diff options
Diffstat (limited to 'src/process_iterator_linux.c')
| -rw-r--r-- | src/process_iterator_linux.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/src/process_iterator_linux.c b/src/process_iterator_linux.c index da3fb07..a15be45 100644 --- a/src/process_iterator_linux.c +++ b/src/process_iterator_linux.c @@ -1,3 +1,5 @@ +#include <sys/vfs.h> + static int get_boot_time() { int uptime; @@ -18,8 +20,22 @@ static int get_boot_time() return now - uptime; } +static int check_proc() +{ + struct statfs mnt; + if (statfs("/proc", &mnt) < 0) + return 0; + if (mnt.f_type!=0x9fa0) + return 0; + return 1; +} + int init_process_iterator(struct process_iterator *it, struct process_filter *filter) { + if (!check_proc()) { + fprintf(stderr, "procfs is not mounted!\nAborting\n"); + exit(-2); + } //open a directory stream to /proc directory if ((it->dip = opendir("/proc")) == NULL) { @@ -60,13 +76,13 @@ static int read_process_info(pid_t pid, struct process *p) p->starttime = atoi(token) / sysconf(_SC_CLK_TCK); //read command line sprintf(exefile,"/proc/%d/cmdline", p->pid); - fd = fopen(statfile, "r"); + fd = fopen(exefile, "r"); if (fgets(buffer, sizeof(buffer), fd)==NULL) { fclose(fd); return -1; } fclose(fd); - sscanf(buffer, "%s", (char*)&p->command); + sscanf(buffer, "%s", p->command); return 0; } |