de7b3b9222
A PID should be specified with --ns: $ pgrep --ns 12345 which will only match the processes which belong to to the same 6 namespaces. It is also possible to specify which namespaces to test: $ pgrep --ns 12345 --nslist mnt,net,ipc which will match processes that belong to the same mount, network and IPC namespaces as PID 12345. Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
33 lines
599 B
C
33 lines
599 B
C
#include <errno.h>
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#include <error.h>
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#include <stdio_ext.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "proc/readproc.h"
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#include "nsutils.h"
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/* we need to fill in only namespace information */
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int ns_read(pid_t pid, proc_t *ns_task)
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{
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struct stat st;
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char buff[50];
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int i, rc = 0;
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for (i = 0; i < NUM_NS; i++) {
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snprintf(buff, sizeof(buff), "/proc/%i/ns/%s", pid,
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get_ns_name(i));
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if (stat(buff, &st)) {
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if (errno != ENOENT)
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rc = errno;
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ns_task->ns[i] = 0;
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continue;
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}
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ns_task->ns[i] = st.st_ino;
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}
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return rc;
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}
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