lib/dialects/linux/dlsof.c - master - githubmirror/lsof

lib/dialects/linux/dlsof.c
125 строк3 KB
Jiajie Chen
Drop self-maintained vbuf/vsz in open_proc_stream for thread safety
15 апр 2026, 09:24
15 апр 2026, 09:24f39b6ef
/*
 * dlsof.c - Linux dialect-specific implementations
 */

#include "common.h"
#include "dlsof.h"

/*
 * lsof_dialect_destroy() - clean up dialect-specific resources
 */

void lsof_dialect_destroy(struct lsof_context *ctx) {
    int i;
    struct llock *lp, *np;
#if defined(HASEPTOPTS)
    pxinfo_t *pp, *pnp;
#endif

    /* Free lock hash table */
    if (LckH) {
        for (i = 0; i < PIDBUCKS; i++) {
            for (lp = LckH[i]; lp; lp = np) {
                np = lp->next;
                (void)free((FREE_P *)lp);
            }
            LckH[i] = (struct llock *)NULL;
        }
        CLEAN(LckH);
    }

#if defined(HASEPTOPTS)
    /* Free pipe endpoint hash */
    if (Pinfo) {
        for (i = 0; i < PINFOBUCKS; i++) {
            for (pp = Pinfo[i]; pp; pp = pnp) {
                pnp = pp->next;
                (void)free((FREE_P *)pp);
            }
            Pinfo[i] = (pxinfo_t *)NULL;
        }
        CLEAN(Pinfo);
    }

#    if defined(HASPTYEPT)
    /* Free PTY endpoint hash */
    if (PtyInfo) {
        for (i = 0; i < PINFOBUCKS; i++) {
            for (pp = PtyInfo[i]; pp; pp = pnp) {
                pnp = pp->next;
                (void)free((FREE_P *)pp);
            }
            PtyInfo[i] = (pxinfo_t *)NULL;
        }
        CLEAN(PtyInfo);
    }
#    endif

    /* Free message queue endpoint hash */
    if (PSXMQinfo) {
        for (i = 0; i < PINFOBUCKS; i++) {
            for (pp = PSXMQinfo[i]; pp; pp = pnp) {
                pnp = pp->next;
                (void)free((FREE_P *)pp);
            }
            PSXMQinfo[i] = (pxinfo_t *)NULL;
        }
        CLEAN(PSXMQinfo);
    }

    /* Free eventfd endpoint hash */
    if (EvtFDinfo) {
        for (i = 0; i < PINFOBUCKS; i++) {
            for (pp = EvtFDinfo[i]; pp; pp = pnp) {
                pnp = pp->next;
                (void)free((FREE_P *)pp);
            }
            EvtFDinfo[i] = (pxinfo_t *)NULL;
        }
        CLEAN(EvtFDinfo);
    }
#endif /* defined(HASEPTOPTS) */

    /* Free field pointers */
    if (Fp) {
        CLEAN(Fp);
        Fpa = 0;
    }

    /* Free /proc/FD/fd buffer */
    if (Dpath) {
        CLEAN(Dpath);
        Dpathl = 0;
    }

    /* Free /proc/FD/fdinfo buffer */
    if (Ipath) {
        CLEAN(Ipath);
        Ipathl = 0;
    }

    /* Free /proc/FD/fdinfo/%d buffer */
    if (Pathi) {
        CLEAN(Pathi);
        Pathil = 0;
    }

    /* Free /proc/FD/ temp buffer */
    if (Path) {
        CLEAN(Path);
        Pathl = 0;
    }
#if defined(HASMNTSUP)
    if (MSHash) {
        for (int h = 0; h < HASHMNT; h++) {
            mntsup_t *mp, *mpn;
            for (mp = MSHash[h]; mp; mp = mpn) {
                mpn = mp->next;
                CLEAN(mp->dir_name);
                CLEAN(mp);
            }
        }
        CLEAN(MSHash);
    }
#endif
}