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Merge pull request #2032 from RincewindsHat/cleanup/check_apt

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Cleanup/check apt
This commit is contained in:
Lorenz Kästle 2024-11-08 22:59:54 +01:00 committed by GitHub
commit ef39064f51
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GPG key ID: B5690EEEBB952194
2 changed files with 343 additions and 296 deletions
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1
.clang-format
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@ -9,3 +9,4 @@ IndentPPDirectives: AfterHash
SortIncludes: Never
AllowShortEnumsOnASingleLine: false
BinPackArguments: true
InsertBraces: true

638
plugins/check_apt.c
View file

@ -1,33 +1,33 @@
/*****************************************************************************
*
* Monitoring check_apt plugin
*
* License: GPL
* Copyright (c) 2006-2024 Monitoring Plugins Development Team
*
* Original author: Sean Finney
*
* Description:
*
* This file contains the check_apt plugin
*
* Check for available updates in apt package management systems
*
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*****************************************************************************/
*
* Monitoring check_apt plugin
*
* License: GPL
* Copyright (c) 2006-2024 Monitoring Plugins Development Team
*
* Original author: Sean Finney
*
* Description:
*
* This file contains the check_apt plugin
*
* Check for available updates in apt package management systems
*
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*****************************************************************************/
const char *progname = "check_apt";
const char *copyright = "2006-2024";
@ -39,17 +39,21 @@ const char *email = "devel@monitoring-plugins.org";
#include "regex.h"
/* some constants */
typedef enum { UPGRADE, DIST_UPGRADE, NO_UPGRADE } upgrade_type;
typedef enum {
UPGRADE,
DIST_UPGRADE,
NO_UPGRADE
} upgrade_type;
/* Character for hidden input file option (for testing). */
#define INPUT_FILE_OPT CHAR_MAX+1
#define INPUT_FILE_OPT CHAR_MAX + 1
/* the default opts can be overridden via the cmdline */
#define UPGRADE_DEFAULT_OPTS "-o 'Debug::NoLocking=true' -s -qq"
#define UPDATE_DEFAULT_OPTS "-q"
#define UPDATE_DEFAULT_OPTS "-q"
/* until i commit the configure.in patch which gets this, i'll define
* it here as well */
#ifndef PATH_TO_APTGET
# define PATH_TO_APTGET "/usr/bin/apt-get"
# define PATH_TO_APTGET "/usr/bin/apt-get"
#endif /* PATH_TO_APTGET */
/* String found at the beginning of the apt output lines we're interested in */
#define PKGINST_PREFIX "Inst "
@ -57,97 +61,108 @@ typedef enum { UPGRADE, DIST_UPGRADE, NO_UPGRADE } upgrade_type;
#define SECURITY_RE "^[^\\(]*\\(.* (Debian-Security:|Ubuntu:[^/]*/[^-]*-security)"
/* some standard functions */
int process_arguments(int, char **);
void print_help(void);
static int process_arguments(int /*argc*/, char ** /*argv*/);
static void print_help(void);
void print_usage(void);
/* construct the appropriate apt-get cmdline */
char* construct_cmdline(upgrade_type u, const char *opts);
static char *construct_cmdline(upgrade_type u, const char *opts);
/* run an apt-get update */
int run_update(void);
static int run_update(void);
typedef struct {
int errorcode;
int package_count;
int security_package_count;
char **packages_list;
char **secpackages_list;
} run_upgrade_result;
/* run an apt-get upgrade */
int run_upgrade(int *pkgcount, int *secpkgcount, char ***pkglist, char ***secpkglist);
static run_upgrade_result run_upgrade(void);
/* add another clause to a regexp */
char* add_to_regexp(char *expr, const char *next);
static char *add_to_regexp(char *expr, const char *next);
/* extract package name from Inst line */
char* pkg_name(char *line);
static char *pkg_name(char *line);
/* string comparison function for qsort */
int cmpstringp(const void *p1, const void *p2);
static int cmpstringp(const void *p1, const void *p2);
/* configuration variables */
static int verbose = 0; /* -v */
static bool list = false; /* list packages available for upgrade */
static bool do_update = false; /* whether to call apt-get update */
static bool only_critical = false; /* whether to warn about non-critical updates */
static int verbose = 0; /* -v */
static bool list = false; /* list packages available for upgrade */
static bool do_update = false; /* whether to call apt-get update */
static bool only_critical = false; /* whether to warn about non-critical updates */
static upgrade_type upgrade = UPGRADE; /* which type of upgrade to do */
static char *upgrade_opts = NULL; /* options to override defaults for upgrade */
static char *update_opts = NULL; /* options to override defaults for update */
static char *do_include = NULL; /* regexp to only include certain packages */
static char *do_exclude = NULL; /* regexp to only exclude certain packages */
static char *do_critical = NULL; /* regexp specifying critical packages */
static char *input_filename = NULL; /* input filename for testing */
static char *upgrade_opts = NULL; /* options to override defaults for upgrade */
static char *update_opts = NULL; /* options to override defaults for update */
static char *do_include = NULL; /* regexp to only include certain packages */
static char *do_exclude = NULL; /* regexp to only exclude certain packages */
static char *do_critical = NULL; /* regexp specifying critical packages */
static char *input_filename = NULL; /* input filename for testing */
/* number of packages available for upgrade to return WARNING status */
static int packages_warning = 1;
/* other global variables */
static int stderr_warning = 0; /* if a cmd issued output on stderr */
static int exec_warning = 0; /* if a cmd exited non-zero */
int main (int argc, char **argv) {
int result=STATE_UNKNOWN, packages_available=0, sec_count=0;
char **packages_list=NULL, **secpackages_list=NULL;
static int stderr_warning = 0; /* if a cmd issued output on stderr */
static int exec_warning = 0; /* if a cmd exited non-zero */
int main(int argc, char **argv) {
/* Parse extra opts if any */
argv=np_extra_opts(&argc, argv, progname);
argv = np_extra_opts(&argc, argv, progname);
if (process_arguments(argc, argv) == ERROR)
if (process_arguments(argc, argv) == ERROR) {
usage_va(_("Could not parse arguments"));
}
/* Set signal handling and alarm timeout */
if (signal (SIGALRM, timeout_alarm_handler) == SIG_ERR) {
if (signal(SIGALRM, timeout_alarm_handler) == SIG_ERR) {
usage_va(_("Cannot catch SIGALRM"));
}
/* handle timeouts gracefully... */
alarm (timeout_interval);
alarm(timeout_interval);
int result = STATE_UNKNOWN;
/* if they want to run apt-get update first... */
if(do_update) result = run_update();
if (do_update) {
result = run_update();
}
/* apt-get upgrade */
result = max_state(result, run_upgrade(&packages_available, &sec_count, &packages_list, &secpackages_list));
run_upgrade_result upgrad_res = run_upgrade();
if(sec_count > 0){
result = max_state(result, upgrad_res.errorcode);
int packages_available = upgrad_res.package_count;
int sec_count = upgrad_res.security_package_count;
char **packages_list = upgrad_res.packages_list;
char **secpackages_list = upgrad_res.secpackages_list;
if (sec_count > 0) {
result = max_state(result, STATE_CRITICAL);
} else if(packages_available >= packages_warning && only_critical == false){
} else if (packages_available >= packages_warning && only_critical == false) {
result = max_state(result, STATE_WARNING);
} else if(result > STATE_UNKNOWN){
} else if (result > STATE_UNKNOWN) {
result = STATE_UNKNOWN;
}
printf(_("APT %s: %d packages available for %s (%d critical updates). %s%s%s%s|available_upgrades=%d;;;0 critical_updates=%d;;;0\n"),
state_text(result),
packages_available,
(upgrade==DIST_UPGRADE)?"dist-upgrade":"upgrade",
sec_count,
(stderr_warning)?" warnings detected":"",
(stderr_warning && exec_warning)?",":"",
(exec_warning)?" errors detected":"",
(stderr_warning||exec_warning)?".":"",
packages_available,
sec_count
);
state_text(result), packages_available, (upgrade == DIST_UPGRADE) ? "dist-upgrade" : "upgrade", sec_count,
(stderr_warning) ? " warnings detected" : "", (stderr_warning && exec_warning) ? "," : "",
(exec_warning) ? " errors detected" : "", (stderr_warning || exec_warning) ? "." : "", packages_available, sec_count);
if(list) {
qsort(secpackages_list, sec_count, sizeof(char*), cmpstringp);
qsort(packages_list, packages_available-sec_count, sizeof(char*), cmpstringp);
if (list) {
qsort(secpackages_list, sec_count, sizeof(char *), cmpstringp);
qsort(packages_list, packages_available - sec_count, sizeof(char *), cmpstringp);
for(int i = 0; i < sec_count; i++)
for (int i = 0; i < sec_count; i++) {
printf("%s (security)\n", secpackages_list[i]);
}
if (only_critical == false) {
for(int i = 0; i < packages_available - sec_count; i++)
for (int i = 0; i < packages_available - sec_count; i++) {
printf("%s\n", packages_list[i]);
}
}
}
@ -155,34 +170,32 @@ int main (int argc, char **argv) {
}
/* process command-line arguments */
int process_arguments (int argc, char **argv) {
int c;
int process_arguments(int argc, char **argv) {
static struct option longopts[] = {{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{"verbose", no_argument, 0, 'v'},
{"timeout", required_argument, 0, 't'},
{"update", optional_argument, 0, 'u'},
{"upgrade", optional_argument, 0, 'U'},
{"no-upgrade", no_argument, 0, 'n'},
{"dist-upgrade", optional_argument, 0, 'd'},
{"list", no_argument, false, 'l'},
{"include", required_argument, 0, 'i'},
{"exclude", required_argument, 0, 'e'},
{"critical", required_argument, 0, 'c'},
{"only-critical", no_argument, 0, 'o'},
{"input-file", required_argument, 0, INPUT_FILE_OPT},
{"packages-warning", required_argument, 0, 'w'},
{0, 0, 0, 0}};
static struct option longopts[] = {
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{"verbose", no_argument, 0, 'v'},
{"timeout", required_argument, 0, 't'},
{"update", optional_argument, 0, 'u'},
{"upgrade", optional_argument, 0, 'U'},
{"no-upgrade", no_argument, 0, 'n'},
{"dist-upgrade", optional_argument, 0, 'd'},
{"list", no_argument, false, 'l'},
{"include", required_argument, 0, 'i'},
{"exclude", required_argument, 0, 'e'},
{"critical", required_argument, 0, 'c'},
{"only-critical", no_argument, 0, 'o'},
{"input-file", required_argument, 0, INPUT_FILE_OPT},
{"packages-warning", required_argument, 0, 'w'},
{0, 0, 0, 0}
};
while (true) {
int option_char = getopt_long(argc, argv, "hVvt:u::U::d::nli:e:c:ow:", longopts, NULL);
while(1) {
c = getopt_long(argc, argv, "hVvt:u::U::d::nli:e:c:ow:", longopts, NULL);
if (option_char == -1 || option_char == EOF || option_char == 1) {
break;
}
if(c == -1 || c == EOF || c == 1) break;
switch(c) {
switch (option_char) {
case 'h':
print_help();
exit(STATE_UNKNOWN);
@ -193,46 +206,52 @@ int process_arguments (int argc, char **argv) {
verbose++;
break;
case 't':
timeout_interval=atoi(optarg);
timeout_interval = atoi(optarg);
break;
case 'd':
upgrade=DIST_UPGRADE;
if(optarg!=NULL){
upgrade_opts=strdup(optarg);
if(upgrade_opts==NULL) die(STATE_UNKNOWN, "strdup failed");
upgrade = DIST_UPGRADE;
if (optarg != NULL) {
upgrade_opts = strdup(optarg);
if (upgrade_opts == NULL) {
die(STATE_UNKNOWN, "strdup failed");
}
}
break;
case 'U':
upgrade=UPGRADE;
if(optarg!=NULL){
upgrade_opts=strdup(optarg);
if(upgrade_opts==NULL) die(STATE_UNKNOWN, "strdup failed");
upgrade = UPGRADE;
if (optarg != NULL) {
upgrade_opts = strdup(optarg);
if (upgrade_opts == NULL) {
die(STATE_UNKNOWN, "strdup failed");
}
}
break;
case 'n':
upgrade=NO_UPGRADE;
upgrade = NO_UPGRADE;
break;
case 'u':
do_update=true;
if(optarg!=NULL){
update_opts=strdup(optarg);
if(update_opts==NULL) die(STATE_UNKNOWN, "strdup failed");
do_update = true;
if (optarg != NULL) {
update_opts = strdup(optarg);
if (update_opts == NULL) {
die(STATE_UNKNOWN, "strdup failed");
}
}
break;
case 'l':
list=true;
list = true;
break;
case 'i':
do_include=add_to_regexp(do_include, optarg);
do_include = add_to_regexp(do_include, optarg);
break;
case 'e':
do_exclude=add_to_regexp(do_exclude, optarg);
do_exclude = add_to_regexp(do_exclude, optarg);
break;
case 'c':
do_critical=add_to_regexp(do_critical, optarg);
do_critical = add_to_regexp(do_critical, optarg);
break;
case 'o':
only_critical=true;
only_critical = true;
break;
case INPUT_FILE_OPT:
input_filename = optarg;
@ -249,68 +268,78 @@ int process_arguments (int argc, char **argv) {
return OK;
}
/* run an apt-get upgrade */
int run_upgrade(int *pkgcount, int *secpkgcount, char ***pkglist, char ***secpkglist){
int result=STATE_UNKNOWN, regres=0, pc=0, spc=0;
struct output chld_out, chld_err;
regex_t ireg, ereg, sreg;
char *cmdline=NULL, rerrbuf[64];
run_upgrade_result run_upgrade(void) {
regex_t ereg;
/* initialize ereg as it is possible it is printed while uninitialized */
memset(&ereg, '\0', sizeof(ereg.buffer));
if(upgrade==NO_UPGRADE) return STATE_OK;
run_upgrade_result result = {
.errorcode = STATE_UNKNOWN,
};
if (upgrade == NO_UPGRADE) {
result.errorcode = STATE_OK;
return result;
}
int regres = 0;
regex_t ireg;
char rerrbuf[64];
/* compile the regexps */
if (do_include != NULL) {
regres=regcomp(&ireg, do_include, REG_EXTENDED);
if (regres!=0) {
regres = regcomp(&ireg, do_include, REG_EXTENDED);
if (regres != 0) {
regerror(regres, &ireg, rerrbuf, 64);
die(STATE_UNKNOWN, _("%s: Error compiling regexp: %s"), progname, rerrbuf);
}
}
if(do_exclude!=NULL){
regres=regcomp(&ereg, do_exclude, REG_EXTENDED);
if(regres!=0) {
if (do_exclude != NULL) {
regres = regcomp(&ereg, do_exclude, REG_EXTENDED);
if (regres != 0) {
regerror(regres, &ereg, rerrbuf, 64);
die(STATE_UNKNOWN, _("%s: Error compiling regexp: %s"),
progname, rerrbuf);
die(STATE_UNKNOWN, _("%s: Error compiling regexp: %s"), progname, rerrbuf);
}
}
regex_t sreg;
const char *crit_ptr = (do_critical != NULL) ? do_critical : SECURITY_RE;
regres=regcomp(&sreg, crit_ptr, REG_EXTENDED);
if(regres!=0) {
regres = regcomp(&sreg, crit_ptr, REG_EXTENDED);
if (regres != 0) {
regerror(regres, &ereg, rerrbuf, 64);
die(STATE_UNKNOWN, _("%s: Error compiling regexp: %s"),
progname, rerrbuf);
die(STATE_UNKNOWN, _("%s: Error compiling regexp: %s"), progname, rerrbuf);
}
cmdline=construct_cmdline(upgrade, upgrade_opts);
struct output chld_out;
struct output chld_err;
char *cmdline = NULL;
cmdline = construct_cmdline(upgrade, upgrade_opts);
if (input_filename != NULL) {
/* read input from a file for testing */
result = cmd_file_read(input_filename, &chld_out, 0);
result.errorcode = cmd_file_read(input_filename, &chld_out, 0);
} else {
/* run the upgrade */
result = np_runcmd(cmdline, &chld_out, &chld_err, 0);
result.errorcode = np_runcmd(cmdline, &chld_out, &chld_err, 0);
}
/* apt-get upgrade only changes exit status if there is an
* internal error when run in dry-run mode. therefore we will
* treat such an error as UNKNOWN */
if(result != 0){
exec_warning=1;
result = STATE_UNKNOWN;
fprintf(stderr, _("'%s' exited with non-zero status.\n"),
cmdline);
if (result.errorcode != STATE_OK) {
exec_warning = 1;
result.errorcode = STATE_UNKNOWN;
fprintf(stderr, _("'%s' exited with non-zero status.\n"), cmdline);
}
*pkglist=malloc(sizeof(char *) * chld_out.lines);
if(!pkglist) die(STATE_UNKNOWN, "malloc failed!\n");
*secpkglist=malloc(sizeof(char *) * chld_out.lines);
if(!secpkglist) die(STATE_UNKNOWN, "malloc failed!\n");
char **pkglist = malloc(sizeof(char *) * chld_out.lines);
if (!pkglist) {
die(STATE_UNKNOWN, "malloc failed!\n");
}
char **secpkglist = malloc(sizeof(char *) * chld_out.lines);
if (!secpkglist) {
die(STATE_UNKNOWN, "malloc failed!\n");
}
/* parse the output, which should only consist of lines like
*
@ -321,82 +350,91 @@ int run_upgrade(int *pkgcount, int *secpkgcount, char ***pkglist, char ***secpkg
* we may need to switch to the --print-uris output format,
* in which case the logic here will slightly change.
*/
for(size_t i = 0; i < chld_out.lines; i++) {
if(verbose){
int package_counter = 0;
int security_package_counter = 0;
for (size_t i = 0; i < chld_out.lines; i++) {
if (verbose) {
printf("%s\n", chld_out.line[i]);
}
/* if it is a package we care about */
if (strncmp(PKGINST_PREFIX, chld_out.line[i], strlen(PKGINST_PREFIX)) == 0 &&
(do_include == NULL || regexec(&ireg, chld_out.line[i], 0, NULL, 0) == 0)) {
(do_include == NULL || regexec(&ireg, chld_out.line[i], 0, NULL, 0) == 0)) {
/* if we're not excluding, or it's not in the
* list of stuff to exclude */
if(do_exclude==NULL ||
regexec(&ereg, chld_out.line[i], 0, NULL, 0)!=0){
pc++;
if(regexec(&sreg, chld_out.line[i], 0, NULL, 0)==0){
spc++;
if(verbose) printf("*");
(*secpkglist)[spc-1] = pkg_name(chld_out.line[i]);
if (do_exclude == NULL || regexec(&ereg, chld_out.line[i], 0, NULL, 0) != 0) {
package_counter++;
if (regexec(&sreg, chld_out.line[i], 0, NULL, 0) == 0) {
security_package_counter++;
if (verbose) {
printf("*");
}
(secpkglist)[security_package_counter - 1] = pkg_name(chld_out.line[i]);
} else {
(*pkglist)[pc-spc-1] = pkg_name(chld_out.line[i]);
(pkglist)[package_counter - security_package_counter - 1] = pkg_name(chld_out.line[i]);
}
if(verbose){
if (verbose) {
printf("*%s\n", chld_out.line[i]);
}
}
}
}
*pkgcount=pc;
*secpkgcount=spc;
result.package_count = package_counter;
result.security_package_count = security_package_counter;
result.packages_list = pkglist;
result.secpackages_list = secpkglist;
/* If we get anything on stderr, at least set warning */
if (input_filename == NULL && chld_err.buflen) {
stderr_warning=1;
result = max_state(result, STATE_WARNING);
if(verbose){
for(size_t i = 0; i < chld_err.lines; i++) {
stderr_warning = 1;
result.errorcode = max_state(result.errorcode, STATE_WARNING);
if (verbose) {
for (size_t i = 0; i < chld_err.lines; i++) {
fprintf(stderr, "%s\n", chld_err.line[i]);
}
}
}
if (do_include != NULL) regfree(&ireg);
if (do_include != NULL) {
regfree(&ireg);
}
regfree(&sreg);
if(do_exclude!=NULL) regfree(&ereg);
if (do_exclude != NULL) {
regfree(&ereg);
}
free(cmdline);
return result;
}
/* run an apt-get update (needs root) */
int run_update(void){
int result=STATE_UNKNOWN;
struct output chld_out, chld_err;
int run_update(void) {
int result = STATE_UNKNOWN;
char *cmdline;
/* run the update */
cmdline = construct_cmdline(NO_UPGRADE, update_opts);
struct output chld_out;
struct output chld_err;
result = np_runcmd(cmdline, &chld_out, &chld_err, 0);
/* apt-get update changes exit status if it can't fetch packages.
* since we were explicitly asked to do so, this is treated as
* a critical error. */
if(result != 0){
exec_warning=1;
if (result != 0) {
exec_warning = 1;
result = STATE_CRITICAL;
fprintf(stderr, _("'%s' exited with non-zero status.\n"),
cmdline);
fprintf(stderr, _("'%s' exited with non-zero status.\n"), cmdline);
}
if(verbose){
for(size_t i = 0; i < chld_out.lines; i++) {
if (verbose) {
for (size_t i = 0; i < chld_out.lines; i++) {
printf("%s\n", chld_out.line[i]);
}
}
/* If we get anything on stderr, at least set warning */
if(chld_err.buflen){
stderr_warning=1;
if (chld_err.buflen) {
stderr_warning = 1;
result = max_state(result, STATE_WARNING);
if(verbose){
for(size_t i = 0; i < chld_err.lines; i++) {
if (verbose) {
for (size_t i = 0; i < chld_err.lines; i++) {
fprintf(stderr, "%s\n", chld_err.line[i]);
}
}
@ -405,158 +443,166 @@ int run_update(void){
return result;
}
char* pkg_name(char *line){
char *start=NULL, *space=NULL, *pkg=NULL;
int len=0;
char *pkg_name(char *line) {
char *start = line + strlen(PKGINST_PREFIX);
start = line + strlen(PKGINST_PREFIX);
len = strlen(start);
int len = strlen(start);
space = index(start, ' ');
if(space!=NULL){
char *space = index(start, ' ');
if (space != NULL) {
len = space - start;
}
pkg=malloc(sizeof(char)*(len+1));
if(!pkg) die(STATE_UNKNOWN, "malloc failed!\n");
char *pkg = malloc(sizeof(char) * (len + 1));
if (!pkg) {
die(STATE_UNKNOWN, "malloc failed!\n");
}
strncpy(pkg, start, len);
pkg[len]='\0';
pkg[len] = '\0';
return pkg;
}
int cmpstringp(const void *p1, const void *p2){
return strcmp(* (char * const *) p1, * (char * const *) p2);
}
int cmpstringp(const void *p1, const void *p2) { return strcmp(*(char *const *)p1, *(char *const *)p2); }
char* add_to_regexp(char *expr, const char *next){
char *re=NULL;
char *add_to_regexp(char *expr, const char *next) {
char *re = NULL;
if(expr==NULL){
re=malloc(sizeof(char)*(strlen("()")+strlen(next)+1));
if(!re) die(STATE_UNKNOWN, "malloc failed!\n");
if (expr == NULL) {
re = malloc(sizeof(char) * (strlen("()") + strlen(next) + 1));
if (!re) {
die(STATE_UNKNOWN, "malloc failed!\n");
}
sprintf(re, "(%s)", next);
} else {
/* resize it, adding an extra char for the new '|' separator */
re=realloc(expr, sizeof(char)*(strlen(expr)+1+strlen(next)+1));
if(!re) die(STATE_UNKNOWN, "realloc failed!\n");
re = realloc(expr, sizeof(char) * (strlen(expr) + 1 + strlen(next) + 1));
if (!re) {
die(STATE_UNKNOWN, "realloc failed!\n");
}
/* append it starting at ')' in the old re */
sprintf((char*)(re+strlen(re)-1), "|%s)", next);
sprintf((char *)(re + strlen(re) - 1), "|%s)", next);
}
return re;
}
char* construct_cmdline(upgrade_type u, const char *opts){
int len=0;
const char *opts_ptr=NULL, *aptcmd=NULL;
char *cmd=NULL;
char *construct_cmdline(upgrade_type u, const char *opts) {
const char *opts_ptr = NULL;
const char *aptcmd = NULL;
switch(u){
switch (u) {
case UPGRADE:
if(opts==NULL) opts_ptr=UPGRADE_DEFAULT_OPTS;
else opts_ptr=opts;
aptcmd="upgrade";
if (opts == NULL) {
opts_ptr = UPGRADE_DEFAULT_OPTS;
} else {
opts_ptr = opts;
}
aptcmd = "upgrade";
break;
case DIST_UPGRADE:
if(opts==NULL) opts_ptr=UPGRADE_DEFAULT_OPTS;
else opts_ptr=opts;
aptcmd="dist-upgrade";
if (opts == NULL) {
opts_ptr = UPGRADE_DEFAULT_OPTS;
} else {
opts_ptr = opts;
}
aptcmd = "dist-upgrade";
break;
case NO_UPGRADE:
if(opts==NULL) opts_ptr=UPDATE_DEFAULT_OPTS;
else opts_ptr=opts;
aptcmd="update";
if (opts == NULL) {
opts_ptr = UPDATE_DEFAULT_OPTS;
} else {
opts_ptr = opts;
}
aptcmd = "update";
break;
}
len+=strlen(PATH_TO_APTGET)+1; /* "/usr/bin/apt-get " */
len+=strlen(opts_ptr)+1; /* "opts " */
len+=strlen(aptcmd)+1; /* "upgrade\0" */
int len = 0;
len += strlen(PATH_TO_APTGET) + 1; /* "/usr/bin/apt-get " */
len += strlen(opts_ptr) + 1; /* "opts " */
len += strlen(aptcmd) + 1; /* "upgrade\0" */
cmd=(char*)malloc(sizeof(char)*len);
if(cmd==NULL) die(STATE_UNKNOWN, "malloc failed");
char *cmd = (char *)malloc(sizeof(char) * len);
if (cmd == NULL) {
die(STATE_UNKNOWN, "malloc failed");
}
sprintf(cmd, "%s %s %s", PATH_TO_APTGET, opts_ptr, aptcmd);
return cmd;
}
/* informative help message */
void
print_help (void)
{
print_revision(progname, NP_VERSION);
void print_help(void) {
print_revision(progname, NP_VERSION);
printf(_(COPYRIGHT), copyright, email);
printf(_(COPYRIGHT), copyright, email);
printf("%s\n", _("This plugin checks for software updates on systems that use"));
printf("%s\n", _("package management systems based on the apt-get(8) command"));
printf("%s\n", _("found in Debian GNU/Linux"));
printf("%s\n", _("This plugin checks for software updates on systems that use"));
printf("%s\n", _("package management systems based on the apt-get(8) command"));
printf("%s\n", _("found in Debian GNU/Linux"));
printf ("\n\n");
printf("\n\n");
print_usage();
print_usage();
printf(UT_HELP_VRSN);
printf(UT_EXTRA_OPTS);
printf(UT_HELP_VRSN);
printf(UT_EXTRA_OPTS);
printf(UT_PLUG_TIMEOUT, timeout_interval);
printf(UT_PLUG_TIMEOUT, timeout_interval);
printf (" %s\n", "-n, --no-upgrade");
printf (" %s\n", _("Do not run the upgrade. Probably not useful (without -u at least)."));
printf (" %s\n", "-l, --list");
printf (" %s\n", _("List packages available for upgrade. Packages are printed sorted by"));
printf (" %s\n", _("name with security packages listed first."));
printf (" %s\n", "-i, --include=REGEXP");
printf (" %s\n", _("Include only packages matching REGEXP. Can be specified multiple times"));
printf (" %s\n", _("the values will be combined together. Any packages matching this list"));
printf (" %s\n", _("cause the plugin to return WARNING status. Others will be ignored."));
printf (" %s\n", _("Default is to include all packages."));
printf (" %s\n", "-e, --exclude=REGEXP");
printf (" %s\n", _("Exclude packages matching REGEXP from the list of packages that would"));
printf (" %s\n", _("otherwise be included. Can be specified multiple times; the values"));
printf (" %s\n", _("will be combined together. Default is to exclude no packages."));
printf (" %s\n", "-c, --critical=REGEXP");
printf (" %s\n", _("If the full package information of any of the upgradable packages match"));
printf (" %s\n", _("this REGEXP, the plugin will return CRITICAL status. Can be specified"));
printf (" %s\n", _("multiple times like above. Default is a regexp matching security"));
printf (" %s\n", _("upgrades for Debian and Ubuntu:"));
printf (" \t%s\n", SECURITY_RE);
printf (" %s\n", _("Note that the package must first match the include list before its"));
printf (" %s\n", _("information is compared against the critical list."));
printf (" %s\n", "-o, --only-critical");
printf (" %s\n", _("Only warn about upgrades matching the critical list. The total number"));
printf (" %s\n", _("of upgrades will be printed, but any non-critical upgrades will not cause"));
printf (" %s\n", _("the plugin to return WARNING status."));
printf (" %s\n", "-w, --packages-warning");
printf (" %s\n", _("Minimum number of packages available for upgrade to return WARNING status."));
printf (" %s\n\n", _("Default is 1 package."));
printf(" %s\n", "-n, --no-upgrade");
printf(" %s\n", _("Do not run the upgrade. Probably not useful (without -u at least)."));
printf(" %s\n", "-l, --list");
printf(" %s\n", _("List packages available for upgrade. Packages are printed sorted by"));
printf(" %s\n", _("name with security packages listed first."));
printf(" %s\n", "-i, --include=REGEXP");
printf(" %s\n", _("Include only packages matching REGEXP. Can be specified multiple times"));
printf(" %s\n", _("the values will be combined together. Any packages matching this list"));
printf(" %s\n", _("cause the plugin to return WARNING status. Others will be ignored."));
printf(" %s\n", _("Default is to include all packages."));
printf(" %s\n", "-e, --exclude=REGEXP");
printf(" %s\n", _("Exclude packages matching REGEXP from the list of packages that would"));
printf(" %s\n", _("otherwise be included. Can be specified multiple times; the values"));
printf(" %s\n", _("will be combined together. Default is to exclude no packages."));
printf(" %s\n", "-c, --critical=REGEXP");
printf(" %s\n", _("If the full package information of any of the upgradable packages match"));
printf(" %s\n", _("this REGEXP, the plugin will return CRITICAL status. Can be specified"));
printf(" %s\n", _("multiple times like above. Default is a regexp matching security"));
printf(" %s\n", _("upgrades for Debian and Ubuntu:"));
printf(" \t%s\n", SECURITY_RE);
printf(" %s\n", _("Note that the package must first match the include list before its"));
printf(" %s\n", _("information is compared against the critical list."));
printf(" %s\n", "-o, --only-critical");
printf(" %s\n", _("Only warn about upgrades matching the critical list. The total number"));
printf(" %s\n", _("of upgrades will be printed, but any non-critical upgrades will not cause"));
printf(" %s\n", _("the plugin to return WARNING status."));
printf(" %s\n", "-w, --packages-warning");
printf(" %s\n", _("Minimum number of packages available for upgrade to return WARNING status."));
printf(" %s\n\n", _("Default is 1 package."));
printf ("%s\n\n", _("The following options require root privileges and should be used with care:"));
printf (" %s\n", "-u, --update=OPTS");
printf (" %s\n", _("First perform an 'apt-get update'. An optional OPTS parameter overrides"));
printf (" %s\n", _("the default options. Note: you may also need to adjust the global"));
printf (" %s\n", _("timeout (with -t) to prevent the plugin from timing out if apt-get"));
printf (" %s\n", _("upgrade is expected to take longer than the default timeout."));
printf (" %s\n", "-U, --upgrade=OPTS");
printf (" %s\n", _("Perform an upgrade. If an optional OPTS argument is provided,"));
printf (" %s\n", _("apt-get will be run with these command line options instead of the"));
printf (" %s", _("default "));
printf ("(%s).\n", UPGRADE_DEFAULT_OPTS);
printf (" %s\n", _("Note that you may be required to have root privileges if you do not use"));
printf (" %s\n", _("the default options, which will only run a simulation and NOT perform the upgrade"));
printf (" %s\n", "-d, --dist-upgrade=OPTS");
printf (" %s\n", _("Perform a dist-upgrade instead of normal upgrade. Like with -U OPTS"));
printf (" %s\n", _("can be provided to override the default options."));
printf("%s\n\n", _("The following options require root privileges and should be used with care:"));
printf(" %s\n", "-u, --update=OPTS");
printf(" %s\n", _("First perform an 'apt-get update'. An optional OPTS parameter overrides"));
printf(" %s\n", _("the default options. Note: you may also need to adjust the global"));
printf(" %s\n", _("timeout (with -t) to prevent the plugin from timing out if apt-get"));
printf(" %s\n", _("upgrade is expected to take longer than the default timeout."));
printf(" %s\n", "-U, --upgrade=OPTS");
printf(" %s\n", _("Perform an upgrade. If an optional OPTS argument is provided,"));
printf(" %s\n", _("apt-get will be run with these command line options instead of the"));
printf(" %s", _("default "));
printf("(%s).\n", UPGRADE_DEFAULT_OPTS);
printf(" %s\n", _("Note that you may be required to have root privileges if you do not use"));
printf(" %s\n", _("the default options, which will only run a simulation and NOT perform the upgrade"));
printf(" %s\n", "-d, --dist-upgrade=OPTS");
printf(" %s\n", _("Perform a dist-upgrade instead of normal upgrade. Like with -U OPTS"));
printf(" %s\n", _("can be provided to override the default options."));
printf(UT_SUPPORT);
printf(UT_SUPPORT);
}
/* simple usage heading */
void
print_usage(void)
{
printf ("%s\n", _("Usage:"));
printf ("%s [[-d|-u|-U]opts] [-n] [-l] [-t timeout] [-w packages-warning]\n", progname);
void print_usage(void) {
printf("%s\n", _("Usage:"));
printf("%s [[-d|-u|-U]opts] [-n] [-l] [-t timeout] [-w packages-warning]\n", progname);
}