* userv - lib.c
* useful utility routines, used in daemon, but not very dependent on it
*
- * Copyright (C)1996-1997 Ian Jackson
+ * Copyright (C)1996-1997,1999 Ian Jackson
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
+#include <assert.h>
+#include <sys/types.h>
#include "config.h"
+#include "common.h"
#include "lib.h"
char *xstrcat3save(const char *a, const char *b, const char *c) {
return p;
}
-void makeroom(char **buffer, int *size, int needed) {
- if (*size >= needed) return;
+int makeroom(char **buffer, int *size, int needed) {
+ if (needed > MAX_GENERAL_STRING) return -1;
+ if (*size >= needed) return 0;
*buffer= xrealloc(*buffer,needed);
*size= needed;
+ return 0;
}
void vsnyprintf(char *buffer, size_t size, const char *fmt, va_list al) {
vsnytprintfcat(buffer,size,fmt,al);
va_end(al);
}
+
+#ifndef HAVE_SETENV
+int setenv(const char *name, const char *value, int overwrite) {
+ static char *buffer= 0;
+ static int avail= 0;
+
+ int r;
+
+ assert(overwrite==1);
+ r= makeroom(&buffer,&avail,strlen(name)+strlen(value)+2);
+ if (r) { errno= EINVAL; return -1; }
+
+ sprintf(buffer,"%s=%s",name,value);
+ return putenv(buffer);
+}
+#endif /* HAVE_SETENV */