The rename() function has the following prototype.
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int rename(char const char *old, char const char *new); |
If the file referenced by new exists prior to calling rename(), the behavior is implementation-defined. For portability, you must ensure that the file referenced by new does not exist when rename() is invoked.
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/* program code */ char const char *old = "oldfile.ext"; char const char *new = "newfile.ext"; if (rename(old, new) != 0) { /* Handle rename failure */ } /* program code */ |
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/* program code */ char const char *old = "oldfile.ext"; char const char *new = "newfile.ext"; FILE *file = fopen(new, "r"); if (!file) { if (rename(old, new) != 0) { /* Handle rename failure */ } } else { fclose(file); /* handle error condition */ } /* program code */ |
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Recommendation | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
FIO10-A | 2 ( medium ) 2 ( | probable ) | 2 ( medium ) | P8 | L2 |
Related Vulnerabilities
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