XPost: comp.os.linux.misc, alt.folklore.computers   
   From: invalid@invalid.invalid   
      
   scott@slp53.sl.home (Scott Lurndal) writes:   
   > rbowman  writes:   
   >>On Tue, 06 Jan 2026 18:57:04 GMT, Charlie Gibbs wrote:   
   >>> Inspired by readline(), I've written my own replacements for strcpy()   
   >>> and strcat() that do much the same thing.   
   >>   
   >>To quote from the strcat man page "Read about Shlemiel the painter.".   
   >>stpcpy() was a late arrival and I never used it. I do use a similar   
   >>construct   
   >>   
   >>char buf[1024];   
   >>char* ptr = buf;   
   >>   
   >>ptr += sprintf(ptr, "%s", "some stuff");   
   >>ptr += sprintf(ptr, "%s", " some more stuff");   
   >   
   > I would suggest using snprintf instead of sprintf   
   > to prevent accesses beyond (buf + 1024).  A bit   
   > more complicated if you want to know that the   
   > result was truncated, since you need to adjust the   
   > remaining length based on the return value from   
   > the prior snprintf, as well as checking for   
   > overflow.   
      
   This is calling out for a wrapping up in a function or two that can do   
   the book-keeping automatically (and use an expandable buffer, if the use   
   case demands).   
      
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