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authorMarcel Holtmann <marcel@holtmann.org>2005-04-22 12:15:36 +0000
committerMarcel Holtmann <marcel@holtmann.org>2005-04-22 12:15:36 +0000
commita66a22cd29417810d91c057c6febe817f3d7b26a (patch)
tree2bcb4eea28a7c693e2c0ebbda3e6e120ae2658a4 /common
parent70e5fac9bd0fb2294eb7e585c005eb096ae84f5d (diff)
Add the textfile library for ASCII based file access
Diffstat (limited to 'common')
-rw-r--r--common/Makefile.am9
-rw-r--r--common/textfile.c100
-rw-r--r--common/textfile.h29
3 files changed, 138 insertions, 0 deletions
diff --git a/common/Makefile.am b/common/Makefile.am
new file mode 100644
index 00000000..ffcddf6e
--- /dev/null
+++ b/common/Makefile.am
@@ -0,0 +1,9 @@
+#
+# $Id$
+#
+
+noinst_LIBRARIES = libtextfile.a
+
+libtextfile_a_SOURCES = textfile.h textfile.c
+
+MAINTAINERCLEANFILES = Makefile.in
diff --git a/common/textfile.c b/common/textfile.c
new file mode 100644
index 00000000..6f84cfa9
--- /dev/null
+++ b/common/textfile.c
@@ -0,0 +1,100 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+ * CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+ * COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+ * SOFTWARE IS DISCLAIMED.
+ *
+ *
+ * $Id$
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <malloc.h>
+#include <string.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+char *textfile_get(const char *pathname, const char *key)
+{
+ struct stat st;
+ char *map, *off, *end, *str = NULL;
+ off_t size; size_t len;
+ int fd;
+
+ fd = open(pathname, O_RDONLY);
+ if (fd < 0)
+ return NULL;
+
+ if (flock(fd, LOCK_SH) < 0)
+ goto close;
+
+ if (fstat(fd, &st) < 0)
+ goto unlock;
+
+ size = st.st_size;
+
+ map = mmap(0, size, PROT_READ, MAP_SHARED, fd, 0);
+ if (map == MAP_FAILED)
+ goto close;
+
+ off = strstr(map, key);
+ if (!off)
+ goto unmap;
+
+ if (off > map) {
+ while (*(off - 1) != '\r' && *(off - 1) != '\n') {
+ off = strstr(map, key);
+ if (!off)
+ goto unmap;
+ }
+ }
+
+ end = strpbrk(off, "\r\n");
+ if (!end)
+ goto unmap;
+
+ len = strlen(key);
+ str = malloc(end - off - len);
+ memset(str, 0, end - off - len);
+ if (!str)
+ goto unmap;
+
+ strncpy(str, off + len + 1, end - off - len - 1);
+
+unmap:
+ munmap(map, size);
+
+unlock:
+ flock(fd, LOCK_UN);
+
+close:
+ close(fd);
+
+ return str;
+}
diff --git a/common/textfile.h b/common/textfile.h
new file mode 100644
index 00000000..56a0bc10
--- /dev/null
+++ b/common/textfile.h
@@ -0,0 +1,29 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+ * CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+ * COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+ * SOFTWARE IS DISCLAIMED.
+ *
+ *
+ * $Id$
+ */
+
+char *textfile_get(const char *pathname, const char *key);