[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/libbb/xatonum_template.c b/ap/app/busybox/src/libbb/xatonum_template.c
new file mode 100644
index 0000000..e047198
--- /dev/null
+++ b/ap/app/busybox/src/libbb/xatonum_template.c
@@ -0,0 +1,195 @@
+/*
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+/*
+You need to define the following (example):
+
+#define type long
+#define xstrtou(rest) xstrtoul##rest
+#define xstrto(rest) xstrtol##rest
+#define xatou(rest) xatoul##rest
+#define xato(rest) xatol##rest
+#define XSTR_UTYPE_MAX ULONG_MAX
+#define XSTR_TYPE_MAX LONG_MAX
+#define XSTR_TYPE_MIN LONG_MIN
+#define XSTR_STRTOU strtoul
+*/
+
+unsigned type FAST_FUNC xstrtou(_range_sfx)(const char *numstr, int base,
+ unsigned type lower,
+ unsigned type upper,
+ const struct suffix_mult *suffixes)
+{
+ unsigned type r;
+ int old_errno;
+ char *e;
+
+ /* Disallow '-' and any leading whitespace. */
+ if (*numstr == '-' || *numstr == '+' || isspace(*numstr))
+ goto inval;
+
+ /* Since this is a lib function, we're not allowed to reset errno to 0.
+ * Doing so could break an app that is deferring checking of errno.
+ * So, save the old value so that we can restore it if successful. */
+ old_errno = errno;
+ errno = 0;
+ r = XSTR_STRTOU(numstr, &e, base);
+ /* Do the initial validity check. Note: The standards do not
+ * guarantee that errno is set if no digits were found. So we
+ * must test for this explicitly. */
+ if (errno || numstr == e)
+ goto inval; /* error / no digits / illegal trailing chars */
+
+ errno = old_errno; /* Ok. So restore errno. */
+
+ /* Do optional suffix parsing. Allow 'empty' suffix tables.
+ * Note that we also allow nul suffixes with associated multipliers,
+ * to allow for scaling of the numstr by some default multiplier. */
+ if (suffixes) {
+ while (suffixes->mult) {
+ if (strcmp(suffixes->suffix, e) == 0) {
+ if (XSTR_UTYPE_MAX / suffixes->mult < r)
+ goto range; /* overflow! */
+ r *= suffixes->mult;
+ goto chk_range;
+ }
+ ++suffixes;
+ }
+ }
+
+ /* Note: trailing space is an error.
+ * It would be easy enough to allow though if desired. */
+ if (*e)
+ goto inval;
+ chk_range:
+ /* Finally, check for range limits. */
+ if (r >= lower && r <= upper)
+ return r;
+ range:
+ bb_error_msg_and_die("number %s is not in %llu..%llu range",
+ numstr, (unsigned long long)lower,
+ (unsigned long long)upper);
+ inval:
+ bb_error_msg_and_die("invalid number '%s'", numstr);
+}
+
+unsigned type FAST_FUNC xstrtou(_range)(const char *numstr, int base,
+ unsigned type lower,
+ unsigned type upper)
+{
+ return xstrtou(_range_sfx)(numstr, base, lower, upper, NULL);
+}
+
+unsigned type FAST_FUNC xstrtou(_sfx)(const char *numstr, int base,
+ const struct suffix_mult *suffixes)
+{
+ return xstrtou(_range_sfx)(numstr, base, 0, XSTR_UTYPE_MAX, suffixes);
+}
+
+unsigned type FAST_FUNC xstrtou()(const char *numstr, int base)
+{
+ return xstrtou(_range_sfx)(numstr, base, 0, XSTR_UTYPE_MAX, NULL);
+}
+
+unsigned type FAST_FUNC xatou(_range_sfx)(const char *numstr,
+ unsigned type lower,
+ unsigned type upper,
+ const struct suffix_mult *suffixes)
+{
+ return xstrtou(_range_sfx)(numstr, 10, lower, upper, suffixes);
+}
+
+unsigned type FAST_FUNC xatou(_range)(const char *numstr,
+ unsigned type lower,
+ unsigned type upper)
+{
+ return xstrtou(_range_sfx)(numstr, 10, lower, upper, NULL);
+}
+
+unsigned type FAST_FUNC xatou(_sfx)(const char *numstr,
+ const struct suffix_mult *suffixes)
+{
+ return xstrtou(_range_sfx)(numstr, 10, 0, XSTR_UTYPE_MAX, suffixes);
+}
+
+unsigned type FAST_FUNC xatou()(const char *numstr)
+{
+ return xatou(_sfx)(numstr, NULL);
+}
+
+/* Signed ones */
+
+type FAST_FUNC xstrto(_range_sfx)(const char *numstr, int base,
+ type lower,
+ type upper,
+ const struct suffix_mult *suffixes)
+{
+ unsigned type u = XSTR_TYPE_MAX;
+ type r;
+ const char *p = numstr;
+
+ /* NB: if you'll decide to disallow '+':
+ * at least renice applet needs to allow it */
+ if (p[0] == '+' || p[0] == '-') {
+ ++p;
+ if (p[0] == '-')
+ ++u; /* = <type>_MIN (01111... + 1 == 10000...) */
+ }
+
+ r = xstrtou(_range_sfx)(p, base, 0, u, suffixes);
+
+ if (*numstr == '-') {
+ r = -r;
+ }
+
+ if (r < lower || r > upper) {
+ bb_error_msg_and_die("number %s is not in %lld..%lld range",
+ numstr, (long long)lower, (long long)upper);
+ }
+
+ return r;
+}
+
+type FAST_FUNC xstrto(_range)(const char *numstr, int base, type lower, type upper)
+{
+ return xstrto(_range_sfx)(numstr, base, lower, upper, NULL);
+}
+
+type FAST_FUNC xstrto()(const char *numstr, int base)
+{
+ return xstrto(_range_sfx)(numstr, base, XSTR_TYPE_MIN, XSTR_TYPE_MAX, NULL);
+}
+
+type FAST_FUNC xato(_range_sfx)(const char *numstr,
+ type lower,
+ type upper,
+ const struct suffix_mult *suffixes)
+{
+ return xstrto(_range_sfx)(numstr, 10, lower, upper, suffixes);
+}
+
+type FAST_FUNC xato(_range)(const char *numstr, type lower, type upper)
+{
+ return xstrto(_range_sfx)(numstr, 10, lower, upper, NULL);
+}
+
+type FAST_FUNC xato(_sfx)(const char *numstr, const struct suffix_mult *suffixes)
+{
+ return xstrto(_range_sfx)(numstr, 10, XSTR_TYPE_MIN, XSTR_TYPE_MAX, suffixes);
+}
+
+type FAST_FUNC xato()(const char *numstr)
+{
+ return xstrto(_range_sfx)(numstr, 10, XSTR_TYPE_MIN, XSTR_TYPE_MAX, NULL);
+}
+
+#undef type
+#undef xstrtou
+#undef xstrto
+#undef xatou
+#undef xato
+#undef XSTR_UTYPE_MAX
+#undef XSTR_TYPE_MAX
+#undef XSTR_TYPE_MIN
+#undef XSTR_STRTOU