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examples: exit w/failure w/no args

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cwebp, gif2webp, img2webp, vwebp and webpinfo are modified in this
change to align with the other examples. When given no arguments, the
examples print their help output and exit with failure.

Bug: webp:42340557, webp:381372617
Change-Id: Ifed4eb79e98233f7aa780c42e489636d0cf4a035
This commit is contained in:
James Zern 2024-12-06 13:11:29 -08:00
parent fcff86c71b
commit da0d9c7d4e
6 changed files with 12 additions and 4 deletions
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2
examples/cwebp.c
View File

@ -698,7 +698,7 @@ int main(int argc, const char* argv[]) {
if (argc == 1) {
HelpShort();
FREE_WARGV_AND_RETURN(EXIT_SUCCESS);
FREE_WARGV_AND_RETURN(EXIT_FAILURE);
}
for (c = 1; c < argc; ++c) {

2
examples/gif2webp.c
View File

@ -158,7 +158,7 @@ int main(int argc, const char* argv[]) {
if (argc == 1) {
Help();
FREE_WARGV_AND_RETURN(EXIT_SUCCESS);
FREE_WARGV_AND_RETURN(EXIT_FAILURE);
}
for (c = 1; c < argc; ++c) {

2
examples/img2webp.c
View File

@ -229,6 +229,8 @@ int main(int argc, const char* argv[]) {
}
if (!have_input) {
fprintf(stderr, "No input file(s) for generating animation!\n");
ok = 0;
Help();
goto End;
}

2
examples/vwebp.c
View File

@ -568,7 +568,7 @@ int main(int argc, char* argv[]) {
if (kParams.file_name == NULL) {
printf("missing input file!!\n");
Help();
FREE_WARGV_AND_RETURN(EXIT_SUCCESS);
FREE_WARGV_AND_RETURN(EXIT_FAILURE);
}
if (!ImgIoUtilReadFile(kParams.file_name,

2
examples/webpinfo.c
View File

@ -1132,7 +1132,7 @@ int main(int argc, const char* argv[]) {
if (argc == 1) {
Help();
FREE_WARGV_AND_RETURN(EXIT_SUCCESS);
FREE_WARGV_AND_RETURN(EXIT_FAILURE);
}
// Parse command-line input.

6
extras/vwebp_sdl.c
View File

@ -57,6 +57,12 @@ int main(int argc, char* argv[]) {
INIT_WARGV(argc, argv);
if (argc == 1) {
fprintf(stderr, "Usage: %s [-h] image.webp [more_files.webp...]\n",
argv[0]);
goto Error;
}
for (c = 1; c < argc; ++c) {
const char* file = NULL;
const uint8_t* webp = NULL;