~mdw / checkpath / blame
| Commit | Line | Data |
|---|---|---|
| caa14ca2 MW |
1 | /* -*-c-*- |
| 2 | * | |
| 3 | * Utilities not worth librarifying | |
| 4 | * | |
| 5 | * (c) 2008 Mark Wooding | |
| 6 | */ | |
| 7 | ||
| 8 | /*----- Licensing notice --------------------------------------------------* | |
| 9 | * | |
| 10 | * This file is part of chkpath. | |
| 11 | * | |
| 12 | * chkpath is free software; you can redistribute it and/or modify | |
| 13 | * it under the terms of the GNU General Public License as published by | |
| 14 | * the Free Software Foundation; either version 2 of the License, or | |
| 15 | * (at your option) any later version. | |
| 16 | * | |
| 17 | * chkpath is distributed in the hope that it will be useful, | |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | * GNU General Public License for more details. | |
| 21 | * | |
| 22 | * You should have received a copy of the GNU General Public License | |
| 23 | * along with chkpath; if not, write to the Free Software Foundation, | |
| 24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 25 | */ | |
| 26 | ||
| 27 | /*----- Header files ------------------------------------------------------*/ | |
| 28 | ||
| 29 | #include "config.h" | |
| 30 | ||
| 31 | #include <ctype.h> | |
| 32 | ||
| 33 | #include <sys/types.h> | |
| 34 | ||
| 35 | #include <grp.h> | |
| 36 | ||
| 37 | #include <mLib/macros.h> | |
| 38 | #include <mLib/report.h> | |
| 39 | ||
| 40 | #include "checkpath.h" | |
| 41 | #include "utils.h" | |
| 42 | ||
| 43 | /*----- Main code ---------------------------------------------------------*/ | |
| 44 | ||
| 45 | /* --- @allowgroup@ --- * | |
| 46 | * | |
| 47 | * Arguments: @struct checkpath *cp@ = pointer to structure to mess with | |
| 48 | * @const char *gname@ = trust group @gname@ | |
| 49 | * | |
| 50 | * Returns: --- | |
| 51 | * | |
| 52 | * Use: Adds the gid corresponding to @gname@ (which may be a number) | |
| 53 | * to the list of things we trust. | |
| 54 | */ | |
| 55 | ||
| 56 | void allowgroup(struct checkpath *cp, const char *gname) | |
| 57 | { | |
| 58 | struct group *gr; | |
| 59 | const char *p; | |
| 60 | gid_t g; | |
| 61 | ||
| 62 | /* --- Check for numeric group spec --- */ | |
| 63 | ||
| 64 | for (p = gname; *p; p++) { | |
| 65 | if (!isdigit((unsigned char)*p)) | |
| 66 | goto lookup; | |
| 67 | } | |
| 68 | g = atoi(gname); | |
| 69 | goto insert; | |
| 70 | ||
| 71 | /* --- Look up a group by name --- */ | |
| 72 | ||
| 73 | lookup: | |
| 74 | if ((gr = getgrnam(gname)) == 0) | |
| 75 | die(1, "group %s not found", gname); | |
| 76 | g = gr->gr_gid; | |
| 77 | ||
| 78 | /* --- Insert the group into the table --- */ | |
| 79 | ||
| 80 | insert: | |
| 81 | if (cp->cp_gids >= N(cp->cp_gid)) | |
| 82 | die(1, "too many groups"); | |
| 83 | cp->cp_gid[cp->cp_gids++] = g; | |
| 84 | } | |
| 85 | ||
| 86 | /*----- That's all, folks -------------------------------------------------*/ |