Complete revamp of the pathexec functions

- pathexec_run is now called exec_ae
    a for provided file name (default: argv[0])
    e for provided envp (default: environ)
- pathexec is now called mexec. m for merge environment. Option letters are:
    a for provided file name (default: argv[0])
    e for provided envp (default: environ)
    f for provided envp *and* length of the envp
    m for provided modif string plus its length (the length is always needed
because the modifs are null-terminated)
    n for provided modif string, length *and* number of modifs
- functions have a foo0 version for _exit(0) when argv[0] is null
- functions have a xfoo version to die if the exec fails
- and a xfoo0
- Compatibility #defines and #includes are there until the next major bump

1 files changed, 0 insertions, 54 deletions

diff --git a/src/libstddjb/env_dump.c b/src/libstddjb/env_dump.c
deleted file mode 100644
index 10f5913..0000000
--- a/src/libstddjb/env_dump.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/* ISC license. */
-
-#include <skalibs/nonposix.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-#include <skalibs/bytestr.h>
-#include <skalibs/env.h>
-#include <skalibs/djbunix.h>
-
- /* XXX: breaks layering, but really openat() should be supported everywhere */
-#include <skalibs/unix-transactional.h>
-
-#define SUFFIX ":envdump:XXXXXX"
-
-int env_dump (char const *dir, mode_t mode, char const *const *envp)
-{
-  int fd ;
-  size_t dirlen = strlen(dir) ;
-  char tmpdir[dirlen + sizeof(SUFFIX)] ;
-  memcpy(tmpdir, dir, dirlen) ;
-  memcpy(tmpdir + dirlen, SUFFIX, sizeof(SUFFIX)) ;
-  if (!mkdtemp(tmpdir)) return 0 ;
-  fd = open_read(tmpdir) ;
-  if (fd == -1) goto err ;
-  for (; *envp ; envp++)
-  {
-    size_t len = str_chr(*envp, '=') ;
-    size_t vallen = strlen(*envp + len + 1) ;
-    char fn[len + 1] ;
-    memcpy(fn, *envp, len) ;
-    fn[len] = 0 ;
-    len = openwritenclose_at(fd, fn, *envp + len + 1, vallen) ;
-    if (len < vallen) goto cerr ;
-  }
-  fd_close(fd) ;
-  if (chmod(tmpdir, mode) == -1) goto err ;
-  if (rename(tmpdir, dir) == -1) goto err ;
-  return 1 ;
-
- cerr:
-  fd_close(fd) ;
- err:
-  {
-    int e = errno ;
-    rm_rf(tmpdir) ;
-    errno = e ;
-  }
-  return 0 ;
-}