diff options
Diffstat (limited to 'contrib/cvs/src/root.c')
| -rw-r--r-- | contrib/cvs/src/root.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/contrib/cvs/src/root.c b/contrib/cvs/src/root.c new file mode 100644 index 0000000000000..0742cf07fdbe3 --- /dev/null +++ b/contrib/cvs/src/root.c @@ -0,0 +1,177 @@ +/* + * Copyright (c) 1992, Mark D. Baushke + * + * You may distribute under the terms of the GNU General Public License as + * specified in the README file that comes with the CVS 1.4 kit. + * + * Name of Root + * + * Determine the path to the CVSROOT and set "Root" accordingly. + * If this looks like of modified clone of Name_Repository() in + * repos.c, it is... + */ + +#include "cvs.h" + +char * +Name_Root(dir, update_dir) + char *dir; + char *update_dir; +{ + FILE *fpin; + char *ret, *xupdate_dir; + char root[PATH_MAX]; + char tmp[PATH_MAX]; + char cvsadm[PATH_MAX]; + char *cp; + + if (update_dir && *update_dir) + xupdate_dir = update_dir; + else + xupdate_dir = "."; + + if (dir != NULL) + { + (void) sprintf (cvsadm, "%s/%s", dir, CVSADM); + (void) sprintf (tmp, "%s/%s", dir, CVSADM_ROOT); + } + else + { + (void) strcpy (cvsadm, CVSADM); + (void) strcpy (tmp, CVSADM_ROOT); + } + + /* + * Do not bother looking for a readable file if there is no cvsadm + * directory present. + * + * It is possible that not all repositories will have a CVS/Root + * file. This is ok, but the user will need to specify -d + * /path/name or have the environment variable CVSROOT set in + * order to continue. + */ + if ((!isdir (cvsadm)) || (!isreadable (tmp))) + { + if (CVSroot == NULL) + { + error (0, 0, "in directory %s:", xupdate_dir); + error (0, 0, "must set the CVSROOT environment variable"); + error (0, 0, "or specify the '-d' option to %s.", program_name); + } + return (NULL); + } + + /* + * The assumption here is that the CVS Root is always contained in the + * first line of the "Root" file. + */ + fpin = open_file (tmp, "r"); + + if (fgets (root, PATH_MAX, fpin) == NULL) + { + error (0, 0, "in directory %s:", xupdate_dir); + error (0, errno, "cannot read %s", CVSADM_ROOT); + error (0, 0, "please correct this problem"); + return (NULL); + } + (void) fclose (fpin); + if ((cp = strrchr (root, '\n')) != NULL) + *cp = '\0'; /* strip the newline */ + + /* + * root now contains a candidate for CVSroot. It must be an + * absolute pathname + */ + +#ifdef CLIENT_SUPPORT + /* It must specify a server via remote CVS or be an absolute pathname. */ + if ((strchr (root, ':') == NULL) + && ! isabsolute (root)) +#else /* ! CLIENT_SUPPORT */ + if (root[0] != '/') +#endif /* CLIENT_SUPPORT */ + { + error (0, 0, "in directory %s:", xupdate_dir); + error (0, 0, + "ignoring %s because it does not contain an absolute pathname.", + CVSADM_ROOT); + return (NULL); + } + +#ifdef CLIENT_SUPPORT + if ((strchr (root, ':') == NULL) && !isdir (root)) +#else /* ! CLIENT_SUPPORT */ + if (!isdir (root)) +#endif /* CLIENT_SUPPORT */ + { + error (0, 0, "in directory %s:", xupdate_dir); + error (0, 0, + "ignoring %s because it specifies a non-existent repository %s", + CVSADM_ROOT, root); + return (NULL); + } + + /* allocate space to return and fill it in */ + strip_path (root); + ret = xstrdup (root); + return (ret); +} + +/* + * Returns non-zero if the two directories have the same stat values + * which indicates that they are really the same directories. + */ +int +same_directories (dir1, dir2) + char *dir1; + char *dir2; +{ + struct stat sb1; + struct stat sb2; + int ret; + + if (stat (dir1, &sb1) < 0) + return (0); + if (stat (dir2, &sb2) < 0) + return (0); + + ret = 0; + if ( (memcmp( &sb1.st_dev, &sb2.st_dev, sizeof(dev_t) ) == 0) && + (memcmp( &sb1.st_ino, &sb2.st_ino, sizeof(ino_t) ) == 0)) + ret = 1; + + return (ret); +} + + +/* + * Write the CVS/Root file so that the environment variable CVSROOT + * and/or the -d option to cvs will be validated or not necessary for + * future work. + */ +void +Create_Root (dir, rootdir) + char *dir; + char *rootdir; +{ + FILE *fout; + char tmp[PATH_MAX]; + + if (noexec) + return; + + /* record the current cvs root */ + + if (rootdir != NULL) + { + if (dir != NULL) + (void) sprintf (tmp, "%s/%s", dir, CVSADM_ROOT); + else + (void) strcpy (tmp, CVSADM_ROOT); + fout = open_file (tmp, "w+"); + if (fprintf (fout, "%s\n", rootdir) < 0) + error (1, errno, "write to %s failed", tmp); + if (fclose (fout) == EOF) + error (1, errno, "cannot close %s", tmp); + } +} |