[PATCH 1/6] lib: fwts_set: fix API for fwts_set, add fwts_set_int

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

The fwts_set API has the args the wrong way around compared to
fwts_get, so swap these; fortunately it is not being used yet
in fwts, so this won't break anything.  Also add fwts_set_int
to set integer values in /sys or /proc files.  Finally, add
error checking in case the writes to the file fails.

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 src/lib/include/fwts_set.h |  3 ++-
 src/lib/src/fwts_set.c     | 26 +++++++++++++++++++++++---
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/src/lib/include/fwts_set.h b/src/lib/include/fwts_set.h
index 3182fc23..c74fd4c0 100644
--- a/src/lib/include/fwts_set.h
+++ b/src/lib/include/fwts_set.h
@@ -22,6 +22,7 @@
 
 #include <stdio.h>
 
-int fwts_set(const char *text, const char *file);
+int fwts_set(const char *file, const char *text);
+int fwts_set_int(const char *file, const int value);
 
 #endif
diff --git a/src/lib/src/fwts_set.c b/src/lib/src/fwts_set.c
index 08b26663..5e90b239 100644
--- a/src/lib/src/fwts_set.c
+++ b/src/lib/src/fwts_set.c
@@ -27,15 +27,35 @@
  *	write text to a given file, used to set
  *	values in /sys or /proc
  */
-int fwts_set(const char *text, const char *file)
+int fwts_set(const char *file, const char *text)
 {
 	FILE *fp;
+	int ret;
 
 	if ((fp = fopen(file, "w")) == NULL)
 		return FWTS_ERROR;
 
-	fprintf(fp, "%s\n", text);
+	ret = fprintf(fp, "%s\n", text);
 	(void)fclose(fp);
 
-	return FWTS_OK;
+	return (ret < 0) ? FWTS_ERROR : FWTS_OK;
+}
+
+/*
+ *  fwts_set_int()
+ *	write an int to a given file, used to set
+ *	values in /sys or /proc
+ */
+int fwts_set_int(const char *file, const int value)
+{
+	FILE *fp;
+	int ret;
+
+	if ((fp = fopen(file, "w")) == NULL)
+		return FWTS_ERROR;
+
+	ret = fprintf(fp, "%d\n", value);
+	(void)fclose(fp);
+
+	return (ret < 0) ? FWTS_ERROR : FWTS_OK;
 }
-- 
2.17.0