diff mbox series

[RFC,v7] ell/term: Return error on writes if the output descriptor is invalid.

Message ID 20240404233826.3466674-7-gerickson@nuovations.com (mailing list archive)
State New
Headers show
Series [RFC,v7] ell/term: Return error on writes if the output descriptor is invalid. | expand

Checks

Context Check Description
tedd_an/pre-ci_am fail error: ell/term.c: does not exist in index hint: Use 'git am --show-current-patch' to see the failed patch

Commit Message

Grant Erickson April 4, 2024, 11:38 p.m. UTC 
Returns -EBADF for 'putnstr' and 'vdprintf' if the output descriptor
for the terminal is invalid.
---
 ell/term.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/ell/term.c b/ell/term.c
index c867b240090c..7ec92476e14e 100644
--- a/ell/term.c
+++ b/ell/term.c
@@ -391,6 +391,9 @@  LIB_EXPORT int l_term_putnstr(struct l_term *term, const char *str, size_t n)
 	if (!term)
 		return -EINVAL;
 
+	if (term->out_fd < 0)
+		return -EBADF;
+
 	res = write(term->out_fd, str, n);
 	if (res < 0)
 		return -errno;
@@ -432,6 +435,9 @@  LIB_EXPORT int l_term_vprint(struct l_term *term, const char *str, va_list ap)
 	if (!term || !str)
 		return -EINVAL;
 
+	if (term->out_fd < 0)
+		return -EBADF;
+
 	if (vdprintf(term->out_fd, str, ap) < 0)
 		return -errno;