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-rw-r--r--lib/lib.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/lib.c b/lib/lib.c
index 95ba1216..ad84dff5 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -422,8 +422,10 @@ long atolx(char *c)
char *suffixes="kmgtpe", *end;
long val = strtol(c, &c, 0);
- end = strchr(suffixes, tolower(*c));
- if (end) val *= 1024<<((end-suffixes)*10);
+ if (*c) {
+ end = strchr(suffixes, tolower(*c));
+ if (end) val *= 1024L<<((end-suffixes)*10);
+ }
return val;
}