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util: add function for looking up the user shell
Add a virGetUserShell wrapper around virGetUserEnt, that returns the shell field. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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@ -2516,6 +2516,7 @@ virGetUserDirectoryByUID;
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virGetUserID;
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virGetUserName;
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virGetUserRuntimeDirectory;
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virGetUserShell;
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virHexToBin;
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virIndexToDiskName;
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virIsCapableFCHost;
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@ -757,7 +757,7 @@ virGetUserDirectory(void)
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/* Look up fields from the user database for the given user. On
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* error, set errno, report the error, and return -1. */
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static int
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virGetUserEnt(uid_t uid, char **name, gid_t *group, char **dir)
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virGetUserEnt(uid_t uid, char **name, gid_t *group, char **dir, char **shell)
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{
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char *strbuf;
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struct passwd pwbuf;
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@ -771,6 +771,8 @@ virGetUserEnt(uid_t uid, char **name, gid_t *group, char **dir)
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*name = NULL;
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if (dir)
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*dir = NULL;
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if (shell)
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*shell = NULL;
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/* sysconf is a hint; if it fails, fall back to a reasonable size */
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if (val < 0)
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@ -806,14 +808,21 @@ virGetUserEnt(uid_t uid, char **name, gid_t *group, char **dir)
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goto cleanup;
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if (group)
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*group = pw->pw_gid;
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if (dir && VIR_STRDUP(*dir, pw->pw_dir) < 0) {
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if (name)
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VIR_FREE(*name);
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if (dir && VIR_STRDUP(*dir, pw->pw_dir) < 0)
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goto cleanup;
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if (shell && VIR_STRDUP(*shell, pw->pw_shell) < 0)
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goto cleanup;
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}
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ret = 0;
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cleanup:
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if (ret < 0) {
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if (name)
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VIR_FREE(*name);
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if (dir)
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VIR_FREE(*dir);
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if (shell)
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VIR_FREE(*shell);
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}
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VIR_FREE(strbuf);
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return ret;
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}
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@ -873,7 +882,15 @@ char *
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virGetUserDirectoryByUID(uid_t uid)
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{
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char *ret;
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virGetUserEnt(uid, NULL, NULL, &ret);
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virGetUserEnt(uid, NULL, NULL, &ret, NULL);
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return ret;
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}
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char *virGetUserShell(uid_t uid)
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{
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char *ret;
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virGetUserEnt(uid, NULL, NULL, NULL, &ret);
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return ret;
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}
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@ -923,7 +940,7 @@ char *virGetUserRuntimeDirectory(void)
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char *virGetUserName(uid_t uid)
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{
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char *ret;
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virGetUserEnt(uid, &ret, NULL, NULL);
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virGetUserEnt(uid, &ret, NULL, NULL, NULL);
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return ret;
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}
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@ -1109,7 +1126,7 @@ virGetGroupList(uid_t uid, gid_t gid, gid_t **list)
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if (uid == (uid_t)-1)
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return 0;
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if (virGetUserEnt(uid, &user, &primary, NULL) < 0)
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if (virGetUserEnt(uid, &user, &primary, NULL, NULL) < 0)
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return -1;
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ret = mgetgroups(user, primary, list);
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@ -1283,6 +1300,15 @@ virGetUserDirectoryByUID(uid_t uid ATTRIBUTE_UNUSED)
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return ret;
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}
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char *
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virGetUserShell(uid_t uid ATTRIBUTE_UNUSED)
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{
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virReportError(VIR_ERR_INTERNAL_ERROR,
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"%s", _("virGetUserShell is not available"));
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return NULL;
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}
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char *
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virGetUserConfigDirectory(void)
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{
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@ -1329,6 +1355,15 @@ virGetUserDirectoryByUID(uid_t uid ATTRIBUTE_UNUSED)
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return NULL;
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}
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char *
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virGetUserShell(uid_t uid ATTRIBUTE_UNUSED)
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{
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virReportError(VIR_ERR_INTERNAL_ERROR,
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"%s", _("virGetUserShell is not available"));
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return NULL;
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}
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char *
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virGetUserConfigDirectory(void)
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{
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@ -139,6 +139,7 @@ char *virGetUserDirectoryByUID(uid_t uid);
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char *virGetUserConfigDirectory(void);
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char *virGetUserCacheDirectory(void);
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char *virGetUserRuntimeDirectory(void);
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char *virGetUserShell(uid_t uid);
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char *virGetUserName(uid_t uid);
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char *virGetGroupName(gid_t gid);
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int virGetGroupList(uid_t uid, gid_t group, gid_t **groups)
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