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565139a6d5
I believe coverity can't tell the length of the return value from strftime based on the format string (like we can), so it allows `n` to be larger than it could be which then allows `sz - n` to be negative which is size_t positive and very large so it thinks an overrun is possible. CID#1563211 Signed-off-by: Christian Hopps <chopps@labn.net>
98 lines
2.1 KiB
C
98 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2021 Vmware, Inc.
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* Pushpasis Sarkar <spushpasis@vmware.com>
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* Copyright (c) 2023, LabN Consulting, L.L.C.
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*
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*/
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#ifndef _FRR_MGMTD_HISTORY_H_
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#define _FRR_MGMTD_HISTORY_H_
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#include "vrf.h"
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PREDECL_DLIST(mgmt_cmt_infos);
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struct mgmt_ds_ctx;
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/*
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* Rollback specific commit from commit history.
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*
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* vty
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* VTY context.
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*
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* cmtid_str
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* Specific commit id from commit history.
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*
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* Returns:
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* 0 on success, -1 on failure.
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*/
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extern int mgmt_history_rollback_by_id(struct vty *vty, const char *cmtid_str);
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/*
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* Rollback n commits from commit history.
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*
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* vty
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* VTY context.
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*
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* num_cmts
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* Number of commits to be rolled back.
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*
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* Returns:
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* 0 on success, -1 on failure.
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*/
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extern int mgmt_history_rollback_n(struct vty *vty, int num_cmts);
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extern void mgmt_history_rollback_complete(bool success);
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/*
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* Show mgmt commit history.
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*/
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extern void show_mgmt_cmt_history(struct vty *vty);
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extern void mgmt_history_new_record(struct mgmt_ds_ctx *ds_ctx);
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extern void mgmt_history_destroy(void);
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extern void mgmt_history_init(void);
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/*
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* 012345678901234567890123456789
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* 2023-12-31T12:12:12,012345678
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* 20231231121212012345678
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*/
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#define MGMT_LONG_TIME_FMT "%Y-%m-%dT%H:%M:%S"
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#define MGMT_LONG_TIME_MAX_LEN 30
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#define MGMT_SHORT_TIME_FMT "%Y%m%d%H%M%S"
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#define MGMT_SHORT_TIME_MAX_LEN 24
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static inline const char *
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mgmt_time_to_string(struct timespec *tv, bool long_fmt, char *buffer, size_t sz)
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{
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struct tm tm;
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size_t n;
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localtime_r(&tv->tv_sec, &tm);
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if (long_fmt) {
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n = strftime(buffer, sz, MGMT_LONG_TIME_FMT, &tm);
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assert(n < sz);
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snprintf(&buffer[n], sz - n, ",%09lu", tv->tv_nsec);
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} else {
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n = strftime(buffer, sz, MGMT_SHORT_TIME_FMT, &tm);
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assert(n < sz);
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snprintf(&buffer[n], sz - n, "%09lu", tv->tv_nsec);
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}
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return buffer;
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}
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static inline const char *mgmt_realtime_to_string(struct timeval *tv, char *buf,
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size_t sz)
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{
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struct timespec ts = {.tv_sec = tv->tv_sec,
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.tv_nsec = tv->tv_usec * 1000};
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return mgmt_time_to_string(&ts, true, buf, sz);
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}
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#endif /* _FRR_MGMTD_HISTORY_H_ */
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