X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/193489472a436a4437498b448e11e8992baaaf67..b4f2851d4:/uip/picksbr.c diff --git a/uip/picksbr.c b/uip/picksbr.c index 3d4e9782..60354703 100644 --- a/uip/picksbr.c +++ b/uip/picksbr.c @@ -2,57 +2,45 @@ /* * picksbr.c -- routines to help pick along... * - * $Id$ + * This code is Copyright (c) 2002, by the authors of nmh. See the + * COPYRIGHT file in the root directory of the nmh distribution for + * complete copyright information. */ #include -#include +#include #include +#include -#ifdef TIME_WITH_SYS_TIME +#ifdef HAVE_SYS_TIME_H # include -# include -#else -# ifdef TM_IN_SYS_TIME -# include -# else -# include -# endif #endif - -static struct swit parswit[] = { -#define PRAND 0 - { "and", 0 }, -#define PROR 1 - { "or", 0 }, -#define PRNOT 2 - { "not", 0 }, -#define PRLBR 3 - { "lbrace", 0 }, -#define PRRBR 4 - { "rbrace", 0 }, -#define PRCC 5 - { "cc pattern", 0 }, -#define PRDATE 6 - { "date pattern", 0 }, -#define PRFROM 7 - { "from pattern", 0 }, -#define PRSRCH 8 - { "search pattern", 0 }, -#define PRSUBJ 9 - { "subject pattern", 0 }, -#define PRTO 10 - { "to pattern", 0 }, -#define PROTHR 11 - { "-othercomponent pattern", 15 }, -#define PRAFTR 12 - { "after date", 0 }, -#define PRBEFR 13 - { "before date", 0 }, -#define PRDATF 14 - { "datefield field", 5 }, - { NULL, 0 } -}; +#include + +#define PARSE_SWITCHES \ + X("and", 0, PRAND) \ + X("or", 0, PROR) \ + X("not", 0, PRNOT) \ + X("lbrace", 0, PRLBR) \ + X("rbrace", 0, PRRBR) \ + X("cc pattern", 0, PRCC) \ + X("date pattern", 0, PRDATE) \ + X("from pattern", 0, PRFROM) \ + X("search pattern", 0, PRSRCH) \ + X("subject pattern", 0, PRSUBJ) \ + X("to pattern", 0, PRTO) \ + X("-othercomponent pattern", 15, PROTHR) \ + X("after date", 0, PRAFTR) \ + X("before date", 0, PRBEFR) \ + X("datefield field", 5, PRDATF) \ + +#define X(sw, minchars, id) id, +DEFINE_SWITCH_ENUM(PARSE); +#undef X + +#define X(sw, minchars, id) { sw, minchars, id }, +DEFINE_SWITCH_ARRAY(PARSE, parswit); +#undef X /* DEFINITIONS FOR PATTERN MATCHING */ @@ -77,13 +65,14 @@ static struct swit parswit[] = { #define STAR 01 #define LBSIZE 1024 -#define ESIZE 256 +#define ESIZE 1024 static char linebuf[LBSIZE + 1]; +static char decoded_linebuf[LBSIZE + 1]; /* the magic array for case-independence */ -static char cc[] = { +static unsigned char cc[] = { 0000,0001,0002,0003,0004,0005,0006,0007, 0010,0011,0012,0013,0014,0015,0016,0017, 0020,0021,0022,0023,0024,0025,0026,0027, @@ -100,6 +89,23 @@ static char cc[] = { 0150,0151,0152,0153,0154,0155,0156,0157, 0160,0161,0162,0163,0164,0165,0166,0167, 0170,0171,0172,0173,0174,0175,0176,0177, + + 0200,0201,0202,0203,0204,0205,0206,0207, + 0210,0211,0212,0213,0214,0215,0216,0217, + 0220,0221,0222,0223,0224,0225,0226,0227, + 0230,0231,0232,0233,0234,0235,0236,0237, + 0240,0241,0242,0243,0244,0245,0246,0247, + 0250,0251,0252,0253,0254,0255,0256,0257, + 0260,0261,0262,0263,0264,0265,0266,0267, + 0270,0271,0272,0273,0274,0275,0276,0277, + 0300,0301,0302,0303,0304,0305,0306,0307, + 0310,0311,0312,0313,0314,0315,0316,0317, + 0320,0321,0322,0323,0324,0325,0326,0327, + 0330,0331,0332,0333,0334,0335,0336,0337, + 0340,0341,0342,0343,0344,0345,0346,0347, + 0350,0351,0352,0353,0354,0355,0356,0357, + 0360,0361,0362,0363,0364,0365,0366,0367, + 0370,0371,0372,0373,0374,0375,0376,0377, }; /* @@ -161,23 +167,23 @@ static struct nexus *head; /* * prototypes for date routines */ -static struct tws *tws_parse(); -static struct tws *tws_special(); +static struct tws *tws_parse(char *, int); +static struct tws *tws_special(char *); /* * static prototypes */ -static void PRaction(); -static int gcompile(); -static int advance(); -static int cclass(); -static int tcompile(); - -static struct nexus *parse(); -static struct nexus *exp1(); -static struct nexus *exp2(); -static struct nexus *exp3(); -static struct nexus *newnexus(); +static void PRaction(struct nexus *, int); +static int gcompile(struct nexus *, char *); +static int advance(char *, char *); +static int cclass(unsigned char *, int, int); +static int tcompile(char *, struct tws *, int); + +static struct nexus *parse(void); +static struct nexus *nexp1(void); +static struct nexus *nexp2(void); +static struct nexus *nexp3(void); +static struct nexus *newnexus(int (*)()); static int ORaction(); static int ANDaction(); @@ -217,7 +223,7 @@ parse (void) register char *cp; register struct nexus *n, *o; - if ((n = exp1 ()) == NULL || (cp = nxtarg ()) == NULL) + if ((n = nexp1 ()) == NULL || (cp = nxtarg ()) == NULL) return n; if (*cp != '-') { @@ -253,12 +259,12 @@ header: ; } static struct nexus * -exp1 (void) +nexp1 (void) { register char *cp; register struct nexus *n, *o; - if ((n = exp2 ()) == NULL || (cp = nxtarg ()) == NULL) + if ((n = nexp2 ()) == NULL || (cp = nxtarg ()) == NULL) return n; if (*cp != '-') { @@ -281,7 +287,7 @@ exp1 (void) case PRAND: o = newnexus (ANDaction); o->n_L_child = n; - if ((o->n_R_child = exp1 ())) + if ((o->n_R_child = nexp1 ())) return o; padvise (NULL, "missing conjunctive"); return NULL; @@ -295,7 +301,7 @@ header: ; static struct nexus * -exp2 (void) +nexp2 (void) { register char *cp; register struct nexus *n; @@ -305,7 +311,7 @@ exp2 (void) if (*cp != '-') { prvarg (); - return exp3 (); + return nexp3 (); } if (*++cp == '-') @@ -322,7 +328,7 @@ exp2 (void) case PRNOT: n = newnexus (NOTaction); - if ((n->n_L_child = exp3 ())) + if ((n->n_L_child = nexp3 ())) return n; padvise (NULL, "missing negation"); return NULL; @@ -330,12 +336,12 @@ exp2 (void) header: ; default: prvarg (); - return exp3 (); + return nexp3 (); } } static struct nexus * -exp3 (void) +nexp3 (void) { int i; register char *cp, *dp; @@ -426,7 +432,7 @@ exp3 (void) padvise (NULL, "missing argument to %s", argp[-2]); return NULL; } - return exp3 (); + return nexp3 (); case PRAFTR: case PRBEFR: @@ -516,7 +522,8 @@ PRaction (struct nexus *n, int level) dasctime (&n->n_tws, TW_NULL)); return; } - fprintf (stderr, "UNKNOWN(0x%x)\n", (unsigned int) (*n->n_action)); + fprintf (stderr, "UNKNOWN(0x%x)\n", + (unsigned int)(unsigned long) (*n->n_action)); } @@ -553,10 +560,10 @@ gcompile (struct nexus *n, char *astr) { register int c; int cclcnt; - register char *ep, *dp, *sp, *lastep; + register unsigned char *ep, *dp, *sp, *lastep = 0; - dp = (ep = n->n_expbuf) + sizeof n->n_expbuf; - sp = astr; + dp = (ep = (unsigned char *) n->n_expbuf) + sizeof n->n_expbuf; + sp = (unsigned char *) astr; if (*sp == '^') { n->n_circf = 1; sp++; @@ -592,17 +599,33 @@ gcompile (struct nexus *n, char *astr) case '[': *ep++ = CCL; *ep++ = 0; - cclcnt = 1; + cclcnt = 0; if ((c = *sp++) == '^') { c = *sp++; ep[-2] = NCCL; } - do { + if (c == '-') { *ep++ = c; cclcnt++; - if (c == '\0' || ep >= dp) - goto cerror; + c = *sp++; + } + do { + if (c == '-' && *sp != '\0' && *sp != ']') { + for (c = ep[-1]+1; c < *sp; c++) { + *ep++ = c; + cclcnt++; + if (c == '\0' || ep >= dp) + goto cerror; + } + } else { + *ep++ = c; + cclcnt++; + if (c == '\0' || ep >= dp) + goto cerror; + } } while ((c = *sp++) != ']'); + if (cclcnt > 255) + goto cerror; lastep[1] = cclcnt; continue; @@ -629,6 +652,7 @@ plist long pos = start; register char *p1, *p2, *ebp, *cbp; char ibuf[BUFSIZ]; + NMH_UNUSED (msgnum); fseek (fp, start, SEEK_SET); body = 0; @@ -669,7 +693,8 @@ plist break; } lf++; - c = ' '; + /* Unfold by skipping the newline. */ + c = 0; } } if (c && p1 < &linebuf[LBSIZE - 1]) @@ -681,6 +706,13 @@ plist p1 = linebuf; p2 = n->n_expbuf; + /* Attempt to decode as a MIME header. If it's the last header, + body will be 1 and lf will be at least 1. */ + if ((body == 0 || lf > 0) && + decode_rfc2047 (linebuf, decoded_linebuf, sizeof decoded_linebuf)) { + p1 = decoded_linebuf; + } + if (n->n_circf) { if (advance (p1, p2)) return 1; @@ -690,7 +722,7 @@ plist if (*p2 == CCHR) { c = p2[1]; do { - if (*p1 == c || cc[(int)*p1] == c) + if (*p1 == c || cc[(unsigned char)*p1] == c) if (advance (p1, p2)) return 1; } while (*p1++); @@ -708,14 +740,14 @@ plist static int advance (char *alp, char *aep) { - register char *lp, *ep, *curlp; + register unsigned char *lp, *ep, *curlp; - lp = alp; - ep = aep; + lp = (unsigned char *)alp; + ep = (unsigned char *)aep; for (;;) switch (*ep++) { case CCHR: - if (*ep++ == *lp++ || ep[-1] == cc[(int)lp[-1]]) + if (*ep++ == *lp++ || ep[-1] == cc[lp[-1]]) continue; return 0; @@ -734,14 +766,14 @@ advance (char *alp, char *aep) case CCL: if (cclass (ep, *lp++, 1)) { - ep += *ep; + ep += *ep + 1; continue; } return 0; case NCCL: if (cclass (ep, *lp++, 0)) { - ep += *ep; + ep += *ep + 1; continue; } return 0; @@ -754,7 +786,7 @@ advance (char *alp, char *aep) case CCHR | STAR: curlp = lp; - while (*lp++ == *ep || cc[(int)lp[-1]] == *ep) + while (*lp++ == *ep || cc[lp[-1]] == *ep) continue; ep++; goto star; @@ -764,13 +796,13 @@ advance (char *alp, char *aep) curlp = lp; while (cclass (ep, *lp++, ep[-1] == (CCL | STAR))) continue; - ep += *ep; + ep += *ep + 1; goto star; star: do { lp--; - if (advance (lp, ep)) + if (advance ((char *) lp, (char *) ep)) return (1); } while (lp > curlp); return 0; @@ -783,19 +815,18 @@ advance (char *alp, char *aep) static int -cclass (char *aset, int ac, int af) +cclass (unsigned char *aset, int ac, int af) { - register int n; - register char c, - *set; + register unsigned int n; + register unsigned char c, *set; set = aset; if ((c = ac) == 0) return (0); n = *set++; - while (--n) - if (*set++ == c) + while (n--) + if (*set++ == c || set[-1] == cc[c]) return (af); return (!af); @@ -903,27 +934,28 @@ plist register char *bp; char buf[BUFSIZ], name[NAMESZ]; register struct tws *tw; + m_getfld_state_t gstate = 0; + NMH_UNUSED (stop); fseek (fp, start, SEEK_SET); - for (state = FLD, bp = NULL;;) { - switch (state = m_getfld (state, name, buf, sizeof buf, fp)) { + for (bp = NULL;;) { + int bufsz = sizeof buf; + switch (state = m_getfld (&gstate, name, buf, &bufsz, fp)) { case FLD: - case FLDEOF: case FLDPLUS: if (bp != NULL) free (bp), bp = NULL; bp = add (buf, NULL); while (state == FLDPLUS) { - state = m_getfld (state, name, buf, sizeof buf, fp); + bufsz = sizeof buf; + state = m_getfld (&gstate, name, buf, &bufsz, fp); bp = add (buf, bp); } if (!strcasecmp (name, n->n_datef)) break; - if (state != FLDEOF) - continue; + continue; case BODY: - case BODYEOF: case FILEEOF: case LENERR: case FMTERR: @@ -938,6 +970,7 @@ plist } break; } + m_getfld_state_destroy (&gstate); if ((tw = dparsetime (bp)) == NULL) advise (NULL, "unable to parse %s field in message %d, matching...",