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Thu, 29 Jan 2026 07:54:59 -0800 (PST) List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-questions@freebsd.org Sender: owner-freebsd-questions@FreeBSD.org MIME-Version: 1.0 From: Jishan Alam Date: Thu, 29 Jan 2026 21:24:45 +0530 X-Gm-Features: AZwV_QgArEUyeWFrCD9Rz4t_5e9g9eyb8GW3wFCK1XriHo1zID5AUlm-JbunfjY Message-ID: Subject: Root Directory of a Process To: "freebsd-questions@freebsd.org" , "questions@freebsd.org" Content-Type: text/plain; charset="UTF-8" X-Spamd-Result: default: False [-4.99 / 15.00]; ARC_ALLOW(-1.00)[google.com:s=arc-20240605:i=1]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-0.999]; NEURAL_HAM_SHORT(-1.00)[-0.995]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; MIME_GOOD(-0.10)[text/plain]; TO_DN_EQ_ADDR_ALL(0.00)[]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_TWO(0.00)[2]; FREEMAIL_ENVFROM(0.00)[gmail.com]; FREEMAIL_FROM(0.00)[gmail.com]; DKIM_TRACE(0.00)[gmail.com:+]; RCVD_COUNT_ONE(0.00)[1]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; TO_MATCH_ENVRCPT_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MISSING_XM_UA(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; MLMMJ_DEST(0.00)[freebsd-questions@freebsd.org]; MID_RHS_MATCH_FROMTLD(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::841:from] X-Rspamd-Queue-Id: 4f23cp46PWz47vB X-Spamd-Bar: ---- Hello, I wanted to know how to get the root dir of a process using sysctl or other libs, sysctl leads me to kinfo_proc where ki_pd contains pwddesc-> pd_pwd which only works in kernel? if not how to get it safely is there any way. Context: Im porting an app from Linux where the app reads from /proc//root using readlink but since freebsd doesnt have it, how to emulated if it can be emulated. Thank You. -- Best Regards, Jishan Alam