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-rw-r--r--shell/ash.c36
-rw-r--r--shell/hush.c10
2 files changed, 21 insertions, 25 deletions
diff --git a/shell/ash.c b/shell/ash.c
index b34dcc149..2669157bc 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -12814,7 +12814,7 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
}
static int FAST_FUNC
-umaskcmd(int argc UNUSED_PARAM, char **argv)
+umaskcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
{
static const char permuser[3] ALIGN1 = "ugo";
static const char permmode[3] ALIGN1 = "rwx";
@@ -12824,9 +12824,6 @@ umaskcmd(int argc UNUSED_PARAM, char **argv)
S_IROTH, S_IWOTH, S_IXOTH
};
- /* TODO: use bb_parse_mode() instead */
-
- char *ap;
mode_t mask;
int i;
int symbolic_mode = 0;
@@ -12840,8 +12837,7 @@ umaskcmd(int argc UNUSED_PARAM, char **argv)
umask(mask);
INT_ON;
- ap = *argptr;
- if (ap == NULL) {
+ if (*argptr == NULL) {
if (symbolic_mode) {
char buf[18];
char *p = buf;
@@ -12858,27 +12854,23 @@ umaskcmd(int argc UNUSED_PARAM, char **argv)
}
*p++ = ',';
}
- *--p = 0;
+ *--p = '\0';
puts(buf);
} else {
out1fmt("%.4o\n", mask);
}
} else {
- if (isdigit((unsigned char) *ap)) {
- mask = 0;
- do {
- if (*ap >= '8' || *ap < '0')
- ash_msg_and_raise_error(msg_illnum, argv[1]);
- mask = (mask << 3) + (*ap - '0');
- } while (*++ap != '\0');
- umask(mask);
- } else {
- mask = ~mask & 0777;
- if (!bb_parse_mode(ap, &mask)) {
- ash_msg_and_raise_error("illegal mode: %s", ap);
- }
- umask(~mask & 0777);
- }
+ char *modestr = *argptr;
+ /* numeric umasks are taken as-is */
+ /* symbolic umasks are inverted: "umask a=rx" calls umask(222) */
+ if (!isdigit(modestr[0]))
+ mask ^= 0777;
+ if (!bb_parse_mode(modestr, &mask) || (unsigned)mask > 0777) {
+ ash_msg_and_raise_error("illegal mode: %s", modestr);
+ }
+ if (!isdigit(modestr[0]))
+ mask ^= 0777;
+ umask(mask);
}
return 0;
}
diff --git a/shell/hush.c b/shell/hush.c
index 752080a64..8b8d5fc8b 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -8970,10 +8970,14 @@ static int FAST_FUNC builtin_umask(char **argv)
if (argv[0]) {
mode_t old_mask = mask;
- mask ^= 0777;
+ /* numeric umasks are taken as-is */
+ /* symbolic umasks are inverted: "umask a=rx" calls umask(222) */
+ if (!isdigit(argv[0][0]))
+ mask ^= 0777;
rc = bb_parse_mode(argv[0], &mask);
- mask ^= 0777;
- if (rc == 0) {
+ if (!isdigit(argv[0][0]))
+ mask ^= 0777;
+ if (rc == 0 || (unsigned)mask > 0777) {
mask = old_mask;
/* bash messages:
* bash: umask: 'q': invalid symbolic mode operator