
- yytext[strlen(yytext)-1] = '\0';
- escapes(yytext+1, buf);
- yylval.sval = (char *) xstrdup(buf);
- return STRING;
- }
[^=;:, \t\r\n]+ {
- char buf[MSGBUFSIZE];
-
- escapes(yytext, buf);
- yylval.sval = (char *) xstrdup(buf);
+ char *in = xstrdup(yytext);
+ escapes(in, in);
+ yylval.sval = in;
return STRING;
}
%%
-void escapes(cp, tp)
-/* process standard C-style escape sequences in a string */
-const char *cp; /* source string with escapes */
-char *tp; /* target buffer for digested string */
+/** process standard C-style escape sequences in a string,
+ * this can never lengthen the output, so cp and tp may overlap as long
+ * as cp >= tp. */
+void escapes(const char *cp /** source string with escapes */,
+ char *tp /** target buffer for digested string */)
{
while (*cp)
{
int cval = 0;
- if (*cp == '\\' && strchr("0123456789xX", cp[1]))
+ /* we MUST check for NUL explicitly, as strchr(string, 0) will
+ * always succeed! */
+ if (*cp == '\\' && cp[1] && strchr("0123456789xX", cp[1]))
{
- char *dp;
+ const char *dp;
const char *hex = "00112233445566778899aAbBcCdDeEfF";
int dcount = 0;
if (*++cp == 'x' || *cp == 'X')
- for (++cp; (dp = strchr(hex, *cp)) && (dcount++ < 2); cp++)
+ for (++cp; *cp && (dp = strchr(hex, *cp)) && (dcount++ < 2); cp++)
cval = (cval * 16) + (dp - hex) / 2;
else if (*cp == '0')
- while (strchr("01234567",*cp) != (char*)NULL && (dcount++ < 3))
+ while (*cp && strchr("01234567",*cp) != (char*)NULL && (dcount++ < 3))
cval = (cval * 8) + (*cp++ - '0');
else
- while ((strchr("0123456789",*cp)!=(char*)NULL)&&(dcount++ < 3))
+ while (*cp && (strchr("0123456789",*cp)!=(char*)NULL)&&(dcount++ < 3))
cval = (cval * 10) + (*cp++ - '0');
}
else if (*cp == '\\') /* C-style character escapes */
{
switch (*++cp)
{
+ case '\n': cp++; continue; /* backslash before LF to join lines */
+ case '\0': goto done; /* ignore backslash at file end */
case '\\': cval = '\\'; break;
case 'n': cval = '\n'; break;
case 't': cval = '\t'; break;
cval = *cp++;
*tp++ = cval;
}
+done:
*tp = '\0';
}
-
projects / ~andy / fetchmail / blobdiff