fiptool: return zero status on help and help <command>
Querying the 'fiptool' for help or help <command> should return 0
return status (success) and not 1 (failure). In the other hand, if tool is
executed with any other command (not help) where command's parameters are
either missing or wrong, then the tool should return non-zero (failure). Now,
the 'usage' function caller is the one that passes the return status.
Change-Id: Id5eea91037cd810fb1e34a42e8199ef504f5daa4
Signed-off-by: Leonardo Sandoval <leonardo.sandoval@linaro.org>
diff --git a/tools/fiptool/fiptool.c b/tools/fiptool/fiptool.c
index 80b498e..8c5b04a 100644
--- a/tools/fiptool/fiptool.c
+++ b/tools/fiptool/fiptool.c
@@ -24,17 +24,17 @@
#define OPT_ALIGN 2
static int info_cmd(int argc, char *argv[]);
-static void info_usage(void);
+static void info_usage(int);
static int create_cmd(int argc, char *argv[]);
-static void create_usage(void);
+static void create_usage(int);
static int update_cmd(int argc, char *argv[]);
-static void update_usage(void);
+static void update_usage(int);
static int unpack_cmd(int argc, char *argv[]);
-static void unpack_usage(void);
+static void unpack_usage(int);
static int remove_cmd(int argc, char *argv[]);
-static void remove_usage(void);
+static void remove_usage(int);
static int version_cmd(int argc, char *argv[]);
-static void version_usage(void);
+static void version_usage(int);
static int help_cmd(int argc, char *argv[]);
static void usage(void);
@@ -448,7 +448,7 @@
fip_toc_header_t toc_header;
if (argc != 2)
- info_usage();
+ info_usage(EXIT_FAILURE);
argc--, argv++;
parse_fip(argv[0], &toc_header);
@@ -487,10 +487,10 @@
return 0;
}
-static void info_usage(void)
+static void info_usage(int exit_status)
{
printf("fiptool info FIP_FILENAME\n");
- exit(1);
+ exit(exit_status);
}
static int pack_images(const char *filename, uint64_t toc_flags, unsigned long align)
@@ -669,7 +669,7 @@
unsigned long align = 1;
if (argc < 2)
- create_usage();
+ create_usage(EXIT_FAILURE);
opts = fill_common_opts(opts, &nr_opts, required_argument);
opts = add_opt(opts, &nr_opts, "plat-toc-flags", required_argument,
@@ -710,7 +710,7 @@
if (memcmp(&uuid, &uuid_null, sizeof(uuid_t)) == 0 ||
filename[0] == '\0')
- create_usage();
+ create_usage(EXIT_FAILURE);
desc = lookup_image_desc_from_uuid(&uuid);
if (desc == NULL) {
@@ -722,7 +722,7 @@
break;
}
default:
- create_usage();
+ create_usage(EXIT_FAILURE);
}
}
argc -= optind;
@@ -730,7 +730,7 @@
free(opts);
if (argc == 0)
- create_usage();
+ create_usage(EXIT_SUCCESS);
update_fip();
@@ -738,7 +738,7 @@
return 0;
}
-static void create_usage(void)
+static void create_usage(int exit_status)
{
toc_entry_t *toc_entry = toc_entries;
@@ -753,7 +753,7 @@
for (; toc_entry->cmdline_name != NULL; toc_entry++)
printf(" --%-16s FILENAME\t%s\n", toc_entry->cmdline_name,
toc_entry->name);
- exit(1);
+ exit(exit_status);
}
static int update_cmd(int argc, char *argv[])
@@ -767,7 +767,7 @@
int pflag = 0;
if (argc < 2)
- update_usage();
+ update_usage(EXIT_FAILURE);
opts = fill_common_opts(opts, &nr_opts, required_argument);
opts = add_opt(opts, &nr_opts, "align", required_argument, OPT_ALIGN);
@@ -807,7 +807,7 @@
if (memcmp(&uuid, &uuid_null, sizeof(uuid_t)) == 0 ||
filename[0] == '\0')
- update_usage();
+ update_usage(EXIT_FAILURE);
desc = lookup_image_desc_from_uuid(&uuid);
if (desc == NULL) {
@@ -825,7 +825,7 @@
snprintf(outfile, sizeof(outfile), "%s", optarg);
break;
default:
- update_usage();
+ update_usage(EXIT_FAILURE);
}
}
argc -= optind;
@@ -833,7 +833,7 @@
free(opts);
if (argc == 0)
- update_usage();
+ update_usage(EXIT_SUCCESS);
if (outfile[0] == '\0')
snprintf(outfile, sizeof(outfile), "%s", argv[0]);
@@ -851,7 +851,7 @@
return 0;
}
-static void update_usage(void)
+static void update_usage(int exit_status)
{
toc_entry_t *toc_entry = toc_entries;
@@ -867,7 +867,7 @@
for (; toc_entry->cmdline_name != NULL; toc_entry++)
printf(" --%-16s FILENAME\t%s\n", toc_entry->cmdline_name,
toc_entry->name);
- exit(1);
+ exit(exit_status);
}
static int unpack_cmd(int argc, char *argv[])
@@ -880,7 +880,7 @@
int unpack_all = 1;
if (argc < 2)
- unpack_usage();
+ unpack_usage(EXIT_FAILURE);
opts = fill_common_opts(opts, &nr_opts, required_argument);
opts = add_opt(opts, &nr_opts, "blob", required_argument, 'b');
@@ -915,7 +915,7 @@
if (memcmp(&uuid, &uuid_null, sizeof(uuid_t)) == 0 ||
filename[0] == '\0')
- unpack_usage();
+ unpack_usage(EXIT_FAILURE);
desc = lookup_image_desc_from_uuid(&uuid);
if (desc == NULL) {
@@ -934,7 +934,7 @@
snprintf(outdir, sizeof(outdir), "%s", optarg);
break;
default:
- unpack_usage();
+ unpack_usage(EXIT_FAILURE);
}
}
argc -= optind;
@@ -942,7 +942,7 @@
free(opts);
if (argc == 0)
- unpack_usage();
+ unpack_usage(EXIT_SUCCESS);
parse_fip(argv[0], NULL);
@@ -986,7 +986,7 @@
return 0;
}
-static void unpack_usage(void)
+static void unpack_usage(int exit_status)
{
toc_entry_t *toc_entry = toc_entries;
@@ -1003,7 +1003,7 @@
toc_entry->name);
printf("\n");
printf("If no options are provided, all images will be unpacked.\n");
- exit(1);
+ exit(exit_status);
}
static int remove_cmd(int argc, char *argv[])
@@ -1017,7 +1017,7 @@
int fflag = 0;
if (argc < 2)
- remove_usage();
+ remove_usage(EXIT_FAILURE);
opts = fill_common_opts(opts, &nr_opts, no_argument);
opts = add_opt(opts, &nr_opts, "align", required_argument, OPT_ALIGN);
@@ -1053,7 +1053,7 @@
filename, sizeof(filename));
if (memcmp(&uuid, &uuid_null, sizeof(uuid_t)) == 0)
- remove_usage();
+ remove_usage(EXIT_FAILURE);
desc = lookup_image_desc_from_uuid(&uuid);
if (desc == NULL) {
@@ -1071,7 +1071,7 @@
snprintf(outfile, sizeof(outfile), "%s", optarg);
break;
default:
- remove_usage();
+ remove_usage(EXIT_FAILURE);
}
}
argc -= optind;
@@ -1079,7 +1079,7 @@
free(opts);
if (argc == 0)
- remove_usage();
+ remove_usage(EXIT_SUCCESS);
if (outfile[0] != '\0' && access(outfile, F_OK) == 0 && !fflag)
log_errx("File %s already exists, use --force to overwrite it",
@@ -1110,7 +1110,7 @@
return 0;
}
-static void remove_usage(void)
+static void remove_usage(int exit_status)
{
toc_entry_t *toc_entry = toc_entries;
@@ -1126,7 +1126,7 @@
for (; toc_entry->cmdline_name != NULL; toc_entry++)
printf(" --%-16s\t%s\n", toc_entry->cmdline_name,
toc_entry->name);
- exit(1);
+ exit(exit_status);
}
static int version_cmd(int argc, char *argv[])
@@ -1140,10 +1140,10 @@
return 0;
}
-static void version_usage(void)
+static void version_usage(int exit_status)
{
printf("fiptool version\n");
- exit(1);
+ exit(exit_status);
}
static int help_cmd(int argc, char *argv[])
@@ -1157,7 +1157,7 @@
for (i = 0; i < NELEM(cmds); i++) {
if (strcmp(cmds[i].name, argv[0]) == 0 &&
cmds[i].usage != NULL)
- cmds[i].usage();
+ cmds[i].usage(EXIT_SUCCESS);
}
if (i == NELEM(cmds))
printf("No help for subcommand '%s'\n", argv[0]);
@@ -1178,7 +1178,7 @@
printf(" remove\tRemove images from FIP.\n");
printf(" version\tShow fiptool version.\n");
printf(" help\t\tShow help for given command.\n");
- exit(1);
+ exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
diff --git a/tools/fiptool/fiptool.h b/tools/fiptool/fiptool.h
index af3fcbd..88c4a7e 100644
--- a/tools/fiptool/fiptool.h
+++ b/tools/fiptool/fiptool.h
@@ -48,7 +48,7 @@
typedef struct cmd {
char *name;
int (*handler)(int, char **);
- void (*usage)(void);
+ void (*usage)(int);
} cmd_t;
#endif /* FIPTOOL_H */