skalibs

Mirror/fork of https://skarnet.org/software/skalibs/
git clone https://ccx.te2000.cz/git/skalibs
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filecopy_suffix.c (580B)

      1 /* ISC license. */
      2 
      3 #include <string.h>
      4 #include <errno.h>
      5 #include <unistd.h>
      6 #include <stdio.h>
      7 #include <skalibs/djbunix.h>
      8 
      9 int filecopy_suffix (char const *src, char const *dst, unsigned int mode, char const *suffix)
     10 {
     11   size_t dstlen = strlen(dst) ;
     12   size_t suffixlen = strlen(suffix) ;
     13   char tmp[dstlen + suffixlen + 1] ;
     14   memcpy(tmp, dst, dstlen) ;
     15   memcpy(tmp + dstlen, suffix, suffixlen + 1) ;
     16   if (!filecopy_unsafe(src, tmp, mode)) return 0 ;	
     17   if (rename(tmp, dst) < 0)
     18   {
     19     int e = errno ;
     20     unlink(tmp) ;
     21     errno = e ;
     22     return 0 ;
     23   }
     24   return 1 ;
     25 }