*/
__must_check __malloc char *para_homedir(void)
{
- char *h = getenv("HOME");
- return para_strdup(h? h : "/tmp");
+ struct passwd *pw = getpwuid(getuid());
+ return para_strdup(pw? pw->pw_dir : "/tmp");
}
/**
}
return ret;
}
+
+#ifndef LLONG_MAX
+#define LLONG_MAX (1 << (sizeof(long) - 1))
+#endif
+#ifndef LLONG_MIN
+#define LLONG_MIN (-LLONG_MAX - 1LL)
+#endif
+
+/**
+ * Convert a string to a 64-bit signed integer value.
+ *
+ * \param str The string to be converted.
+ * \param value Result pointer.
+ *
+ * \return Positive on success, negative on errors.
+ *
+ * \sa para_atoi32(), strtol(3), atoi(3).
+ */
+int para_atoi64(const char *str, int64_t *value)
+{
+ char *endptr;
+ long long tmp;
+
+ errno = 0; /* To distinguish success/failure after call */
+ tmp = strtoll(str, &endptr, 10);
+ if (errno == ERANGE && (tmp == LLONG_MAX || tmp == LLONG_MIN))
+ return -E_ATOI_OVERFLOW;
+ if (errno != 0 && tmp == 0) /* other error */
+ return -E_STRTOLL;
+ if (endptr == str)
+ return -E_ATOI_NO_DIGITS;
+ if (*endptr != '\0') /* Further characters after number */
+ return -E_ATOI_JUNK_AT_END;
+ *value = tmp;
+ return 1;
+}
+
+/**
+ * Convert a string to a 32-bit signed integer value.
+ *
+ * \param str The string to be converted.
+ * \param value Result pointer.
+ *
+ * \return Positive on success, negative on errors.
+ *
+ * \sa para_atoi64().
+*/
+int para_atoi32(const char *str, int32_t *value)
+{
+ int64_t tmp;
+ int ret;
+ const int32_t max = 2147483647;
+
+ ret = para_atoi64(str, &tmp);
+ if (ret < 0)
+ return ret;
+ if (tmp > max || tmp < -max - 1)
+ return -E_ATOI_OVERFLOW;
+ *value = tmp;
+ return 1;
+}