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Use strtonum instead of atoi.

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This commit is contained in:
nicm
2024-08-26 13:02:15 +00:00
parent 31b6c9356c
commit 2d1e93447e
3 changed files with 32 additions and 24 deletions
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14
colour.c
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@ -942,13 +942,17 @@ colour_byname(const char *name)
{ "yellow3", 0xcdcd00 },
{ "yellow4", 0x8b8b00 }
};
u_int i;
int c;
u_int i;
int c;
const char *errstr;
if (strncmp(name, "grey", 4) == 0 || strncmp(name, "gray", 4) == 0) {
if (!isdigit((u_char)name[4]))
return (0xbebebe|COLOUR_FLAG_RGB);
c = round(2.55 * atoi(name + 4));
if (name[4] == '\0')
return (-1);
c = strtonum(name + 4, 0, 100, &errstr);
if (errstr != NULL)
return (-1);
c = round(2.55 * c);
if (c < 0 || c > 255)
return (-1);
return (colour_join_rgb(c, c, c));