From: Fletcher T. Penney <fletcher@fletcherpenney.net>
Date: Sat, 23 Sep 2017 01:09:42 +0000 (-0400)
Subject: FIXED: Add NULL check on my strdup functions
X-Git-Tag: 6.2.2^2~4
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=02c83e83fd9e6101e96c9b4c5c97d58918877e28;p=multimarkdown

FIXED: Add NULL check on my strdup functions
---

diff --git a/Sources/libMultiMarkdown/epub.c b/Sources/libMultiMarkdown/epub.c
index 495eb22..d878599 100644
--- a/Sources/libMultiMarkdown/epub.c
+++ b/Sources/libMultiMarkdown/epub.c
@@ -81,6 +81,10 @@
 
 /// strdup() not available on all platforms
 static char * my_strdup(const char * source) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	char * result = malloc(strlen(source) + 1);
 
 	if (result) {
diff --git a/Sources/libMultiMarkdown/fodt.c b/Sources/libMultiMarkdown/fodt.c
index ebfd32f..5158174 100644
--- a/Sources/libMultiMarkdown/fodt.c
+++ b/Sources/libMultiMarkdown/fodt.c
@@ -76,6 +76,10 @@
 
 /// strdup() not available on all platforms
 static char * my_strdup(const char * source) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	char * result = malloc(strlen(source) + 1);
 
 	if (result) {
diff --git a/Sources/libMultiMarkdown/html.c b/Sources/libMultiMarkdown/html.c
index 740dd43..156f333 100644
--- a/Sources/libMultiMarkdown/html.c
+++ b/Sources/libMultiMarkdown/html.c
@@ -78,6 +78,10 @@
 
 /// strdup() not available on all platforms
 static char * my_strdup(const char * source) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	char * result = malloc(strlen(source) + 1);
 
 	if (result) {
diff --git a/Sources/libMultiMarkdown/latex.c b/Sources/libMultiMarkdown/latex.c
index 3858d64..6b31942 100644
--- a/Sources/libMultiMarkdown/latex.c
+++ b/Sources/libMultiMarkdown/latex.c
@@ -73,6 +73,10 @@
 
 /// strdup() not available on all platforms
 static char * my_strdup(const char * source) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	char * result = malloc(strlen(source) + 1);
 
 	if (result) {
diff --git a/Sources/libMultiMarkdown/mmd.c b/Sources/libMultiMarkdown/mmd.c
index 830d615..c1e8259 100644
--- a/Sources/libMultiMarkdown/mmd.c
+++ b/Sources/libMultiMarkdown/mmd.c
@@ -86,6 +86,10 @@ void mmd_pair_tokens_in_block(token * block, token_pair_engine * e, stack * s);
 
 /// strdup() not available on all platforms
 static char * my_strdup(const char * source) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	char * result = malloc(strlen(source) + 1);
 
 	if (result) {
diff --git a/Sources/libMultiMarkdown/opendocument-content.c b/Sources/libMultiMarkdown/opendocument-content.c
index 595fb45..467c630 100644
--- a/Sources/libMultiMarkdown/opendocument-content.c
+++ b/Sources/libMultiMarkdown/opendocument-content.c
@@ -122,6 +122,10 @@
 
 /// strdup() not available on all platforms
 static char * my_strdup(const char * source) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	char * result = malloc(strlen(source) + 1);
 
 	if (result) {
diff --git a/Sources/libMultiMarkdown/opendocument.c b/Sources/libMultiMarkdown/opendocument.c
index 49ad763..5ea74af 100644
--- a/Sources/libMultiMarkdown/opendocument.c
+++ b/Sources/libMultiMarkdown/opendocument.c
@@ -122,6 +122,10 @@
 
 /// strdup() not available on all platforms
 static char * my_strdup(const char * source) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	char * result = malloc(strlen(source) + 1);
 
 	if (result) {
diff --git a/Sources/libMultiMarkdown/transclude.c b/Sources/libMultiMarkdown/transclude.c
index fa473ab..8f4942f 100644
--- a/Sources/libMultiMarkdown/transclude.c
+++ b/Sources/libMultiMarkdown/transclude.c
@@ -68,6 +68,10 @@
 
 /// strndup not available on all platforms
 static char * my_strndup(const char * source, size_t n) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	size_t len = 0;
 	char * result;
 	const char * test = source;
diff --git a/Sources/libMultiMarkdown/writer.c b/Sources/libMultiMarkdown/writer.c
index e6d9c55..d1087f6 100644
--- a/Sources/libMultiMarkdown/writer.c
+++ b/Sources/libMultiMarkdown/writer.c
@@ -91,6 +91,10 @@ void store_abbreviation(scratch_pad * scratch, footnote * a);
 
 /// strndup not available on all platforms
 static char * my_strndup(const char * source, size_t n) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	size_t len = 0;
 	char * result;
 	const char * test = source;
@@ -117,6 +121,10 @@ static char * my_strndup(const char * source, size_t n) {
 
 /// strdup() not available on all platforms
 static char * my_strdup(const char * source) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	char * result = malloc(strlen(source) + 1);
 
 	if (result) {
diff --git a/Sources/multimarkdown/main.c b/Sources/multimarkdown/main.c
index fe4a36a..9797ec4 100644
--- a/Sources/multimarkdown/main.c
+++ b/Sources/multimarkdown/main.c
@@ -84,6 +84,10 @@ struct arg_rem *a_rem1, *a_rem2, *a_rem3, *a_rem4, *a_rem5, *a_rem6;
 
 /// strdup() not available on all platforms
 static char * my_strdup(const char * source) {
+	if (source == NULL) {
+		return NULL;
+	}
+
 	char * result = malloc(strlen(source) + 1);
 
 	if (result) {