diff options
Diffstat (limited to 'mdk-stage1/dietlibc/lib/strtol.c')
-rw-r--r-- | mdk-stage1/dietlibc/lib/strtol.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/mdk-stage1/dietlibc/lib/strtol.c b/mdk-stage1/dietlibc/lib/strtol.c index ead89f408..2624aca0e 100644 --- a/mdk-stage1/dietlibc/lib/strtol.c +++ b/mdk-stage1/dietlibc/lib/strtol.c @@ -1,7 +1,10 @@ #include <ctype.h> +#include "dietfeatures.h" +#include <errno.h> +#include <limits.h> +#include <stdlib.h> -extern unsigned long int strtoul(const char *nptr, char **endptr, int base); - +#define ABS_LONG_MIN 2147483648UL long int strtol(const char *nptr, char **endptr, int base) { int neg=0; @@ -9,7 +12,15 @@ long int strtol(const char *nptr, char **endptr, int base) while(isspace(*nptr)) nptr++; - if (*nptr == '-' && isdigit(nptr[1])) { neg=-1; nptr++; } + if (*nptr == '-') { neg=-1; ++nptr; } v=strtoul(nptr,endptr,base); + if (v>=ABS_LONG_MIN) { + if (v==ABS_LONG_MIN && neg) { + errno=0; + return v; + } + errno=ERANGE; + return (neg?LONG_MIN:LONG_MAX); + } return (neg?-v:v); } |