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authorRobert James Kaes <rjkaes@users.sourceforge.net>2002-05-23 04:42:30 +0000
committerRobert James Kaes <rjkaes@users.sourceforge.net>2002-05-23 04:42:30 +0000
commit1690c05075e2d9026403e4f86111a494bd0d391b (patch)
tree2a0aefed6308148ac40c82df7aa538d5564ca51d /src
parentfd3e6e84fbc665fa284aa900a2a7269ce89c61d4 (diff)
downloadtinyproxy-1690c05075e2d9026403e4f86111a494bd0d391b.tar.gz
tinyproxy-1690c05075e2d9026403e4f86111a494bd0d391b.zip
Initial addition to CVS. Moved the three "text" related functions into a
separate file.
Diffstat (limited to '')
-rw-r--r--src/text.c99
-rw-r--r--src/text.h31
2 files changed, 130 insertions, 0 deletions
diff --git a/src/text.c b/src/text.c
new file mode 100644
index 0000000..f58302f
--- /dev/null
+++ b/src/text.c
@@ -0,0 +1,99 @@
+/* $Id: text.c,v 1.1 2002-05-23 04:42:30 rjkaes Exp $
+ *
+ * The functions included here are useful for text manipulation. They
+ * replace or augment the standard C string library. These functions
+ * are either safer replacements, or they provide services not included
+ * with the standard C string library.
+ *
+ * Copyright (C) 2002 Robert James Kaes (rjkaes@flarenet.com)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include "tinyproxy.h"
+
+#include "text.h"
+
+#ifndef HAVE_STRLCPY
+/*
+ * Function API taken from OpenBSD. Like strncpy(), but does not 0 fill the
+ * buffer, and always NULL terminates the buffer. size is the size of the
+ * destination buffer.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t size)
+{
+ size_t len = strlen(src);
+ size_t ret = len;
+
+ if (len >= size)
+ len = size - 1;
+
+ memcpy(dst, src, len);
+ dst[len] = '\0';
+
+ return ret;
+}
+#endif
+
+#ifndef HAVE_STRLCAT
+/*
+ * Function API taken from OpenBSD. Like strncat(), but does not 0 fill the
+ * buffer, and always NULL terminates the buffer. size is the length of the
+ * buffer, which should be one more than the maximum resulting string
+ * length.
+ */
+size_t
+strlcat(char *dst, const char *src, size_t size)
+{
+ size_t len1 = strlen(dst);
+ size_t len2 = strlen(src);
+ size_t ret = len1 + len2;
+
+ if (len1 + len2 >= size)
+ len2 = size - len1 - 1;
+ if (len2 > 0) {
+ memcpy(dst + len1, src, len2);
+ dst[len1 + len2] = '\0';
+ }
+
+ return ret;
+}
+#endif
+
+/*
+ * Removes any new-line or carriage-return characters from the end of the
+ * string. This function is named afrer the same function in Perl.
+ * "length" should be the number of characters in the buffer, not including
+ * the trailing NULL.
+ *
+ * Returns the number of characters removed from the end of the string.
+ */
+size_t
+chomp(char *buffer, size_t length)
+{
+ size_t chars;
+
+ assert(buffer != NULL);
+
+ chars = 0;
+
+ --length;
+ while (buffer[length] == '\r' || buffer[length] == '\n') {
+ buffer[length--] = '\0';
+ chars++;
+
+ if (length < 0)
+ break;
+ }
+
+ return chars;
+}
diff --git a/src/text.h b/src/text.h
new file mode 100644
index 0000000..fd0940a
--- /dev/null
+++ b/src/text.h
@@ -0,0 +1,31 @@
+/* $Id: text.h,v 1.1 2002-05-23 04:42:30 rjkaes Exp $
+ *
+ * See 'text.c' for a detailed description.
+ *
+ * Copyright (C) 2002 Robert James Kaes (rjkaes@flarenet.com)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef TINYPROXY_TEXT_H
+#define TINYPROXY_TEXT_H
+
+#ifndef HAVE_STRLCAT
+extern size_t strlcat(char *dst, const char *src, size_t size);
+#endif /* HAVE_STRLCAT */
+
+#ifndef HAVE_STRLCPY
+extern size_t strlcpy(char *dst, const char *src, size_t size);
+#endif /* HAVE_STRLCPY */
+
+extern size_t chomp(char *buffer, size_t length);
+
+#endif