add minc

Makefile

@@ -1,6 +1,6 @@
 CFLAGS=-g -O1 -Wall -Wno-switch -Wextra -fstack-protector-strong -D_FORTIFY_SOURCE=2
 
-ALL = mscan mthread mhdr mshow mlist mseq msort mmime
+ALL = mscan mthread mhdr mshow mlist mseq msort mmime minc
 
 all: $(ALL)
 
@@ -12,6 +12,7 @@ mlist: mlist.o
 mseq: mseq.o seq.o
 msort: msort.o blaze822.o seq.o
 mmime: mmime.o
+minc: minc.o
 
 clean: FRC
 	-rm -f $(ALL) *.o

minc.c

@@ -0,0 +1,76 @@
+#include <sys/types.h>
+
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <search.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "blaze822.h"
+
+static int qflag;
+static int status;
+
+void
+inc(char *dir)
+{
+	DIR *fd;
+        struct dirent *d;
+	char src[PATH_MAX];
+	char dst[PATH_MAX];
+
+	snprintf(src, sizeof src, "%s/new", dir);
+	fd = opendir(src);
+	if (!fd) {
+		fprintf(stderr, "minc: can't open maildir '%s': %s\n",
+		    dir, strerror(errno));
+		status = 2;
+		return;
+	}
+
+	while ((d = readdir(fd))) {
+		if (d->d_type != DT_REG && d->d_type != DT_UNKNOWN)
+			continue;
+		if (d->d_name[0] == '.')
+			continue;
+
+		snprintf(src, sizeof src, "%s/new/%s",
+		    dir, d->d_name);
+		snprintf(dst, sizeof dst, "%s/cur/%s%s",
+		    dir, d->d_name, strstr(d->d_name, ":2,") ? "" : ":2,");
+		if (rename(src, dst) < 0) {
+			fprintf(stderr, "minc: can't rename '%s' to '%s': %s\n",
+			    src, dst, strerror(errno));
+			status = 3;
+			continue;
+		}
+
+		if (!qflag)
+			printf("%s\n", dst);
+	}
+
+	closedir(fd);
+}
+
+int
+main(int argc, char *argv[])
+{
+	int c, i;
+	while ((c = getopt(argc, argv, "q")) != -1)
+		switch(c) {
+		case 'q': qflag = 1; break;
+		default:
+			// XXX usage
+			exit(1);
+		}
+
+	status = 0;
+	for (i = optind; i < argc; i++)
+		inc(argv[i]);
+
+	return status;
+}