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/* Written by Kris Maglione <fbsdaemon at gmail dot com> */
/* Public domain */
#include <errno.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <util.h>
#include <fmt.h>
typedef struct VFmt VFmt;
struct VFmt {
const char *fmt;
va_list args;
};
#ifdef VARARGCK
# pragma varargck type "V" VFmt*
#endif
static int
Vfmt(Fmt *f) {
VFmt *vf;
int i;
vf = va_arg(f->args, VFmt*);
i = fmtvprint(f, vf->fmt, vf->args);
return i;
}
void
fatal(const char *fmt, ...) {
VFmt fp;
fmtinstall('V', Vfmt);
fmtinstall('\001', Vfmt);
fp.fmt = fmt;
va_start(fp.args, fmt);
fprint(2, "%s: fatal: %V\n", argv0, &fp);
va_end(fp.args);
exit(1);
}
/* Can't malloc */
static void
mfatal(char *name, uint size) {
const char
couldnot[] = ": fatal: Could not ",
paren[] = "() ",
bytes[] = " bytes\n";
char buf[1024];
char sizestr[8];
int i;
i = sizeof(sizestr);
do {
sizestr[--i] = '0' + (size%10);
size /= 10;
} while(size > 0);
strlcat(buf, argv0, sizeof(buf));
strlcat(buf, couldnot, sizeof(buf));
strlcat(buf, name, sizeof(buf));
strlcat(buf, paren, sizeof(buf));
strlcat(buf, sizestr+i, sizeof(buf));
strlcat(buf, bytes, sizeof(buf));
write(2, buf, strlen(buf));
exit(1);
}
void *
emalloc(uint size) {
void *ret = malloc(size);
if(!ret)
mfatal("malloc", size);
return ret;
}
void *
emallocz(uint size) {
void *ret = emalloc(size);
memset(ret, 0, size);
return ret;
}
void *
erealloc(void *ptr, uint size) {
void *ret = realloc(ptr, size);
if(!ret)
mfatal("realloc", size);
return ret;
}
char *
estrdup(const char *str) {
void *ret = strdup(str);
if(!ret)
mfatal("strdup", strlen(str));
return ret;
}
uint
tokenize(char *res[], uint reslen, char *str, char delim) {
char *s;
uint i;
i = 0;
s = str;
while(i < reslen && *s) {
while(*s == delim)
*(s++) = '\0';
if(*s)
res[i++] = s;
while(*s && *s != delim)
s++;
}
return i;
}
int
max(int a, int b) {
if(a > b)
return a;
return b;
}
int
min(int a, int b) {
if(a < b)
return a;
return b;
}
char *
str_nil(char *s) {
if(s)
return s;
return "<nil>";
}
int
utflcpy(char *to, const char *from, int l) {
char *p;
p = utfecpy(to, to+l, from);
return p-to;
}
uint
strlcat(char *dst, const char *src, uint size) {
const char *s;
char *d;
int n, len;
d = dst;
s = src;
n = size;
while(n-- > 0 && *d != '\0')
d++;
len = n;
while(*s != '\0') {
if(n-- > 0)
*d++ = *s;
s++;
}
if(len > 0)
*d = '\0';
return size - n - 1;
}
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