From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 27 Oct 2016 16:15:04 +0200
Return values were not checked from five calls of the function "printf".
This issue was detected also by using the Coccinelle software.
* Add a bit of exception handling there.
* Optimise this function implementation a bit.
- Replace two output calls with the functions "fputs" and "puts".
- Use the preincrement operator for the variable "total".
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
scripts/basic/bin2c.c | 26 ++++++++++++++++----------
1 file changed, 16 insertions(+), 10 deletions(-)
diff --git a/scripts/basic/bin2c.c b/scripts/basic/bin2c.c
index c3d7eef..c6c8860 100644
--- a/scripts/basic/bin2c.c
+++ b/scripts/basic/bin2c.c
@@ -8,29 +8,35 @@
*/
#include <stdio.h>
+#include <errno.h>
int main(int argc, char *argv[])
{
int ch, total = 0;
if (argc > 1)
- printf("const char %s[] %s=\n",
- argv[1], argc > 2 ? argv[2] : "");
+ if (printf("const char %s[] %s=\n",
+ argv[1], argc > 2 ? argv[2] : "") < 16)
+ return errno;
do {
- printf("\t\"");
+ if (fputs("\t\"", stdout) < 0)
+ return errno;
+
while ((ch = getchar()) != EOF) {
- total++;
- printf("\\x%02x", ch);
- if (total % 16 == 0)
+ if (printf("\\x%02x", ch) < 4)
+ return errno;
+ if (++total % 16 == 0)
break;
}
- printf("\"\n");
+
+ if (puts("\"") < 0)
+ return errno;
} while (ch != EOF);
if (argc > 1)
- printf("\t;\n\n#include <linux/types.h>\n\nconst size_t %s_size = %d;\n",
- argv[1], total);
-
+ if (printf("\t;\n\n#include <linux/types.h>\n\nconst size_t %s_size = %d;\n",
+ argv[1], total) < 54)
+ return errno;
return 0;
}
--
2.10.1
--
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