Mercurial > hg > octave-kai > gnulib-hg
changeset 348:fc3b2c3cecb7
Include makepath.h.
Add an argument: PRESERVE_EXISTING.
Declare char* arguments const.
author | Jim Meyering <jim@meyering.net> |
---|---|
date | Fri, 04 Nov 1994 06:05:34 +0000 |
parents | 9321b01ed65a |
children | cac0f9ef1bf2 |
files | lib/makepath.c |
diffstat | 1 files changed, 36 insertions(+), 26 deletions(-) [+] |
line wrap: on
line diff
--- a/lib/makepath.c +++ b/lib/makepath.c @@ -77,39 +77,46 @@ typedef int gid_t; #endif +#include "makepath.h" #include "safe-stat.h" void error (); /* Ensure that the directory ARGPATH exists. Remove any trailing slashes from ARGPATH before calling this function. - Make any leading directories that don't already exist, with + Create any leading directories that don't already exist, with permissions PARENT_MODE. If the last element of ARGPATH does not exist, create it as a new directory with permissions MODE. - If OWNER and GROUP are non-negative, make them the UID and GID of - created directories. + If OWNER and GROUP are non-negative, use them to set the UID and GID of + any created directories. If VERBOSE_FMT_STRING is nonzero, use it as a printf format string for printing a message after successfully making a directory, with the name of the directory that was just made as an argument. + If PRESERVE_EXISTING is non-zero and ARGPATH is an existing directory, + then do not attempt to set its permissions and ownership. Return 0 if ARGPATH exists as a directory with the proper ownership and permissions when done, otherwise 1. */ int -make_path (argpath, mode, parent_mode, owner, group, verbose_fmt_string) - char *argpath; +make_path (argpath, mode, parent_mode, owner, group, preserve_existing, + verbose_fmt_string) + const char *argpath; int mode; int parent_mode; uid_t owner; gid_t group; - char *verbose_fmt_string; + int preserve_existing; + const char *verbose_fmt_string; { char *dirpath; /* A copy we can scribble NULs on. */ struct stat stats; int retval = 0; int oldmask = umask (0); + /* FIXME: move this alloca and strcpy into the if-block. + Set dirpath to argpath in the else-block. */ dirpath = (char *) alloca (strlen (argpath) + 1); strcpy (dirpath, argpath); @@ -151,7 +158,7 @@ { if (mkdir (dirpath, tmp_mode)) { - error (0, errno, "cannot make directory `%s'", dirpath); + error (0, errno, "cannot create directory `%s'", dirpath); umask (oldmask); return 1; } @@ -196,14 +203,14 @@ } /* We're done making leading directories. - Make the final component of the path. */ + Create the final component of the path. */ /* The path could end in "/." or contain "/..", so test if we really have to create the directory. */ if (SAFE_STAT (dirpath, &stats) && mkdir (dirpath, mode)) { - error (0, errno, "cannot make directory `%s'", dirpath); + error (0, errno, "cannot create directory `%s'", dirpath); umask (oldmask); return 1; } @@ -253,26 +260,29 @@ return 1; } - /* chown must precede chmod because on some systems, - chown clears the set[ug]id bits for non-superusers, - resulting in incorrect permissions. - On System V, users can give away files with chown and then not - be able to chmod them. So don't give files away. */ + if (!preserve_existing) + { + /* chown must precede chmod because on some systems, + chown clears the set[ug]id bits for non-superusers, + resulting in incorrect permissions. + On System V, users can give away files with chown and then not + be able to chmod them. So don't give files away. */ - if (owner != (uid_t) -1 && group != (gid_t) -1 - && chown (dirpath, owner, group) + if (owner != (uid_t) -1 && group != (gid_t) -1 + && chown (dirpath, owner, group) #ifdef AFS - && errno != EPERM + && errno != EPERM #endif - ) - { - error (0, errno, "%s", dirpath); - retval = 1; - } - if (chmod (dirpath, mode)) - { - error (0, errno, "%s", dirpath); - retval = 1; + ) + { + error (0, errno, "%s", dirpath); + retval = 1; + } + if (chmod (dirpath, mode)) + { + error (0, errno, "%s", dirpath); + retval = 1; + } } }