X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fjournal%2Fjournalctl.c;h=daf428106518a55632d0297e282aafd419250b19;hp=52db7a9365185adfd94475f8342c444f1bd0c533;hb=509407003de0c77259e5e46b567d2a464acbb6f4;hpb=62f21ec91ad8e7e24079962f4df066b0094fe68d diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c index 52db7a936..daf428106 100644 --- a/src/journal/journalctl.c +++ b/src/journal/journalctl.c @@ -6,16 +6,16 @@ Copyright 2011 Lennart Poettering systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU General Public License + You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see . ***/ @@ -29,6 +29,7 @@ #include #include #include +#include #include @@ -38,6 +39,8 @@ #include "pager.h" #include "logs-show.h" +#define SD_JOURNALCTL_EXE "_EXE=" + static OutputMode arg_output = OUTPUT_SHORT; static bool arg_follow = false; static bool arg_show_all = false; @@ -45,21 +48,25 @@ static bool arg_no_pager = false; static int arg_lines = -1; static bool arg_no_tail = false; static bool arg_new_id128 = false; +static bool arg_quiet = false; +static bool arg_local = false; static int help(void) { - printf("%s [OPTIONS...] {COMMAND} ...\n\n" + printf("%s [OPTIONS...] [MATCH]\n\n" "Send control commands to or query the journal.\n\n" " -h --help Show this help\n" " --version Show package version\n" " --no-pager Do not pipe output into a pager\n" - " -a --all Show all properties, including long and unprintable\n" + " -a --all Show all fields, including long and unprintable\n" " -f --follow Follow journal\n" " -n --lines=INTEGER Journal entries to show\n" " --no-tail Show all lines, even in follow mode\n" " -o --output=STRING Change journal output mode (short, short-monotonic,\n" " verbose, export, json, cat)\n" - " --new-id128 Generate a new 128 Bit id\n", + " -q --quiet Don't show privilege warning\n" + " --new-id128 Generate a new 128 Bit id\n" + " -l --local Only local entries\n", program_invocation_short_name); return 0; @@ -84,6 +91,8 @@ static int parse_argv(int argc, char *argv[]) { { "lines", required_argument, NULL, 'n' }, { "no-tail", no_argument, NULL, ARG_NO_TAIL }, { "new-id128", no_argument, NULL, ARG_NEW_ID128 }, + { "quiet", no_argument, NULL, 'q' }, + { "local", no_argument, NULL, 'l' }, { NULL, 0, NULL, 0 } }; @@ -92,7 +101,7 @@ static int parse_argv(int argc, char *argv[]) { assert(argc >= 0); assert(argv); - while ((c = getopt_long(argc, argv, "hfo:an:", options, NULL)) >= 0) { + while ((c = getopt_long(argc, argv, "hfo:an:ql", options, NULL)) >= 0) { switch (c) { @@ -143,6 +152,14 @@ static int parse_argv(int argc, char *argv[]) { arg_new_id128 = true; break; + case 'q': + arg_quiet = true; + break; + + case 'l': + arg_local = true; + break; + case '?': return -EINVAL; @@ -191,6 +208,8 @@ int main(int argc, char *argv[]) { sd_journal *j = NULL; unsigned line = 0; bool need_seek = false; + struct stat st; + char* journal_exe_buff; log_parse_environment(); log_open(); @@ -204,14 +223,37 @@ int main(int argc, char *argv[]) { goto finish; } - r = sd_journal_open(&j, 0); +#ifdef HAVE_ACL + if (!arg_quiet && geteuid() != 0 && in_group("adm") <= 0) + log_warning("Showing user generated messages only. Users in the group 'adm' can see all messages. Pass -q to turn this message off."); +#endif + + r = sd_journal_open(&j, arg_local ? SD_JOURNAL_LOCAL_ONLY : 0); if (r < 0) { log_error("Failed to open journal: %s", strerror(-r)); goto finish; } for (i = optind; i < argc; i++) { - r = sd_journal_add_match(j, argv[i], strlen(argv[i])); + if (strchr(argv[i], '=')) { + r = sd_journal_add_match(j, argv[i], strlen(argv[i])); + } else { + if (stat(argv[i], &st) < 0) { + log_error("Failed to add match: %s", strerror(-r)); + goto finish; /* maybe try sd_journal_add_match() when stat() fails, + * even thought we know there is no '=' ? */ + } else if (S_ISREG(st.st_mode) && + S_IXUSR & st.st_mode) { + journal_exe_buff = malloc(strlen(SD_JOURNALCTL_EXE) + strlen(argv[i]) + 1); + journal_exe_buff = strcpy(journal_exe_buff, SD_JOURNALCTL_EXE); + strncat(journal_exe_buff, argv[i], strlen(argv[i])); + r = sd_journal_add_match(j, journal_exe_buff, strlen(journal_exe_buff)); + free(journal_exe_buff); + } else { + log_error("File is not a regular file or is not executable: %s", argv[i]); + goto finish; + } + } if (r < 0) { log_error("Failed to add match: %s", strerror(-r)); goto finish; @@ -272,7 +314,7 @@ int main(int argc, char *argv[]) { line ++; - r = output_journal(j, arg_output, line, arg_show_all); + r = output_journal(j, arg_output, line, 0, arg_show_all); if (r < 0) goto finish; @@ -282,7 +324,7 @@ int main(int argc, char *argv[]) { if (!arg_follow) break; - r = fd_wait_for_event(fd, POLLIN); + r = fd_wait_for_event(fd, POLLIN, (usec_t) -1); if (r < 0) { log_error("Couldn't wait for event: %s", strerror(-r)); goto finish;