wix-on-linux/dupstr.c
Simon Tatham 48919caa7b Move dupcat out into its own file, and add dupstr.
Also a handy #define to replace all those tedious castings of NULL.
2017-05-18 07:10:17 +01:00

35 lines
615 B
C

#include <stdarg.h>
#include <string.h>
#include "memory.h"
#include "dupstr.h"
char *dupcat(const char *str, ...)
{
va_list ap;
const char *p;
char *out, *outp;
size_t len;
len = 1;
va_start(ap, str);
for (p = str; p; p = va_arg(ap, const char *))
len += strlen(p);
va_end(ap);
out = snewn(len, char);
outp = out;
va_start(ap, str);
for (p = str; p; p = va_arg(ap, const char *)) {
strcpy(outp, p);
outp += strlen(p);
}
va_end(ap);
return out;
}
char *dupstr(const char *str)
{
return dupcat(str, (const char *)NULL);
}