diff options
Diffstat (limited to 'cpukit/libcsupport/src/calloc.c')
| -rw-r--r-- | cpukit/libcsupport/src/calloc.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/cpukit/libcsupport/src/calloc.c b/cpukit/libcsupport/src/calloc.c index e015f30d6c..693aa21453 100644 --- a/cpukit/libcsupport/src/calloc.c +++ b/cpukit/libcsupport/src/calloc.c @@ -20,7 +20,10 @@ #if defined(RTEMS_NEWLIB) && !defined(HAVE_CALLOC) #include <stdlib.h> + +#include <errno.h> #include <string.h> + #include <rtems/score/basedefs.h> void *calloc( @@ -31,7 +34,15 @@ void *calloc( void *cptr; size_t length; - length = nelem * elsize; + if ( nelem == 0 ) { + length = 0; + } else if ( elsize > SIZE_MAX / nelem ) { + errno = ENOMEM; + return NULL; + } else { + length = nelem * elsize; + } + cptr = malloc( length ); RTEMS_OBFUSCATE_VARIABLE( cptr ); if ( RTEMS_PREDICT_FALSE( cptr == NULL ) ) { |