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GUACAMOLE-500: Explicitly guarantee typescript filename cannot exceed buffer size.

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This commit is contained in:
Michael Jumper 2018-02-06 22:12:08 -08:00
parent 5b58c7e15b
commit cd0e48234a
1 changed files with 7 additions and 2 deletions
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9
src/terminal/typescript.c
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@ -130,8 +130,13 @@ guac_terminal_typescript* guac_terminal_typescript_alloc(const char* path,
} }
/* Append suffix to basename */ /* Append suffix to basename */
sprintf(typescript->timing_filename, "%s.%s", typescript->data_filename, if (snprintf(typescript->timing_filename, sizeof(typescript->timing_filename),
GUAC_TERMINAL_TYPESCRIPT_TIMING_SUFFIX); "%s.%s", typescript->data_filename, GUAC_TERMINAL_TYPESCRIPT_TIMING_SUFFIX)
>= sizeof(typescript->timing_filename)) {
close(typescript->data_fd);
free(typescript);
return NULL;
}
/* Attempt to open typescript timing file */ /* Attempt to open typescript timing file */
typescript->timing_fd = open(typescript->timing_filename, typescript->timing_fd = open(typescript->timing_filename,