From 21f9d5f0e0340ada998f7f9d316368c7167a4afa Mon Sep 17 00:00:00 2001 From: Christos Zoulas Date: Thu, 11 Jun 2015 12:52:32 +0000 Subject: [PATCH 1/2] Fix bug with long options and explicitly number them to avoid this in the future. Upstream-Status: Backport Signed-off-by: Robert Yang --- src/file.c | 44 +++++++++++++++++++++++---------------------- src/file_opts.h | 10 +++++----- 2 files changed, 27 insertions(+), 26 deletions(-) diff --git a/src/file.c b/src/file.c index f60dde0..c700f66 100644 --- a/src/file.c +++ b/src/file.c @@ -89,10 +89,15 @@ private int /* Global command-line options */ private const char *separator = ":"; /* Default field separator */ private const struct option long_options[] = { +#define OPT_HELP 1 +#define OPT_APPLE 2 +#define OPT_EXTENSIONS 3 +#define OPT_MIME_TYPE 4 +#define OPT_MIME_ENCODING 5 #define OPT(shortname, longname, opt, doc) \ {longname, opt, NULL, shortname}, -#define OPT_LONGONLY(longname, opt, doc) \ - {longname, opt, NULL, 0}, +#define OPT_LONGONLY(longname, opt, doc, id) \ + {longname, opt, NULL, id}, #include "file_opts.h" #undef OPT #undef OPT_LONGONLY @@ -182,24 +187,20 @@ main(int argc, char *argv[]) while ((c = getopt_long(argc, argv, OPTSTRING, long_options, &longindex)) != -1) switch (c) { - case 0 : - switch (longindex) { - case 0: - help(); - break; - case 10: - flags |= MAGIC_APPLE; - break; - case 11: - flags |= MAGIC_EXTENSION; - break; - case 12: - flags |= MAGIC_MIME_TYPE; - break; - case 13: - flags |= MAGIC_MIME_ENCODING; - break; - } + case OPT_HELP: + help(); + break; + case OPT_APPLE: + flags |= MAGIC_APPLE; + break; + case OPT_EXTENSIONS: + flags |= MAGIC_EXTENSION; + break; + case OPT_MIME_TYPE: + flags |= MAGIC_MIME_TYPE; + break; + case OPT_MIME_ENCODING: + flags |= MAGIC_MIME_ENCODING; break; case '0': nulsep = 1; @@ -595,7 +596,7 @@ help(void) #define OPT(shortname, longname, opt, doc) \ fprintf(stdout, " -%c, --" longname, shortname), \ docprint(doc); -#define OPT_LONGONLY(longname, opt, doc) \ +#define OPT_LONGONLY(longname, opt, doc, id) \ fprintf(stdout, " --" longname), \ docprint(doc); #include "file_opts.h" diff --git a/src/file_opts.h b/src/file_opts.h index 036505f..2e30d06 100644 --- a/src/file_opts.h +++ b/src/file_opts.h @@ -12,7 +12,7 @@ * switch statement! */ -OPT_LONGONLY("help", 0, " display this help and exit\n") +OPT_LONGONLY("help", 0, " display this help and exit\n", OPT_HELP) OPT('v', "version", 0, " output version information and exit\n") OPT('m', "magic-file", 1, " LIST use LIST as a colon-separated list of magic\n" " number files\n") @@ -29,10 +29,10 @@ OPT('f', "files-from", 1, " FILE read the filenames to be examined from FIL OPT('F', "separator", 1, " STRING use string as separator instead of `:'\n") OPT('i', "mime", 0, " output MIME type strings (--mime-type and\n" " --mime-encoding)\n") -OPT_LONGONLY("apple", 0, " output the Apple CREATOR/TYPE\n") -OPT_LONGONLY("extension", 0, " output a slash-separated list of extnsions\n") -OPT_LONGONLY("mime-type", 0, " output the MIME type\n") -OPT_LONGONLY("mime-encoding", 0, " output the MIME encoding\n") +OPT_LONGONLY("apple", 0, " output the Apple CREATOR/TYPE\n", OPT_APPLE) +OPT_LONGONLY("extension", 0, " output a slash-separated list of extensions\n", OPT_EXTENSIONS) +OPT_LONGONLY("mime-type", 0, " output the MIME type\n", OPT_MIME_TYPE) +OPT_LONGONLY("mime-encoding", 0, " output the MIME encoding\n", OPT_MIME_ENCODING) OPT('k', "keep-going", 0, " don't stop at the first match\n") OPT('l', "list", 0, " list magic strength\n") #ifdef S_IFLNK -- 1.7.9.5