-static int get_line(void);
-static int make_mime_composition_file_entry(char *, int, char *);
-
-static int field_size; /* size of header field buffer */
-static char *field; /* header field buffer */
-static FILE *draft_file; /* draft file pointer */
-static FILE *composition_file; /* composition file pointer */
-
-int
-attach(char *attachment_header_field_name, char *draft_file_name,
- char *body_file_name, size_t body_file_name_len,
- char *composition_file_name, size_t composition_file_name_len,
- int attachformat)
-{
- char buf[PATH_MAX + 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 length; /* length of attachment header field name */
- char *p; /* miscellaneous string pointer */
- FILE *fp; /* pointer for mhn.defaults */
- FILE *body_file = NULL; /* body file pointer */
-
- /*
- * Open up the draft file.
- */
-
- if ((draft_file = fopen(draft_file_name, "r")) == (FILE *)0)
- adios((char *)0, "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 a header field name, with a non-empty
- * body, that matches the -attach argument. 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(attachment_header_field_name);
-
- has_attachment = 0;
-
- while (get_line() != EOF && *field != '\0' && *field != '-') {
- if (strncasecmp(field, attachment_header_field_name, length) == 0 &&
- field[length] == ':') {
- for (p = field + length + 1; *p == ' ' || *p == '\t'; p++)
- ;
- if (strlen (p) > 0) {
- has_attachment = 1;
- }
- }
- }
-
- if (has_attachment == 0)
- return (DONE);
-
- /*
- * We have at least one attachment. Look for at least one non-blank line
- * in the body of the message which indicates content in the body.
- */
-
- has_body = 0;
-
- while (get_line() != EOF) {
- for (p = field; *p != '\0'; p++) {
- if (*p != ' ' && *p != '\t') {
- has_body = 1;
- break;
- }
- }
-
- if (has_body)
- break;
- }
-
- /*
- * Make names for the temporary files.
- */
-
- (void)strncpy(body_file_name,
- m_mktemp(m_maildir(invo_name), NULL, NULL),
- body_file_name_len);
- (void)strncpy(composition_file_name,
- m_mktemp(m_maildir(invo_name), NULL, NULL),
- composition_file_name_len);
-
- if (has_body)
- body_file = fopen(body_file_name, "w");
-
- composition_file = fopen(composition_file_name, "w");
-
- if ((has_body && body_file == (FILE *)0) || composition_file == (FILE *)0) {
- clean_up_temporary_files(body_file_name, composition_file_name);
- adios((char *)0, "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 != '\0' && *field != '-')
- if (strncasecmp(field, attachment_header_field_name, length) != 0 ||
- field[length] != ':')
- (void)fprintf(composition_file, "%s\n", field);
-
- (void)fputs("--------\n", composition_file);
-
- /*
- * Copy the message body to a temporary file.
- */
-
- if (has_body) {
- while ((c = getc(draft_file)) != EOF)
- putc(c, body_file);
-
- (void)fclose(body_file);
- }
-
- /*
- * Add a mhbuild MIME composition file line for the body if there was one.
- * Set the default content type to text/plain so that mhbuild takes care
- * of any necessary encoding.
- */
-
- if (has_body)
- if (make_mime_composition_file_entry(body_file_name, attachformat,
- "text/plain")) {
- clean_up_temporary_files(body_file_name, composition_file_name);
- adios (NULL, "exiting");
- }
-
- /*
- * 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.
- */
-
- if ((fp = fopen (p = etcpath ("mhn.defaults"), "r"))) {
- readconfig ((struct node **) NULL, fp, p, 0);
- fclose(fp);
- }
-
- rewind(draft_file);
-
- while (get_line() != EOF && *field != '\0' && *field != '-') {
- if (strncasecmp(field, attachment_header_field_name, length) == 0 &&
- field[length] == ':') {
- for (p = field + length + 1; *p == ' ' || *p == '\t'; p++)
- ;
-
- /* Skip empty attachment_header_field_name lines. */
- if (strlen (p) > 0) {
- struct stat st;
- if (stat (p, &st) == OK) {
- if (S_ISREG (st.st_mode)) {
- /* Don't set the default content type so take
- make_mime_composition_file_entry() will try
- to infer it from the file type. */
- if (make_mime_composition_file_entry(p, attachformat, 0)) {
- clean_up_temporary_files(body_file_name,
- composition_file_name);
- adios (NULL, "exiting");
- }
- } else {
- adios (NULL, "unable to attach %s, not a plain file",
- p);
- }
- } else {
- adios (NULL, "unable to access file \"%s\"", p);
- }
- }
- }
- }
-
- (void)fclose(composition_file);
-
- /*
- * We're ready to roll! Run mhbuild on the composition file.
- * Note that mhbuild is in the context as buildmimeproc.
- */
-
- (void)sprintf(buf, "%s %s", buildmimeproc, composition_file_name);
-
- if (system(buf) != 0) {
- clean_up_temporary_files(body_file_name, composition_file_name);
- return NOTOK;
- }
-
- return OK;
-}
-
-void
-clean_up_temporary_files(const char *body_file_name,
- const char *composition_file_name)
-{
- (void)unlink(body_file_name);
- (void)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') {
- (void)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..
- */
projects / nmh / blobdiff