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#include "util.h"
#include "debug.h"
guint64 util_read_address(char *key) {
char *value_str = getenv(key);
if (value_str == NULL) { return 0; }
if (!g_str_has_prefix(value_str, "0x")) {
FATAL("Invalid address should have 0x prefix: %s=%s\n", key, value_str);
}
char *value_str2 = &value_str[2];
for (char *c = value_str2; *c != '\0'; c++) {
if (!g_ascii_isxdigit(*c)) {
FATAL("Invalid address not formed of hex digits: %s=%s ('%c')\n", key,
value_str, *c);
}
}
guint64 value = g_ascii_strtoull(value_str2, NULL, 16);
if (value == 0) {
FATAL("Invalid address failed hex conversion: %s=%s\n", key, value_str2);
}
return value;
}
guint64 util_read_num(char *key) {
char *value_str = getenv(key);
if (value_str == NULL) { return 0; }
for (char *c = value_str; *c != '\0'; c++) {
if (!g_ascii_isdigit(*c)) {
FATAL("Invalid address not formed of decimal digits: %s=%s\n", key,
value_str);
}
}
guint64 value = g_ascii_strtoull(value_str, NULL, 10);
if (value == 0) {
FATAL("Invalid address failed numeric conversion: %s=%s\n", key, value_str);
}
return value;
}
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