Add frm(1)-like program for maildir.

diff --git a/Makefile b/Makefile
new file mode 100644 (file)
index 0000000..3ddae4d
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,14 @@
+# $Id$
+
+PROG=          mdfrm
+NOMAN=         #defined
+
+CFLAGS=                -Wall
+LDFLAGS=       -static
+
+prefix?=       /usr/local
+exec_prefix?=  ${prefix}
+BINDIR?=       ${exec_prefix}/bin
+MANDIR?=       ${prefix}/man
+
+.include <bsd.prog.mk>

diff --git a/mdfrm.c b/mdfrm.c
new file mode 100644 (file)
index 0000000..55fac72
--- /dev/null
+++ b/mdfrm.c
@@ -0,0 +1,122 @@
+/* mdfrm.c -- mdfrm(1) for maildir.
+ *
+ * $Id$
+ *
+ * This program is in the public domain.
+ */
+
+#include <sys/types.h>
+
+#include <dirent.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+/* Note that PATH_MAX is supposed to include the terminating null. */
+#ifndef PATH_MAX
+#ifndef MAXPATHLEN
+#define PATH_MAX 65
+#else
+#define PATH_MAX MAXPATHLEN
+#endif
+#endif
+
+enum {
+    FROMLEN = 6,                /* "From: "*/
+    SUBJLEN = 9,                /* "Subject: "*/
+
+    /* Number of characters for each field we actually output.  This
+     * must also be changed in the printf functions at the end.
+     */
+    FROMCOUNT = 24,
+    SUBJCOUNT = 53
+};
+
+int
+main(int argc, char *argv[])
+{
+    char *dirname;
+    char buf[PATH_MAX];
+    DIR *dir;
+    struct dirent *dirent;
+    char *filename;
+    FILE *file;
+    char *line, *fromheader, *subjheader;
+    size_t len, fromcount, subjcount;
+
+    if (!(dirname = argv[1])) {
+        if (!(dirname = getenv("MAILDIR"))) {
+            if (!(dirname = getenv("HOME"))) {
+                errx(EX_UNAVAILABLE, "Could not find maildir.");
+            } else {
+                snprintf(buf, PATH_MAX, "%s/Maildir", dirname);
+                dirname = buf;
+            }
+        }
+    }
+
+    if (chdir(dirname) != 0) {
+        err(EX_OSERR, "Failed chdir(%s)", dirname);
+    }
+
+    if (chdir("new") != 0) {
+        err(EX_OSERR, "Failed chdir(%s/new)", dirname);
+    }
+
+    dir = opendir(".");
+    if (!dir) {
+        err(EX_OSERR, "Failed opendir(%s/new)", dirname);
+    }
+
+    fromheader = malloc(FROMCOUNT + 1);
+    subjheader = malloc(SUBJCOUNT + 1);
+    for (dirent = readdir(dir); dirent; dirent = readdir(dir)) {
+        filename = dirent->d_name;
+        if (filename[0] == '.') {
+            continue;
+        }
+
+        if (!(file = fopen(filename, "r"))) {
+            err(EX_OSERR, "Failed fopen(%s)", filename);
+        }
+
+        fromheader[0] = subjheader[0] = '\0';
+        fromcount = subjcount = 0;
+        while ((line = fgetln(file, &len))) {
+            if (len <= 1) {
+                break;
+            }
+            line[len - 1] = '\0';
+
+            if (len > FROMLEN
+                && strncmp(line, "From: ", FROMLEN) == 0) {
+                line += FROMLEN;
+                len -= FROMLEN;
+                if (len < FROMCOUNT) {
+                    fromcount = len;
+                } else {
+                    fromcount = FROMCOUNT;
+                }
+                strncpy(fromheader, line, fromcount);
+            } else if (len > SUBJLEN
+                       && strncmp(line, "Subject: ", SUBJLEN) == 0) {
+                line += SUBJLEN;
+                len -= SUBJLEN;
+                if (len < SUBJCOUNT) {
+                    subjcount = len;
+                } else {
+                    subjcount = SUBJCOUNT;
+                }
+                strncpy(subjheader, line, subjcount);
+            }
+        }
+
+        printf("%-24s  ", fromheader);
+        printf("%-53s\n", subjheader);
+    }
+
+    return 0;
+}