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-rw-r--r--docs/examples/crawler.c8
-rw-r--r--docs/examples/curlx.c12
-rw-r--r--docs/examples/getinmemory.c7
-rw-r--r--docs/examples/postinmemory.c7
-rw-r--r--docs/examples/xmlstream.c7
5 files changed, 29 insertions, 12 deletions
diff --git a/docs/examples/crawler.c b/docs/examples/crawler.c
index 0aeb86545..d8fa5a459 100644
--- a/docs/examples/crawler.c
+++ b/docs/examples/crawler.c
@@ -52,7 +52,13 @@ size_t grow_buffer(void *contents, size_t sz, size_t nmemb, void *ctx)
{
size_t realsize = sz * nmemb;
memory *mem = (memory*) ctx;
- mem->buf = realloc(mem->buf, mem->size + realsize);
+ char *ptr = realloc(mem->buf, mem->size + realsize);
+ if(!ptr) {
+ /* out of memory */
+ printf("not enough memory (realloc returned NULL)\n");
+ return 0;
+ }
+ mem->buf = ptr;
memcpy(&(mem->buf[mem->size]), contents, realsize);
mem->size += realsize;
return realsize;
diff --git a/docs/examples/curlx.c b/docs/examples/curlx.c
index 141f5a88a..49f52e614 100644
--- a/docs/examples/curlx.c
+++ b/docs/examples/curlx.c
@@ -515,12 +515,20 @@ int main(int argc, char **argv)
curl_easy_setopt(p.curl, CURLOPT_SSL_CTX_DATA, &p);
{
+ char *ptr;
int lu; int i = 0;
while((lu = BIO_read(in, &binaryptr[i], tabLength-i)) >0) {
i += lu;
if(i == tabLength) {
tabLength += 100;
- binaryptr = realloc(binaryptr, tabLength); /* should be more careful */
+ ptr = realloc(binaryptr, tabLength); /* should be more careful */
+ if(!ptr) {
+ /* out of memory */
+ BIO_printf(p.errorbio, "out of memory (realloc returned NULL)\n");
+ goto fail;
+ }
+ binaryptr = ptr;
+ ptr = NULL;
}
}
tabLength = i;
@@ -551,7 +559,7 @@ int main(int argc, char **argv)
/*** code d'erreur si accept mime ***, egalement code return HTTP != 200 ***/
/* free the header list*/
-
+fail:
curl_slist_free_all(headers);
/* always cleanup */
diff --git a/docs/examples/getinmemory.c b/docs/examples/getinmemory.c
index f5e8942f8..a21a2aafc 100644
--- a/docs/examples/getinmemory.c
+++ b/docs/examples/getinmemory.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -42,13 +42,14 @@ WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
size_t realsize = size * nmemb;
struct MemoryStruct *mem = (struct MemoryStruct *)userp;
- mem->memory = realloc(mem->memory, mem->size + realsize + 1);
- if(mem->memory == NULL) {
+ char *ptr = realloc(mem->memory, mem->size + realsize + 1);
+ if(ptr == NULL) {
/* out of memory! */
printf("not enough memory (realloc returned NULL)\n");
return 0;
}
+ mem->memory = ptr;
memcpy(&(mem->memory[mem->size]), contents, realsize);
mem->size += realsize;
mem->memory[mem->size] = 0;
diff --git a/docs/examples/postinmemory.c b/docs/examples/postinmemory.c
index 488d227be..176f24af3 100644
--- a/docs/examples/postinmemory.c
+++ b/docs/examples/postinmemory.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -39,13 +39,14 @@ WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
size_t realsize = size * nmemb;
struct MemoryStruct *mem = (struct MemoryStruct *)userp;
- mem->memory = realloc(mem->memory, mem->size + realsize + 1);
- if(mem->memory == NULL) {
+ char *ptr = realloc(mem->memory, mem->size + realsize + 1);
+ if(!ptr) {
/* out of memory! */
printf("not enough memory (realloc returned NULL)\n");
return 0;
}
+ mem->memory = ptr;
memcpy(&(mem->memory[mem->size]), contents, realsize);
mem->size += realsize;
mem->memory[mem->size] = 0;
diff --git a/docs/examples/xmlstream.c b/docs/examples/xmlstream.c
index 9ee4a2e88..296ae3b26 100644
--- a/docs/examples/xmlstream.c
+++ b/docs/examples/xmlstream.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -69,14 +69,15 @@ static void characterDataHandler(void *userData, const XML_Char *s, int len)
struct ParserStruct *state = (struct ParserStruct *) userData;
struct MemoryStruct *mem = &state->characters;
- mem->memory = realloc(mem->memory, mem->size + len + 1);
- if(mem->memory == NULL) {
+ char *ptr = realloc(mem->memory, mem->size + len + 1);
+ if(!ptr) {
/* Out of memory. */
fprintf(stderr, "Not enough memory (realloc returned NULL).\n");
state->ok = 0;
return;
}
+ mem->memory = ptr;
memcpy(&(mem->memory[mem->size]), s, len);
mem->size += len;
mem->memory[mem->size] = 0;