ddc5d40dd2
Warnings and notes of checker alpha.unix.StdLibraryFunctionArgs are improved. Previously one warning and one note was emitted for every finding, now one warning is emitted only that contains a detailed description of the found issue. Reviewed By: Szelethus Differential Revision: https://reviews.llvm.org/D143194
127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.unix.Stream,alpha.unix.StdCLibraryFunctionArgs,debug.ExprInspection \
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// RUN: -analyzer-config apiModeling.StdCLibraryFunctions:ModelPOSIX=true -verify=stdargs,any %s
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// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.unix.Stream,debug.ExprInspection \
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// RUN: -analyzer-config apiModeling.StdCLibraryFunctions:ModelPOSIX=true -verify=any %s
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// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.unix.StdCLibraryFunctionArgs,debug.ExprInspection \
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// RUN: -analyzer-config apiModeling.StdCLibraryFunctions:ModelPOSIX=true -verify=stdargs,any %s
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#include "Inputs/system-header-simulator.h"
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extern void clang_analyzer_eval(int);
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void *buf;
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size_t size;
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size_t n;
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void test_fopen(void) {
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FILE *fp = fopen("path", "r");
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}} any-warning{{FALSE}}
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fclose(fp); // stdargs-warning{{should not be NULL}}
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}
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void test_tmpfile(void) {
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FILE *fp = tmpfile();
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}} any-warning{{FALSE}}
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fclose(fp); // stdargs-warning{{should not be NULL}}
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}
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void test_fclose(void) {
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FILE *fp = tmpfile();
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fclose(fp); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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}
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void test_freopen(void) {
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FILE *fp = tmpfile();
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fp = freopen("file", "w", fp); // stdargs-warning{{should not be NULL}}
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fclose(fp); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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}
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void test_fread(void) {
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FILE *fp = tmpfile();
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size_t ret = fread(buf, size, n, fp); // stdargs-warning{{The 4th argument to 'fread' should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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clang_analyzer_eval(ret <= n); // any-warning{{TRUE}}
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clang_analyzer_eval(ret == n); // any-warning{{TRUE}} any-warning{{FALSE}}
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fclose(fp);
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}
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void test_fwrite(void) {
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FILE *fp = tmpfile();
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size_t ret = fwrite(buf, size, n, fp); // stdargs-warning{{The 4th argument to 'fwrite' should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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clang_analyzer_eval(ret <= n); // any-warning{{TRUE}}
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clang_analyzer_eval(ret == n); // any-warning{{TRUE}} any-warning{{FALSE}}
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fclose(fp);
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}
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void test_fseek(void) {
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FILE *fp = tmpfile();
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fseek(fp, 0, 0); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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fclose(fp);
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}
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void test_ftell(void) {
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FILE *fp = tmpfile();
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ftell(fp); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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fclose(fp);
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}
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void test_rewind(void) {
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FILE *fp = tmpfile();
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rewind(fp); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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fclose(fp);
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}
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void test_fgetpos(void) {
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FILE *fp = tmpfile();
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fpos_t pos;
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fgetpos(fp, &pos); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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fclose(fp);
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}
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void test_fsetpos(void) {
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FILE *fp = tmpfile();
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fpos_t pos;
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fsetpos(fp, &pos); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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fclose(fp);
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}
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void test_clearerr(void) {
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FILE *fp = tmpfile();
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clearerr(fp); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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fclose(fp);
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}
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void test_feof(void) {
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FILE *fp = tmpfile();
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feof(fp); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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fclose(fp);
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}
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void test_ferror(void) {
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FILE *fp = tmpfile();
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ferror(fp); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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fclose(fp);
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}
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void test_fileno(void) {
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FILE *fp = tmpfile();
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fileno(fp); // stdargs-warning{{should not be NULL}}
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clang_analyzer_eval(fp != NULL); // any-warning{{TRUE}}
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fclose(fp);
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}
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