forked from OSchip/llvm-project
104 lines
5.0 KiB
C
104 lines
5.0 KiB
C
// RUN: %check_clang_tidy %s cert-err34-c %t -- -- -std=c11
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typedef __SIZE_TYPE__ size_t;
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typedef signed ptrdiff_t;
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typedef long long intmax_t;
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typedef unsigned long long uintmax_t;
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typedef void * FILE;
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extern FILE *stdin;
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extern int fscanf(FILE * restrict stream, const char * restrict format, ...);
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extern int scanf(const char * restrict format, ...);
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extern int sscanf(const char * restrict s, const char * restrict format, ...);
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extern double atof(const char *nptr);
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extern int atoi(const char *nptr);
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extern long int atol(const char *nptr);
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extern long long int atoll(const char *nptr);
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void f1(const char *in) {
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int i;
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long long ll;
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unsigned int ui;
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unsigned long long ull;
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intmax_t im;
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uintmax_t uim;
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float f;
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double d;
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long double ld;
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'sscanf' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtol' instead [cert-err34-c]
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sscanf(in, "%d", &i);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'fscanf' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtoll' instead [cert-err34-c]
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fscanf(stdin, "%lld", &ll);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'sscanf' used to convert a string to an unsigned integer value, but function will not report conversion errors; consider using 'strtoul' instead [cert-err34-c]
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sscanf(in, "%u", &ui);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'fscanf' used to convert a string to an unsigned integer value, but function will not report conversion errors; consider using 'strtoull' instead [cert-err34-c]
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fscanf(stdin, "%llu", &ull);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtoimax' instead [cert-err34-c]
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scanf("%jd", &im);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'fscanf' used to convert a string to an unsigned integer value, but function will not report conversion errors; consider using 'strtoumax' instead [cert-err34-c]
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fscanf(stdin, "%ju", &uim);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'sscanf' used to convert a string to a floating-point value, but function will not report conversion errors; consider using 'strtof' instead [cert-err34-c]
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sscanf(in, "%f", &f); // to float
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'fscanf' used to convert a string to a floating-point value, but function will not report conversion errors; consider using 'strtod' instead [cert-err34-c]
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fscanf(stdin, "%lg", &d);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'sscanf' used to convert a string to a floating-point value, but function will not report conversion errors; consider using 'strtold' instead [cert-err34-c]
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sscanf(in, "%Le", &ld);
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// These are conversions with other modifiers
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short s;
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char c;
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size_t st;
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ptrdiff_t pt;
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert
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scanf("%hhd", &c);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert
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scanf("%hd", &s);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert
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scanf("%zu", &st);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert
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scanf("%td", &pt);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert
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scanf("%o", ui);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert
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scanf("%X", ui);
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert
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scanf("%x", ui);
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}
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void f2(const char *in) {
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// CHECK-MESSAGES: :[[@LINE+1]]:11: warning: 'atoi' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtol' instead [cert-err34-c]
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int i = atoi(in); // to int
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// CHECK-MESSAGES: :[[@LINE+1]]:12: warning: 'atol' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtol' instead [cert-err34-c]
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long l = atol(in); // to long
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// CHECK-MESSAGES: :[[@LINE+1]]:18: warning: 'atoll' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtoll' instead [cert-err34-c]
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long long ll = atoll(in); // to long long
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// CHECK-MESSAGES: :[[@LINE+1]]:14: warning: 'atof' used to convert a string to a floating-point value, but function will not report conversion errors; consider using 'strtod' instead [cert-err34-c]
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double d = atof(in); // to double
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}
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void f3(void) {
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int i;
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unsigned int u;
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float f;
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char str[32];
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// Test that we don't report multiple infractions for a single call.
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert
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scanf("%d%u%f", &i, &u, &f);
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// Test that we still catch infractions that are not the first specifier.
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// CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'scanf' used to convert
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scanf("%s%d", str, &i);
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}
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void do_not_diagnose(void) {
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char str[32];
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scanf("%s", str); // Not a numerical conversion
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scanf("%*d"); // Assignment suppressed
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}
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