svn 14077 was completely broken and apparently never tested.

[oweals/busybox.git] / libbb / bb_asprintf.c

diff --git a/libbb/bb_asprintf.c b/libbb/bb_asprintf.c
index c0c5cdedafd5c7c1703b1c22b472a8dd81db059a..8658a54087e84411c67416bfb6854ec1ff8b3b44 100644 (file)
--- a/libbb/bb_asprintf.c
+++ b/libbb/bb_asprintf.c
@@ -1,89 +1,24 @@
 /*
-   Copyright (C) 2002 Vladimir Oleynik <dzo@simtreas.ru>
+   Copyright (C) 2002,2005 Vladimir Oleynik <dzo@simtreas.ru>
 */
 
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdarg.h>
+#include "libbb.h"
 
-
-#ifdef TEST
-extern void *xrealloc(void *p, size_t size);
-#else
-#include "libbb.h"      /* busybox source */
-#endif
-
-
-/* Exchange glibc vasprintf - minimize allocate memory version */
-/* libc5 and uclibc have not vasprintf function */
-void bb_vasprintf(char **string_ptr, const char *format, va_list args)
-{
-       int   bs = 128;
-       char  stack_buff[128];
-       char *buff = stack_buff;
-       int   done;
-
-       /* two or more loop, first - calculate memory size only */
-       while(1) {
-               done = vsnprintf (buff, bs, format, args);
-/* Different libc have different interpretation vsnprintf returned value */
-               if(done >= 0) {
-                       if(done < bs && buff != stack_buff) {
-                               /* allocated */
-                               *string_ptr = buff;
-                               return;
-                       } else {
-                               /* true calculate memory size */
-                               bs = done+1;
-                       }
-               } else {
-                       /*
-                        * Old libc. Incrementaly test.
-                        * Exact not minimize allocate memory.
-                        */
-                       bs += 128;
-               }
-               buff = xrealloc((buff == stack_buff ? NULL : buff), bs);
-       }
-}
-
-void bb_asprintf(char **string_ptr, const char *format, ...)
-{
-       va_list p;
-
-       va_start(p, format);
-       bb_vasprintf(string_ptr, format, p);
-       va_end(p);
-}
-
-#ifdef TEST
-int main(int argc, char **argv)
-{
-       char *out_buf;
-       char big_buf[200];
-       int i;
-
-       bb_asprintf(&out_buf, "Hi!\nargc=%d argv[0]=%s\n", argc, argv[0]);
-       printf(out_buf);
-       free(out_buf);
-
-       for(i=0; i < sizeof(big_buf)-1; i++)
-               big_buf[i]='x';
-       big_buf[i]=0;
-       bb_asprintf(&out_buf, "Test Big\n%s\n", big_buf);
-       printf(out_buf);
-       free(out_buf);
-
-       return 0;
-}
-
-void *xrealloc(void *p, size_t size)
+char *bb_xasprintf(const char *format, ...)
 {
-       void *p2 = realloc(p, size);
-       if(p2==0) {
-               fprintf(stderr, "TEST: memory_exhausted\n");
-               exit(1);
-       }
-       return p2;
+       va_list p;
+       int r;
+       char *string_ptr;
+
+       va_start(p, format);
+       r = vasprintf(&string_ptr, format, p);
+       va_end(p);
+
+       if (r < 0) {
+               bb_perror_msg_and_die("bb_xasprintf");
+       }
+       return string_ptr;
 }
-#endif