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[PATCH v2 1/2] elf2dmp: Check curl_easy_setopt() return value
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH v2 1/2] elf2dmp: Check curl_easy_setopt() return value |
Date: |
Fri, 10 Sep 2021 19:06:55 +0200 |
From: Peter Maydell <peter.maydell@linaro.org>
Coverity points out that we aren't checking the return value
from curl_easy_setopt().
Fixes: Coverity CID 1458895
Inspired-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
Informal T-b tag on
https://lore.kernel.org/qemu-devel/20210909004313.1dadb24e@192.168.1.7/
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
v1 from Peter:
20210901143910.17112-2-peter.maydell@linaro.org/">https://lore.kernel.org/qemu-devel/20210901143910.17112-2-peter.maydell@linaro.org/
---
contrib/elf2dmp/download.c | 22 ++++++++++------------
1 file changed, 10 insertions(+), 12 deletions(-)
diff --git a/contrib/elf2dmp/download.c b/contrib/elf2dmp/download.c
index d09e607431f..bd7650a7a27 100644
--- a/contrib/elf2dmp/download.c
+++ b/contrib/elf2dmp/download.c
@@ -25,21 +25,19 @@ int download_url(const char *name, const char *url)
goto out_curl;
}
- curl_easy_setopt(curl, CURLOPT_URL, url);
- curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, NULL);
- curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
- curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
- curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
-
- if (curl_easy_perform(curl) != CURLE_OK) {
- err = 1;
- fclose(file);
+ if (curl_easy_setopt(curl, CURLOPT_URL, url) != CURLE_OK
+ || curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, NULL) != CURLE_OK
+ || curl_easy_setopt(curl, CURLOPT_WRITEDATA, file) != CURLE_OK
+ || curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1) != CURLE_OK
+ || curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0) != CURLE_OK
+ || curl_easy_perform(curl) != CURLE_OK) {
unlink(name);
- goto out_curl;
+ fclose(file);
+ err = 1;
+ } else {
+ err = fclose(file);
}
- err = fclose(file);
-
out_curl:
curl_easy_cleanup(curl);
--
2.31.1