diff options
| author | Jim Meyering <jim@meyering.net> | 1999-11-28 19:59:18 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 1999-11-28 19:59:18 +0000 |
| commit | 062906c83a683ce8ff13b4f44d4fd69e9eb54673 (patch) | |
| tree | 93b088e5f841fa7519cd8558e88c833eb6f37500 /src/sleep.c | |
| parent | 2c3fa56cefe8213d6a2827363a3cb4292b654515 (diff) | |
| download | coreutils-062906c83a683ce8ff13b4f44d4fd69e9eb54673.tar.xz | |
Don't include math.h or float.h.
Don't use DBL_MAX.
Use TIME_T_MAX instead.
Diffstat (limited to 'src/sleep.c')
| -rw-r--r-- | src/sleep.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/src/sleep.c b/src/sleep.c index ee57cb826..2122f3f1e 100644 --- a/src/sleep.c +++ b/src/sleep.c @@ -17,17 +17,11 @@ #include <config.h> #include <stdio.h> +#include <assert.h> #include <sys/types.h> #include <time.h> #include <getopt.h> -#include <math.h> -#if HAVE_FLOAT_H -# include <float.h> -#else -# define DBL_MAX 1.7976931348623159e+308 -#endif - #ifndef TIME_T_MAX # define TIME_T_MAX TYPE_MAXIMUM (time_t) #endif @@ -81,6 +75,8 @@ apply_suffix (double *s, char suffix_char) { unsigned int multiplier; + assert (*s <= TIME_T_MAX); + switch (suffix_char) { case 0: @@ -100,7 +96,7 @@ apply_suffix (double *s, char suffix_char) multiplier = 0; } - if (multiplier == 0 || *s > DBL_MAX / multiplier) + if (multiplier == 0) return 1; *s *= multiplier; @@ -151,9 +147,11 @@ main (int argc, char **argv) if (xstrtod (argv[i], &p, &s) /* No negative intervals. */ || s < 0 + /* S must fit in a time_t. */ + || s > TIME_T_MAX /* No extra chars after the number and an optional s,m,h,d char. */ || (*p && *(p+1)) - /* Update S based on suffix char. */ + /* Check any suffix char and update S based on the suffix. */ || apply_suffix (&s, *p) /* Make sure the sum fits in a time_t. */ || (seconds += s) > TIME_T_MAX |