> $ fetch "https://www.tddft.org/programs/libxc/down.php?file=4.3.4/libxc-4.3.4.tar.gz" > fetch: https://www.tddft.org/programs/libxc/down.php?file=4.3.4/libxc-4.3.4.tar.gz: No address record But wget succeeds: > $ wget "https://www.tddft.org/programs/libxc/down.php?file=4.3.4/libxc-4.3.4.tar.gz" > --2020-01-12 11:40:57-- https://www.tddft.org/programs/libxc/down.php?file=4.3.4/libxc-4.3.4.tar.gz > Resolving www.tddft.org (www.tddft.org)... 193.137.208.200 > Connecting to www.tddft.org (www.tddft.org)|193.137.208.200|:443... connected. > HTTP request sent, awaiting response... 302 Found > Location: down/4.3.4/libxc-4.3.4.tar.gz [following] > --2020-01-12 11:40:59-- https://www.tddft.org/programs/libxc/down/4.3.4/libxc-4.3.4.tar.gz > Reusing existing connection to www.tddft.org:443. > HTTP request sent, awaiting response... 200 OK > Length: 15602575 (15M) [application/x-gzip] > Saving to: ‘down.php?file=4.3.4%2Flibxc-4.3.4.tar.gz.4’ > > down.php?file=4.3.4%2Flibxc-4.3.4.tar.gz.4 1%[> ] 279.68K 187KB/s ^
To clarify the issue: $ fetch -v "https://www.tddft.org/programs/libxc/down.php?file=4.3.4/libxc-4.3.4.tar.gz" resolving server address: www.tddft.org:443 SSL options: 82004854 Peer verification enabled Using CA cert file: /usr/local/etc/ssl/cert.pem Verify hostname TLSv1.2 connection established using ECDHE-RSA-AES256-GCM-SHA384 Certificate subject: /CN=tddft.org Certificate issuer: /C=US/O=Let's Encrypt/CN=R3 requesting https://www.tddft.org/programs/libxc/down.php?file=4.3.4/libxc-4.3.4.tar.gz 302 redirect to down/4.3.4/libxc-4.3.4.tar.gz resolving server address: down:0 fetch: https://www.tddft.org/programs/libxc/down.php?file=4.3.4/libxc-4.3.4.tar.gz: No address record Fetch tries "down" as the server name of the next hop.
Created attachment 236031 [details] Add support for relative urls in redirect responses RFC 7231 has support for relative urls. I saw this bug report and had to check. I didn't believe it. The attach patch fixes the op's issue, but truly it needs to be tested with all kinds of responses. Additionally, I program in C in a much much different way than the source file's layout. Safe to apply, sure, but it'd be wise for someone else to give it a once over to ensure it conforms to your standards; something someone else can do if they so choose.
Created attachment 236032 [details] Updated patch to support redirected relative urls to fetch. Just added the check to the return of the function .... Hey it's 3am ... sheesh!