--- /dev/null
+/*
+ * b2m - a filter for Babyl -> Unix mail files
+ *
+ * usage: b2m < babyl > mailbox
+ *
+ * I find this useful whenever I have to use a
+ * system which - shock horror! - doesn't run
+ * Gnu emacs. At least now I can read all my
+ * Gnumacs Babyl format mail files!
+ *
+ * it's not much but it's free!
+ *
+ * Ed Wilkinson
+ * E.Wilkinson@massey.ac.nz
+ * Mon Nov 7 15:54:06 PDT 1988
+ */
+
+/* Made conformant to the GNU coding standards January, 1995
+ by Francesco Potorti` <pot@cnuce.cnr.it>. */
+
+#ifdef HAVE_CONFIG_H
+#include <../src/config.h>
+/* On some systems, Emacs defines static as nothing for the sake
+ of unexec. We don't want that here since we don't use unexec. */
+#undef static
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <sys/types.h>
+#ifdef MSDOS
+#include <fcntl.h>
+#endif
+
+#undef TRUE
+#define TRUE 1
+#undef FALSE
+#define FALSE 0
+
+/* Exit codes for success and failure. */
+#ifdef VMS
+#define GOOD 1
+#define BAD 0
+#else
+#define GOOD 0
+#define BAD 1
+#endif
+
+#define streq(s,t) (strcmp (s, t) == 0)
+#define strneq(s,t,n) (strncmp (s, t, n) == 0)
+
+typedef int logical;
+
+/*
+ * A `struct linebuffer' is a structure which holds a line of text.
+ * `readline' reads a line from a stream into a linebuffer and works
+ * regardless of the length of the line.
+ */
+struct linebuffer
+{
+ long size;
+ char *buffer;
+};
+
+
+static long *xmalloc (unsigned int);
+static long *xrealloc (void *, unsigned int);
+static char *concat (char *s1, char *s2, char *s3);
+static long readline (struct linebuffer *, FILE *);
+static void fatal (char *);
+
+/*
+ * xnew -- allocate storage. SYNOPSIS: Type *xnew (int n, Type);
+ */
+#define xnew(n, Type) ((Type *) xmalloc ((n) * sizeof (Type)))
+
+
+
+char *progname;
+
+int
+main (int argc, char *argv[])
+{
+ logical labels_saved, printing, header;
+ time_t ltoday;
+ char *labels = NULL, *p, *today;
+ struct linebuffer data;
+
+#ifdef MSDOS
+ _fmode = O_BINARY; /* all of files are treated as binary files */
+#if __DJGPP__ > 1
+ if (!isatty (fileno (stdout)))
+ setmode (fileno (stdout), O_BINARY);
+ if (!isatty (fileno (stdin)))
+ setmode (fileno (stdin), O_BINARY);
+#else /* not __DJGPP__ > 1 */
+ (stdout)->_flag &= ~_IOTEXT;
+ (stdin)->_flag &= ~_IOTEXT;
+#endif /* not __DJGPP__ > 1 */
+#endif
+ progname = argv[0];
+
+ if (argc != 1)
+ {
+ fprintf (stderr, "Usage: %s <babylmailbox >unixmailbox\n", progname);
+ exit (GOOD);
+ }
+ labels_saved = printing = header = FALSE;
+ ltoday = time (0);
+ today = ctime (<oday);
+ data.size = 200;
+ data.buffer = xnew (200, char);
+
+ if (readline (&data, stdin) == 0
+ || !strneq (data.buffer, "BABYL OPTIONS:", 14))
+ fatal ("standard input is not a Babyl mailfile.");
+
+ while (readline (&data, stdin) > 0)
+ {
+ if (streq (data.buffer, "*** EOOH ***") && !printing)
+ {
+ printing = header = TRUE;
+ printf ("From \"Babyl to mail by %s\" %s", progname, today);
+ continue;
+ }
+
+ if (data.buffer[0] == '\037')
+ {
+ if (data.buffer[1] == '\0')
+ continue;
+ else if (data.buffer[1] == '\f')
+ {
+ /* Save labels. */
+ readline (&data, stdin);
+ p = strtok (data.buffer, " ,\r\n\t");
+ labels = "X-Babyl-Labels: ";
+
+ while ((p = strtok (NULL, " ,\r\n\t")))
+ labels = concat (labels, p, ", ");
+
+ p = &labels[strlen (labels) - 2];
+ if (*p == ',')
+ *p = '\0';
+ printing = header = FALSE;
+ labels_saved = TRUE;
+ continue;
+ }
+ }
+
+ if ((data.buffer[0] == '\0') && header)
+ {
+ header = FALSE;
+ if (labels_saved)
+ puts (labels);
+ }
+
+ if (printing)
+ puts (data.buffer);
+ }
+ return 0;
+}
+
+
+
+/*
+ * Return a newly-allocated string whose contents
+ * concatenate those of s1, s2, s3.
+ */
+static char *
+concat (char *s1, char *s2, char *s3)
+{
+ int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
+ char *result = xnew (len1 + len2 + len3 + 1, char);
+
+ strcpy (result, s1);
+ strcpy (result + len1, s2);
+ strcpy (result + len1 + len2, s3);
+ result[len1 + len2 + len3] = '\0';
+
+ return result;
+}
+
+/*
+ * Read a line of text from `stream' into `linebuffer'.
+ * Return the number of characters read from `stream',
+ * which is the length of the line including the newline, if any.
+ */
+static long
+readline (struct linebuffer *linebuffer, FILE *stream)
+{
+ char *buffer = linebuffer->buffer;
+ register char *p = linebuffer->buffer;
+ register char *pend;
+ int chars_deleted;
+
+ pend = p + linebuffer->size; /* Separate to avoid 386/IX compiler bug. */
+
+ while (1)
+ {
+ register int c = getc (stream);
+ if (p == pend)
+ {
+ linebuffer->size *= 2;
+ buffer = (char *) xrealloc (buffer, linebuffer->size);
+ p += buffer - linebuffer->buffer;
+ pend = buffer + linebuffer->size;
+ linebuffer->buffer = buffer;
+ }
+ if (c == EOF)
+ {
+ chars_deleted = 0;
+ break;
+ }
+ if (c == '\n')
+ {
+ if (p[-1] == '\r' && p > buffer)
+ {
+ *--p = '\0';
+ chars_deleted = 2;
+ }
+ else
+ {
+ *p = '\0';
+ chars_deleted = 1;
+ }
+ break;
+ }
+ *p++ = c;
+ }
+
+ return (p - buffer + chars_deleted);
+}
+
+/*
+ * Like malloc but get fatal error if memory is exhausted.
+ */
+static long *
+xmalloc (unsigned int size)
+{
+ long *result = (long *) malloc (size);
+ if (result == NULL)
+ fatal ("virtual memory exhausted");
+ return result;
+}
+
+static long *
+xrealloc (void *ptr, unsigned int size)
+{
+ long *result = (long *) realloc (ptr, size);
+ if (result == NULL)
+ fatal ("virtual memory exhausted");
+ return result;
+}
+
+static void
+fatal (char *message)
+{
+ fprintf (stderr, "%s: %s\n", progname, message);
+ exit (BAD);
+}
+
projects / chise / xemacs-chise.git.1 / blobdiff