[LEDE-DEV] [PATCH 3/4] otrx: print and return errno if fopen fails

[Rafał Miłecki]

From: Rafał Miłecki <rafal at milecki.pl>

Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
---
 package/utils/otrx/src/otrx.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/package/utils/otrx/src/otrx.c b/package/utils/otrx/src/otrx.c
index 0d99cd39e3..1c3ffd915b 100644
--- a/package/utils/otrx/src/otrx.c
+++ b/package/utils/otrx/src/otrx.c
@@ -170,8 +170,8 @@ static int otrx_check(int argc, char **argv) {
 
 	trx = fopen(trx_path, "r");
 	if (!trx) {
-		fprintf(stderr, "Couldn't open %s\n", trx_path);
-		err = -EACCES;
+		err = -errno;
+		fprintf(stderr, "Couldn't open %s: %d\n", trx_path, err);
 		goto out;
 	}
 
@@ -233,11 +233,13 @@ static ssize_t otrx_create_append_file(FILE *trx, const char *in_path) {
 	size_t bytes;
 	ssize_t length = 0;
 	uint8_t buf[1024];
+	int err;
 
 	in = fopen(in_path, "r");
 	if (!in) {
-		fprintf(stderr, "Couldn't open %s\n", in_path);
-		return -EACCES;
+		err = -errno;
+		fprintf(stderr, "Couldn't open %s: %d\n", in_path, err);
+		return err;
 	}
 
 	while ((bytes = fread(buf, 1, sizeof(buf), in)) > 0) {
@@ -333,8 +335,8 @@ static int otrx_create(int argc, char **argv) {
 
 	trx = fopen(trx_path, "w+");
 	if (!trx) {
-		fprintf(stderr, "Couldn't open %s\n", trx_path);
-		err = -EACCES;
+		err = -errno;
+		fprintf(stderr, "Couldn't open %s: %d\n", trx_path, err);
 		goto out;
 	}
 	fseek(trx, curr_offset, SEEK_SET);
@@ -449,8 +451,8 @@ static int otrx_extract_copy(FILE *trx, size_t offset, size_t length, char *out_
 
 	out = fopen(out_path, "w");
 	if (!out) {
-		fprintf(stderr, "Couldn't open %s\n", out_path);
-		err = -EACCES;
+		err = -errno;
+		fprintf(stderr, "Couldn't open %s: %d\n", out_path, err);
 		goto out;
 	}
 
@@ -505,8 +507,8 @@ static int otrx_extract(int argc, char **argv) {
 
 	trx = fopen(trx_path, "r");
 	if (!trx) {
-		fprintf(stderr, "Couldn't open %s\n", trx_path);
-		err = -EACCES;
+		err = -errno;
+		fprintf(stderr, "Couldn't open %s: %d\n", trx_path, err);
 		goto out;
 	}
 
-- 
2.11.0