tls: Improve certificat saving - sacc - sacc(omys), simple console gopher client
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---
DIR commit 0fce134e1baa2ae47aeb0ee7c091e6c25651bcea
DIR parent 314af1528acc78f62256043cb8a9c81f8f7833b8
HTML Author: Quentin Rameau <quinq@fifth.space>
Date: Fri, 3 May 2024 06:12:10 +0200
tls: Improve certificat saving
While the original code wouldn't pose a problem in practice,
as we're not expecting a server to give us a certificate of over 1GB,
this should make it a tad more robust.
Diffstat:
M io_tls.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
---
DIR diff --git a/io_tls.c b/io_tls.c
@@ -106,6 +106,7 @@ savepem(struct tls *t, char *path)
FILE *f;
const char *s;
size_t ln;
+ int e = 0;
if (path == NULL)
return -1;
@@ -113,11 +114,18 @@ savepem(struct tls *t, char *path)
return -1;
if ((f = fopen(path, "w")) == NULL)
return -1;
- fprintf(f, "%.*s\n", ln, s);
+
+ while (ln > 0)
+ ln = fwrite(s, 1, ln, f);
+
+ if (ferror(f))
+ e = -1;
if (fclose(f) != 0)
- return -1;
+ e = -1;
+ if (e == -1)
+ unlink(path);
- return 0;
+ return e;
}
static char *