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40 lines
791 B
C

#include <stdarg.h>
#include <sys/types.h>
#ifdef __MINGW32__
#include "windows.h"
struct iovec {
LPCVOID iov_base;
DWORD iov_len;
};
#else
#include <sys/uio.h>
#endif
#include "errmsg.h"
#include "str.h"
/* the people who defined stdarg.h need to be taken behind the barn and shot */
int errmsg_cvt(struct iovec* x,const char* message, va_list a) {
int i,j;
j=0;
if (argv0) {
x[0].iov_base=(char*)argv0;
x[0].iov_len=str_len(argv0);
x[1].iov_base=": ";
x[1].iov_len=2;
j=2;
}
x[j].iov_base=(char*)message; x[j].iov_len=str_len(message); ++j;
for (i=0; j<22; ++i) {
const char* t=va_arg(a,const char*);
if (!t) break;
x[j].iov_base=(char*)t;
x[j].iov_len=str_len(t);
++j;
}
x[j].iov_base="\n";
x[j].iov_len=1;
return j+1;
}