#include <h/scansbr.h>
#include <h/tws.h>
#include <h/utils.h>
+#include <ctype.h>
+#include <sys/stat.h>
+#include <sysexits.h>
#ifdef _FSTDIO
# define _ptr _p /* Gag */
# define _cnt _w /* Wretch */
#endif
-#ifdef SCO_5_STDIO
-# define _ptr __ptr
-# define _cnt __cnt
-# define _base __base
-# define _filbuf(fp) ((fp)->__cnt = 0, __filbuf(fp))
-#endif
-
#define MAXSCANL 256 /* longest possible scan line */
/*
** Buffer size for content part of header fields. We want this
** to be large enough so that we don't do a lot of extra FLDPLUS
-** calls on m_getfld but small enough so that we don't snarf
-** the entire message body when we're only going to display 30
-** characters of it.
+** calls on m_getfld.
*/
#define SBUFSIZ 512
static struct format *fmt;
static struct comp *datecomp; /* pntr to "date" comp */
-static struct comp *bodycomp; /* pntr to "body" pseudo-comp (if referenced) */
static int ncomps = 0; /* # of interesting components */
static char **compbuffers = NULL; /* buffers for component text */
static struct comp **used_buf = NULL; /* stack for comp that use buffers */
char *scanl = NULL; /* text of most recent scanline */
#define FPUTS(buf) {\
- if (fputs(buf,scnout) == EOF)\
- adios(scnmsg, "write error on");\
+ if (fputs(buf, scnout) == EOF)\
+ adios(EX_IOERR, scnmsg, "write error on");\
}
/*
scan(FILE *inb, int innum, int outnum, char *fmtstr, int width, int curflg,
int unseen)
{
+ static int slwidth;
int i, compnum, state;
unsigned char *cp, *tmpbuf;
char **nxtbuf;
- char *saved_c_text = NULL;
struct comp *cptr;
struct comp **savecomp;
char *scnmsg = NULL;
FILE *scnout = NULL;
char name[NAMESZ];
- static int rlwidth, slwidth;
- char returnpath[BUFSIZ];
- char deliverydate[BUFSIZ];
- int incing = (outnum > 0);
- int ismbox = (outnum != 0);
+ int incing = (outnum != SCN_MBOX && outnum != SCN_FOLD);
+ int scanfolder = (outnum == SCN_FOLD);
+ long fpos;
+ struct stat st;
/* first-time only initialization */
if (!scanl) {
- if (width == 0) {
- if ((width = sc_width()) < WIDTH/2)
- width = WIDTH/2;
- else if (width > MAXSCANL)
- width = MAXSCANL;
- }
- dat[3] = slwidth = width;
- scanl = (char *) mh_xmalloc((size_t) SCAN_CHARWIDTH *
- (slwidth + 2) );
if (incing)
umask(~m_gmprot());
- /* Compile format string */
- ncomps = fmt_compile(fmtstr, &fmt) + 1;
+ if (fmtstr) {
+ if (width == 0) {
+ if ((width = sc_width()) < WIDTH/2)
+ width = WIDTH/2;
+ else if (width > MAXSCANL)
+ width = MAXSCANL;
+ }
+ dat[3] = slwidth = width;
+ scanl = (char *) mh_xmalloc((size_t) SCAN_CHARWIDTH *
+ (slwidth + 2)); /* probably for \n and \0 */
+ /* Compile format string */
+ ncomps = fmt_compile(fmtstr, &fmt) + 1;
+ FINDCOMP(datecomp, "date");
+ } else {
+ ncomps = 1;
+ datecomp = NULL;
+ }
- FINDCOMP(bodycomp, "body");
- FINDCOMP(datecomp, "date");
- nxtbuf = compbuffers = (char **) calloc((size_t) ncomps,
+ nxtbuf = compbuffers = (char **) mh_xcalloc((size_t) ncomps,
sizeof(char *));
- if (nxtbuf == NULL)
- adios(NULL, "unable to allocate component buffers");
- used_buf = (struct comp **) calloc((size_t) (ncomps+1),
- sizeof(struct comp *));
- if (used_buf == NULL)
- adios(NULL, "unable to allocate component buffer stack");
- used_buf += ncomps+1; *--used_buf = 0;
- rlwidth = bodycomp && (width > SBUFSIZ) ? width : SBUFSIZ;
+ used_buf = (struct comp **) mh_xcalloc((size_t) (ncomps+1),
+ sizeof(struct comp *));
+ /* NULL-terminate array */
+ used_buf += ncomps;
+ *used_buf = NULL;
+ /* allocate space for the items */
for (i = ncomps; i--; )
- *nxtbuf++ = mh_xmalloc(rlwidth);
+ *nxtbuf++ = mh_xmalloc(SBUFSIZ);
}
/*
dat[0] = innum ? innum : outnum;
dat[1] = curflg;
dat[4] = unseen;
+ fpos = ftell(inb);
/*
** Get the first field. If the message is non-empty
** and we're doing an "inc", open the output file.
*/
- if ((state = m_getfld(FLD, name, tmpbuf, rlwidth, inb)) == FILEEOF) {
+ if ((state = m_getfld(FLD, name, tmpbuf, SBUFSIZ, inb)) == FILEEOF) {
if (ferror(inb)) {
advise("read", "unable to"); /* "read error" */
return SCNFAT;
scnmsg = m_name(outnum);
if (*scnmsg == '?') /* msg num out of range */
return SCNNUM;
- if ((scnout = fopen(scnmsg, "w")) == NULL)
- adios(scnmsg, "unable to write");
- /*
- ** Add the Return-Path and Delivery-Date
- ** header fields to message.
- */
- if (get_returnpath(returnpath, sizeof(returnpath),
- deliverydate, sizeof(deliverydate))) {
- FPUTS("Return-Path: ");
- FPUTS(returnpath);
- FPUTS("Delivery-Date: ");
- FPUTS(deliverydate);
- }
+ if (!(scnout = fopen(scnmsg, "w")))
+ adios(EX_IOERR, scnmsg, "unable to write");
}
/* scan - main loop */
for (compnum = 1; ;
- state = m_getfld(state, name, tmpbuf, rlwidth, inb)) {
+ state = m_getfld(state, name, tmpbuf, SBUFSIZ, inb)) {
switch (state) {
case FLD:
case FLDPLUS:
compnum++;
if (incing) {
FPUTS(name);
- if (putc(':', scnout) == EOF)
- adios(scnmsg, "write error on");
+ FPUTS(":");
FPUTS(tmpbuf);
}
/*
** temp buffer (buffer switching saves an extra
** copy of the component text).
*/
- if ((cptr = wantcomp[CHASH(name)])) {
+ if (fmtstr && (cptr = wantcomp[CHASH(name)])) {
do {
- if (!mh_strcasecmp(name, cptr->c_name)) {
- if (! cptr->c_text) {
- cptr->c_text = tmpbuf;
- for (cp = tmpbuf + strlen(tmpbuf) - 1; cp >= tmpbuf; cp--)
- if (isspace(*cp))
- *cp = 0;
- else
- break;
- *--savecomp = cptr;
- tmpbuf = *nxtbuf++;
+ if (mh_strcasecmp(name, cptr->c_name)!=0) {
+ continue;
+ }
+ if (!cptr->c_text) {
+ cptr->c_text = tmpbuf;
+ cp = tmpbuf+strlen(tmpbuf)-1;
+ for (; cp >= tmpbuf; cp--) {
+ if (isspace(*cp))
+ *cp = '\0';
+ else
+ break;
}
- break;
+ *--savecomp = cptr;
+ tmpbuf = *nxtbuf++;
}
+ break;
} while ((cptr = cptr->c_next));
}
while (state == FLDPLUS) {
- state = m_getfld(state, name, tmpbuf, rlwidth,
+ state = m_getfld(state, name, tmpbuf, SBUFSIZ,
inb);
if (incing)
FPUTS(tmpbuf);
case BODY:
compnum = -1;
- if (!incing) {
- state = FILEEOF; /* stop here if scan cmd */
+ if (scanfolder) {
+ /* stop here if we scan a msg in a folder */
+ state = FILEEOF;
goto finished;
}
- if (putc('\n', scnout) == EOF)
- adios(scnmsg, "write error on");
- FPUTS(tmpbuf);
- /*
- ** performance hack: some people like to run "inc"
- ** on things like net.sources or large digests.
- ** We do a copy directly into the output buffer
- ** rather than going through an intermediate buffer.
- **
- ** We need the amount of data m_getfld found &
- ** don't want to do a strlen on the long buffer so
- ** there's a hack in m_getfld to save the amount
- ** of data it returned in the global "msg_count".
- */
+ /* otherwise (mbox): snarf the body */
+ if (incing) {
+ FPUTS("\n");
+ FPUTS(tmpbuf);
+ }
body:;
while (state == BODY) {
-#ifdef LINUX_STDIO
- if (scnout->_IO_write_ptr == scnout->_IO_write_end) {
-#elif defined(__DragonFly__)
- if (((struct __FILE_public *)scnout)->_w <= 0) {
-#else
- if (scnout->_cnt <= 0) {
-#endif
- if (fflush(scnout) == EOF)
- adios(scnmsg, "write error on");
+ state = m_getfld(state, name, tmpbuf, SBUFSIZ,
+ inb);
+ if (incing) {
+ FPUTS(tmpbuf);
}
-#ifdef LINUX_STDIO
- state = m_getfld(state, name, scnout->_IO_write_ptr, (long)scnout->_IO_write_ptr-(long)scnout->_IO_write_end , inb);
- scnout->_IO_write_ptr += msg_count;
-#elif defined(__DragonFly__)
- state = m_getfld(state, name, ((struct __FILE_public *)scnout)->_p, -(((struct __FILE_public *)scnout)->_w), inb);
- ((struct __FILE_public *)scnout)->_w -= msg_count;
- ((struct __FILE_public *)scnout)->_p += msg_count;
-#else
- state = m_getfld(state, name, scnout->_ptr, -(scnout->_cnt), inb);
- scnout->_cnt -= msg_count;
- scnout->_ptr += msg_count;
-#endif
}
goto finished;
if (incing) {
FPUTS("\n\nBAD MSG:\n");
FPUTS(name);
- if (putc('\n', scnout) == EOF)
- adios(scnmsg, "write error on");
- }
- if (ismbox) {
+ FPUTS("\n");
state = BODY;
goto body;
}
- /* fall through */
+ /* fall through if we scan only */
case FILEEOF:
goto finished;
default:
- adios(NULL, "getfld() returned %d", state);
+ adios(EX_SOFTWARE, NULL, "getfld() returned %d", state);
}
}
return SCNFAT;
}
- /* Save and restore buffer so we don't trash our dynamic pool! */
- if (bodycomp) {
- saved_c_text = bodycomp->c_text;
- bodycomp->c_text = tmpbuf;
- }
-
if (incing) {
if ((dat[2] = ftell(scnout)) == EOF)
- adios(scnmsg, "write error on");
+ adios(EX_IOERR, scnmsg, "write error on");
+ } else if (!scanfolder) {
+ if ((dat[2] = ftell(inb)) == EOF)
+ adios(EX_IOERR, scnmsg, "write error on");
+ dat[2] -= fpos;
}
- if ((datecomp && !datecomp->c_text) || !ismbox) {
- struct stat st;
-
+ if (fmtstr) {
fstat(fileno(inb), &st);
- if (!ismbox)
+ if (scanfolder) {
dat[2] = st.st_size;
- if (datecomp) {
- if (! datecomp->c_text) {
- if (datecomp->c_tws == NULL)
- datecomp->c_tws = (struct tws *) calloc((size_t) 1, sizeof(*datecomp->c_tws));
- if (datecomp->c_tws == NULL)
- adios(NULL, "unable to allocate tws buffer");
+ }
+ if (datecomp && !datecomp->c_text) {
+ if (!datecomp->c_text) {
+ if (!datecomp->c_tws)
+ datecomp->c_tws = (struct tws *) mh_xcalloc((size_t) 1, sizeof(*datecomp->c_tws));
+ if (!datecomp->c_tws)
+ adios(EX_OSERR, NULL, "unable to allocate tws buffer");
*datecomp->c_tws = *dlocaltime((time_t *) &st.st_mtime);
datecomp->c_flags |= CF_DATEFAB|CF_TRUE;
} else {
datecomp->c_flags &= ~CF_DATEFAB;
}
}
- }
- /* print the scan line */
- fmt_scan(fmt, scanl, slwidth, dat);
- if (fmtstr)
+ /* print the scan line */
+ fmt_scan(fmt, scanl, slwidth, dat);
fputs(scanl, stdout);
-
- if (bodycomp)
- bodycomp->c_text = saved_c_text;
+ }
/* return dynamically allocated buffers to pool */
while ((cptr = *savecomp++)) {
*--nxtbuf = tmpbuf;
if (incing && (ferror(scnout) || fclose(scnout) == EOF))
- adios(scnmsg, "write error on");
+ adios(EX_IOERR, scnmsg, "write error on");
return (state != FILEEOF ? SCNERR : SCNMSG);
}
projects / mmh / blobdiff