diff options
Diffstat (limited to 'src/blackbody.c')
| -rw-r--r-- | src/blackbody.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/blackbody.c b/src/blackbody.c index 8bb5873..1e06fb9 100644 --- a/src/blackbody.c +++ b/src/blackbody.c @@ -125,13 +125,13 @@ get_colour(int fd, int temp, double *r, double *g, double *b) * unencodeable. */ if (temp > HIGHEST) temp = HIGHEST; /* Things do not glow below 1000 K. Yes, fire is hot! */ - if (temp < LOWEST) return EDOM, -1; + if (temp < LOWEST) return errno = EDOM, -1; /* Read table. */ offset = ((off_t)temp - LOWEST) / DELTA; offset *= (off_t)(5 * sizeof(double)); errno = 0; - if (pread(fd, values, sizeof(values), offset) < sizeof(values)) + if (pread(fd, values, sizeof(values), offset) < (ssize_t)sizeof(values)) return -1; /* Get colour. */ |