diff options
Diffstat (limited to 'usr/src/lib/libproc/common/Pcontrol.c')
| -rw-r--r-- | usr/src/lib/libproc/common/Pcontrol.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/usr/src/lib/libproc/common/Pcontrol.c b/usr/src/lib/libproc/common/Pcontrol.c index 00e1c9f0a6..e30d5758cb 100644 --- a/usr/src/lib/libproc/common/Pcontrol.c +++ b/usr/src/lib/libproc/common/Pcontrol.c @@ -2,9 +2,8 @@ * CDDL HEADER START * * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. @@ -33,6 +32,7 @@ #include <ctype.h> #include <fcntl.h> #include <string.h> +#include <strings.h> #include <memory.h> #include <errno.h> #include <dirent.h> @@ -56,6 +56,7 @@ int _libproc_debug; /* set non-zero to enable debugging printfs */ sigset_t blockable_sigs; /* signals to block when we need to be safe */ static int minfd; /* minimum file descriptor returned by dupfd(fd, 0) */ +char procfs_path[PATH_MAX] = "/proc"; /* * Function prototypes for static routines in this module. @@ -97,6 +98,12 @@ _libproc_init(void) (void) sigdelset(&blockable_sigs, SIGSTOP); } +void +Pset_procfs_path(const char *path) +{ + (void) snprintf(procfs_path, sizeof (procfs_path), "%s", path); +} + /* * Call set_minfd() once before calling dupfd() several times. * We assume that the application will not reduce its current file @@ -168,7 +175,7 @@ Pxcreate(const char *file, /* executable file name */ size_t len) /* size of the path buffer */ { char execpath[PATH_MAX]; - char procname[100]; + char procname[PATH_MAX]; struct ps_prochandle *P; pid_t pid; int fd; @@ -238,7 +245,8 @@ Pxcreate(const char *file, /* executable file name */ /* * Open the /proc/pid files. */ - (void) sprintf(procname, "/proc/%d/", (int)pid); + (void) snprintf(procname, sizeof (procname), "%s/%d/", + procfs_path, (int)pid); fname = procname + strlen(procname); (void) set_minfd(); @@ -505,7 +513,7 @@ Pgrab(pid_t pid, int flags, int *perr) { struct ps_prochandle *P; int fd, omode; - char procname[100]; + char procname[PATH_MAX]; char *fname; int rc = 0; @@ -545,7 +553,8 @@ again: /* Come back here if we lose it in the Window of Vulnerability */ /* * Open the /proc/pid files */ - (void) sprintf(procname, "/proc/%d/", (int)pid); + (void) snprintf(procname, sizeof (procname), "%s/%d/", + procfs_path, (int)pid); fname = procname + strlen(procname); (void) set_minfd(); @@ -1264,7 +1273,7 @@ int Preopen(struct ps_prochandle *P) { int fd; - char procname[100]; + char procname[PATH_MAX]; char *fname; if (P->state == PS_DEAD || P->state == PS_IDLE) @@ -1275,7 +1284,8 @@ Preopen(struct ps_prochandle *P) Pdestroy_agent(P); } - (void) sprintf(procname, "/proc/%d/", (int)P->pid); + (void) snprintf(procname, sizeof (procname), "%s/%d/", + procfs_path, (int)P->pid); fname = procname + strlen(procname); (void) strcpy(fname, "as"); @@ -2653,13 +2663,13 @@ static prheader_t * read_lfile(struct ps_prochandle *P, const char *lname) { prheader_t *Lhp; - char lpath[64]; + char lpath[PATH_MAX]; struct stat64 statb; int fd; size_t size; ssize_t rval; - (void) snprintf(lpath, sizeof (lpath), "/proc/%d/%s", + (void) snprintf(lpath, sizeof (lpath), "%s/%d/%s", procfs_path, (int)P->status.pr_pid, lname); if ((fd = open(lpath, O_RDONLY)) < 0 || fstat64(fd, &statb) != 0) { if (fd >= 0) @@ -2931,7 +2941,7 @@ Lgrab(struct ps_prochandle *P, lwpid_t lwpid, int *perr) struct ps_lwphandle **Lp; struct ps_lwphandle *L; int fd; - char procname[100]; + char procname[PATH_MAX]; char *fname; int rc = 0; @@ -2974,7 +2984,8 @@ Lgrab(struct ps_prochandle *P, lwpid_t lwpid, int *perr) /* * Open the /proc/<pid>/lwp/<lwpid> files */ - (void) sprintf(procname, "/proc/%d/lwp/%d/", (int)P->pid, (int)lwpid); + (void) snprintf(procname, sizeof (procname), "%s/%d/lwp/%d/", + procfs_path, (int)P->pid, (int)lwpid); fname = procname + strlen(procname); (void) set_minfd(); |