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#include <_proc.h>
#include <bits/panic.h>
#include <camellia.h>
#include <camellia/syscalls.h>
#include <ctype.h>
#include <errno.h>
#include <string.h>
_Noreturn void abort(void) {
_sys_exit(1);
}
static const char *progname;
const char *getprogname(void) {
return progname;
}
void setprogname(const char *pg) {
progname = pg;
}
void setproctitle(const char *fmt, ...) {
if (!fmt) {
strcpy(_libc_psdata, progname);
return;
}
sprintf(_libc_psdata, "%s: ", progname);
va_list argp;
va_start(argp, fmt);
vsnprintf(_libc_psdata + strlen(_libc_psdata), 128, fmt, argp);
va_end(argp);
}
int mkstemp(char *template) {
// TODO randomize template
hid_t h = camellia_open(template, OPEN_CREATE | OPEN_RW);
if (h < 0) {
errno = -h;
return -1;
}
// TODO truncate
return h;
}
// TODO process env
char *getenv(const char *name) {
(void)name;
return NULL;
}
// TODO system()
int system(const char *cmd) {
(void)cmd;
errno = ENOSYS;
return -1;
}
int abs(int i) {
return i < 0 ? -i : i;
}
int atoi(const char *s) {
return strtol(s, NULL, 10);
}
double atof(const char *s) {
(void)s;
__libc_panic("unimplemented");
}
static unsigned long long
strton(const char *restrict s, char **restrict end, int base, int *sign)
{
long res = 0;
while (isspace(*s)) s++;
if (sign) *sign = 1;
if (*s == '+') {
s++;
} else if (*s == '-') {
s++;
if (sign) *sign = -1;
}
if (base == 0) {
if (*s == '0') {
s++;
if (*s == 'x' || *s == 'X') {
s++;
base = 16;
} else {
base = 8;
}
} else {
base = 10;
}
}
for (;;) {
unsigned char digit = *s;
if ('0' <= digit && digit <= '9') digit -= '0';
else if ('a' <= digit && digit <= 'z') digit -= 'a' - 10;
else if ('A' <= digit && digit <= 'Z') digit -= 'A' - 10;
else break;
if (digit >= base) break;
// TODO overflow check
res *= base;
res += digit;
s++;
}
if (end) *end = (void*)s;
return res;
}
long strtol(const char *restrict s, char **restrict end, int base) {
int sign;
long n = strton(s, end, base, &sign);
return n * sign;
}
unsigned long strtoul(const char *restrict s, char **restrict end, int base) {
return strton(s, end, base, NULL);
}
unsigned long long strtoull(const char *restrict s, char **restrict end, int base) {
return strton(s, end, base, NULL);
}
double strtod(const char *restrict s, char **restrict end) {
(void)s; (void)end;
__libc_panic("unimplemented");
}
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