Use fixed-width integer types for long suffixed parameters

Fixes possible truncation on 32-bit archs.

Link: linux-nvme/nvme-cli#330
Signed-off-by: Keith Busch <[email protected]>

Author: Keith Busch

argconfig.c

@@ -285,7 +285,7 @@ int argconfig_parse(int argc, char *argv[], const char *program_desc,
 				goto out;
 			}
 		} else if (s->config_type == CFG_LONG_SUFFIX) {
-			*((long *)value_addr) = suffix_binary_parse(optarg);
+			*((uint64_t *)value_addr) = suffix_binary_parse(optarg);
 			if (errno) {
 				fprintf(stderr,
 					"Expected long suffixed integer argument for '%s' but got '%s'!\n",

suffix.c

@@ -109,11 +109,11 @@ const char *suffix_dbinary_get(double *value)
 	return "";
 }
 
-long long suffix_binary_parse(const char *value)
+uint64_t suffix_binary_parse(const char *value)
 {
 	char *suffix;
 	errno = 0;
-	long long ret = strtoll(value, &suffix, 0);
+	uint64_t ret = strtoll(value, &suffix, 0);
 	if (errno)
 		return 0;
 

suffix.h

@@ -31,9 +31,11 @@
 
 #ifndef __ARGCONFIG_SUFFIX_H__
 
+#include <inttypes.h>
+
 const char *suffix_si_get(double *value);
 const char *suffix_binary_get(long long *value);
 const char *suffix_dbinary_get(double *value);
-long long suffix_binary_parse(const char *value);
+uint64_t suffix_binary_parse(const char *value);
 
 #endif