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Replace the use of strncpy() and sprintf() with std::string and LLVM streams.

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Patch by Martinez, Javier E.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164822 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dmitri Gribenko 2012-09-28 14:15:28 +00:00
parent 8be16fe703
commit 04cb564c8d
1 changed files with 7 additions and 4 deletions
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11
lib/Support/Errno.cpp
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@ -13,6 +13,7 @@
#include "llvm/Support/Errno.h"
#include "llvm/Config/config.h" // Get autoconf configuration settings
#include "llvm/Support/raw_ostream.h"
#if HAVE_STRING_H
#include <string.h>
@ -39,7 +40,7 @@ std::string StrError(int errnum) {
const int MaxErrStrLen = 2000;
char buffer[MaxErrStrLen];
buffer[0] = '\0';
char* str = buffer;
std::string str;
#ifdef HAVE_STRERROR_R
// strerror_r is thread-safe.
if (errnum)
@ -49,6 +50,7 @@ std::string StrError(int errnum) {
str = strerror_r(errnum,buffer,MaxErrStrLen-1);
# else
strerror_r(errnum,buffer,MaxErrStrLen-1);
str = buffer;
# endif
#elif HAVE_DECL_STRERROR_S // "Windows Secure API"
if (errnum)
@ -58,12 +60,13 @@ std::string StrError(int errnum) {
// the buffer as fast as possible to minimize impact
// of collision of strerror in multiple threads.
if (errnum)
strncpy(buffer,strerror(errnum),MaxErrStrLen-1);
buffer[MaxErrStrLen-1] = '\0';
str = strerror(errnum);
#else
// Strange that this system doesn't even have strerror
// but, oh well, just use a generic message
sprintf(buffer, "Error #%d", errnum);
raw_string_ostream stream(str);
stream << "Error #" << errnum;
stream.flush();
#endif
return str;
}