.bin writer: ensure data is successfully written

Noam Preil · Noam Preil · commit 4a9adbdaea8f · 2020-09-25T23:49:02.000-04:00
diff --git a/linker/bin.c b/linker/bin.c
@@ -3,6 +3,5 @@
 #include <stdint.h>
 
 int output_bin(FILE *f, uint8_t *data, int data_length) {
-	fwrite(data, sizeof(uint8_t), data_length, f);
-	return 0;
+	return fwrite(data, sizeof(uint8_t), data_length, f) == (unsigned)data_length ? 0 : 1;
 }

Original file line number	Diff line number	Diff line change
`@@ -3,6 +3,5 @@`
`3`	`3`	`#include <stdint.h>`
`4`	`4`
`5`	`5`	`int output_bin(FILE f, uint8_t data, int data_length) {`
`6`		`- fwrite(data, sizeof(uint8_t), data_length, f);`
`7`		`- return 0;`
	`6`	`+ return fwrite(data, sizeof(uint8_t), data_length, f) == (unsigned)data_length ? 0 : 1;`
`8`	`7`	`}`