---- Ben Noordhuis <i...@bnoordhuis.nl> wrote: > On Wed, Jun 20, 2012 at 4:35 PM, <oh...@cox.net> wrote: > > Hi, > > > > I am working on a module, and I get one of the SSL envvars, > > SSL_CLIENT_CERT, using apr_table_get() into a const char *. > > > > The client cert char string returned has the extra beginning line > > (-----BEGIN CERTIFICATE-----) and ending line (-----END CERTIFICATE-----), > > but I need to remove both of those lines for a call that I need to make. > > > > I have to admit, I'm a bit (a lot) rusty with 'C', and I guess I could do > > something like: > > > > strpy(original_cert, original_cert+27); > > > > and then set the ending position to \0 (to terminate the char string > > early), but since with this is a module, and I'm working with a pointer to > > the memory pool, I'm kind of worried that doing stuff like that would mess > > things up (e.g., garbage collection, since the string is now shorter by 'x' > > bytes. > > > > So, from an Apache module development standpoint, what would be the safest > > way to do this (strip a string of chars from the beginning and end)? > > Make a copy with apr_strdup(), then mutate the copy. > > APR has utility functions for manipulating strings, like apr_strtok(). > Have a look at apr_strings.h.
Hi, Thanks. I've been using those, and I can eliminate the beginning line, but how can I eliminate the ending line? It seems that I can't just store a '\0' into the end of the char string. Will apr_cpystrn() automatically terminate the destination char string, i.e., if I do something like: apr_cpystrn(cert_without_ending, cert_string, strlen(cert_string)-10); will the cert_without_ending char string get terminated properly with \0? Jim
