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lib/support/devname.c
65 строк
2 KB
Eric Biggers
lib/support: remove unused label in get_devname()
27 янв 2023, 20:38
27 янв 2023, 20:38
9983b6f
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/* * devname.c --- Support function to translate a user provided string * identifying a device to an actual device path * * Copyright (C) 2022 Red Hat, Inc., Lukas Czerner <lczerner@redhat.com> * * %Begin-Header% * This file may be redistributed under the terms of the GNU Public * License. * %End-Header% */ #include <unistd.h> #include <string.h> #include <stdio.h> #include "config.h" #include "devname.h" #include "nls-enable.h" /* * blkid_get_devname() is primarily intended for parsing "NAME=value" * tokens. It will return the device matching the specified token, NULL if * nothing is found, or copy of the string if it's not in "NAME=value" * format. * get_devname() takes the same parameters and works the same way as * blkid_get_devname() except it can handle '=' in the file name. */ char *get_devname(blkid_cache cache, const char *token, const char *value) { int is_file = 0; char *ret = NULL; if (!token) goto out; if (value) { ret = blkid_get_devname(cache, token, value); goto out; } if (access(token, F_OK) == 0) is_file = 1; ret = blkid_get_devname(cache, token, NULL); if (ret) { /* * In case of collision prefer the result from * blkid_get_devname() to avoid a file masking file system with * existing tag. */ if (is_file && (strcmp(ret, token) != 0)) { fprintf(stderr, _("Collision found: '%s' refers to both '%s' " "and a file '%s'. Using '%s'!\n"), token, ret, token, ret); } goto out; } if (is_file) ret = strdup(token); out: return ret; }