Moved sendsbr.c into send.c as it is not compiled into other binaries anymore.
authormarkus schnalke <meillo@marmaro.de>
Wed, 8 Feb 2012 17:04:44 +0000 (18:04 +0100)
committermarkus schnalke <meillo@marmaro.de>
Wed, 8 Feb 2012 17:04:44 +0000 (18:04 +0100)
h/prototypes.h
uip/Makefile.in
uip/send.c
uip/sendsbr.c [deleted file]

index 699c8b8..9425b6d 100644 (file)
@@ -152,6 +152,5 @@ void annopreserve(int);
 int distout(char *, char *, char *);
 void replout(FILE *, char *, char *, struct msgs *, int,
                char *, char *, char *);
-int sendsbr(char **, int, char *, struct stat *, int);
 int what_now(char *, int, int, char *, char *, int, struct msgs *,
                char *, int, char *);
index b36bc75..80e8001 100644 (file)
@@ -74,7 +74,7 @@ SRCS = ali.c aliasbr.c anno.c annosbr.c ap.c burst.c comp.c \
        msgchk.c new.c packf.c pick.c picksbr.c \
        prompter.c rcvdist.c rcvpack.c rcvstore.c rcvtty.c \
        refile.c repl.c replsbr.c rmf.c rmm.c scan.c scansbr.c send.c \
-       sendsbr.c sendfiles.sh show.c slocal.c sortm.c spost.c termsbr.c \
+       sendfiles.sh show.c slocal.c sortm.c spost.c termsbr.c \
        whatnow.c whatnowproc.c
 
 # auxiliary files
@@ -204,8 +204,8 @@ rmm: rmm.o $(LOCALLIBS)
 scan: scan.o scansbr.o termsbr.o $(LOCALLIBS)
        $(LINK) scan.o scansbr.o termsbr.o $(LINKLIBS) $(TERMLIB)
 
-send: send.o sendsbr.o annosbr.o distsbr.o $(LOCALLIBS)
-       $(LINK) send.o sendsbr.o annosbr.o distsbr.o $(LINKLIBS)
+send: send.o annosbr.o distsbr.o $(LOCALLIBS)
+       $(LINK) send.o annosbr.o distsbr.o $(LINKLIBS)
 
 sendfiles: sendfiles.sh
        cp sendfiles.sh sendfiles
index 7a8b8e6..da401e6 100644 (file)
 #include <fcntl.h>
 #include <errno.h>
 #include <signal.h>
+#include <h/signals.h>
+#include <setjmp.h>
+#include <h/mime.h>
+#include <h/tws.h>
+#include <h/utils.h>
+
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# ifdef TM_IN_SYS_TIME
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
+int debugsw = 0;  /* global */
+int forwsw  = 1;
+int inplace = 1;
+int pushsw  = 0;
+int verbsw  = 0;
+char *altmsg   = NULL;
+char *annotext = NULL;
+char *distfile = NULL;
+
+static jmp_buf env;
+
+/* name of temp file for body content */
+static char body_file_name[MAXPATHLEN + 1];
+/* name of mhbuild composition temporary file */
+static char composition_file_name[MAXPATHLEN + 1]; 
+static int field_size;  /* size of header field buffer */
+static char *field;  /* header field buffer */
+static FILE *draft_file;  /* draft file pointer */
+static FILE *body_file;  /* body file pointer */
+static FILE *composition_file;  /* composition file pointer */
+
+/*
+** external prototypes
+*/
+char *getusername(void);
+
+/*
+** static prototypes
+*/
+static int sendsbr(char **, int, char *, struct stat *, int);
+static void armed_done(int) NORETURN;
+static void alert(char *, int);
+static int tmp_fd(void);
+static void anno(int, struct stat *);
+static void annoaux(int);
+static int sendaux(char **, int, char *, struct stat *);
+
+static int attach(char *);
+static void clean_up_temporary_files(void);
+static int get_line(void);
+static void make_mime_composition_file_entry(char *);
 
 
 static struct swit switches[] = {
@@ -48,16 +106,6 @@ static struct swit switches[] = {
        { NULL, 0 }
 };
 
-extern int debugsw;  /* from sendsbr.c */
-extern int forwsw;
-extern int inplace;
-extern int pushsw;
-extern int verbsw;
-
-extern char *altmsg;  /*  .. */
-extern char *annotext;
-extern char *distfile;
-
 
 int
 main(int argc, char **argv)
@@ -274,3 +322,655 @@ main(int argc, char **argv)
        done(status);
        return 1;
 }
+
+
+/*
+** send message back-end
+*/
+static int
+sendsbr(char **vec, int vecp, char *drft, struct stat *st, int rename_drft)
+{
+       int status;
+       char buffer[BUFSIZ];
+       char *original_draft;  /* name of original draft file */
+       char *p;  /* string pointer for building file name */
+
+       /*
+       ** Save the original name of the draft file.  The name of the
+       ** draft file is changed to a temporary file containing the built
+       ** MIME message if there are attachments.  We need the original
+       ** name so that it can be renamed after the message is sent.
+       */
+
+       original_draft = drft;
+
+       /*
+       ** Convert the draft to a MIME message.
+       ** Use the mhbuild composition file for the draft if there was
+       ** a successful conversion because that now contains the MIME
+       ** message.  A nice side effect of this is that it leaves the
+       ** original draft file untouched so that it can be retrieved
+       ** and modified if desired.
+       */
+       switch (attach(drft)) {
+       case OK:
+               drft = composition_file_name;
+               break;
+
+       case NOTOK:
+               return (NOTOK);
+
+       case DONE:
+               break;
+       }
+
+       done=armed_done;
+       switch (setjmp(env)) {
+       case OK:
+               status = sendaux(vec, vecp, drft, st) ? NOTOK : OK;
+               /* rename the original draft */
+               if (rename_drft && status == OK &&
+                               rename(original_draft, strncpy(buffer,
+                               m_backup(original_draft), sizeof(buffer)))
+                               == NOTOK)
+                       advise(buffer, "unable to rename %s to", drft);
+               break;
+
+       default:
+               status = DONE;
+               break;
+       }
+
+       done=exit;
+       if (distfile)
+               unlink(distfile);
+
+       /*
+       ** Get rid of any temporary files that we created for attachments.
+       ** Also get rid of the renamed composition file that mhbuild
+       ** leaves as a turd.  It looks confusing, but we use the body
+       ** file name to help build the renamed composition file name.
+       */
+
+       if (drft == composition_file_name) {
+               clean_up_temporary_files();
+
+               if (strlen(composition_file_name) >=
+                               sizeof (composition_file_name) - 6)
+                       advise(NULL, "unable to remove original composition file.");
+
+               else {
+                       if ((p = strrchr(composition_file_name, '/')) == NULL)
+                               p = composition_file_name;
+                       else
+                               p++;
+
+                       strcpy(body_file_name, p);
+                       *p++ = ',';
+                       strcpy(p, body_file_name);
+                       strcat(p, ".orig");
+
+                       unlink(composition_file_name);
+               }
+       }
+
+       return status;
+}
+
+static int
+attach(char *draft_file_name)
+{
+       char buf[MAXPATHLEN + 6];  /* miscellaneous buffer */
+       int c;  /* current character for body copy */
+       int has_attachment;  /* draft has at least one attachment */
+       int has_body;  /* draft has a message body */
+       int non_ascii; /* msg body contains non-ASCII chars */
+       int length;  /* length of attachment header field name */
+       char *p;  /* miscellaneous string pointer */
+
+       /* Open up the draft file. */
+       if ((draft_file = fopen(draft_file_name, "r")) == (FILE *)0)
+               adios(NULL, "can't open draft file `%s'.",
+                               draft_file_name);
+
+       /*
+       **  Allocate a buffer to hold the header components as they're read in.
+       **  This buffer might need to be quite large, so we grow it as needed.
+       */
+       field = (char *)mh_xmalloc(field_size = 256);
+
+       /*
+       ** Scan the draft file for an attachment header field name.
+       ** The existence of one indicates that the
+       ** draft has attachments.  Bail out if there are no attachments
+       ** because we're done.  Read to the end of the headers even if
+       ** we have no attachments.
+       */
+       length = strlen(attach_hdr);
+
+       has_attachment = 0;
+
+       while (get_line() != EOF && *field != '\0' && *field != '-') {
+               if (strncasecmp(field, attach_hdr, length) == 0 &&
+                               field[length] == ':') {
+                       has_attachment = 1;
+               }
+       }
+
+       /*
+       ** Look for at least one non-blank line in the body of the
+       ** message which indicates content in the body.
+       ** Check if body contains at least one non-blank (= not empty)
+       ** and if it contains any non-ASCII chars (= need MIME).
+       */
+       has_body = 0;
+       non_ascii = 0;
+
+       while (get_line() != EOF) {
+               for (p = field; *p != '\0'; p++) {
+                       if (*p != ' ' && *p != '\t') {
+                               has_body = 1;
+                       }
+                       if (*p > 127 || *p < 0) {
+                               non_ascii = 1;
+                       }
+               }
+               if (has_body && non_ascii)
+                       break;
+       }
+
+       /*
+       ** Bail out if there are no attachments and only ASCII text.
+       ** This means we don't need to convert it to MIME.
+       */
+       if (!has_attachment && non_ascii==0) {
+               return DONE;
+       }
+
+       /*
+       ** Else: mimify
+       */
+
+       /* Make names for the temporary files.  */
+       strncpy(body_file_name,
+                       m_mktemp(toabsdir(invo_name), NULL, NULL),
+                       sizeof (body_file_name));
+       strncpy(composition_file_name,
+                       m_mktemp(toabsdir(invo_name), NULL, NULL),
+                       sizeof (composition_file_name));
+
+       if (has_body)
+               body_file = fopen(body_file_name, "w");
+
+       composition_file = fopen(composition_file_name, "w");
+
+       if ((has_body && !body_file) || !composition_file) {
+               clean_up_temporary_files();
+               adios(NULL, "unable to open all of the temporary files.");
+       }
+
+       /*
+       ** Start at the beginning of the draft file.  Copy all
+       ** non-attachment header fields to the temporary composition file.
+       ** Then add the dashed line separator.
+       */
+       rewind(draft_file);
+       while (get_line() != EOF && *field && *field != '-') {
+               if (strncasecmp(field, attach_hdr, length) != 0 ||
+                               field[length] != ':') {
+                       fprintf(composition_file, "%s\n", field);
+               }
+       }
+       fputs("--------\n", composition_file);
+
+       if (has_body) {
+               /* Copy the message body to the temporary file. */
+               while ((c = getc(draft_file)) != EOF) {
+                       putc(c, body_file);
+               }
+               fclose(body_file);
+
+               /* Add a mhbuild MIME composition file line for the body */
+               /* charset will be discovered/guessed by buildmimeproc */
+               fprintf(composition_file, "#text/plain %s\n", body_file_name);
+       }
+
+       /*
+       ** Now, go back to the beginning of the draft file and look for
+       ** header fields that specify attachments.  Add a mhbuild MIME
+       ** composition file for each.
+       */
+       rewind(draft_file);
+       while (get_line() != EOF && *field && *field != '-') {
+               if (strncasecmp(field, attach_hdr, length) == 0 &&
+                               field[length] == ':') {
+                       for (p = field+length+1; *p==' ' || *p=='\t'; p++) {
+                               continue;
+                       }
+                       if (*p == '+') {
+                               /* forwarded message */
+                               fprintf(composition_file, "#forw [forwarded message(s)] %s\n", p);
+                       } else {
+                               make_mime_composition_file_entry(p);
+                       }
+               }
+       }
+
+       fclose(composition_file);
+
+       /*
+       ** We're ready to roll!  Run mhbuild on the composition file.
+       ** Note that mhbuild is in the context as buildmimeproc.
+       */
+       sprintf(buf, "%s %s", buildmimeproc, composition_file_name);
+
+       if (system(buf) != 0) {
+               clean_up_temporary_files();
+               return (NOTOK);
+       }
+
+       return (OK);
+}
+
+static void
+clean_up_temporary_files(void)
+{
+       unlink(body_file_name);
+       unlink(composition_file_name);
+
+       return;
+}
+
+static int
+get_line(void)
+{
+       int c;  /* current character */
+       int n;  /* number of bytes in buffer */
+       char *p;  /* buffer pointer */
+
+       /*
+       ** Get a line from the input file, growing the field buffer as
+       ** needed.  We do this so that we can fit an entire line in the
+       ** buffer making it easy to do a string comparison on both the
+       ** field name and the field body which might be a long path name.
+       */
+
+       for (n = 0, p = field; (c = getc(draft_file)) != EOF; *p++ = c) {
+               if (c == '\n' && (c = getc(draft_file)) != ' ' && c != '\t') {
+                       ungetc(c, draft_file);
+                       c = '\n';
+                       break;
+               }
+
+               if (++n >= field_size - 1) {
+                       field = (char *)mh_xrealloc((void *)field, field_size += 256);
+
+                       p = field + n - 1;
+               }
+       }
+
+       /* NUL-terminate the field. */
+       *p = '\0';
+
+       return (c);
+}
+
+static void
+make_mime_composition_file_entry(char *file_name)
+{
+       FILE *fp;
+       struct node *np;
+       char *cp;
+       char content_type[BUFSIZ];
+       char cmdbuf[BUFSIZ];
+       char *cmd = mimetypequeryproc;
+
+       for (np = m_defs; np; np = np->n_next) {
+               if (strcasecmp(np->n_name, mimetypequery)==0) {
+                       cmd = np->n_field;
+                       break;
+               }
+       }
+       snprintf(cmdbuf, sizeof cmdbuf, "%s %s", cmd, file_name);
+
+       if (!(fp = popen(cmdbuf, "r"))) {
+               clean_up_temporary_files();
+               adios(NULL, "unable to determine content type with `%s'",
+                               cmdbuf);
+       }
+       if (fgets(content_type, sizeof content_type, fp) &&
+                       (cp = strrchr(content_type, '\n'))) {
+               *cp = '\0';
+       } else {
+               strcpy(content_type, "application/octet-stream");
+               admonish(NULL, "problems with `%s', using fall back type `%s'",
+                               cmdbuf, content_type);
+       }
+       pclose(fp);
+
+       /* TODO: don't use access(2) because it checks for ruid, not euid */
+       if (access(file_name, R_OK) != 0) {
+               clean_up_temporary_files();
+               adios(NULL, "unable to access file `%s'", file_name);
+       }
+
+       fprintf(composition_file, "#%s; name=\"%s\" <>{attachment}",
+               content_type,
+               (!(cp = strrchr(file_name, '/'))) ? file_name : cp + 1);
+
+       fprintf(composition_file, " %s\n", file_name);
+
+       return;
+}
+
+/*
+** Annotate original message, and
+** call `postproc' to send message.
+*/
+static int
+sendaux(char **vec, int vecp, char *drft, struct stat *st)
+{
+       pid_t child_id;
+       int i, status, fd, fd2;
+       char backup[BUFSIZ];
+
+       fd = pushsw ? tmp_fd() : NOTOK;
+       fd2 = NOTOK;
+
+       vec[vecp++] = drft;
+       if (annotext && (fd2 = tmp_fd()) == NOTOK) {
+               admonish(NULL, "unable to create file for annotation list");
+       }
+       if (distfile && distout(drft, distfile, backup) == NOTOK)
+               done(1);
+       vec[vecp] = NULL;
+
+       for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
+               sleep(5);
+
+       switch (child_id) {
+       case -1:
+               /* oops -- fork error */
+               adios("fork", "unable to");
+               break;  /* NOT REACHED */
+
+       case 0:
+               /*
+               ** child process -- send it
+               **
+               ** If fd is ok, then we are pushing and fd points to temp
+               ** file, so capture anything on stdout and stderr there.
+               */
+               if (fd != NOTOK) {
+                       dup2(fd, fileno(stdout));
+                       dup2(fd, fileno(stderr));
+                       close(fd);
+               }
+               execvp(postproc, vec);
+               fprintf(stderr, "unable to exec ");
+               perror(postproc);
+               _exit(-1);
+               break;  /* NOT REACHED */
+
+       default:
+               /*
+               ** parent process -- wait for it
+               */
+               if ((status = pidwait(child_id, NOTOK)) == OK) {
+                       if (annotext && fd2 != NOTOK)
+                               anno(fd2, st);
+               } else {
+                       /*
+                       ** If postproc failed, and we have good fd (which
+                       ** means we pushed), then mail error message
+                       ** (and possibly the draft) back to the user.
+                       */
+                       if (fd != NOTOK) {
+                               alert(drft, fd);
+                               close(fd);
+                       } else {
+                               advise(NULL, "message not delivered to anyone");
+                       }
+                       if (annotext && fd2 != NOTOK)
+                               close(fd2);
+                       if (distfile) {
+                               unlink(drft);
+                               if (rename(backup, drft) == NOTOK)
+                                       advise(drft, "unable to rename %s to",
+                                                       backup);
+                       }
+               }
+               break;
+       }
+
+       return status;
+}
+
+
+/*
+** Mail error notification (and possibly a copy of the
+** message) back to the user, using the mailproc
+*/
+static void
+alert(char *file, int out)
+{
+       pid_t child_id;
+       int i, in;
+       char buf[BUFSIZ];
+
+       for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
+               sleep(5);
+
+       switch (child_id) {
+       case NOTOK:
+               /* oops -- fork error */
+               advise("fork", "unable to");
+
+       case OK:
+               /* child process -- send it */
+               SIGNAL(SIGHUP, SIG_IGN);
+               SIGNAL(SIGINT, SIG_IGN);
+               SIGNAL(SIGQUIT, SIG_IGN);
+               SIGNAL(SIGTERM, SIG_IGN);
+               if (forwsw) {
+                       if ((in = open(file, O_RDONLY)) == NOTOK) {
+                               admonish(file, "unable to re-open");
+                       } else {
+                               lseek(out, (off_t) 0, SEEK_END);
+                               strncpy(buf, "\nMessage not delivered to anyone.\n", sizeof(buf));
+                               write(out, buf, strlen(buf));
+                               strncpy(buf, "\n------- Unsent Draft\n\n", sizeof(buf));
+                               write(out, buf, strlen(buf));
+                               cpydgst(in, out, file, "temporary file");
+                               close(in);
+                               strncpy(buf, "\n------- End of Unsent Draft\n", sizeof(buf));
+                               write(out, buf, strlen(buf));
+                               if (rename(file, strncpy(buf, m_backup(file), sizeof(buf))) == NOTOK)
+                                       admonish(buf, "unable to rename %s to", file);
+                       }
+               }
+               lseek(out, (off_t) 0, SEEK_SET);
+               dup2(out, fileno(stdin));
+               close(out);
+               /* create subject for error notification */
+               snprintf(buf, sizeof(buf), "send failed on %s",
+                               forwsw ? "enclosed draft" : file);
+
+               execlp(mailproc, mhbasename(mailproc), getusername(),
+                               "-subject", buf, NULL);
+               fprintf(stderr, "unable to exec ");
+               perror(mailproc);
+               _exit(-1);
+
+       default:  /* no waiting... */
+               break;
+       }
+}
+
+
+static int
+tmp_fd(void)
+{
+       int fd;
+       char *tfile = NULL;
+
+       tfile = m_mktemp2(NULL, invo_name, &fd, NULL);
+       if (tfile == NULL) return NOTOK;
+       fchmod(fd, 0600);
+
+       if (debugsw)
+               advise(NULL, "temporary file %s selected", tfile);
+       else
+               if (unlink(tfile) == NOTOK)
+                       advise(tfile, "unable to remove");
+
+       return fd;
+}
+
+
+static void
+anno(int fd, struct stat *st)
+{
+       pid_t child_id;
+       sigset_t set, oset;
+       static char *cwd = NULL;
+       struct stat st2;
+
+       if (altmsg && (stat(altmsg, &st2) == NOTOK ||
+                       st->st_mtime != st2.st_mtime ||
+                       st->st_dev != st2.st_dev ||
+                       st->st_ino != st2.st_ino)) {
+               if (debugsw)
+                       admonish(NULL, "$mhaltmsg mismatch");
+               return;
+       }
+
+       child_id = debugsw ? NOTOK : fork();
+       switch (child_id) {
+       case NOTOK:  /* oops */
+               if (!debugsw)
+                       advise(NULL, "unable to fork, so doing annotations by hand...");
+               if (cwd == NULL)
+                       cwd = getcpy(pwd());
+               /* fall */
+
+       case OK:
+               /* block a few signals */
+               sigemptyset(&set);
+               sigaddset(&set, SIGHUP);
+               sigaddset(&set, SIGINT);
+               sigaddset(&set, SIGQUIT);
+               sigaddset(&set, SIGTERM);
+               SIGPROCMASK(SIG_BLOCK, &set, &oset);
+
+               annoaux(fd);
+               if (child_id == OK)
+                       _exit(0);
+
+               /* reset the signal mask */
+               SIGPROCMASK(SIG_SETMASK, &oset, &set);
+
+               chdir(cwd);
+               break;
+
+       default:  /* no waiting... */
+               close(fd);
+               break;
+       }
+}
+
+
+static void
+annoaux(int fd)
+{
+       int fd2, fd3, msgnum;
+       char *cp, *folder, *maildir;
+       char buffer[BUFSIZ], **ap;
+       FILE *fp;
+       struct msgs *mp;
+
+       if ((folder = getenv("mhfolder")) == NULL || *folder == 0) {
+               if (debugsw)
+                       admonish(NULL, "$mhfolder not set");
+               return;
+       }
+       maildir = toabsdir(folder);
+       if (chdir(maildir) == NOTOK) {
+               if (debugsw)
+                       admonish(maildir, "unable to change directory to");
+               return;
+       }
+       if (!(mp = folder_read(folder))) {
+               if (debugsw)
+                       admonish(NULL, "unable to read folder %s", folder);
+               return;
+       }
+
+       /* check for empty folder */
+       if (mp->nummsg == 0) {
+               if (debugsw)
+                       admonish(NULL, "no messages in %s", folder);
+               goto oops;
+       }
+
+       if ((cp = getenv("mhmessages")) == NULL || *cp == 0) {
+               if (debugsw)
+                       admonish(NULL, "$mhmessages not set");
+               goto oops;
+       }
+       if (!debugsw  /* MOBY HACK... */
+                       && pushsw
+                       && (fd3 = open("/dev/null", O_RDWR)) != NOTOK
+                       && (fd2 = dup(fileno(stderr))) != NOTOK) {
+               dup2(fd3, fileno(stderr));
+               close(fd3);
+       } else
+               fd2 = NOTOK;
+       for (ap = brkstring(cp = getcpy(cp), " ", NULL); *ap; ap++)
+               m_convert(mp, *ap);
+       free(cp);
+       if (fd2 != NOTOK)
+               dup2(fd2, fileno(stderr));
+       if (mp->numsel == 0) {
+               if (debugsw)
+                       admonish(NULL, "no messages to annotate");
+               goto oops;
+       }
+
+       lseek(fd, (off_t) 0, SEEK_SET);
+       if ((fp = fdopen(fd, "r")) == NULL) {
+               if (debugsw)
+                       admonish(NULL, "unable to fdopen annotation list");
+               goto oops;
+       }
+       cp = NULL;
+       while (fgets(buffer, sizeof(buffer), fp) != NULL)
+               cp = add(buffer, cp);
+       fclose(fp);
+
+       if (debugsw)
+               advise(NULL, "annotate%s with %s: \"%s\"",
+                               inplace ? " inplace" : "", annotext, cp);
+       for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
+               if (is_selected(mp, msgnum)) {
+                       if (debugsw)
+                               advise(NULL, "annotate message %d", msgnum);
+                       annotate(m_name(msgnum), annotext, cp, inplace,
+                                       1, -2, 0);
+               }
+       }
+
+       free(cp);
+
+oops:
+       folder_free(mp);  /* free folder/message structure */
+}
+
+
+static void
+armed_done(int status)
+{
+       longjmp(env, status ? status : NOTOK);
+
+       exit(status);
+}
diff --git a/uip/sendsbr.c b/uip/sendsbr.c
deleted file mode 100644 (file)
index 029ccb7..0000000
+++ /dev/null
@@ -1,723 +0,0 @@
-/*
-** sendsbr.c -- routines to help WhatNow/Send along
-**
-** 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 <h/mh.h>
-#include <h/signals.h>
-#include <setjmp.h>
-#include <signal.h>
-#include <fcntl.h>
-#include <h/mime.h>
-#include <h/tws.h>
-#include <h/utils.h>
-
-#ifdef TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# ifdef TM_IN_SYS_TIME
-#  include <sys/time.h>
-# else
-#  include <time.h>
-# endif
-#endif
-
-int debugsw = 0;  /* global */
-int forwsw  = 1;
-int inplace = 1;
-int pushsw  = 0;
-int verbsw  = 0;
-
-char *altmsg   = NULL;  /*  .. */
-char *annotext = NULL;
-char *distfile = NULL;
-
-static jmp_buf env;
-
-/* name of temp file for body content */
-static char body_file_name[MAXPATHLEN + 1];
-/* name of mhbuild composition temporary file */
-static char composition_file_name[MAXPATHLEN + 1]; 
-static int field_size;  /* size of header field buffer */
-static char *field;  /* header field buffer */
-static FILE *draft_file;  /* draft file pointer */
-static FILE *body_file;  /* body file pointer */
-static FILE *composition_file;  /* composition file pointer */
-
-/*
-** external prototypes
-*/
-int sendsbr(char **, int, char *, struct stat *, int);
-char *getusername(void);
-
-/*
-** static prototypes
-*/
-static void armed_done(int) NORETURN;
-static void alert(char *, int);
-static int tmp_fd(void);
-static void anno(int, struct stat *);
-static void annoaux(int);
-static int sendaux(char **, int, char *, struct stat *);
-
-static int attach(char *);
-static void clean_up_temporary_files(void);
-static int get_line(void);
-static void make_mime_composition_file_entry(char *);
-
-
-/*
-** Entry point into (back-end) routines to send message.
-*/
-
-int
-sendsbr(char **vec, int vecp, char *drft, struct stat *st, int rename_drft)
-{
-       int status;
-       char buffer[BUFSIZ];
-       char *original_draft;  /* name of original draft file */
-       char *p;  /* string pointer for building file name */
-
-       /*
-       ** Save the original name of the draft file.  The name of the
-       ** draft file is changed to a temporary file containing the built
-       ** MIME message if there are attachments.  We need the original
-       ** name so that it can be renamed after the message is sent.
-       */
-
-       original_draft = drft;
-
-       /*
-       ** Convert the draft to a MIME message.
-       ** Use the mhbuild composition file for the draft if there was
-       ** a successful conversion because that now contains the MIME
-       ** message.  A nice side effect of this is that it leaves the
-       ** original draft file untouched so that it can be retrieved
-       ** and modified if desired.
-       */
-       switch (attach(drft)) {
-       case OK:
-               drft = composition_file_name;
-               break;
-
-       case NOTOK:
-               return (NOTOK);
-
-       case DONE:
-               break;
-       }
-
-       done=armed_done;
-       switch (setjmp(env)) {
-       case OK:
-               status = sendaux(vec, vecp, drft, st) ? NOTOK : OK;
-               /* rename the original draft */
-               if (rename_drft && status == OK &&
-                               rename(original_draft, strncpy(buffer,
-                               m_backup(original_draft), sizeof(buffer)))
-                               == NOTOK)
-                       advise(buffer, "unable to rename %s to", drft);
-               break;
-
-       default:
-               status = DONE;
-               break;
-       }
-
-       done=exit;
-       if (distfile)
-               unlink(distfile);
-
-       /*
-       ** Get rid of any temporary files that we created for attachments.
-       ** Also get rid of the renamed composition file that mhbuild
-       ** leaves as a turd.  It looks confusing, but we use the body
-       ** file name to help build the renamed composition file name.
-       */
-
-       if (drft == composition_file_name) {
-               clean_up_temporary_files();
-
-               if (strlen(composition_file_name) >=
-                               sizeof (composition_file_name) - 6)
-                       advise(NULL, "unable to remove original composition file.");
-
-               else {
-                       if ((p = strrchr(composition_file_name, '/')) == NULL)
-                               p = composition_file_name;
-                       else
-                               p++;
-
-                       strcpy(body_file_name, p);
-                       *p++ = ',';
-                       strcpy(p, body_file_name);
-                       strcat(p, ".orig");
-
-                       unlink(composition_file_name);
-               }
-       }
-
-       return status;
-}
-
-static int
-attach(char *draft_file_name)
-{
-       char buf[MAXPATHLEN + 6];  /* miscellaneous buffer */
-       int c;  /* current character for body copy */
-       int has_attachment;  /* draft has at least one attachment */
-       int has_body;  /* draft has a message body */
-       int non_ascii; /* msg body contains non-ASCII chars */
-       int length;  /* length of attachment header field name */
-       char *p;  /* miscellaneous string pointer */
-
-       /* Open up the draft file. */
-       if ((draft_file = fopen(draft_file_name, "r")) == (FILE *)0)
-               adios(NULL, "can't open draft file `%s'.",
-                               draft_file_name);
-
-       /*
-       **  Allocate a buffer to hold the header components as they're read in.
-       **  This buffer might need to be quite large, so we grow it as needed.
-       */
-       field = (char *)mh_xmalloc(field_size = 256);
-
-       /*
-       ** Scan the draft file for an attachment header field name.
-       ** The existence of one indicates that the
-       ** draft has attachments.  Bail out if there are no attachments
-       ** because we're done.  Read to the end of the headers even if
-       ** we have no attachments.
-       */
-       length = strlen(attach_hdr);
-
-       has_attachment = 0;
-
-       while (get_line() != EOF && *field != '\0' && *field != '-') {
-               if (strncasecmp(field, attach_hdr, length) == 0 &&
-                               field[length] == ':') {
-                       has_attachment = 1;
-               }
-       }
-
-       /*
-       ** Look for at least one non-blank line in the body of the
-       ** message which indicates content in the body.
-       ** Check if body contains at least one non-blank (= not empty)
-       ** and if it contains any non-ASCII chars (= need MIME).
-       */
-       has_body = 0;
-       non_ascii = 0;
-
-       while (get_line() != EOF) {
-               for (p = field; *p != '\0'; p++) {
-                       if (*p != ' ' && *p != '\t') {
-                               has_body = 1;
-                       }
-                       if (*p > 127 || *p < 0) {
-                               non_ascii = 1;
-                       }
-               }
-               if (has_body && non_ascii)
-                       break;
-       }
-
-       /*
-       ** Bail out if there are no attachments and only ASCII text.
-       ** This means we don't need to convert it to MIME.
-       */
-       if (!has_attachment && non_ascii==0) {
-               return DONE;
-       }
-
-       /*
-       ** Else: mimify
-       */
-
-       /* Make names for the temporary files.  */
-       strncpy(body_file_name,
-                       m_mktemp(toabsdir(invo_name), NULL, NULL),
-                       sizeof (body_file_name));
-       strncpy(composition_file_name,
-                       m_mktemp(toabsdir(invo_name), NULL, NULL),
-                       sizeof (composition_file_name));
-
-       if (has_body)
-               body_file = fopen(body_file_name, "w");
-
-       composition_file = fopen(composition_file_name, "w");
-
-       if ((has_body && !body_file) || !composition_file) {
-               clean_up_temporary_files();
-               adios(NULL, "unable to open all of the temporary files.");
-       }
-
-       /*
-       ** Start at the beginning of the draft file.  Copy all
-       ** non-attachment header fields to the temporary composition file.
-       ** Then add the dashed line separator.
-       */
-       rewind(draft_file);
-       while (get_line() != EOF && *field && *field != '-') {
-               if (strncasecmp(field, attach_hdr, length) != 0 ||
-                               field[length] != ':') {
-                       fprintf(composition_file, "%s\n", field);
-               }
-       }
-       fputs("--------\n", composition_file);
-
-       if (has_body) {
-               /* Copy the message body to the temporary file. */
-               while ((c = getc(draft_file)) != EOF) {
-                       putc(c, body_file);
-               }
-               fclose(body_file);
-
-               /* Add a mhbuild MIME composition file line for the body */
-               /* charset will be discovered/guessed by buildmimeproc */
-               fprintf(composition_file, "#text/plain %s\n", body_file_name);
-       }
-
-       /*
-       ** Now, go back to the beginning of the draft file and look for
-       ** header fields that specify attachments.  Add a mhbuild MIME
-       ** composition file for each.
-       */
-       rewind(draft_file);
-       while (get_line() != EOF && *field && *field != '-') {
-               if (strncasecmp(field, attach_hdr, length) == 0 &&
-                               field[length] == ':') {
-                       for (p = field+length+1; *p==' ' || *p=='\t'; p++) {
-                               continue;
-                       }
-                       if (*p == '+') {
-                               /* forwarded message */
-                               fprintf(composition_file, "#forw [forwarded message(s)] %s\n", p);
-                       } else {
-                               make_mime_composition_file_entry(p);
-                       }
-               }
-       }
-
-       fclose(composition_file);
-
-       /*
-       ** We're ready to roll!  Run mhbuild on the composition file.
-       ** Note that mhbuild is in the context as buildmimeproc.
-       */
-       sprintf(buf, "%s %s", buildmimeproc, composition_file_name);
-
-       if (system(buf) != 0) {
-               clean_up_temporary_files();
-               return (NOTOK);
-       }
-
-       return (OK);
-}
-
-static void
-clean_up_temporary_files(void)
-{
-       unlink(body_file_name);
-       unlink(composition_file_name);
-
-       return;
-}
-
-static int
-get_line(void)
-{
-       int c;  /* current character */
-       int n;  /* number of bytes in buffer */
-       char *p;  /* buffer pointer */
-
-       /*
-       ** Get a line from the input file, growing the field buffer as
-       ** needed.  We do this so that we can fit an entire line in the
-       ** buffer making it easy to do a string comparison on both the
-       ** field name and the field body which might be a long path name.
-       */
-
-       for (n = 0, p = field; (c = getc(draft_file)) != EOF; *p++ = c) {
-               if (c == '\n' && (c = getc(draft_file)) != ' ' && c != '\t') {
-                       ungetc(c, draft_file);
-                       c = '\n';
-                       break;
-               }
-
-               if (++n >= field_size - 1) {
-                       field = (char *)mh_xrealloc((void *)field, field_size += 256);
-
-                       p = field + n - 1;
-               }
-       }
-
-       /* NUL-terminate the field. */
-       *p = '\0';
-
-       return (c);
-}
-
-static void
-make_mime_composition_file_entry(char *file_name)
-{
-       FILE *fp;
-       struct node *np;
-       char *cp;
-       char content_type[BUFSIZ];
-       char cmdbuf[BUFSIZ];
-       char *cmd = mimetypequeryproc;
-
-       for (np = m_defs; np; np = np->n_next) {
-               if (strcasecmp(np->n_name, mimetypequery)==0) {
-                       cmd = np->n_field;
-                       break;
-               }
-       }
-       snprintf(cmdbuf, sizeof cmdbuf, "%s %s", cmd, file_name);
-
-       if (!(fp = popen(cmdbuf, "r"))) {
-               clean_up_temporary_files();
-               adios(NULL, "unable to determine content type with `%s'",
-                               cmdbuf);
-       }
-       if (fgets(content_type, sizeof content_type, fp) &&
-                       (cp = strrchr(content_type, '\n'))) {
-               *cp = '\0';
-       } else {
-               strcpy(content_type, "application/octet-stream");
-               admonish(NULL, "problems with `%s', using fall back type `%s'",
-                               cmdbuf, content_type);
-       }
-       pclose(fp);
-
-       /* TODO: don't use access(2) because it checks for ruid, not euid */
-       if (access(file_name, R_OK) != 0) {
-               clean_up_temporary_files();
-               adios(NULL, "unable to access file `%s'", file_name);
-       }
-
-       fprintf(composition_file, "#%s; name=\"%s\" <>{attachment}",
-               content_type,
-               (!(cp = strrchr(file_name, '/'))) ? file_name : cp + 1);
-
-       fprintf(composition_file, " %s\n", file_name);
-
-       return;
-}
-
-/*
-** Annotate original message, and
-** call `postproc' to send message.
-*/
-static int
-sendaux(char **vec, int vecp, char *drft, struct stat *st)
-{
-       pid_t child_id;
-       int i, status, fd, fd2;
-       char backup[BUFSIZ];
-
-       fd = pushsw ? tmp_fd() : NOTOK;
-       fd2 = NOTOK;
-
-       vec[vecp++] = drft;
-       if (annotext && (fd2 = tmp_fd()) == NOTOK) {
-               admonish(NULL, "unable to create file for annotation list");
-       }
-       if (distfile && distout(drft, distfile, backup) == NOTOK)
-               done(1);
-       vec[vecp] = NULL;
-
-       for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
-               sleep(5);
-
-       switch (child_id) {
-       case -1:
-               /* oops -- fork error */
-               adios("fork", "unable to");
-               break;  /* NOT REACHED */
-
-       case 0:
-               /*
-               ** child process -- send it
-               **
-               ** If fd is ok, then we are pushing and fd points to temp
-               ** file, so capture anything on stdout and stderr there.
-               */
-               if (fd != NOTOK) {
-                       dup2(fd, fileno(stdout));
-                       dup2(fd, fileno(stderr));
-                       close(fd);
-               }
-               execvp(postproc, vec);
-               fprintf(stderr, "unable to exec ");
-               perror(postproc);
-               _exit(-1);
-               break;  /* NOT REACHED */
-
-       default:
-               /*
-               ** parent process -- wait for it
-               */
-               if ((status = pidwait(child_id, NOTOK)) == OK) {
-                       if (annotext && fd2 != NOTOK)
-                               anno(fd2, st);
-               } else {
-                       /*
-                       ** If postproc failed, and we have good fd (which
-                       ** means we pushed), then mail error message
-                       ** (and possibly the draft) back to the user.
-                       */
-                       if (fd != NOTOK) {
-                               alert(drft, fd);
-                               close(fd);
-                       } else {
-                               advise(NULL, "message not delivered to anyone");
-                       }
-                       if (annotext && fd2 != NOTOK)
-                               close(fd2);
-                       if (distfile) {
-                               unlink(drft);
-                               if (rename(backup, drft) == NOTOK)
-                                       advise(drft, "unable to rename %s to",
-                                                       backup);
-                       }
-               }
-               break;
-       }
-
-       return status;
-}
-
-
-/*
-** Mail error notification (and possibly a copy of the
-** message) back to the user, using the mailproc
-*/
-static void
-alert(char *file, int out)
-{
-       pid_t child_id;
-       int i, in;
-       char buf[BUFSIZ];
-
-       for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
-               sleep(5);
-
-       switch (child_id) {
-       case NOTOK:
-               /* oops -- fork error */
-               advise("fork", "unable to");
-
-       case OK:
-               /* child process -- send it */
-               SIGNAL(SIGHUP, SIG_IGN);
-               SIGNAL(SIGINT, SIG_IGN);
-               SIGNAL(SIGQUIT, SIG_IGN);
-               SIGNAL(SIGTERM, SIG_IGN);
-               if (forwsw) {
-                       if ((in = open(file, O_RDONLY)) == NOTOK) {
-                               admonish(file, "unable to re-open");
-                       } else {
-                               lseek(out, (off_t) 0, SEEK_END);
-                               strncpy(buf, "\nMessage not delivered to anyone.\n", sizeof(buf));
-                               write(out, buf, strlen(buf));
-                               strncpy(buf, "\n------- Unsent Draft\n\n", sizeof(buf));
-                               write(out, buf, strlen(buf));
-                               cpydgst(in, out, file, "temporary file");
-                               close(in);
-                               strncpy(buf, "\n------- End of Unsent Draft\n", sizeof(buf));
-                               write(out, buf, strlen(buf));
-                               if (rename(file, strncpy(buf, m_backup(file), sizeof(buf))) == NOTOK)
-                                       admonish(buf, "unable to rename %s to", file);
-                       }
-               }
-               lseek(out, (off_t) 0, SEEK_SET);
-               dup2(out, fileno(stdin));
-               close(out);
-               /* create subject for error notification */
-               snprintf(buf, sizeof(buf), "send failed on %s",
-                               forwsw ? "enclosed draft" : file);
-
-               execlp(mailproc, mhbasename(mailproc), getusername(),
-                               "-subject", buf, NULL);
-               fprintf(stderr, "unable to exec ");
-               perror(mailproc);
-               _exit(-1);
-
-       default:  /* no waiting... */
-               break;
-       }
-}
-
-
-static int
-tmp_fd(void)
-{
-       int fd;
-       char *tfile = NULL;
-
-       tfile = m_mktemp2(NULL, invo_name, &fd, NULL);
-       if (tfile == NULL) return NOTOK;
-       fchmod(fd, 0600);
-
-       if (debugsw)
-               advise(NULL, "temporary file %s selected", tfile);
-       else
-               if (unlink(tfile) == NOTOK)
-                       advise(tfile, "unable to remove");
-
-       return fd;
-}
-
-
-static void
-anno(int fd, struct stat *st)
-{
-       pid_t child_id;
-       sigset_t set, oset;
-       static char *cwd = NULL;
-       struct stat st2;
-
-       if (altmsg && (stat(altmsg, &st2) == NOTOK ||
-                       st->st_mtime != st2.st_mtime ||
-                       st->st_dev != st2.st_dev ||
-                       st->st_ino != st2.st_ino)) {
-               if (debugsw)
-                       admonish(NULL, "$mhaltmsg mismatch");
-               return;
-       }
-
-       child_id = debugsw ? NOTOK : fork();
-       switch (child_id) {
-       case NOTOK:  /* oops */
-               if (!debugsw)
-                       advise(NULL, "unable to fork, so doing annotations by hand...");
-               if (cwd == NULL)
-                       cwd = getcpy(pwd());
-               /* fall */
-
-       case OK:
-               /* block a few signals */
-               sigemptyset(&set);
-               sigaddset(&set, SIGHUP);
-               sigaddset(&set, SIGINT);
-               sigaddset(&set, SIGQUIT);
-               sigaddset(&set, SIGTERM);
-               SIGPROCMASK(SIG_BLOCK, &set, &oset);
-
-               annoaux(fd);
-               if (child_id == OK)
-                       _exit(0);
-
-               /* reset the signal mask */
-               SIGPROCMASK(SIG_SETMASK, &oset, &set);
-
-               chdir(cwd);
-               break;
-
-       default:  /* no waiting... */
-               close(fd);
-               break;
-       }
-}
-
-
-static void
-annoaux(int fd)
-{
-       int fd2, fd3, msgnum;
-       char *cp, *folder, *maildir;
-       char buffer[BUFSIZ], **ap;
-       FILE *fp;
-       struct msgs *mp;
-
-       if ((folder = getenv("mhfolder")) == NULL || *folder == 0) {
-               if (debugsw)
-                       admonish(NULL, "$mhfolder not set");
-               return;
-       }
-       maildir = toabsdir(folder);
-       if (chdir(maildir) == NOTOK) {
-               if (debugsw)
-                       admonish(maildir, "unable to change directory to");
-               return;
-       }
-       if (!(mp = folder_read(folder))) {
-               if (debugsw)
-                       admonish(NULL, "unable to read folder %s", folder);
-               return;
-       }
-
-       /* check for empty folder */
-       if (mp->nummsg == 0) {
-               if (debugsw)
-                       admonish(NULL, "no messages in %s", folder);
-               goto oops;
-       }
-
-       if ((cp = getenv("mhmessages")) == NULL || *cp == 0) {
-               if (debugsw)
-                       admonish(NULL, "$mhmessages not set");
-               goto oops;
-       }
-       if (!debugsw  /* MOBY HACK... */
-                       && pushsw
-                       && (fd3 = open("/dev/null", O_RDWR)) != NOTOK
-                       && (fd2 = dup(fileno(stderr))) != NOTOK) {
-               dup2(fd3, fileno(stderr));
-               close(fd3);
-       } else
-               fd2 = NOTOK;
-       for (ap = brkstring(cp = getcpy(cp), " ", NULL); *ap; ap++)
-               m_convert(mp, *ap);
-       free(cp);
-       if (fd2 != NOTOK)
-               dup2(fd2, fileno(stderr));
-       if (mp->numsel == 0) {
-               if (debugsw)
-                       admonish(NULL, "no messages to annotate");
-               goto oops;
-       }
-
-       lseek(fd, (off_t) 0, SEEK_SET);
-       if ((fp = fdopen(fd, "r")) == NULL) {
-               if (debugsw)
-                       admonish(NULL, "unable to fdopen annotation list");
-               goto oops;
-       }
-       cp = NULL;
-       while (fgets(buffer, sizeof(buffer), fp) != NULL)
-               cp = add(buffer, cp);
-       fclose(fp);
-
-       if (debugsw)
-               advise(NULL, "annotate%s with %s: \"%s\"",
-                               inplace ? " inplace" : "", annotext, cp);
-       for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
-               if (is_selected(mp, msgnum)) {
-                       if (debugsw)
-                               advise(NULL, "annotate message %d", msgnum);
-                       annotate(m_name(msgnum), annotext, cp, inplace,
-                                       1, -2, 0);
-               }
-       }
-
-       free(cp);
-
-oops:
-       folder_free(mp);  /* free folder/message structure */
-}
-
-
-static void
-armed_done(int status)
-{
-       longjmp(env, status ? status : NOTOK);
-
-       exit(status);
-}