*/
#include <h/mh.h>
-#include <h/mts.h>
#include <h/utils.h>
+#include <ctype.h>
+#include <sysexits.h>
/*
-** This module has a long and checkered history. First, it didn't burst
-** maildrops correctly because it considered two CTRL-A:s in a row to be
-** an inter-message delimiter. It really is four CTRL-A:s followed by a
-** newline. Unfortunately, MMDF will convert this delimiter *inside* a
-** message to a CTRL-B followed by three CTRL-A:s and a newline. This
-** caused the old version of m_getfld() to declare eom prematurely. The
-** fix was a lot slower than
+** This module has a long and checkered history.
**
-** c == '\001' && peekc (iob) == '\001'
+** [ Here had been some history of delimiter problems in MMDF maildrops ... ]
**
-** but it worked, and to increase generality, MBOX style maildrops could
-** be parsed as well. Unfortunately the speed issue finally caught up with
-** us since this routine is at the very heart of MH.
+** Unfortunately the speed issue finally caught up with us since this
+** routine is at the very heart of MH. To speed things up considerably, the
+** routine Eom() was made an auxilary function called by the macro eom().
+** Unless we are bursting a maildrop, the eom() macro returns FALSE saying
+** we aren't at the end of the message.
**
-** To speed things up considerably, the routine Eom() was made an auxilary
-** function called by the macro eom(). Unless we are bursting a maildrop,
-** the eom() macro returns FALSE saying we aren't at the end of the
-** message.
+** [ ... and here had been some more of it. ]
**
-** The next thing to do is to read the mts.conf file and initialize
-** delimiter[] and delimlen accordingly...
-**
-** After mhl was made a built-in in msh, m_getfld() worked just fine
-** (using m_unknown() at startup). Until one day: a message which was
-** the result of a bursting was shown. Then, since the burst boundaries
-** aren't CTRL-A:s, m_getfld() would blinding plunge on past the boundary.
-** Very sad. The solution: introduce m_eomsbr(). This hook gets called
-** after the end of each line (since testing for eom involves an fseek()).
-** This worked fine, until one day: a message with no body portion arrived.
-** Then the
-**
-** while (eom(c = Getc(iob), iob))
-** continue;
-**
-** loop caused m_getfld() to return FMTERR. So, that logic was changed to
-** check for (*eom_action) and act accordingly.
-**
-** [ Note by meillo 2011-10:
-** as msh was removed from mmh, m_eomsbr() became irrelevant. ]
-**
-** This worked fine, until one day: someone didn't use four CTRL:A's as
-** their delimiters. So, the bullet got bit and we read mts.h and
-** continue to struggle on. It's not that bad though, since the only time
-** the code gets executed is when inc (or msh) calls it, and both of these
-** have already called mts_init().
**
** ------------------------
** (Written by Van Jacobson for the mh6 m_getfld, January, 1986):
** If you hack on this and slow it down, I, my children and my
** children's children will curse you.
**
-** This routine gets used on three different types of files: normal,
-** single msg files, "packed" unix or mmdf mailboxs (when used by inc)
-** and packed, directoried bulletin board files (when used by msh).
+** This routine gets used on two different types of files: normal,
+** single msg files and "packed" unix mailboxs (when used by inc).
** The biggest impact of different file types is in "eom" testing. The
** code has been carefully organized to test for eom at appropriate
** times and at no other times (since the check is quite expensive).
static unsigned char *matchc(int, char *, int, char *);
static unsigned char *locc(int, unsigned char *, unsigned char);
-#define Getc(iob) getc(iob)
-#define eom(c,iob) (msg_style != MS_DEFAULT && \
+#define eom(c,iob) (ismbox && \
(((c) == *msg_delim && m_Eom(c,iob)) ||\
(eom_action && (*eom_action)(c))))
static unsigned char **pat_map;
/*
-** defined in sbr/m_msgdef.c = 0
** This is a disgusting hack for "inc" so it can know how many
** characters were stuffed in the buffer on the last call
** (see comments in uip/scansbr.c).
*/
-extern int msg_count;
+int msg_count = 0;
-/*
-** defined in sbr/m_msgdef.c = MS_DEFAULT
-*/
-extern int msg_style;
+int ismbox = FALSE;
/*
** The "full" delimiter string for a packed maildrop consists
** is used in m_Eom because the first character of the string
** has been read and matched before m_Eom is called.
*/
-extern char *msg_delim; /* defined in sbr/m_msgdef.c = "" */
+static char *msg_delim = "";
+
static unsigned char *fdelim;
static unsigned char *delimend;
static int fdelimlen;
# define DEFINED__FILBUF_TO_SOMETHING_SPECIFIC
#endif
-#ifdef SCO_5_STDIO
-# define _ptr __ptr
-# define _cnt __cnt
-# define _base __base
-# define _filbuf(fp) ((fp)->__cnt = 0, __filbuf(fp))
-# define DEFINED__FILBUF_TO_SOMETHING_SPECIFIC
-#endif
-
#ifndef DEFINED__FILBUF_TO_SOMETHING_SPECIFIC
extern int _filbuf(FILE*);
#endif
m_getfld(int state, unsigned char *name, unsigned char *buf,
int bufsz, FILE *iob)
{
- register unsigned char *bp, *cp, *ep, *sp;
- register int cnt, c, i, j;
+ unsigned char *bp, *cp, *ep, *sp;
+ int cnt, c, i, j;
- if ((c = Getc(iob)) < 0) {
+ if ((c = getc(iob)) < 0) {
msg_count = 0;
*buf = 0;
return FILEEOF;
if (eom(c, iob)) {
if (! eom_action) {
/* flush null messages */
- while ((c = Getc(iob)) >= 0 && eom(c, iob))
+ while ((c = getc(iob)) >= 0 && eom(c, iob))
;
if (c >= 0)
ungetc(c, iob);
}
switch (state) {
- case FLDEOF:
- case BODYEOF:
- case FLD:
- if (c == '\n' || c == '-') {
- /* we hit the header/body separator */
- while (c != '\n' && (c = Getc(iob)) >= 0)
- ;
-
- if (c < 0 || (c = Getc(iob)) < 0 || eom(c, iob)) {
- if (! eom_action) {
- /* flush null messages */
- while ((c = Getc(iob)) >= 0 && eom(c, iob))
- ;
- if (c >= 0)
- ungetc(c, iob);
- }
- msg_count = 0;
- *buf = 0;
- return FILEEOF;
+ case FLD:
+ if (c == '\n' || c == '-') {
+ /* we hit the header/body separator */
+ while (c != '\n' && (c = getc(iob)) >= 0)
+ ;
+
+ if (c < 0 || (c = getc(iob)) < 0 || eom(c, iob)) {
+ if (!eom_action) {
+ /* flush null messages */
+ while ((c = getc(iob)) >= 0 && eom(c, iob))
+ ;
+ if (c >= 0)
+ ungetc(c, iob);
}
- state = BODY;
- goto body;
+ msg_count = 0;
+ *buf = 0;
+ return FILEEOF;
}
- /*
- ** get the name of this component. take characters up
- ** to a ':', a newline or NAMESZ-1 characters,
- ** whichever comes first.
- */
- cp = name;
- i = NAMESZ - 1;
- for (;;) {
+ state = BODY;
+ goto body;
+ }
+ /*
+ ** get the name of this component. take characters up
+ ** to a ':', a newline or NAMESZ-1 characters,
+ ** whichever comes first.
+ */
+ cp = name;
+ i = NAMESZ - 1;
+ for (;;) {
#ifdef LINUX_STDIO
- bp = sp = (unsigned char *) iob->_IO_read_ptr - 1;
- j = (cnt = ((long) iob->_IO_read_end -
- (long) iob->_IO_read_ptr) + 1) < i ? cnt : i;
+ bp = sp = (unsigned char *) iob->_IO_read_ptr - 1;
+ j = (cnt = ((long) iob->_IO_read_end -
+ (long) iob->_IO_read_ptr) + 1) < i ? cnt : i;
#elif defined(__DragonFly__)
- bp = sp = (unsigned char *) ((struct __FILE_public *)iob)->_p - 1;
- j = (cnt = ((struct __FILE_public *)iob)->_r+1) < i ? cnt : i;
+ bp = sp = (unsigned char *) ((struct __FILE_public *)iob)->_p - 1;
+ j = (cnt = ((struct __FILE_public *)iob)->_r+1) < i ? cnt : i;
#else
- bp = sp = (unsigned char *) iob->_ptr - 1;
- j = (cnt = iob->_cnt+1) < i ? cnt : i;
+ bp = sp = (unsigned char *) iob->_ptr - 1;
+ j = (cnt = iob->_cnt+1) < i ? cnt : i;
#endif
- while (--j >= 0 && (c = *bp++) != ':' && c != '\n')
- *cp++ = c;
+ while (--j >= 0 && (c = *bp++) != ':' && c != '\n')
+ *cp++ = c;
- j = bp - sp;
- if ((cnt -= j) <= 0) {
+ j = bp - sp;
+ if ((cnt -= j) <= 0) {
#ifdef LINUX_STDIO
- iob->_IO_read_ptr = iob->_IO_read_end;
- if (__underflow(iob) == EOF) {
+ iob->_IO_read_ptr = iob->_IO_read_end;
+ if (__underflow(iob) == EOF) {
#elif defined(__DragonFly__)
- if (__srget(iob) == EOF) {
+ if (__srget(iob) == EOF) {
#else
- if (_filbuf(iob) == EOF) {
+ if (_filbuf(iob) == EOF) {
#endif
- *cp = *buf = 0;
- advise(NULL, "eof encountered in field \"%s\"", name);
- return FMTERR;
- }
+ *cp = *buf = 0;
+ advise(NULL, "eof encountered in field \"%s\"", name);
+ return FMTERR;
+ }
#ifdef LINUX_STDIO
- iob->_IO_read_ptr++; /* NOT automatic in __underflow()! */
+ iob->_IO_read_ptr++; /* NOT automatic in __underflow()! */
#endif
- } else {
+ } else {
#ifdef LINUX_STDIO
- iob->_IO_read_ptr = bp + 1;
+ iob->_IO_read_ptr = bp + 1;
#elif defined(__DragonFly__)
- ((struct __FILE_public *)iob)->_p = bp + 1;
- ((struct __FILE_public *)iob)->_r = cnt - 1;
+ ((struct __FILE_public *)iob)->_p = bp + 1;
+ ((struct __FILE_public *)iob)->_r = cnt - 1;
#else
- iob->_ptr = bp + 1;
- iob->_cnt = cnt - 1;
+ iob->_ptr = bp + 1;
+ iob->_cnt = cnt - 1;
#endif
- }
- if (c == ':')
- break;
+ }
+ if (c == ':')
+ break;
+ /*
+ ** something went wrong. possibilities are:
+ ** . hit a newline (error)
+ ** . got more than namesz chars. (error)
+ ** . hit the end of the buffer. (loop)
+ */
+ if (c == '\n') {
/*
- ** something went wrong. possibilities are:
- ** . hit a newline (error)
- ** . got more than namesz chars. (error)
- ** . hit the end of the buffer. (loop)
+ ** We hit the end of the line without
+ ** seeing ':' to terminate the field name.
+ ** This is usually (always?) spam. But,
+ ** blowing up is lame, especially when
+ ** scan(1)ing a folder with such messages.
+ ** Pretend such lines are the first of
+ ** the body (at least mutt also handles
+ ** it this way).
*/
- if (c == '\n') {
- /*
- ** We hit the end of the line
- ** without seeing ':' to terminate
- ** the field name. This is usually
- ** (always?) spam. But, blowing
- ** up is lame, especially when
- ** scan(1)ing a folder with such
- ** messages. Pretend such lines are
- ** the first of the body (at least
- ** mutt also handles it this way).
- */
+ /*
+ ** See if buf can hold this line, since we
+ ** were assuming we had a buffer of NAMESZ,
+ ** not bufsz.
+ */
+ /* + 1 for the newline */
+ if (bufsz < j + 1) {
/*
- ** See if buf can hold this line,
- ** since we were assuming we had
- ** a buffer of NAMESZ, not bufsz.
- */
- /* + 1 for the newline */
- if (bufsz < j + 1) {
- /*
- ** No, it can't. Oh well,
- ** guess we'll blow up.
- */
- *cp = *buf = 0;
- advise(NULL, "eol encountered in field \"%s\"", name);
- state = FMTERR;
- goto finish;
- }
- memcpy(buf, name, j - 1);
- buf[j - 1] = '\n';
- buf[j] = '\0';
- /*
- ** mhparse.c:get_content wants to
- ** find the position of the body
- ** start, but it thinks there's a
- ** blank line between the header
- ** and the body (naturally!), so
- ** seek back so that things line
- ** up even though we don't have
- ** that blank line in this case.
- ** Simpler parsers (e.g. mhl)
- ** get extra newlines, but that
- ** should be harmless enough, right?
- ** This is a corrupt message anyway.
+ ** No, it can't. Oh well,
+ ** guess we'll blow up.
*/
- fseek(iob, ftell(iob) - 2, SEEK_SET);
- return BODY;
- }
- if ((i -= j) <= 0) {
*cp = *buf = 0;
- advise(NULL, "field name \"%s\" exceeds %d bytes", name, NAMESZ - 2);
- state = LENERR;
+ advise(NULL, "eol encountered in field \"%s\"", name);
+ state = FMTERR;
goto finish;
}
+ memcpy(buf, name, j - 1);
+ buf[j - 1] = '\n';
+ buf[j] = '\0';
+ /*
+ ** mhparse.c:get_content wants to find
+ ** the position of the body start, but
+ ** it thinks there's a blank line between
+ ** the header and the body (naturally!),
+ ** so seek back so that things line up
+ ** even though we don't have that blank
+ ** line in this case. Simpler parsers
+ ** (e.g. mhl) get extra newlines, but
+ ** that should be harmless enough, right?
+ ** This is a corrupt message anyway.
+ */
+ fseek(iob, ftell(iob) - 2, SEEK_SET);
+ return BODY;
}
+ if ((i -= j) <= 0) {
+ *cp = *buf = 0;
+ advise(NULL, "field name \"%s\" exceeds %d bytes", name, NAMESZ - 2);
+ state = LENERR;
+ goto finish;
+ }
+ }
- while (isspace(*--cp) && cp >= name)
- ;
- *++cp = 0;
- /* fall through */
-
- case FLDPLUS:
- /*
- ** get (more of) the text of a field. take
- ** characters up to the end of this field (newline
- ** followed by non-blank) or bufsz-1 characters.
- */
- cp = buf; i = bufsz-1;
- for (;;) {
+ while (isspace(*--cp) && cp >= name)
+ ;
+ *++cp = 0;
+ /* fall through */
+
+ case FLDPLUS:
+ /*
+ ** get (more of) the text of a field. take
+ ** characters up to the end of this field (newline
+ ** followed by non-blank) or bufsz-1 characters.
+ */
+ cp = buf; i = bufsz-1;
+ for (;;) {
#ifdef LINUX_STDIO
- cnt = (long) iob->_IO_read_end - (long) iob->_IO_read_ptr;
- bp = (unsigned char *) --iob->_IO_read_ptr;
+ cnt = (long) iob->_IO_read_end - (long) iob->_IO_read_ptr;
+ bp = (unsigned char *) --iob->_IO_read_ptr;
#elif defined(__DragonFly__)
- cnt = ((struct __FILE_public *)iob)->_r++;
- bp = (unsigned char *) --((struct __FILE_public *)iob)->_p;
+ cnt = ((struct __FILE_public *)iob)->_r++;
+ bp = (unsigned char *) --((struct __FILE_public *)iob)->_p;
#else
- cnt = iob->_cnt++;
- bp = (unsigned char *) --iob->_ptr;
+ cnt = iob->_cnt++;
+ bp = (unsigned char *) --iob->_ptr;
#endif
- c = cnt < i ? cnt : i;
- while ((ep = locc( c, bp, '\n' ))) {
- /*
- ** if we hit the end of this field,
- ** return.
- */
- if ((j = *++ep) != ' ' && j != '\t') {
+ c = cnt < i ? cnt : i;
+ while ((ep = locc( c, bp, '\n' ))) {
+ /*
+ ** if we hit the end of this field,
+ ** return.
+ */
+ if ((j = *++ep) != ' ' && j != '\t') {
#ifdef LINUX_STDIO
- j = ep - (unsigned char *) iob->_IO_read_ptr;
- memcpy(cp, iob->_IO_read_ptr, j);
- iob->_IO_read_ptr = ep;
+ j = ep - (unsigned char *) iob->_IO_read_ptr;
+ memcpy(cp, iob->_IO_read_ptr, j);
+ iob->_IO_read_ptr = ep;
#elif defined(__DragonFly__)
- j = ep - (unsigned char *) ((struct __FILE_public *)iob)->_p;
- memcpy(cp, ((struct __FILE_public *)iob)->_p, j);
- ((struct __FILE_public *)iob)->_p = ep;
- ((struct __FILE_public *)iob)->_r -= j;
+ j = ep - (unsigned char *) ((struct __FILE_public *)iob)->_p;
+ memcpy(cp, ((struct __FILE_public *)iob)->_p, j);
+ ((struct __FILE_public *)iob)->_p = ep;
+ ((struct __FILE_public *)iob)->_r -= j;
#else
- j = ep - (unsigned char *) iob->_ptr;
- memcpy(cp, iob->_ptr, j);
- iob->_ptr = ep;
- iob->_cnt -= j;
+ j = ep - (unsigned char *) iob->_ptr;
+ memcpy(cp, iob->_ptr, j);
+ iob->_ptr = ep;
+ iob->_cnt -= j;
#endif
- cp += j;
- state = FLD;
- goto finish;
- }
- c -= ep - bp;
- bp = ep;
+ cp += j;
+ state = FLD;
+ goto finish;
}
- /*
- ** end of input or dest buffer - copy what
- ** we've found.
- */
+ c -= ep - bp;
+ bp = ep;
+ }
+ /*
+ ** end of input or dest buffer - copy what
+ ** we've found.
+ */
#ifdef LINUX_STDIO
- c += bp - (unsigned char *) iob->_IO_read_ptr;
- memcpy(cp, iob->_IO_read_ptr, c);
+ c += bp - (unsigned char *) iob->_IO_read_ptr;
+ memcpy(cp, iob->_IO_read_ptr, c);
#elif defined(__DragonFly__)
- c += bp - (unsigned char *) ((struct __FILE_public *)iob)->_p;
- memcpy(cp, ((struct __FILE_public *)iob)->_p, c);
+ c += bp - (unsigned char *) ((struct __FILE_public *)iob)->_p;
+ memcpy(cp, ((struct __FILE_public *)iob)->_p, c);
#else
- c += bp - (unsigned char *) iob->_ptr;
- memcpy(cp, iob->_ptr, c);
+ c += bp - (unsigned char *) iob->_ptr;
+ memcpy(cp, iob->_ptr, c);
#endif
- i -= c;
- cp += c;
- if (i <= 0) {
- /* the dest buffer is full */
+ i -= c;
+ cp += c;
+ if (i <= 0) {
+ /* the dest buffer is full */
#ifdef LINUX_STDIO
- iob->_IO_read_ptr += c;
+ iob->_IO_read_ptr += c;
#elif defined(__DragonFly__)
- ((struct __FILE_public *)iob)->_r -= c;
- ((struct __FILE_public *)iob)->_p += c;
+ ((struct __FILE_public *)iob)->_r -= c;
+ ((struct __FILE_public *)iob)->_p += c;
#else
- iob->_cnt -= c;
- iob->_ptr += c;
+ iob->_cnt -= c;
+ iob->_ptr += c;
#endif
- state = FLDPLUS;
- break;
- }
- /*
- ** There's one character left in the input
- ** buffer. Copy it & fill the buffer.
- ** If the last char was a newline and the
- ** next char is not whitespace, this is
- ** the end of the field. Otherwise loop.
- */
- --i;
+ state = FLDPLUS;
+ break;
+ }
+ /*
+ ** There's one character left in the input
+ ** buffer. Copy it & fill the buffer.
+ ** If the last char was a newline and the
+ ** next char is not whitespace, this is
+ ** the end of the field. Otherwise loop.
+ */
+ --i;
#ifdef LINUX_STDIO
- *cp++ = j = *(iob->_IO_read_ptr + c);
- iob->_IO_read_ptr = iob->_IO_read_end;
- c = __underflow(iob);
- iob->_IO_read_ptr++; /* NOT automatic! */
+ *cp++ = j = *(iob->_IO_read_ptr + c);
+ iob->_IO_read_ptr = iob->_IO_read_end;
+ c = __underflow(iob);
+ iob->_IO_read_ptr++; /* NOT automatic! */
#elif defined(__DragonFly__)
- *cp++ =j = *(((struct __FILE_public *)iob)->_p + c);
- c = __srget(iob);
+ *cp++ =j = *(((struct __FILE_public *)iob)->_p + c);
+ c = __srget(iob);
#else
- *cp++ = j = *(iob->_ptr + c);
- c = _filbuf(iob);
+ *cp++ = j = *(iob->_ptr + c);
+ c = _filbuf(iob);
#endif
- if (c == EOF ||
- ((j == '\0' || j == '\n') && c != ' ' && c != '\t')) {
- if (c != EOF) {
+ if (c == EOF || ((j == '\0' || j == '\n')
+ && c != ' ' && c != '\t')) {
+ if (c != EOF) {
#ifdef LINUX_STDIO
- --iob->_IO_read_ptr;
+ --iob->_IO_read_ptr;
#elif defined(__DragonFly__)
- --((struct __FILE_public *)iob)->_p;
- ++((struct __FILE_public *)iob)->_r;
+ --((struct __FILE_public *)iob)->_p;
+ ++((struct __FILE_public *)iob)->_r;
#else
- --iob->_ptr;
- ++iob->_cnt;
+ --iob->_ptr;
+ ++iob->_cnt;
#endif
- }
- state = FLD;
- break;
}
+ state = FLD;
+ break;
}
- break;
-
- case BODY:
- body:
- /*
- ** get the message body up to bufsz characters or
- ** the end of the message. Sleazy hack: if bufsz
- ** is negative we assume that we were called to
- ** copy directly into the output buffer and we
- ** don't add an eos.
- */
- i = (bufsz < 0) ? -bufsz : bufsz-1;
+ }
+ break;
+
+ case BODY:
+ body:
+ /*
+ ** get the message body up to bufsz characters or
+ ** the end of the message. Sleazy hack: if bufsz
+ ** is negative we assume that we were called to
+ ** copy directly into the output buffer and we
+ ** don't add an eos.
+ */
+ i = (bufsz < 0) ? -bufsz : bufsz-1;
#ifdef LINUX_STDIO
- bp = (unsigned char *) --iob->_IO_read_ptr;
- cnt = (long) iob->_IO_read_end - (long) iob->_IO_read_ptr;
+ bp = (unsigned char *) --iob->_IO_read_ptr;
+ cnt = (long) iob->_IO_read_end - (long) iob->_IO_read_ptr;
#elif defined(__DragonFly__)
- bp = (unsigned char *) --((struct __FILE_public *)iob)->_p;
- cnt = ++((struct __FILE_public *)iob)->_r;
+ bp = (unsigned char *) --((struct __FILE_public *)iob)->_p;
+ cnt = ++((struct __FILE_public *)iob)->_r;
#else
- bp = (unsigned char *) --iob->_ptr;
- cnt = ++iob->_cnt;
+ bp = (unsigned char *) --iob->_ptr;
+ cnt = ++iob->_cnt;
#endif
- c = (cnt < i ? cnt : i);
- if (msg_style != MS_DEFAULT && c > 1) {
+ c = (cnt < i ? cnt : i);
+ if (ismbox && c > 1) {
+ /*
+ ** packed maildrop - only take up to the (possible)
+ ** start of the next message. This "matchc" should
+ ** probably be a Boyer-Moore matcher for non-vaxen,
+ ** particularly since we have the alignment table
+ ** all built for the end-of-buffer test (next).
+ ** But our vax timings indicate that the "matchc"
+ ** instruction is 50% faster than a carefully coded
+ ** B.M. matcher for most strings. (So much for
+ ** elegant algorithms vs. brute force.) Since I
+ ** (currently) run MH on a vax, we use the matchc
+ ** instruction. --vj
+ */
+ if ((ep = matchc( fdelimlen, fdelim, c, bp )))
+ c = ep - bp + 1;
+ else {
/*
- ** packed maildrop - only take up to the
- ** (possible) start of the next message.
- ** This "matchc" should probably be a
- ** Boyer-Moore matcher for non-vaxen,
- ** particularly since we have the alignment
- ** table all built for the end-of-buffer
- ** test (next). But our vax timings
- ** indicate that the "matchc" instruction
- ** is 50% faster than a carefully coded
- ** B.M. matcher for most strings. (So much
- ** for elegant algorithms vs. brute force.)
- ** Since I (currently) run MH on a vax,
- ** we use the matchc instruction. --vj
+ ** There's no delim in the buffer but
+ ** there may be a partial one at the end.
+ ** If so, we want to leave it so the "eom"
+ ** check on the next call picks it up. Use a
+ ** modified Boyer-Moore matcher to make this
+ ** check relatively cheap. The first "if"
+ ** figures out what position in the pattern
+ ** matches the last character in the buffer.
+ ** The inner "while" matches the pattern
+ ** against the buffer, backwards starting
+ ** at that position. Note that unless the
+ ** buffer ends with one of the characters
+ ** in the pattern (excluding the first
+ ** and last), we do only one test.
*/
- if ((ep = matchc( fdelimlen, fdelim, c, bp )))
- c = ep - bp + 1;
- else {
- /*
- ** There's no delim in the buffer
- ** but there may be a partial one
- ** at the end. If so, we want
- ** to leave it so the "eom" check
- ** on the next call picks it up.
- ** Use a modified Boyer-Moore
- ** matcher to make this check
- ** relatively cheap. The first
- ** "if" figures out what position
- ** in the pattern matches the
- ** last character in the buffer.
- ** The inner "while" matches the
- ** pattern against the buffer,
- ** backwards starting at that
- ** position. Note that unless
- ** the buffer ends with one of
- ** the characters in the pattern
- ** (excluding the first and last),
- ** we do only one test.
- */
- ep = bp + c - 1;
- if ((sp = pat_map[*ep])) {
- do {
+ ep = bp + c - 1;
+ if ((sp = pat_map[*ep])) {
+ do {
+ /*
+ ** This if() is true unless
+ ** (a) the buffer is too
+ ** small to contain this
+ ** delimiter prefix,
+ ** or (b) it contains
+ ** exactly enough chars for
+ ** the delimiter prefix.
+ ** For case (a) obviously we
+ ** aren't going to match.
+ ** For case (b), if the
+ ** buffer really contained
+ ** exactly a delim prefix,
+ ** then the m_eom call
+ ** at entry should have
+ ** found it. Thus it's
+ ** not a delim and we know
+ ** we won't get a match.
+ */
+ if (((sp - fdelim) + 2) <= c) {
+ cp = sp;
/*
- ** This if() is
- ** true unless (a)
- ** the buffer is too
- ** small to contain
- ** this delimiter
- ** prefix, or (b)
- ** it contains
- ** exactly enough
- ** chars for the
- ** delimiter prefix.
- ** For case (a)
- ** obviously we
- ** aren't going
- ** to match.
- ** For case (b),
- ** if the buffer
- ** really contained
- ** exactly a delim
- ** prefix, then
- ** the m_eom call
- ** at entry should
- ** have found it.
- ** Thus it's not
- ** a delim and we
- ** know we won't
- ** get a match.
+ ** Unfortunately although fdelim has a preceding NUL
+ ** we can't use this as a sentinel in case the buffer
+ ** contains a NUL in exactly the wrong place (this
+ ** would cause us to run off the front of fdelim).
*/
- if (((sp - fdelim) + 2) <= c) {
- cp = sp;
- /*
- ** Unfortunately although fdelim has a preceding NUL
- ** we can't use this as a sentinel in case the buffer
- ** contains a NUL in exactly the wrong place (this
- ** would cause us to run off the front of fdelim).
- */
- while (*--ep == *--cp)
- if (cp < fdelim)
- break;
- if (cp < fdelim) {
- /* we matched the entire delim prefix,
- ** so only take the buffer up to there.
- ** we know ep >= bp -- check above prevents underrun
- */
- c = (ep - bp) + 2;
+ while (*--ep == *--cp)
+ if (cp < fdelim)
break;
- }
+ if (cp < fdelim) {
+ /* we matched the entire delim prefix,
+ ** so only take the buffer up to there.
+ ** we know ep >= bp -- check above prevents underrun
+ */
+ c = (ep - bp) + 2;
+ break;
}
- /* try matching one less char of delim string */
- ep = bp + c - 1;
- } while (--sp > fdelim);
- }
+ }
+ /* try matching one less char of delim string */
+ ep = bp + c - 1;
+ } while (--sp > fdelim);
}
}
- memcpy( buf, bp, c );
+ }
+ memcpy( buf, bp, c );
#ifdef LINUX_STDIO
- iob->_IO_read_ptr += c;
+ iob->_IO_read_ptr += c;
#elif defined(__DragonFly__)
- ((struct __FILE_public *)iob)->_r -= c;
- ((struct __FILE_public *)iob)->_p += c;
+ ((struct __FILE_public *)iob)->_r -= c;
+ ((struct __FILE_public *)iob)->_p += c;
#else
- iob->_cnt -= c;
- iob->_ptr += c;
+ iob->_cnt -= c;
+ iob->_ptr += c;
#endif
- if (bufsz < 0) {
- msg_count = c;
- return (state);
- }
- cp = buf + c;
- break;
+ if (bufsz < 0) {
+ msg_count = c;
+ return (state);
+ }
+ cp = buf + c;
+ break;
- default:
- adios(NULL, "m_getfld() called with bogus state of %d", state);
+ default:
+ adios(EX_SOFTWARE, NULL, "m_getfld() called with bogus state of %d", state);
}
finish:
*cp = 0;
}
-#ifdef RPATHS
-static char unixbuf[BUFSIZ] = "";
-#endif /* RPATHS */
-
void
-m_unknown(FILE *iob)
+thisisanmbox(FILE *iob)
{
- register int c;
- register long pos;
+ int c;
char text[10];
- register char *cp;
- register char *delimstr;
+ char *cp;
+ char *delimstr;
-/*
-** Figure out what the message delimitter string is for this
-** maildrop. (This used to be part of m_Eom but I didn't like
-** the idea of an "if" statement that could only succeed on the
-** first call to m_Eom getting executed on each call, i.e., at
-** every newline in the message).
-**
-** If the first line of the maildrop is a Unix "From " line, we
-** say the style is MBOX and eat the rest of the line. Otherwise
-** we say the style is MMDF and look for the delimiter string
-** specified when nmh was built (or from the mts.conf file).
-*/
+ c = getc(iob);
+ if (feof(iob)) {
+ return;
+ }
+ ungetc(c, iob);
- msg_style = MS_UNKNOWN;
+ /*
+ ** Figure out what the message delimitter string is for this
+ ** maildrop. (This used to be part of m_Eom but I didn't like
+ ** the idea of an "if" statement that could only succeed on the
+ ** first call to m_Eom getting executed on each call, i.e., at
+ ** every newline in the message).
+ **
+ ** If the first line of the maildrop is a Unix "From " line, we
+ ** say the style is MBOX and eat the rest of the line. Otherwise
+ ** abort.
+ */
- pos = ftell(iob);
- if (fread(text, sizeof(*text), 5, iob) == 5
- && strncmp(text, "From ", 5) == 0) {
- msg_style = MS_MBOX;
- delimstr = "\nFrom ";
-#ifndef RPATHS
- while ((c = getc(iob)) != '\n' && c >= 0)
- ;
-#else /* RPATHS */
- cp = unixbuf;
- while ((c = getc(iob)) != '\n' && cp - unixbuf < BUFSIZ - 1)
- *cp++ = c;
- *cp = 0;
-#endif /* RPATHS */
- } else {
- /* not a Unix style maildrop */
- fseek(iob, pos, SEEK_SET);
- if (mmdlm2 == NULL || *mmdlm2 == 0)
- mmdlm2 = "\001\001\001\001\n";
- delimstr = mmdlm2;
- msg_style = MS_MMDF;
+ if (fread(text, sizeof(*text), 5, iob) != 5) {
+ adios(EX_IOERR, NULL, "Read error");
+ }
+ if (strncmp(text, "From ", 5)!=0) {
+ adios(EX_USAGE, NULL, "No Unix style (mbox) maildrop.");
+ }
+ ismbox = TRUE;
+ delimstr = "\nFrom ";
+ while ((c = getc(iob)) != '\n' && c >= 0) {
+ continue;
}
c = strlen(delimstr);
- fdelim = (unsigned char *) mh_xmalloc((size_t) (c + 3));
+ fdelim = mh_xcalloc(c + 3, sizeof(char));
*fdelim++ = '\0';
*fdelim = '\n';
msg_delim = (char *)fdelim+1;
strcpy(msg_delim, delimstr);
delimend = (unsigned char *)msg_delim + edelimlen;
if (edelimlen <= 1)
- adios(NULL, "maildrop delimiter must be at least 2 bytes");
+ adios(EX_DATAERR, NULL, "maildrop delimiter must be at least 2 bytes");
/*
** build a Boyer-Moore end-position map for the matcher in m_getfld.
** N.B. - we don't match just the first char (since it's the newline
** separator) or the last char (since the matchc would have found it
** if it was a real delim).
*/
- pat_map = (unsigned char **) calloc(256, sizeof(unsigned char *));
+ pat_map = mh_xcalloc(256, sizeof(unsigned char *));
for (cp = (char *) fdelim + 1; cp < (char *) delimend; cp++ )
pat_map[(unsigned char)*cp] = (unsigned char *) cp;
-
- if (msg_style == MS_MMDF) {
- /* flush extra msg hdrs */
- while ((c = Getc(iob)) >= 0 && eom(c, iob))
- ;
- if (c >= 0)
- ungetc(c, iob);
- }
}
static int
m_Eom(int c, FILE *iob)
{
- register long pos = 0L;
- register int i;
+ long pos = 0L;
+ int i;
char text[10];
-#ifdef RPATHS
- register char *cp;
-#endif /* RPATHS */
pos = ftell(iob);
- if ((i = fread(text, sizeof *text, edelimlen, iob)) != edelimlen
- || strncmp(text, (char *)edelim, edelimlen)) {
- if (i == 0 && msg_style == MS_MBOX)
+ if ((i = fread(text, sizeof *text, edelimlen, iob)) != edelimlen ||
+ (strncmp(text, (char *)edelim, edelimlen)!=0)) {
+ if (i == 0 && ismbox)
/*
** the final newline in the (brain damaged) unix-format
** maildrop is part of the delimitter - delete it.
*/
return 1;
-#if 0
- fseek(iob, pos, SEEK_SET);
-#endif
-
fseek(iob, (long)(pos-1), SEEK_SET);
getc(iob); /* should be OK */
return 0;
}
- if (msg_style == MS_MBOX) {
-#ifndef RPATHS
- while ((c = getc(iob)) != '\n')
- if (c < 0)
- break;
-#else /* RPATHS */
- cp = unixbuf;
- while ((c = getc(iob)) != '\n' && c >= 0 && cp - unixbuf < BUFSIZ - 1)
- *cp++ = c;
- *cp = 0;
-#endif /* RPATHS */
- }
-
- return 1;
-}
-
-
-#ifdef RPATHS
-/*
-** Return the Return-Path and Delivery-Date
-** header information.
-**
-** Currently, I'm assuming that the "From " line
-** takes one of the following forms.
-**
-** From sender date remote from host (for UUCP delivery)
-** From sender@host date (for sendmail delivery)
-*/
-
-int
-get_returnpath(char *rp, int rplen, char *dd, int ddlen)
-{
- char *ap, *bp, *cp, *dp;
-
- ap = unixbuf;
- if (!(bp = cp = strchr(ap, ' ')))
- return 0;
-
- /*
- ** Check for "remote from" in envelope to see
- ** if this message uses UUCP style addressing
- */
- while ((cp = strchr(++cp, 'r'))) {
- if (strncmp(cp, "remote from", 11) == 0) {
- cp = strrchr(cp, ' ');
- break;
+ if (ismbox) {
+ while ((c = getc(iob)) != '\n' && c >= 0) {
+ continue;
}
}
- /*
- ** Get the Return-Path information from
- ** the "From " envelope.
- */
- if (cp) {
- /* return path for UUCP style addressing */
- dp = strchr(++cp, '\n');
- snprintf(rp, rplen, "%.*s!%.*s\n", (int)(dp - cp), cp, (int)(bp - ap), ap);
- } else {
- /* return path for standard domain addressing */
- snprintf(rp, rplen, "%.*s\n", (int)(bp - ap), ap);
- }
-
- /*
- ** advance over the spaces to get to
- ** delivery date on envelope
- */
- while (*bp == ' ')
- bp++;
-
- /* Now get delivery date from envelope */
- snprintf(dd, ddlen, "%.*s\n", 24, bp);
-
- unixbuf[0] = 0;
return 1;
}
-#endif /* RPATHS */
static unsigned char *
matchc(int patln, char *pat, int strln, char *str)
{
- register char *es = str + strln - patln;
- register char *sp;
- register char *pp;
- register char *ep = pat + patln;
- register char pc = *pat++;
+ char *es = str + strln - patln;
+ char *sp;
+ char *pp;
+ char *ep = pat + patln;
+ char pc = *pat++;
for(;;) {
while (pc != *str++)
projects / mmh / blobdiff