[pkg-opensc-commit] [opensc] 126/295: libopensc: allow setting driver via OPENSC_DRIVER environment variable (#882)

[Eric Dorland]

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commit c7007b0bdc28858f0fad678cf70f2a90cf3ca7d7
Author: Leonardo Brondani Schenkel <leonardo at schenkel.net>
Date:   Sun Nov 20 19:38:59 2016 +0100

    libopensc: allow setting driver via OPENSC_DRIVER environment variable (#882)
---
 src/libopensc/ctx.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/libopensc/ctx.c b/src/libopensc/ctx.c
index 2445c4b..a9e7d4c 100644
--- a/src/libopensc/ctx.c
+++ b/src/libopensc/ctx.c
@@ -792,6 +792,13 @@ int sc_context_create(sc_context_t **ctx_out, const sc_context_param_t *parm)
 
 	load_card_drivers(ctx, &opts);
 	load_card_atrs(ctx);
+
+	if (!opts.forced_card_driver) {
+		char *driver = getenv("OPENSC_DRIVER");
+		if(driver) {
+			opts.forced_card_driver = strdup(driver);
+		}
+	}
 	if (opts.forced_card_driver) {
 		/* FIXME: check return value? */
 		sc_set_card_driver(ctx, opts.forced_card_driver);

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