1 files changed, 101 insertions, 0 deletions
diff --git a/lib/util/getline.c b/lib/util/getline.c
new file mode 100644
index 0000000..153037b
--- /dev/null
+++ b/lib/util/getline.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2009-2010, 2012-2015 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, 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.
+ */
+
+/*
+ * This is an open source non-commercial project. Dear PVS-Studio, please check it.
+ * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+ */
+
+#include <config.h>
+
+#ifndef HAVE_GETLINE
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRINGS_H */
+#include <limits.h>
+
+#include "sudo_compat.h"
+
+#ifdef HAVE_FGETLN
+ssize_t
+sudo_getline(char **bufp, size_t *bufsizep, FILE *fp)
+{
+    char *buf, *cp;
+    size_t bufsize;
+    size_t len;
+
+    buf = fgetln(fp, &len);
+    if (buf) {
+	bufsize = *bufp ? *bufsizep : 0;
+	if (bufsize == 0 || bufsize - 1 < len) {
+	    bufsize = len + 1;
+	    cp = realloc(*bufp, bufsize);
+	    if (cp == NULL)
+		return -1;
+	    *bufp = cp;
+	    *bufsizep = bufsize;
+	}
+	memcpy(*bufp, buf, len);
+	(*bufp)[len] = '\0';
+    }
+    return buf ? len : -1;
+}
+#else
+ssize_t
+sudo_getline(char **bufp, size_t *bufsizep, FILE *fp)
+{
+    char *buf, *cp;
+    size_t bufsize;
+    ssize_t len = 0;
+
+    buf = *bufp;
+    bufsize = *bufsizep;
+    if (buf == NULL || bufsize == 0) {
+	bufsize = LINE_MAX;
+	cp = realloc(buf, bufsize);
+	if (cp == NULL)
+	    return -1;
+	buf = cp;
+    }
+
+    for (;;) {
+	if (fgets(buf + len, bufsize - len, fp) == NULL) {
+	    len = -1;
+	    break;
+	}
+	len = strlen(buf);
+	if (!len || buf[len - 1] == '\n' || feof(fp))
+	    break;
+	cp = reallocarray(buf, bufsize, 2);
+	if (cp == NULL)
+	    return -1;
+	bufsize *= 2;
+	buf = cp;
+    }
+    *bufp = buf;
+    *bufsizep = bufsize;
+    return len;
+}
+#endif /* HAVE_FGETLN */
+#endif /* HAVE_GETLINE */