add scan

scan.c

@@ -0,0 +1,148 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+#include <wchar.h>
+
+#include "blaze822.h"
+
+void
+u8putstr(FILE *out, char *s, size_t l, int pad)
+{
+	while (*s && l > 0) {
+		putc(*s, out);
+		if ((*s++ & 0xc0) != 0x80)
+			l--;
+	}
+	if (pad)
+		while (l-- > 0)
+			putc(' ', out);
+}
+
+int
+oneline(char *file)
+{
+	int indent = 0;
+	while (*file == ' ') {
+		indent++;
+		file++;
+	}
+	
+	struct message *msg = blaze822(file);
+
+	if (!msg) {
+		printf("%*.*s \\ %33.33s\n", -33 - indent, 33 + indent, "",
+		    file);
+		return 0;
+	}
+
+	char flag1, flag2;
+
+	char *f = strstr(file, "2:,");
+        if (!f)
+		f = "";
+
+	if (!strchr(f, 'S'))
+		flag1 = '.';
+	else if (strchr(f, 'T'))
+		flag1 = 'x';
+	else
+		flag1 = ' ';
+
+	if (strchr(f, 'F'))
+		flag2 = '#';
+	else if (strchr(f, 'R'))
+		flag2 = '-';
+	else
+		flag2 = ' ';
+
+	char date[16];
+        char *v;
+
+        if ((v = blaze822_hdr(msg, "date"))) {
+		time_t t = blaze822_date(v);
+		if (t != -1) {
+			struct tm *tm;
+			tm = localtime(&t);
+			strftime(date, sizeof date, "%Y-%m-%d", tm);
+		}
+	} else {
+		strcpy(date, "(invalid)");
+		// mtime perhaps?
+	}
+
+
+	char *from = "(unknown)";
+        if ((v = blaze822_hdr(msg, "from"))) {
+		char *disp, *addr;
+		blaze822_addr(v, &disp, &addr);
+		if (*disp)
+			from = disp;
+		else if (*addr)
+			from = addr;
+		else
+			from = "(unknown)";
+	}
+
+	char fromdec[17];
+	if (!decode_rfc2047(from, fromdec, sizeof fromdec))
+		memcpy(fromdec, from, sizeof fromdec);
+	fromdec[sizeof fromdec - 1] = 0;
+
+
+	char *subj = "(no subject)";
+	char subjdec[1000];   // XXX rewrite decode_rfc2047, it overflows!
+        if ((v = blaze822_hdr(msg, "subject"))) {
+		if (decode_rfc2047(v, subjdec, sizeof subjdec - 1))
+			subj = subjdec;
+		else
+			subj = v;
+		
+	}
+
+	printf("%c%c%9s  ", flag1, flag2, date);
+	u8putstr(stdout, fromdec, 17, 1);
+	printf("  ");
+	int z;
+	for (z = 0; z < indent; z++)
+		printf(" ");
+	u8putstr(stdout, subj, 80-33-indent, 0);
+	printf("\n");
+}
+
+int
+main(int argc, char *argv[])
+{
+	char *s;
+	
+	char *line = 0;
+	size_t linelen = 0;
+	int read;
+
+	int i = 0;
+
+	if (argc == 1 || (argc == 2 && strcmp(argv[1], "-") == 0)) {
+		while ((read = getdelim(&line, &linelen, '\n', stdin)) != -1) {
+			if (line[read-1] == '\n') line[read-1] = 0;
+//			printf("%s\n", line);
+			oneline(line);
+			i++;
+		}
+	} else {
+		for (i = 1; i < argc; i++) {
+			oneline(argv[i]);
+		}
+		i--;
+	}
+
+	printf("%d mails scanned\n", i);
+
+	return 0;
+}