From 247acc1eccf6f1ca6457f912fabff18713d7a638 Mon Sep 17 00:00:00 2001
From: Christian Neukirchen <chneukirchen@gmail.com>
Date: Wed, 20 Jul 2016 13:52:54 +0200
Subject: mshow: rename from show

---
 show.c | 468 -----------------------------------------------------------------
 1 file changed, 468 deletions(-)
 delete mode 100644 show.c

(limited to 'show.c')

diff --git a/show.c b/show.c
deleted file mode 100644
index 1a48787..0000000
--- a/show.c
+++ /dev/null
@@ -1,468 +0,0 @@
-#include <sys/stat.h>
-#include <sys/types.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <iconv.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "blaze822.h"
-
-static int rflag;
-static int qflag;
-static int Hflag;
-static int Lflag;
-static int tflag;
-static int nflag;
-static char defaulthflags[] = "from:subject:to:cc:date:";
-static char *hflag = defaulthflags;
-static char *xflag;
-static char *Oflag;
-
-struct message *filters;
-
-static int mimecount;
-
-void
-printhdr(char *hdr)
-{
-	int uc = 1;
-
-	while (*hdr && *hdr != ':') {
-		putc(uc ? toupper(*hdr) : *hdr, stdout);
-		uc = (*hdr == '-');
-		hdr++;
-	}
-
-	if (*hdr) {
-		printf("%s\n", hdr);
-	}
-}
-
-void
-print_u8recode(char *body, size_t bodylen, char *srcenc)
-{
-	iconv_t ic;
-
-	ic = iconv_open("UTF-8", srcenc);
-	if (ic == (iconv_t)-1) {
-		printf("unsupported encoding: %s\n", srcenc);
-		return;
-	}
-
-	char final_char = 0;
-
-	char buf[4096];
-	while (bodylen > 0) {
-		char *bufptr = buf;
-		size_t buflen = sizeof buf;
-		size_t r = iconv(ic, &body, &bodylen, &bufptr, &buflen);
-
-		if (bufptr != buf) {
-			fwrite(buf, 1, bufptr-buf, stdout);
-			final_char = bufptr[-1];
-		}
-
-		if (r != (size_t)-1) {  // done, flush iconv
-			bufptr = buf;
-			buflen = sizeof buf;
-			r = iconv(ic, 0, 0, &bufptr, &buflen);
-			if (bufptr != buf) {
-				fwrite(buf, 1, bufptr-buf, stdout);
-				final_char = bufptr[-1];
-			}
-			if (r != (size_t)-1)
-				break;
-		}
-
-		if (r == (size_t)-1 && errno != E2BIG) {
-			perror("iconv");
-			break;
-		}
-	}
-
-	if (final_char != '\n')
-		printf("\n");
-
-	iconv_close(ic);
-}
-
-char *
-mimetype(char *ct)
-{
-	char *s;
-	for (s = ct; *s && *s != ';' && *s != ' ' && *s != '\t'; s++)
-		;
-
-	return strndup(ct, s-ct);
-}
-
-char *
-tlmimetype(char *ct)
-{
-	char *s;
-	for (s = ct; *s && *s != ';' && *s != ' ' && *s != '\t' && *s != '/'; s++)
-		;
-
-	return strndup(ct, s-ct);
-}
-
-typedef enum {
-	MIME_CONTINUE,
-	MIME_STOP,
-	MIME_PRUNE,
-} mime_action;
-
-typedef mime_action (*mime_callback)(int, char *, char *, size_t);
-
-mime_action
-render_mime(int depth, char *ct, char *body, size_t bodylen)
-{
-	char *mt = mimetype(ct);
-	char *tlmt = tlmimetype(ct);
-
-	char *filename = 0, *fn, *fne;
-	if (blaze822_mime_parameter(ct, "name", &fn, &fne))
-		filename = strndup(fn, fne-fn);
-
-	mimecount++;
-
-	int i;
-	for (i = 0; i < depth+1; i++)
-		printf("--- ");
-	printf("%d: %s size=%zd", mimecount, mt, bodylen);
-	if (filename) {
-		printf(" name=%s", filename);
-		free(filename);
-	}
-
-	char *cmd;
-	mime_action r = MIME_CONTINUE;
-
-	if (filters &&
-	    ((cmd = blaze822_chdr(filters, mt)) ||
-	    (cmd = blaze822_chdr(filters, tlmt)))) {
-		printf(" filter=\"%s\" ---\n", cmd);
-		FILE *p;
-		fflush(stdout);
-		p = popen(cmd, "w");
-		if (!p) {
-			perror("popen");
-			goto nofilter;
-		}
-		fwrite(body, 1, bodylen, p);
-		if (pclose(p) != 0) {
-			perror("pclose");
-			goto nofilter;
-		}
-		r = MIME_PRUNE;
-	} else {
-nofilter:
-		printf(" ---\n");
-
-		if (strncmp(ct, "text/", 5) == 0) {
-			char *charset = 0, *cs, *cse;
-			if (blaze822_mime_parameter(ct, "charset", &cs, &cse))
-				charset = strndup(cs, cse-cs);
-			if (!charset ||
-			    strcasecmp(charset, "utf-8") == 0 ||
-			    strcasecmp(charset, "utf8") == 0 ||
-			    strcasecmp(charset, "us-ascii") == 0)
-				fwrite(body, 1, bodylen, stdout);
-			else
-				print_u8recode(body, bodylen, charset);
-			free(charset);
-		} else if (strncmp(ct, "message/rfc822", 14) == 0) {
-			struct message *imsg = blaze822_mem(body, bodylen);
-			char *h = 0;
-			if (imsg) {
-				while ((h = blaze822_next_header(imsg, h)))
-					printf("%s\n", h);
-				printf("\n");
-			}
-		} else if (strncmp(ct, "multipart/", 10) == 0) {
-			;
-		} else {
-			printf("no filter or default handler\n");
-		}
-	}
-
-	free(mt);
-	free(tlmt);
-
-	return r;
-}
-
-mime_action
-list_mime(int depth, char *ct, char *body, size_t bodylen)
-{
-	(void) body;
-
-	char *mt = mimetype(ct);
-	char *fn, *fne;
-
-	printf("%*.s%d: %s size=%zd", depth*2, "", ++mimecount, mt, bodylen);
-	if (blaze822_mime_parameter(ct, "name", &fn, &fne)) {
-		printf(" name=");
-		fwrite(fn, 1, fne-fn, stdout);
-	}
-	printf("\n");
-
-	return MIME_CONTINUE;
-}
-
-mime_action
-walk_mime(struct message *msg, int depth, mime_callback visit)
-{
-	char *ct, *body, *bodychunk;
-	size_t bodylen;
-
-	mime_action r = MIME_CONTINUE;
-
-	if (blaze822_mime_body(msg, &ct, &body, &bodylen, &bodychunk)) {
-
-		mime_action r = visit(depth, ct, body, bodylen);
-
-		if (r == MIME_CONTINUE) {
-			if (strncmp(ct, "multipart/", 10) == 0) {
-				struct message *imsg = 0;
-				while (blaze822_multipart(msg, &imsg)) {
-					r = walk_mime(imsg, depth+1, visit);
-					if (r == MIME_STOP)
-						break;
-				}
-			} else if (strncmp(ct, "message/rfc822", 14) == 0) {
-				struct message *imsg = blaze822_mem(body, bodylen);
-				if (imsg)
-					walk_mime(imsg, depth+1, visit);
-			}
-		}
-
-		free(bodychunk);
-	}
-
-	return r;
-}
-
-void
-list(char *file)
-{
-	struct message *msg = blaze822_file(file);
-	if (!msg)
-		return;
-	mimecount = 0;
-	walk_mime(msg, 0, list_mime);
-}
-
-static int extract_argc;
-static char **extract_argv;
-static int extract_stdout;
-
-static int
-writefile(char *name, char *buf, ssize_t len)
-{
-	int fd = open(name, O_CREAT | O_EXCL | O_WRONLY, 0666);
-	if (fd == -1) {
-		perror("open");
-		return -1;
-	}
-	if (write(fd, buf, len) != len) {
-		// XXX partial write
-		perror("write");
-		return -1;
-	}
-	close(fd);
-	return 0;
-}
-
-mime_action
-extract_mime(int depth, char *ct, char *body, size_t bodylen)
-{
-	(void) body;
-	(void) depth;
-
-	char *filename = 0, *fn, *fne;
-	if (blaze822_mime_parameter(ct, "name", &fn, &fne))
-		filename = strndup(fn, fne-fn);
-
-	mimecount++;
-
-	if (extract_argc == 0) {
-		if (extract_stdout) { // output all parts
-			fwrite(body, 1, bodylen, stdout);
-		} else { // extract all named attachments
-			if (filename) {
-				printf("%s\n", filename);
-				writefile(filename, body, bodylen);
-			}
-		}
-	} else {
-		int i;
-		for (i = 0; i < extract_argc; i++) {
-			char *a = extract_argv[i];
-			char *b;
-			errno = 0;
-			long d = strtol(a, &b, 10);
-			if (errno == 0 && !*b && d == mimecount) {
-				// extract by id
-				if (extract_stdout) {
-					fwrite(body, 1, bodylen, stdout);
-				} else {
-					char buf[255];
-					if (!filename) {
-						snprintf(buf, sizeof buf,
-						    "attachment%d", mimecount);
-						filename = buf;
-					}
-					printf("%s\n", filename);
-					writefile(filename, body, bodylen);
-				}
-			} else if (filename && strcmp(a, filename) == 0) {
-				// extract by name
-				if (extract_stdout) {
-					fwrite(body, 1, bodylen, stdout);
-				} else {
-					printf("%s\n", filename);
-					writefile(filename, body, bodylen);
-				}
-			}
-		}
-	}
-
-	free(filename);
-	return MIME_CONTINUE;
-}
-
-void
-extract(char *file, int argc, char **argv, int use_stdout)
-{
-	struct message *msg = blaze822_file(file);
-	if (!msg)
-		return;
-	mimecount = 0;
-	extract_argc = argc;
-	extract_argv = argv;
-	extract_stdout = use_stdout;
-	walk_mime(msg, 0, extract_mime);
-}
-
-static char *newcur;
-
-void
-show(char *file)
-{
-	struct message *msg;
-
-	while (*file == ' ' || *file == '\t')
-		file++;
-
-	if (newcur) {
-		printf("\014\n");
-		free(newcur);
-	}
-	newcur = strdup(file);
-
-	if (qflag)
-		msg = blaze822(file);
-	else
-		msg = blaze822_file(file);
-	if (!msg) {
-		fprintf(stderr, "show: %s: %s\n", file, strerror(errno));
-		return;
-	}
-
-	if (Hflag) {  // raw headers
-		size_t hl = blaze822_headerlen(msg);
-		char *header = malloc(hl);
-		if (!header)
-			return;
-		int fd = open(file, O_RDONLY);
-		if (fd == -1)
-			return;
-		hl = read(fd, header, hl);
-		fwrite(header, 1, hl, stdout);
-	} else if (Lflag) {  // all headers
-		char *h = 0;
-		while ((h = blaze822_next_header(msg, h))) {
-			char d[4096];
-			blaze822_decode_rfc2047(d, h, sizeof d, "UTF-8");
-			printhdr(d);
-		}
-	} else {  // selected headers
-		char *h = hflag;
-		char *v;
-		while (*h) {
-			char *n = strchr(h, ':');
-			if (n)
-				*n = 0;
-			v = blaze822_chdr(msg, h);
-			if (v) {
-				printhdr(h);
-				printf(": %s\n", v);
-			}
-			if (n) {
-				*n = ':';
-				h = n + 1;
-			} else {
-				break;
-			}
-		}
-	}
-
-	if (qflag)  // no body
-		goto done;
-
-	printf("\n");
-
-	if (rflag || !blaze822_check_mime(msg)) {  // raw body
-		fwrite(blaze822_body(msg), 1, blaze822_bodylen(msg), stdout);
-		goto done;
-	}
-
-	mimecount = 0;
-	walk_mime(msg, 0, render_mime);
-
-done:
-	blaze822_free(msg);
-}
-
-int
-main(int argc, char *argv[])
-{
-	int c;
-	while ((c = getopt(argc, argv, "h:qrtHLx:O:n")) != -1)
-		switch(c) {
-		case 'h': hflag = optarg; break;
-		case 'q': qflag = 1; break;
-		case 'r': rflag = 1; break;
-		case 'H': Hflag = 1; break;
-		case 'L': Lflag = 1; break;
-		case 't': tflag = 1; break;
-		case 'x': xflag = optarg; break;
-		case 'O': Oflag = optarg; break;
-		case 'n': nflag = 1; break;
-                default:
-                        // XXX usage
-                        exit(1);
-                }
-
-	if (xflag) { // extract
-		extract(xflag, argc-optind, argv+optind, 0);
-	} else if (Oflag) { // extract to stdout
-		extract(Oflag, argc-optind, argv+optind, 1);
-	} else if (tflag) { // list
-		blaze822_loop(argc-optind, argv+optind, list);
-	} else { // show
-		if (!(qflag || rflag))
-			filters = blaze822("filters");
-		blaze822_loop(argc-optind, argv+optind, show);
-		if (!nflag) // don't set cur
-			blaze822_seq_setcur(newcur);
-	}
-
-	return 0;
-}
-- 
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