getdelays.c: fix overrun
A patch for getdelays.c that fixes a buffer overrun when you set -w. Cc: <matt@bluehost.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -61,8 +61,6 @@ __u64 stime, utime;
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#define MAX_MSG_SIZE 1024
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#define MAX_MSG_SIZE 1024
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/* Maximum number of cpus expected to be specified in a cpumask */
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/* Maximum number of cpus expected to be specified in a cpumask */
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#define MAX_CPUS 32
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#define MAX_CPUS 32
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/* Maximum length of pathname to log file */
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#define MAX_FILENAME 256
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struct msgtemplate {
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struct msgtemplate {
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struct nlmsghdr n;
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struct nlmsghdr n;
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@ -231,7 +229,7 @@ int main(int argc, char *argv[])
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int count = 0;
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int count = 0;
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int write_file = 0;
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int write_file = 0;
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int maskset = 0;
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int maskset = 0;
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char logfile[128];
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char *logfile = NULL;
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int loop = 0;
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int loop = 0;
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struct msgtemplate msg;
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struct msgtemplate msg;
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@ -251,7 +249,7 @@ int main(int argc, char *argv[])
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print_io_accounting = 1;
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print_io_accounting = 1;
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break;
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break;
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case 'w':
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case 'w':
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strncpy(logfile, optarg, MAX_FILENAME);
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logfile = strdup(optarg);
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printf("write to file %s\n", logfile);
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printf("write to file %s\n", logfile);
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write_file = 1;
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write_file = 1;
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break;
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break;
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