diff options
| -rw-r--r-- | src/internal/floatscan.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/internal/floatscan.c b/src/internal/floatscan.c index bba5753b..08251213 100644 --- a/src/internal/floatscan.c +++ b/src/internal/floatscan.c @@ -414,7 +414,7 @@ static long double hexfloat(FILE *f, int bits, int emin, int sign, int pok) long double __floatscan(FILE *f, int prec, int pok) { int sign = 1; - int i; + size_t i; int bits; int emin; int c; @@ -455,6 +455,24 @@ long double __floatscan(FILE *f, int prec, int pok) if (!i) for (i=0; i<3 && (c|32)=="nan"[i]; i++) if (i<2) c = shgetc(f); if (i==3) { + if (shgetc(f) != '(') { + shunget(f); + return NAN; + } + for (i=1; ; i++) { + c = shgetc(f); + if (c-'0'<10U || c-'A'<26U || c-'a'<26U || c=='_') + continue; + if (c==')') return NAN; + shunget(f); + if (!pok) { + errno = EINVAL; + shlim(f, 0); + return 0; + } + while (i--) shunget(f); + return NAN; + } return NAN; } |