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tiff2pdf: print usage on stdout when -h is used

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see #17
This commit is contained in:
Thomas Bernard 2020-03-07 16:06:40 +01:00
parent 2c6e8805ba
commit ee6cf2f59d
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GPG Key ID: 0FF11B67A5C0863C
1 changed files with 14 additions and 12 deletions
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22
tools/tiff2pdf.c
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@ -263,7 +263,7 @@ typedef struct {
/* These functions are called by main. */
void tiff2pdf_usage(void);
static void tiff2pdf_usage(int);
int tiff2pdf_match_paper_size(float*, float*, char*);
/* These functions are used to generate a PDF from a TIFF. */
@ -755,10 +755,11 @@ int main(int argc, char** argv){
t2p->pdf_image_interpolate = 1;
break;
case 'h':
case '?':
tiff2pdf_usage();
tiff2pdf_usage(EXIT_SUCCESS);
goto success;
break;
case '?':
tiff2pdf_usage(EXIT_FAILURE);
goto fail;
}
}
@ -775,14 +776,14 @@ int main(int argc, char** argv){
}
} else {
TIFFError(TIFF2PDF_MODULE, "No input file specified");
tiff2pdf_usage();
tiff2pdf_usage(EXIT_FAILURE);
goto fail;
}
if(argc > optind) {
TIFFError(TIFF2PDF_MODULE,
"No support for multiple input files");
tiff2pdf_usage();
tiff2pdf_usage(EXIT_FAILURE);
goto fail;
}
@ -844,8 +845,8 @@ success:
}
void tiff2pdf_usage(){
char* lines[]={
static void tiff2pdf_usage(int code) {
static const char* lines[]={
"usage: tiff2pdf [options] input.tiff",
"options:",
" -o: output to file name",
@ -880,10 +881,11 @@ void tiff2pdf_usage(){
NULL
};
int i=0;
FILE * out = (code == EXIT_SUCCESS) ? stdout : stderr;
fprintf(stderr, "%s\n\n", TIFFGetVersion());
fprintf(out, "%s\n\n", TIFFGetVersion());
for (i=0;lines[i]!=NULL;i++){
fprintf(stderr, "%s\n", lines[i]);
fprintf(out, "%s\n", lines[i]);
}
return;