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-rw-r--r--libbb/procps.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/libbb/procps.c b/libbb/procps.c
index 05eefe0..4edc54d 100644
--- a/libbb/procps.c
+++ b/libbb/procps.c
@@ -588,12 +588,14 @@ void FAST_FUNC read_cmdline(char *buf, int col, unsigned pid, const char *comm)
buf[sz] = ' ';
sz--;
}
+ if (base[0] == '-') /* "-sh" (login shell)? */
+ base++;
/* If comm differs from argv0, prepend "{comm} ".
* It allows to see thread names set by prctl(PR_SET_NAME).
*/
- if (base[0] == '-') /* "-sh" (login shell)? */
- base++;
+ if (!comm)
+ return;
comm_len = strlen(comm);
/* Why compare up to comm_len, not COMM_LEN-1?
* Well, some processes rewrite argv, and use _spaces_ there
@@ -612,7 +614,7 @@ void FAST_FUNC read_cmdline(char *buf, int col, unsigned pid, const char *comm)
buf[col - 1] = '\0';
}
} else {
- snprintf(buf, col, "[%s]", comm);
+ snprintf(buf, col, "[%s]", comm ? comm : "?");
}
}