For example I've allocated memory for char *str:

str = ngx_pnalloc(r->pool, len1);

Then I've added some data to "str":

ngx_sprintf(str, "abc");

How should I reallocate this memory? Should I use:

str = ngx_pnalloc(r->pool, len2);

? And I would like to keep the str's "abc" data as well.

Posted at Nginx Forum: 
http://forum.nginx.org/read.php?2,254851,254851#msg-254851

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