add maddr: show mail addresses in messages

1 files changed, 76 insertions, 0 deletions

diff --git a/maddr.c b/maddr.c
new file mode 100644
index 0000000..fc87763
--- /dev/null
+++ b/maddr.c
@@ -0,0 +1,76 @@
+#include <sys/types.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "blaze822.h"
+
+static char defaulthflags[] = "from:sender:reply-to:to:cc:bcc:"
+    "resent-from:resent-sender:resent-to:resent-cc:resent-bcc:";
+static char *hflag = defaulthflags;
+
+void
+addr(char *file)
+{
+	while (*file == ' ' || *file == '\t')
+		file++;
+	
+	struct message *msg = blaze822(file);
+        if (!msg)
+		return;
+
+	char *h = hflag;
+	char *v;
+	while (*h) {
+		char *n = strchr(h, ':');
+		if (n)
+			*n = 0;
+		v = blaze822_chdr(msg, h);
+		if (v) {
+			char *disp, *addr;
+			while ((v = blaze822_addr(v, &disp, &addr))) {
+				if (disp && addr && strcmp(disp, addr) == 0)
+					disp = 0;
+				if (disp && addr) {
+					char dispdec[1024];
+					blaze822_decode_rfc2047(dispdec, disp,
+					    sizeof dispdec - 1, "UTF-8");
+					dispdec[sizeof dispdec - 1] = 0;
+
+					printf("%s <%s>\n", dispdec, addr);
+				} else if (addr) {
+					printf("%s\n", addr);
+				}
+			}
+		}
+		if (n) {
+			*n = ':';
+			h = n + 1;
+		} else {
+			break;
+		}
+	}
+}
+
+int
+main(int argc, char *argv[])
+{
+        int c;
+        while ((c = getopt(argc, argv, "h:")) != -1)
+                switch(c) {
+                case 'h': hflag = optarg; break;
+                default:
+                        // XXX usage
+                        exit(1);
+                }			
+
+        if (argc == optind && isatty(0))
+                blaze822_loop1(":", addr);
+        else
+		blaze822_loop(argc-optind, argv+optind, addr);
+
+        return 0;
+}