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utils: add s32 parser

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Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
This commit is contained in:
Hagen Paul Pfeifer 2011-12-20 11:28:46 +00:00 committed by Stephen Hemminger
parent aa38c3eefa
commit 30d10db566
2 changed files with 20 additions and 0 deletions
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1
include/utils.h
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@ -85,6 +85,7 @@ extern int get_time_rtt(unsigned *val, const char *arg, int *raw);
#define get_short get_s16
extern int get_u64(__u64 *val, const char *arg, int base);
extern int get_u32(__u32 *val, const char *arg, int base);
extern int get_s32(__s32 *val, const char *arg, int base);
extern int get_u16(__u16 *val, const char *arg, int base);
extern int get_s16(__s16 *val, const char *arg, int base);
extern int get_u8(__u8 *val, const char *arg, int base);

19
lib/utils.c
View File

@ -25,6 +25,7 @@
#include <linux/pkt_sched.h>
#include <time.h>
#include <sys/time.h>
#include <errno.h>
#include "utils.h"
@ -198,6 +199,24 @@ int get_u8(__u8 *val, const char *arg, int base)
return 0;
}
int get_s32(__s32 *val, const char *arg, int base)
{
long res;
char *ptr;
errno = 0;
if (!arg || !*arg)
return -1;
res = strtol(arg, &ptr, base);
if (ptr == arg || *ptr ||
((res == LONG_MIN || res == LONG_MAX) && errno == ERANGE) ||
res > INT32_MAX || res < INT32_MIN)
return -1;
*val = res;
return 0;
}
int get_s16(__s16 *val, const char *arg, int base)
{
long res;