1 files changed, 153 insertions, 0 deletions
diff --git a/maildir/maildirfilename.c b/maildir/maildirfilename.c
new file mode 100644
index 0000000..c14ae6b
--- /dev/null
+++ b/maildir/maildirfilename.c
@@ -0,0 +1,153 @@
+/*
+** Copyright 2000-2002 Double Precision, Inc.
+** See COPYING for distribution information.
+*/
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/types.h>
+#if HAVE_DIRENT_H
+#include <dirent.h>
+#define NAMLEN(dirent) strlen((dirent)->d_name)
+#else
+#define dirent direct
+#define NAMLEN(dirent) (dirent)->d_namlen
+#if HAVE_SYS_NDIR_H
+#include <sys/ndir.h>
+#endif
+#if HAVE_SYS_DIR_H
+#include <sys/dir.h>
+#endif
+#if HAVE_NDIR_H
+#include <ndir.h>
+#endif
+#endif
+#include	<sys/types.h>
+#include	<sys/stat.h>
+#include	<string.h>
+#include	<stdlib.h>
+#include	<time.h>
+#if	HAVE_UNISTD_H
+#include	<unistd.h>
+#endif
+#include	<stdio.h>
+#include	<ctype.h>
+#include	<errno.h>
+
+#include	"maildirmisc.h"
+
+
+/*
+** char *maildir_filename(const char *maildir, const char *folder,
+**   const char *filename)
+**	- find a message in a maildir
+**
+** Return the full path to the indicated message.  If the message flags
+** in filename have changed, we search the maildir for this message.
+*/
+
+char *maildir_filename(const char *maildir,
+	const char *folder, const char *filename)
+{
+struct stat stat_buf;
+char	*p, *q;
+DIR *dirp;
+struct dirent *de;
+char	*dir;
+
+	if (strchr(filename, '/') || *filename == '.')
+	{
+		errno=ENOENT;
+		return (0);
+	}
+
+	dir=maildir_folderdir(maildir, folder);
+
+	if (!dir)	return (0);
+
+	p=malloc(strlen(dir)+strlen(filename)+sizeof("/cur/"));
+
+	if (!p)
+	{
+		free(dir);
+		return (0);
+	}
+
+	strcat(strcat(strcpy(p, dir), "/cur/"), filename);
+
+	if (stat(p, &stat_buf) == 0)
+	{
+		free(dir);
+		return (p);
+	}
+
+	/* Oh, a wise guy... */
+
+	q=strrchr(p, '/');
+	*q=0;
+	dirp=opendir(p);
+	*q='/';
+
+	if ( dirp == NULL)
+	{
+		free(dir);
+		return p;
+	}
+
+	/* Compare filenames, ignore filename size if set by maildirquota */
+
+	while ((de=readdir(dirp)) != NULL)
+	{
+	const char *a=filename;
+	const char *b=de->d_name;
+
+		for (;;)
+		{
+			if ( a[0] == ',' && a[1] == 'S' && a[2] == '=')
+			{
+				/* File size - quota shortcut - skip */
+				a += 3;
+				while (*a && isdigit((int)(unsigned char)*a))
+					++a;
+			}
+
+			if ( b[0] == ',' && b[1] == 'S' && b[2] == '=')
+			{
+				/* File size - quota shortcut - skip */
+				b += 3;
+				while (*b && isdigit((int)(unsigned char)*b))
+					++b;
+			}
+
+			if ( (*a == 0 || *a == MDIRSEP[0]) && (*b == 0 || *b == MDIRSEP[0]))
+			{
+				free(p);
+				p=malloc(strlen(dir)+strlen(de->d_name)+
+					sizeof("/cur/"));
+				if (!p)
+				{
+					closedir(dirp);
+					free(dir);
+					return (0);
+				}
+
+				strcat(strcat(strcpy(p, dir), "/cur/"),
+					de->d_name);
+				closedir(dirp);
+				free(dir);
+				return (p);
+			}
+			if ( *a == 0 || *a == MDIRSEP[0] || *b == 0 || *b == MDIRSEP[0] ||
+				*a != *b)
+				break;
+
+			++a;
+			++b;
+		}
+	}
+	closedir(dirp);
+	free(dir);
+	return (p);
+}