reformime: do not require \r\n

function                                             old     new   delta
parse                                                958    1063    +105
packed_usage                                       28691   28712     +21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

5 files changed, 329 insertions, 296 deletions

diff --git a/mailutils/Kbuild.src b/mailutils/Kbuild.src
index 20220da..6b4fb74 100644
--- a/mailutils/Kbuild.src
+++ b/mailutils/Kbuild.src
@@ -7,7 +7,3 @@
 lib-y:=
 
 INSERT
-lib-$(CONFIG_MAKEMIME)     += mime.o mail.o
-lib-$(CONFIG_POPMAILDIR)   += popmaildir.o mail.o
-lib-$(CONFIG_REFORMIME)    += mime.o mail.o
-lib-$(CONFIG_SENDMAIL)     += sendmail.o mail.o
diff --git a/mailutils/mime.c b/mailutils/makemime.c
index 0aff8b1..628619b 100644
--- a/mailutils/mime.c
+++ b/mailutils/makemime.c
@@ -8,35 +8,17 @@
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 
-//usage:#define makemime_trivial_usage
-//usage:       "[OPTIONS] [FILE]..."
-//usage:#define makemime_full_usage "\n\n"
-//usage:       "Create multipart MIME-encoded message from FILEs\n"
-/* //usage:    "Transfer encoding is base64, disposition is inline (not attachment)\n" */
-//usage:     "\nOptions:"
-//usage:     "\n	-o FILE	Output. Default: stdout"
-//usage:     "\n	-a HDR	Add header. Examples:"
-//usage:     "\n		\"From: user@host.org\", \"Date: `date -R`\""
-//usage:     "\n	-c CT	Content type. Default: text/plain"
-//usage:     "\n	-C CS   Charset. Default: " CONFIG_FEATURE_MIME_CHARSET
-/* //usage:  "\n	-e ENC	Transfer encoding. Ignored. base64 is assumed" */
-//usage:     "\n"
-//usage:     "\nOther options are silently ignored"
-
-//usage:#define reformime_trivial_usage
-//usage:       "[OPTIONS] [FILE]..."
-//usage:#define reformime_full_usage "\n\n"
-//usage:       "Parse MIME-encoded message\n"
-//usage:     "\nOptions:"
-//usage:     "\n	-x PREFIX	Extract content of MIME sections to files"
-//usage:     "\n	-X PROG ARGS	Filter content of MIME sections through PROG"
-//usage:     "\n			Must be the last option"
-//usage:     "\n"
-//usage:     "\nOther options are silently ignored"
+//kbuild:lib-$(CONFIG_MAKEMIME) += makemime.o mail.o
 
 #include "libbb.h"
 #include "mail.h"
 
+#if 0
+# define dbg_error_msg(...) bb_error_msg(__VA_ARGS__)
+#else
+# define dbg_error_msg(...) ((void)0)
+#endif
+
 /*
   makemime -c type [-o file] [-e encoding] [-C charset] [-N name] \
                    [-a "Header: Contents"] file
@@ -50,7 +32,6 @@
           \( opts \)  - read from child process, that generates [ opts ]
 
 Options:
-
   -c type         - create a new MIME section from "file" with this
                     Content-Type: (default is application/octet-stream).
   -C charset      - MIME charset of a new text/plain section.
@@ -70,6 +51,28 @@ Options:
           value on each line.
   {which version of makemime is this? What do we support?}
 */
+/* man makemime:
+
+ * -c TYPE: create a (non-multipart) MIME section with Content-Type: TYPE
+ * makemime -c TYPE [-e ENCODING] [-o OUTFILE] [-C CHARSET] [-N NAME] [-a HEADER...] FILE
+ * The -C option sets the MIME charset attribute for text/plain content.
+ * The -N option sets the name attribute for Content-Type:
+ * Encoding must be one of the following: 7bit, 8bit, quoted-printable, or base64.
+
+ * -m multipart/TYPE: create a multipart MIME collection with Content-Type: multipart/TYPE
+ * makemime -m multipart/TYPE [-e ENCODING] [-o OUTFILE] [-a HEADER...] FILE
+ * Type must be either "multipart/mixed", "multipart/alternative", or some other MIME multipart content type.
+ * Additionally, encoding can only be "7bit" or "8bit", and will default to "8bit" if not specified.
+ * Finally, filename must be a MIME-formatted section, NOT a regular file.
+ * The -m option creates an initial multipart MIME collection, that contains only one MIME section, taken from filename.
+ * The collection is written to standard output, or the pipe or to outputfile.
+
+ * -j FILE1: add a section to a multipart MIME collection
+ * makemime -j FILE1 [-o OUTFILE] FILE2
+ * FILE1 must be a MIME collection that was previously created by the -m option.
+ * FILE2 must be a MIME section that was previously created by the -c option.
+ * The -j options adds the MIME section in FILE2 to the MIME collection in FILE1.
+ */
 
 
 /* In busybox 1.15.0.svn, makemime generates output like this
@@ -92,10 +95,8 @@ Content-Transfer-Encoding: base64
 ...file B contents...
 --24269534-2145583448-1655890676--
 
-*/
-
-
-/* For reference: here is an example email to LKML which has
+ *
+ * For reference: here is an example email to LKML which has
  * 1st unnamed part (so it serves as an email body)
  * and one attached file:
 ...other headers...
@@ -126,28 +127,21 @@ Content-Transfer-Encoding: 7bit
 ...random junk added by mailing list robots and such...
 */
 
-/* man makemime:
-
- * -c TYPE: create a (non-multipart) MIME section with Content-Type: TYPE
- * makemime -c TYPE [-e ENCODING] [-o OUTFILE] [-C CHARSET] [-N NAME] [-a HEADER...] FILE
- * The -C option sets the MIME charset attribute for text/plain content.
- * The -N option sets the name attribute for Content-Type:
- * Encoding must be one of the following: 7bit, 8bit, quoted-printable, or base64.
-
- * -m multipart/TYPE: create a multipart MIME collection with Content-Type: multipart/TYPE
- * makemime -m multipart/TYPE [-e ENCODING] [-o OUTFILE] [-a HEADER...] FILE
- * Type must be either "multipart/mixed", "multipart/alternative", or some other MIME multipart content type.
- * Additionally, encoding can only be "7bit" or "8bit", and will default to "8bit" if not specified.
- * Finally, filename must be a MIME-formatted section, NOT a regular file.
- * The -m option creates an initial multipart MIME collection, that contains only one MIME section, taken from filename.
- * The collection is written to standard output, or the pipe or to outputfile.
+//usage:#define makemime_trivial_usage
+//usage:       "[OPTIONS] [FILE]..."
+//usage:#define makemime_full_usage "\n\n"
+//usage:       "Create multipart MIME-encoded message from FILEs\n"
+/* //usage:    "Transfer encoding is base64, disposition is inline (not attachment)\n" */
+//usage:     "\nOptions:"
+//usage:     "\n	-o FILE	Output. Default: stdout"
+//usage:     "\n	-a HDR	Add header. Examples:"
+//usage:     "\n		\"From: user@host.org\", \"Date: `date -R`\""
+//usage:     "\n	-c CT	Content type. Default: text/plain"
+//usage:     "\n	-C CS   Charset. Default: " CONFIG_FEATURE_MIME_CHARSET
+/* //usage:  "\n	-e ENC	Transfer encoding. Ignored. base64 is assumed" */
+//usage:     "\n"
+//usage:     "\nOther options are silently ignored"
 
- * -j FILE1: add a section to a multipart MIME collection
- * makemime -j FILE1 [-o OUTFILE] FILE2
- * FILE1 must be a MIME collection that was previously created by the -m option.
- * FILE2 must be a MIME section that was previously created by the -c option.
- * The -j options adds the MIME section in FILE2 to the MIME collection in FILE1.
- */
 int makemime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int makemime_main(int argc UNUSED_PARAM, char **argv)
 {
@@ -222,244 +216,3 @@ int makemime_main(int argc UNUSED_PARAM, char **argv)
 	return EXIT_SUCCESS;
 #undef boundary
 }
-
-static const char *find_token(const char *const string_array[], const char *key, const char *defvalue)
-{
-	const char *r = NULL;
-	int i;
-	for (i = 0; string_array[i] != NULL; i++) {
-		if (strcasecmp(string_array[i], key) == 0) {
-			r = (char *)string_array[i+1];
-			break;
-		}
-	}
-	return (r) ? r : defvalue;
-}
-
-static const char *xfind_token(const char *const string_array[], const char *key)
-{
-	const char *r = find_token(string_array, key, NULL);
-	if (r)
-		return r;
-	bb_error_msg_and_die("header: %s", key);
-}
-
-enum {
-	OPT_x = 1 << 0,
-	OPT_X = 1 << 1,
-#if ENABLE_FEATURE_REFORMIME_COMPAT
-	OPT_d = 1 << 2,
-	OPT_e = 1 << 3,
-	OPT_i = 1 << 4,
-	OPT_s = 1 << 5,
-	OPT_r = 1 << 6,
-	OPT_c = 1 << 7,
-	OPT_m = 1 << 8,
-	OPT_h = 1 << 9,
-	OPT_o = 1 << 10,
-	OPT_O = 1 << 11,
-#endif
-};
-
-static int parse(const char *boundary, char **argv)
-{
-	char *line, *s, *p;
-	const char *type;
-	int boundary_len = strlen(boundary);
-	const char *delims = " ;\"\t\r\n";
-	const char *uniq;
-	int ntokens;
-	const char *tokens[32]; // 32 is enough
-
-	// prepare unique string pattern
-	uniq = xasprintf("%%llu.%u.%s", (unsigned)getpid(), safe_gethostname());
-
-//bb_info_msg("PARSE[%s]", uniq);
-
-	while ((line = xmalloc_fgets_str(stdin, "\r\n\r\n")) != NULL) {
-
-		// seek to start of MIME section
-		// N.B. to avoid false positives let us seek to the _last_ occurance
-		p = NULL;
-		s = line;
-		while ((s = strcasestr(s, "Content-Type:")) != NULL)
-			p = s++;
-		if (!p)
-			goto next;
-//bb_info_msg("L[%s]", p);
-
-		// split to tokens
-		// TODO: strip of comments which are of form: (comment-text)
-		ntokens = 0;
-		tokens[ntokens] = NULL;
-		for (s = strtok(p, delims); s; s = strtok(NULL, delims)) {
-			tokens[ntokens] = s;
-			if (ntokens < ARRAY_SIZE(tokens) - 1)
-				ntokens++;
-//bb_info_msg("L[%d][%s]", ntokens, s);
-		}
-		tokens[ntokens] = NULL;
-//bb_info_msg("N[%d]", ntokens);
-
-		// analyse tokens
-		type = find_token(tokens, "Content-Type:", "text/plain");
-//bb_info_msg("T[%s]", type);
-		if (0 == strncasecmp(type, "multipart/", 10)) {
-			if (0 == strcasecmp(type+10, "mixed")) {
-				parse(xfind_token(tokens, "boundary="), argv);
-			} else
-				bb_error_msg_and_die("no support of content type '%s'", type);
-		} else {
-			pid_t pid = pid;
-			int rc;
-			FILE *fp;
-			// fetch charset
-			const char *charset = find_token(tokens, "charset=", CONFIG_FEATURE_MIME_CHARSET);
-			// fetch encoding
-			const char *encoding = find_token(tokens, "Content-Transfer-Encoding:", "7bit");
-			// compose target filename
-			char *filename = (char *)find_token(tokens, "filename=", NULL);
-			if (!filename)
-				filename = xasprintf(uniq, monotonic_us());
-			else
-				filename = bb_get_last_path_component_strip(xstrdup(filename));
-
-			// start external helper, if any
-			if (opts & OPT_X) {
-				int fd[2];
-				xpipe(fd);
-				pid = vfork();
-				if (0 == pid) {
-					// child reads from fd[0]
-					close(fd[1]);
-					xmove_fd(fd[0], STDIN_FILENO);
-					xsetenv("CONTENT_TYPE", type);
-					xsetenv("CHARSET", charset);
-					xsetenv("ENCODING", encoding);
-					xsetenv("FILENAME", filename);
-					BB_EXECVP_or_die(argv);
-				}
-				// parent dumps to fd[1]
-				close(fd[0]);
-				fp = xfdopen_for_write(fd[1]);
-				signal(SIGPIPE, SIG_IGN); // ignore EPIPE
-			// or create a file for dump
-			} else {
-				char *fname = xasprintf("%s%s", *argv, filename);
-				fp = xfopen_for_write(fname);
-				free(fname);
-			}
-
-			// housekeeping
-			free(filename);
-
-			// dump to fp
-			if (0 == strcasecmp(encoding, "base64")) {
-				read_base64(stdin, fp, '-');
-			} else if (0 != strcasecmp(encoding, "7bit")
-				&& 0 != strcasecmp(encoding, "8bit")
-			) {
-				// quoted-printable, binary, user-defined are unsupported so far
-				bb_error_msg_and_die("no support of encoding '%s'", encoding);
-			} else {
-				// N.B. we have written redundant \n. so truncate the file
-				// The following weird 2-tacts reading technique is due to
-				// we have to not write extra \n at the end of the file
-				// In case of -x option we could truncate the resulting file as
-				// fseek(fp, -1, SEEK_END);
-				// if (ftruncate(fileno(fp), ftell(fp)))
-				//	bb_perror_msg("ftruncate");
-				// But in case of -X we have to be much more careful. There is
-				// no means to truncate what we already have sent to the helper.
-				p = xmalloc_fgets_str(stdin, "\r\n");
-				while (p) {
-					s = xmalloc_fgets_str(stdin, "\r\n");
-					if (s == NULL)
-						break;
-					if ('-' == s[0]
-					 && '-' == s[1]
-					 && 0 == strncmp(s+2, boundary, boundary_len)
-					) {
-						break;
-					}
-					fputs(p, fp);
-					p = s;
-				}
-
-/*
-				while ((s = xmalloc_fgetline_str(stdin, "\r\n")) != NULL) {
-					if ('-' == s[0] && '-' == s[1]
-						&& 0 == strncmp(s+2, boundary, boundary_len))
-						break;
-					fprintf(fp, "%s\n", s);
-				}
-				// N.B. we have written redundant \n. so truncate the file
-				fseek(fp, -1, SEEK_END);
-				if (ftruncate(fileno(fp), ftell(fp)))
-					bb_perror_msg("ftruncate");
-*/
-			}
-			fclose(fp);
-
-			// finalize helper
-			if (opts & OPT_X) {
-				signal(SIGPIPE, SIG_DFL);
-				// exit if helper exited >0
-				rc = (wait4pid(pid) & 0xff);
-				if (rc)
-					return rc+20;
-			}
-
-			// check multipart finalized
-			if (s && '-' == s[2+boundary_len] && '-' == s[2+boundary_len+1]) {
-				free(line);
-				break;
-			}
-		}
- next:
-		free(line);
-	}
-
-//bb_info_msg("ENDPARSE[%s]", boundary);
-
-	return EXIT_SUCCESS;
-}
-
-/*
-Usage: reformime [options]
-    -d - parse a delivery status notification.
-    -e - extract contents of MIME section.
-    -x - extract MIME section to a file.
-    -X - pipe MIME section to a program.
-    -i - show MIME info.
-    -s n.n.n.n - specify MIME section.
-    -r - rewrite message, filling in missing MIME headers.
-    -r7 - also convert 8bit/raw encoding to quoted-printable, if possible.
-    -r8 - also convert quoted-printable encoding to 8bit, if possible.
-    -c charset - default charset for rewriting, -o, and -O.
-    -m [file] [file]... - create a MIME message digest.
-    -h "header" - decode RFC 2047-encoded header.
-    -o "header" - encode unstructured header using RFC 2047.
-    -O "header" - encode address list header using RFC 2047.
-*/
-
-int reformime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int reformime_main(int argc UNUSED_PARAM, char **argv)
-{
-	const char *opt_prefix = "";
-
-	INIT_G();
-
-	// parse options
-	// N.B. only -x and -X are supported so far
-	opt_complementary = "x--X:X--x" IF_FEATURE_REFORMIME_COMPAT(":m::");
-	opts = getopt32(argv,
-		"x:X" IF_FEATURE_REFORMIME_COMPAT("deis:r:c:m:h:o:O:"),
-		&opt_prefix
-		IF_FEATURE_REFORMIME_COMPAT(, NULL, NULL, &G.opt_charset, NULL, NULL, NULL, NULL)
-	);
-	//argc -= optind;
-	argv += optind;
-
-	return parse("", (opts & OPT_X) ? argv : (char **)&opt_prefix);
-}
diff --git a/mailutils/popmaildir.c b/mailutils/popmaildir.c
index 6426579..c9d22aa 100644
--- a/mailutils/popmaildir.c
+++ b/mailutils/popmaildir.c
@@ -10,6 +10,8 @@
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 
+//kbuild:lib-$(CONFIG_POPMAILDIR) += popmaildir.o mail.o
+
 //usage:#define popmaildir_trivial_usage
 //usage:       "[OPTIONS] MAILDIR [CONN_HELPER ARGS]"
 //usage:#define popmaildir_full_usage "\n\n"
diff --git a/mailutils/reformime.c b/mailutils/reformime.c
new file mode 100644
index 0000000..aa5e3b1
--- /dev/null
+++ b/mailutils/reformime.c
@@ -0,0 +1,280 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * makemime: create MIME-encoded message
+ * reformime: parse MIME-encoded message
+ *
+ * Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com>
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+
+//kbuild:lib-$(CONFIG_REFORMIME) += reformime.o mail.o
+
+#include "libbb.h"
+#include "mail.h"
+
+#if 0
+# define dbg_error_msg(...) bb_error_msg(__VA_ARGS__)
+#else
+# define dbg_error_msg(...) ((void)0)
+#endif
+
+static const char *find_token(const char *const string_array[], const char *key, const char *defvalue)
+{
+	const char *r = NULL;
+	int i;
+	for (i = 0; string_array[i] != NULL; i++) {
+		if (strcasecmp(string_array[i], key) == 0) {
+			r = (char *)string_array[i+1];
+			break;
+		}
+	}
+	return (r) ? r : defvalue;
+}
+
+static const char *xfind_token(const char *const string_array[], const char *key)
+{
+	const char *r = find_token(string_array, key, NULL);
+	if (r)
+		return r;
+	bb_error_msg_and_die("not found: '%s'", key);
+}
+
+enum {
+	OPT_x = 1 << 0,
+	OPT_X = 1 << 1,
+#if ENABLE_FEATURE_REFORMIME_COMPAT
+	OPT_d = 1 << 2,
+	OPT_e = 1 << 3,
+	OPT_i = 1 << 4,
+	OPT_s = 1 << 5,
+	OPT_r = 1 << 6,
+	OPT_c = 1 << 7,
+	OPT_m = 1 << 8,
+	OPT_h = 1 << 9,
+	OPT_o = 1 << 10,
+	OPT_O = 1 << 11,
+#endif
+};
+
+static int parse(const char *boundary, char **argv)
+{
+	int boundary_len = strlen(boundary);
+	char uniq[sizeof("%%llu.%u") + sizeof(int)*3];
+
+	dbg_error_msg("BOUNDARY[%s]", boundary);
+
+	// prepare unique string pattern
+	sprintf(uniq, "%%llu.%u", (unsigned)getpid());
+	dbg_error_msg("UNIQ[%s]", uniq);
+
+	while (1) {
+		char *header;
+		const char *tokens[32]; /* 32 is enough */
+		const char *type;
+
+		/* Read the header (everything up to two \n) */
+		{
+			unsigned header_idx = 0;
+			int last_ch = 0;
+			header = NULL;
+			while (1) {
+				int ch = fgetc(stdin);
+				if (ch == '\r') /* Support both line endings */
+					continue;
+				if (ch == EOF)
+					break;
+				if (ch == '\n' && last_ch == ch)
+					break;
+				if (!(header_idx & 0xff))
+					header = xrealloc(header, header_idx + 0x101);
+				header[header_idx++] = last_ch = ch;
+			}
+			if (!header) {
+				dbg_error_msg("EOF");
+				break;
+			}
+			header[header_idx] = '\0';
+			dbg_error_msg("H:'%s'", p);
+		}
+
+		/* Split to tokens */
+		{
+			char *s, *p;
+			unsigned ntokens;
+			const char *delims = ";=\" \t\n";
+
+			/* Skip to last Content-Type: */
+			s = p = header;
+			while ((p = strchr(p, '\n')) != NULL) {
+				p++;
+				if (strncasecmp(p, "Content-Type:", sizeof("Content-Type:")-1) == 0)
+					s = p;
+			}
+			dbg_error_msg("L:'%s'", p);
+			ntokens = 0;
+			s = strtok(s, delims);
+			while (s) {
+				tokens[ntokens] = s;
+				if (ntokens < ARRAY_SIZE(tokens) - 1)
+					ntokens++;
+				dbg_error_msg("L[%d]='%s'", ntokens, s);
+				s = strtok(NULL, delims);
+			}
+			tokens[ntokens] = NULL;
+			dbg_error_msg("EMPTYLINE, ntokens:%d", ntokens);
+			if (ntokens == 0)
+				break;
+		}
+
+		/* Is it multipart? */
+		type = find_token(tokens, "Content-Type:", "text/plain");
+		dbg_error_msg("TYPE:'%s'", type);
+		if (0 == strncasecmp(type, "multipart/", 10)) {
+			/* Yes, recurse */
+			if (strcasecmp(type + 10, "mixed") != 0)
+				bb_error_msg_and_die("no support of content type '%s'", type);
+			parse(xfind_token(tokens, "boundary"), argv);
+
+		} else {
+			/* No, process one non-multipart section */
+			char *end;
+			pid_t pid = pid;
+			FILE *fp;
+
+			const char *charset = find_token(tokens, "charset", CONFIG_FEATURE_MIME_CHARSET);
+			const char *encoding = find_token(tokens, "Content-Transfer-Encoding:", "7bit");
+
+			/* Compose target filename */
+			char *filename = (char *)find_token(tokens, "filename", NULL);
+			if (!filename)
+				filename = xasprintf(uniq, monotonic_us());
+			else
+				filename = bb_get_last_path_component_strip(xstrdup(filename));
+
+			if (opts & OPT_X) {
+				int fd[2];
+
+				/* start external helper */
+				xpipe(fd);
+				pid = vfork();
+				if (0 == pid) {
+					/* child reads from fd[0] */
+					close(fd[1]);
+					xmove_fd(fd[0], STDIN_FILENO);
+					xsetenv("CONTENT_TYPE", type);
+					xsetenv("CHARSET", charset);
+					xsetenv("ENCODING", encoding);
+					xsetenv("FILENAME", filename);
+					BB_EXECVP_or_die(argv);
+				}
+				/* parent will write to fd[1] */
+				close(fd[0]);
+				fp = xfdopen_for_write(fd[1]);
+				signal(SIGPIPE, SIG_IGN);
+			} else {
+				/* write to file */
+				char *fname = xasprintf("%s%s", *argv, filename);
+				fp = xfopen_for_write(fname);
+				free(fname);
+			}
+			free(filename);
+
+			/* write to fp */
+			end = NULL;
+			if (0 == strcasecmp(encoding, "base64")) {
+				read_base64(stdin, fp, '-');
+			} else
+			if (0 != strcasecmp(encoding, "7bit")
+			 && 0 != strcasecmp(encoding, "8bit")
+			) {
+				/* quoted-printable, binary, user-defined are unsupported so far */
+				bb_error_msg_and_die("encoding '%s' not supported", encoding);
+			} else {
+				/* plain 7bit or 8bit */
+				while ((end = xmalloc_fgets(stdin)) != NULL) {
+					if ('-' == end[0]
+					 && '-' == end[1]
+					 && strncmp(end + 2, boundary, boundary_len) == 0
+					) {
+						break;
+					}
+					fputs(end, fp);
+				}
+			}
+			fclose(fp);
+
+			/* Wait for child */
+			if (opts & OPT_X) {
+				int rc;
+				signal(SIGPIPE, SIG_DFL);
+				rc = (wait4pid(pid) & 0xff);
+				if (rc != 0)
+					return rc + 20;
+			}
+
+			/* Multipart ended? */
+			if (end && '-' == end[2 + boundary_len] && '-' == end[2 + boundary_len + 1]) {
+				dbg_error_msg("FINISHED MPART:'%s'", end);
+				break;
+			}
+			dbg_error_msg("FINISHED:'%s'", end);
+			free(end);
+		} /* end of "handle one non-multipart block" */
+
+		free(header);
+	} /* while (1) */
+
+	dbg_error_msg("ENDPARSE[%s]", boundary);
+
+	return EXIT_SUCCESS;
+}
+
+//usage:#define reformime_trivial_usage
+//usage:       "[OPTIONS]"
+//usage:#define reformime_full_usage "\n\n"
+//usage:       "Parse MIME-encoded message on stdin\n"
+//usage:     "\nOptions:"
+//usage:     "\n	-x PREFIX	Extract content of MIME sections to files"
+//usage:     "\n	-X PROG ARGS	Filter content of MIME sections through PROG"
+//usage:     "\n			Must be the last option"
+//usage:     "\n"
+//usage:     "\nOther options are silently ignored"
+
+/*
+Usage: reformime [options]
+    -d - parse a delivery status notification.
+    -e - extract contents of MIME section.
+    -x - extract MIME section to a file.
+    -X - pipe MIME section to a program.
+    -i - show MIME info.
+    -s n.n.n.n - specify MIME section.
+    -r - rewrite message, filling in missing MIME headers.
+    -r7 - also convert 8bit/raw encoding to quoted-printable, if possible.
+    -r8 - also convert quoted-printable encoding to 8bit, if possible.
+    -c charset - default charset for rewriting, -o, and -O.
+    -m [file] [file]... - create a MIME message digest.
+    -h "header" - decode RFC 2047-encoded header.
+    -o "header" - encode unstructured header using RFC 2047.
+    -O "header" - encode address list header using RFC 2047.
+*/
+
+int reformime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int reformime_main(int argc UNUSED_PARAM, char **argv)
+{
+	const char *opt_prefix = "";
+
+	INIT_G();
+
+	// parse options
+	// N.B. only -x and -X are supported so far
+	opt_complementary = "x--X:X--x" IF_FEATURE_REFORMIME_COMPAT(":m::");
+	opts = getopt32(argv,
+		"x:X" IF_FEATURE_REFORMIME_COMPAT("deis:r:c:m:h:o:O:"),
+		&opt_prefix
+		IF_FEATURE_REFORMIME_COMPAT(, NULL, NULL, &G.opt_charset, NULL, NULL, NULL, NULL)
+	);
+	argv += optind;
+
+	return parse("", (opts & OPT_X) ? argv : (char **)&opt_prefix);
+}
diff --git a/mailutils/sendmail.c b/mailutils/sendmail.c
index 8096288..e0aff20 100644
--- a/mailutils/sendmail.c
+++ b/mailutils/sendmail.c
@@ -7,6 +7,8 @@
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 
+//kbuild:lib-$(CONFIG_SENDMAIL) += sendmail.o mail.o
+
 //usage:#define sendmail_trivial_usage
 //usage:       "[OPTIONS] [RECIPIENT_EMAIL]..."
 //usage:#define sendmail_full_usage "\n\n"