SEI CERT C Coding Standard

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Old Version 45

changes.mady.by.user Carol J. Lallier

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compared with

New Version 46

changes.mady.by.user Aaron Ballman

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Code Block
bgColor#ffcccc
langc
char buf[BUFSIZ];
#include <stdio.h>
 
void func(FILE *file;) {
/* Initialize file */char buf[BUFSIZ];

  if (fgets(buf, sizeof(buf), file) == NULL) {
    /* Set error flag and continue. */
  }

}

However, buf is not reset and has unknown contents.

...

Code Block
bgColor#ccccff
langc
char buf[BUFSIZ];
#include <stdio.h>
 
void func(FILE *file;) {
/* Initialize file */char buf[BUFSIZ];

  if (fgets(buf, sizeof(buf), file) == NULL) {
    /* Set error flag and continue. */
    *buf = '\0';
  }

}

Exceptions

FIO40-EX1: If the string goes out of scope immediately following the call to fgets() or fgetws() or is not referenced in the case of a failure, it need not be reset.

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