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| author | Denys Vlasenko | 2015-10-24 03:45:57 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2015-10-24 03:45:57 +0200 |
| commit | 049b007865e2dfcfd2093db732b3bfbcb75b5c77 (patch) | |
| tree | 8fa3a2d3bbe96bdf5177ff9746aea7167a6a6538 | |
| parent | 00da72bee09cfe4a757cbba4465a76269dae9f43 (diff) | |
| download | busybox-049b007865e2dfcfd2093db732b3bfbcb75b5c77.zip busybox-049b007865e2dfcfd2093db732b3bfbcb75b5c77.tar.gz | |
pmap: fix bogus {no such process} comm field text
function old new delta
read_cmdline 246 266 +20
procps_get_maps 196 193 -3
packed_usage 30413 30404 -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 20/-12) Total: 8 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | libbb/procps.c | 8 | ||||
| -rw-r--r-- | procps/pmap.c | 4 |
2 files changed, 7 insertions, 5 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 : "?"); } } diff --git a/procps/pmap.c b/procps/pmap.c index fd995a5..aa221cf 100644 --- a/procps/pmap.c +++ b/procps/pmap.c @@ -20,7 +20,7 @@ //usage:#define pmap_trivial_usage //usage: "[-xq] PID" //usage:#define pmap_full_usage "\n\n" -//usage: "Display detailed process memory usage" +//usage: "Display process memory usage" //usage: "\n" //usage: "\n -x Show details" //usage: "\n -q Quiet" @@ -66,7 +66,7 @@ static int procps_get_maps(pid_t pid, unsigned opt) int ret; char buf[256]; - read_cmdline(buf, sizeof(buf), pid, "no such process"); + read_cmdline(buf, sizeof(buf), pid, NULL); printf("%u: %s\n", (int)pid, buf); if (!(opt & OPT_q) && (opt & OPT_x)) |