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Don't pass negative values into <ctype.h> functions on machines

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with signed chars.
This commit is contained in:
Tim J. Robbins 2004-07-15 07:33:56 +00:00
parent ee6b783c62
commit fe1ba53cff
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=132193
1 changed files with 3 additions and 3 deletions
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6
usr.bin/killall/killall.c
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@ -67,7 +67,7 @@ upper(const char *str)
strncpy(buf, str, sizeof(buf));
buf[sizeof(buf) - 1] = '\0';
for (s = buf; *s; s++)
*s = toupper(*s);
*s = toupper((unsigned char)*s);
return buf;
}
@ -206,7 +206,7 @@ main(int ac, char **av)
zflag++;
break;
default:
if (isalpha(**av)) {
if (isalpha((unsigned char)**av)) {
if (strncasecmp(*av, "sig", 3) == 0)
*av += 3;
for (sig = NSIG, p = sys_signame + 1;
@ -217,7 +217,7 @@ main(int ac, char **av)
}
if (!sig)
nosig(*av);
} else if (isdigit(**av)) {
} else if (isdigit((unsigned char)**av)) {
sig = strtol(*av, &ep, 10);
if (!*av || *ep)
errx(1, "illegal signal number: %s", *av);