forked from OSchip/llvm-project
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
// RUN: %clangxx_msan -O0 -g %s -o %t && %run %t
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// RUN: %clangxx_msan -O0 -g -DPOSITIVE %s -o %t && not %run %t 2>&1 | FileCheck %s
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#include <assert.h>
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#include <iconv.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#if defined(__NetBSD__)
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#include <sys/param.h>
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#if __NetBSD_Prereq__(9,99,17)
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#define NETBSD_POSIX_ICONV 1
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#else
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#define NETBSD_POSIX_ICONV 0
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#endif
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#endif
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int main(void) {
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iconv_t cd = iconv_open("ASCII", "ASCII");
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assert(cd != (iconv_t)-1);
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char inbuf_[100];
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strcpy(inbuf_, "sample text");
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char outbuf_[100];
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#if defined(__NetBSD__) && !NETBSD_POSIX_ICONV
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// Some OSes expect the 2nd argument of iconv(3) to be of type const char **
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const char *inbuf = inbuf_;
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#else
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char *inbuf = inbuf_;
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#endif
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char *outbuf = outbuf_;
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size_t inbytesleft = strlen(inbuf_);
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size_t outbytesleft = sizeof(outbuf_);
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#ifdef POSITIVE
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{
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char u;
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char *volatile p = &u;
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inbuf_[5] = *p;
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}
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#endif
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size_t res;
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res = iconv(cd, 0, 0, 0, 0);
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assert(res != (size_t)-1);
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res = iconv(cd, 0, 0, &outbuf, &outbytesleft);
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assert(res != (size_t)-1);
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res = iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
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// CHECK: MemorySanitizer: use-of-uninitialized-value
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// CHECK: #0 {{.*}} in main {{.*}}iconv.cpp:[[@LINE-2]]
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assert(res != (size_t)-1);
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assert(inbytesleft == 0);
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assert(memcmp(inbuf_, outbuf_, strlen(inbuf_)) == 0);
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iconv_close(cd);
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return 0;
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}
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