rsalz@uunet.uu.net (Rich Salz) (06/06/90)
Submitted-by: Syd Weinstein <syd@dsinc.dsi.com>
Posting-number: Volume 22, Issue 84
Archive-name: elm2.3/part26
---- Cut Here and unpack ----
#!/bin/sh
# this is part 26 of a multipart archive
# do not concatenate these parts, unpack them in order with /bin/sh
# file utils/readmsg.c continued
#
CurArch=26
if test ! -r s2_seq_.tmp
then echo "Please unpack part 1 first!"
exit 1; fi
( read Scheck
if test "$Scheck" != $CurArch
then echo "Please unpack part $Scheck next!"
exit 1;
else exit 0; fi
) < s2_seq_.tmp || exit 1
echo "x - Continuing file utils/readmsg.c"
sed 's/^X//' << 'SHAR_EOF' >> utils/readmsg.c
X last_message++;
X num = LAST_MESSAGE;
X }
X
X *argv++;
X
X read_message[messages++] = num;
X }
X
X /** and now sort 'em to ensure they're in a reasonable order... **/
X
X qsort(read_message, messages, sizeof(int), numcmp);
X }
X
X /** Now let's get to the mail file... **/
X
X if (strlen(infile) == 0) {
X if ((cp = getenv("MAIL")) == NULL) {
X if ((cp = getenv("LOGNAME")) == NULL)
X sprintf(infile, "%s/%s", mailhome, getenv("USER"));
X else
X sprintf(infile, "%s/%s", mailhome, cp);
X }
X else
X strcpy(infile, cp);
X }
X
X if ((file = fopen(infile, "r")) == NULL) {
X printf("But you have no mail! [ file = %d ]\n", infile);
X exit(0);
X }
X
X /** Now it's open, let's display some 'ole messages!! **/
X
X if (string_match || last_message) { /* pass through it once */
X
X if (last_message) {
X total = count_messages(file); /* instantiate count */
X for (num=0; num < messages; num++)
X if (read_message[num] == LAST_MESSAGE)
X read_message[num] = total;
X }
X else if (string_match)
X match_string(file, string); /* stick msg# in list */
X
X if (total == 0 && ! string_match) {
X printf("There aren't any messages to read!\n");
X exit(0);
X }
X }
X
X /** now let's have some fun! **/
X#ifdef MMDF
X newheader = 0;
X#endif /* MMDF */
X
X while (fgets(buffer, SLEN, file) != NULL) {
X#ifdef MMDF
X if (strcmp(buffer, MSG_SEPERATOR) == 0)
X newheader = !newheader;
X if (newheader && buffer[0] == '\001') {
X#else
X if (real_from(buffer)) {
X#endif /* MMDF */
X if (! list_all_messages) {
X if (current == read_message[current_in_queue])
X current_in_queue++;
X if (current_in_queue >= messages)
X exit(0);
X }
X current++;
X not_in_header = 0; /* we're in the header! */
X }
X if (current == read_message[current_in_queue] || list_all_messages)
X#ifdef MMDF
X if ((include_headers==ALL || not_in_header)
X && strcmp(buffer, MSG_SEPERATOR) != 0)
X#else
X if (include_headers==ALL || not_in_header)
X#endif /* MMDF */
X printf("%s", buffer);
X else if (strlen(buffer) < 2) {
X not_in_header++;
X if (include_headers==WEED)
X list_saved_headers(page_breaks);
X }
X else if (include_headers==WEED)
X possibly_save(buffer); /* check to see if we want this */
X }
X
X exit(0);
X}
X
Xint
Xcount_messages(file)
XFILE *file;
X{
X /** Returns the number of messages in the file **/
X
X char buffer[SLEN];
X int count = 0;
X#ifdef MMDF
X int newheader = 0;
X#endif /* MMDF */
X
X while (fgets(buffer, SLEN, file) != NULL)
X#ifdef MMDF
X if ((strcmp(buffer, MSG_SEPERATOR) == 0)
X && (++newheader % 2)) count++;
X#else
X if (strncmp(buffer, "From ", 5) == 0)
X count++;
X#endif /* MMDF */
X
X rewind( file );
X return( count );
X}
X
Xmatch_string(mailfile, string)
XFILE *mailfile;
Xchar *string;
X{
X /** Increment "messages" and put the number of the message
X in the message_count[] buffer until we match the specified
X string... **/
X
X char buffer[SLEN];
X int message_count = 0;
X#ifdef MMDF
X int newheader = 0;
X#endif /* MMDF */
X
X while (fgets(buffer, SLEN, mailfile) != NULL) {
X#ifdef MMDF
X if ((strcmp(buffer, MSG_SEPERATOR) == 0)
X && (++newheader % 2)) message_count++;
X#else
X if (strncmp(buffer, "From ", 5) == 0)
X message_count++;
X#endif /* MMDF */
X
X if (in_string(buffer, string)) {
X read_message[messages++] = message_count;
X rewind(mailfile);
X return;
X }
X }
X
X fprintf(stderr,"Couldn't find message containing '%s'\n", string);
X exit(1);
X}
X
Xint
Xnumcmp(a, b)
Xint *a, *b;
X{
X /** compare 'a' to 'b' returning less than, equal, or greater
X than, accordingly.
X **/
X
X return(*a - *b);
X}
X
Xstatic char from[SLEN], subject[SLEN], date[SLEN], to[SLEN];
X
Xpossibly_save(buffer)
Xchar *buffer;
X{
X /** Check to see what "buffer" is...save it if it looks
X interesting... We'll always try to get SOMETHING
X by tearing apart the "From " line... **/
X
X if (strncmp(buffer, "Date:", 5) == 0)
X strcpy(date, buffer);
X else if (strncmp(buffer, "Subject:", 8) == 0)
X strcpy(subject,buffer);
X else if (strncmp(buffer,"From:", 5) == 0)
X strcpy(from, buffer);
X else if (strncmp(buffer,"To: ", 3) == 0)
X strncpy(to, buffer, SLEN);
X else if (strncmp(buffer,"From ", 5) == 0) {
X sprintf(from, "From: %s\n", words(2,1, buffer));
X sprintf(date,"Date: %s", words(3,7, buffer));
X to[0] = '\0';
X subject[0] = '\0';
X }
X}
X
Xlist_saved_headers(page_break)
Xint page_break;
X{
X /** This routine will display the information saved from the
X message being listed...If it displays anything it'll end
X with a blank line... **/
X
X register int displayed_line = FALSE;
X static int messages_listed = 0;
X
X if (messages_listed++)
X if (page_break)
X putchar(FORMFEED);
X else
X printf(
X"\n--------------------------------------------------------------------\n\n\n");
X
X if (strlen(from) > 0) { printf("%s", from); displayed_line++;}
X if (strlen(subject) > 0) { printf("%s", subject); displayed_line++;}
X if (strlen(to) > 0) { printf("%s", to); displayed_line++;}
X if (strlen(date) > 0) { printf("%s", date); displayed_line++;}
X
X if (displayed_line)
X putchar('\n');
X}
X
Xchar *words(word, num_words, buffer)
Xint word, num_words;
Xchar *buffer;
X{
X /** Return a buffer starting at 'word' and containing 'num_words'
X words from buffer. Assume white space will delimit each word.
X **/
X
X static char internal_buffer[SLEN];
X char *wordptr, *bufptr, mybuffer[SLEN], *strtok();
X int wordnumber = 0, copying_words = 0;
X
X internal_buffer[0] = '\0'; /* initialize */
X
X strcpy(mybuffer, buffer);
X bufptr = (char *) mybuffer; /* and setup */
X
X while ((wordptr = strtok(bufptr, " \t")) != NULL) {
X if (++wordnumber == word) {
X strcpy(internal_buffer, wordptr);
X copying_words++;
X num_words--;
X }
X else if (copying_words) {
X strcat(internal_buffer, " ");
X strcat(internal_buffer, wordptr);
X num_words--;
X }
X
X if (num_words < 1)
X return((char *) internal_buffer);
X
X bufptr = NULL;
X }
X
X return( (char *) internal_buffer);
X}
X
Xint
Xreal_from(buffer)
Xchar *buffer;
X{
X /***** Returns true iff 's' has the seven 'from' fields, (or
X 8 - some machines include the TIME ZONE!!!) *****/
X
X char sixthword[STRING], seventhword[STRING],
X eighthword[STRING], ninthword[STRING];
X
X /* From <user> <day> <month> <day> <hr:min:sec> <year> */
X
X if(strncmp(buffer, "From ", 5) != 0)
X return(FALSE);
X
X /* Extract 6th, 7th, 8th, and 9th words */
X seventhword[0] = eighthword[0] = ninthword[0] = '\0';
X sscanf(buffer, "%*s %*s %*s %*s %*s %s %s %s %s",
X sixthword, seventhword, eighthword, ninthword);
X
X /* Not a from line if 6th word doesn't have colons for time field */
X if(strlen(sixthword) < 3)
X return(FALSE);
X if (sixthword[1] != ':' && sixthword[2] != ':')
X return(FALSE);
X
X /* Not a from line if there is no seventh word */
X if(seventhword[0] == '\0')
X return(FALSE);
X
X /* Not a from line if there is a ninthword */
X if (eighthword[0] != '\0') {
X if(ninthword[0] != '\0')
X return(FALSE);
X }
X
X return(TRUE);
X}
SHAR_EOF
echo "File utils/readmsg.c is complete"
chmod 0444 utils/readmsg.c || echo "restore of utils/readmsg.c fails"
rm -f s2_seq_.tmp
echo "You have unpacked the last part"
exit 0
exit 0 # Just in case...
--
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