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Fix Medium Severity Coverity finding:

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CWE-252 (Ignoring number of bytes read)
(https://cwe.mitre.org/data/definitions/252.html)
This commit is contained in:
Erno Kilpelainen
2026-06-05 10:59:13 +00:00
parent ceb02a647d
commit bce104a764
1 changed files with 20 additions and 6 deletions
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tools/fftutil.c
+16 -2
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@@ -110,14 +110,28 @@ void fft_file_real(FILE * fin,FILE * fout,int nfft,int isinverse)
st = kiss_fftr_alloc( nfft ,isinverse ,0,0); st = kiss_fftr_alloc( nfft ,isinverse ,0,0);
if (isinverse==0) { if (isinverse==0) {
while ( fread( rbuf , sizeof(kiss_fft_scalar) * nfft ,1, fin ) > 0 ) { while (1) {
size_t nread = fread(rbuf, sizeof(kiss_fft_scalar), nfft, fin);
if (nread == nfft) {
kiss_fftr( st , rbuf ,cbuf); kiss_fftr( st , rbuf ,cbuf);
fwrite( cbuf , sizeof(kiss_fft_cpx) , (nfft/2 + 1) , fout ); fwrite( cbuf , sizeof(kiss_fft_cpx) , (nfft/2 + 1) , fout );
continue;
}
if (nread != 0)
fprintf(stderr,"short read on real input\n");
break;
} }
}else{ }else{
while ( fread( cbuf , sizeof(kiss_fft_cpx) * (nfft/2+1) ,1, fin ) > 0 ) { while (1) {
size_t nread = fread(cbuf, sizeof(kiss_fft_cpx), (nfft/2+1), fin);
if (nread == (size_t)(nfft/2+1)) {
kiss_fftri( st , cbuf ,rbuf); kiss_fftri( st , cbuf ,rbuf);
fwrite( rbuf , sizeof(kiss_fft_scalar) , nfft , fout ); fwrite( rbuf , sizeof(kiss_fft_scalar) , nfft , fout );
continue;
}
if (nread != 0)
fprintf(stderr,"short read on complex input\n");
break;
} }
} }
free(st); free(st);