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authorManuel Novoa III <mjn3@codepoet.org>2002-09-12 14:52:26 +0000
committerManuel Novoa III <mjn3@codepoet.org>2002-09-12 14:52:26 +0000
commit4d0884a1eaefb7af31f8039f3aa9128362535716 (patch)
treea685c539b63b81ee6689d9738c588555dc4ecb44 /libbb/bb_asprintf.c
parent7829b8d067225e6ab90ba289b2c9375349204acd (diff)
downloadbusybox-4d0884a1eaefb7af31f8039f3aa9128362535716.tar.gz
Apply vodz's last_patch53.gz (bb_asprintf.c) and last_patch54.gz
(arith.c).
Diffstat (limited to 'libbb/bb_asprintf.c')
-rw-r--r--libbb/bb_asprintf.c74
1 files changed, 3 insertions, 71 deletions
diff --git a/libbb/bb_asprintf.c b/libbb/bb_asprintf.c
index c0c5cdeda..9a71be7f5 100644
--- a/libbb/bb_asprintf.c
+++ b/libbb/bb_asprintf.c
@@ -7,83 +7,15 @@
#include <stdarg.h>
-#ifdef TEST
-extern void *xrealloc(void *p, size_t size);
-#else
-#include "libbb.h" /* busybox source */
-#endif
+#include "libbb.h"
-/* 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);
+ if(vasprintf(string_ptr, format, p)<0)
+ error_msg_and_die(memory_exhausted);
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)
-{
- void *p2 = realloc(p, size);
- if(p2==0) {
- fprintf(stderr, "TEST: memory_exhausted\n");
- exit(1);
- }
- return p2;
-}
-#endif