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root/i-scream/projects/libstatgrab/src/libstatgrab/tools.c
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Comparing projects/libstatgrab/src/libstatgrab/tools.c (file contents):
Revision 1.37 by ats, Sun Apr 4 23:55:48 2004 UTC vs.
Revision 1.44 by ats, Tue Apr 6 17:42:16 2004 UTC

# Line 1 | Line 1
1   /*
2 < * i-scream central monitoring system
2 > * i-scream libstatgrab
3   * http://www.i-scream.org
4   * Copyright (C) 2000-2004 i-scream
5   *
# Line 74 | Line 74 | static mapping_t *mapping = NULL;
74   #endif
75  
76   #ifdef SOLARIS
77 < char *get_svr_from_bsd(char *bsd){
77 > const char *sg_get_svr_from_bsd(const char *bsd){
78   #ifdef HAVE_LIBDEVINFO_H
79          mapping_t *map_ptr;
80          for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next)
# Line 85 | Line 85 | char *get_svr_from_bsd(char *bsd){
85   #endif
86  
87   #if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H)
88 < void add_mapping(char *bsd, char *svr){
88 > static void add_mapping(char *bsd, char *svr){
89          mapping_t *map_ptr;
90          mapping_t *map_end_ptr;
91  
92        bsd = strdup(bsd);
93        svr = strdup(svr);
94
92          if (mapping == NULL){
93                  mapping = malloc(sizeof(mapping_t));
94                  if (mapping == NULL) return;
# Line 114 | Line 111 | void add_mapping(char *bsd, char *svr){
111          }
112  
113          map_ptr->next = NULL;
114 <        map_ptr->bsd = bsd;
115 <        map_ptr->svr = svr;
114 >        map_ptr->bsd = strdup(bsd);
115 >        map_ptr->svr = strdup(svr);
116  
117          return;
118   }
119  
120 < char *read_dir(char *disk_path){
120 >
121 > static char *read_dir(char *disk_path){
122          DIR *dirp;
123          struct dirent *dp;
124          struct stat stbuf;
# Line 162 | Line 160 | char *read_dir(char *disk_path){
160   }
161  
162  
163 <
166 < int get_alias(char *alias){
163 > static int get_alias(char *alias){
164          char file[MAXPATHLEN];
165          di_node_t root_node;
166          di_node_t node;
# Line 184 | Line 181 | int get_alias(char *alias){
181                          minor_name = di_minor_name(minor);
182                          strcpy(tmpnode, alias);
183                          sprintf(tmpnode, "%s%d", tmpnode, instance);
184 <                        strlcpy(file, "/devices", sizeof file);
185 <                        strlcat(file, phys_path, sizeof file);
186 <                        strlcat(file, ":", sizeof file);
187 <                        strlcat(file, minor_name, sizeof file);
184 >                        sg_strlcpy(file, "/devices", sizeof file);
185 >                        sg_strlcat(file, phys_path, sizeof file);
186 >                        sg_strlcat(file, ":", sizeof file);
187 >                        sg_strlcat(file, minor_name, sizeof file);
188                          value = read_dir(file);
189                          if (value != NULL){
190                                  add_mapping(tmpnode, value);
# Line 204 | Line 201 | int get_alias(char *alias){
201  
202  
203   #define BIG_ENOUGH 512
204 < int build_mapping(){
204 > static int build_mapping(){
205          char device_name[BIG_ENOUGH];
206          int x;
207          kstat_ctl_t *kc;
# Line 216 | Line 213 | int build_mapping(){
213          int found;
214  
215          if ((kc = kstat_open()) == NULL) {
216 <                return;
216 >                return 1;
217          }
218  
219          for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
# Line 263 | Line 260 | int build_mapping(){
260  
261  
262  
263 < char *f_read_line(FILE *f, const char *string){
263 > char *sg_f_read_line(FILE *f, const char *string){
264          /* Max line length. 8k should be more than enough */
265          static char line[8192];
266  
# Line 276 | Line 273 | char *f_read_line(FILE *f, const char *string){
273          return NULL;
274   }
275  
276 < char *get_string_match(char *line, regmatch_t *match){
276 > char *sg_get_string_match(char *line, regmatch_t *match){
277          int len=match->rm_eo - match->rm_so;
278          char *match_string=malloc(len+1);
279  
# Line 308 | Line 305 | static long long atoll(const char *s) {
305   }
306   #endif
307  
311 #ifndef HAVE_STRLCPY
308   /*      $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $     */
309  
310   /*
# Line 332 | Line 328 | static long long atoll(const char *s) {
328   * will be copied.  Always NUL terminates (unless siz == 0).
329   * Returns strlen(src); if retval >= siz, truncation occurred.
330   */
331 < size_t strlcpy(char *dst, const char *src, size_t siz){
331 > size_t sg_strlcpy(char *dst, const char *src, size_t siz){
332          register char *d = dst;
333          register const char *s = src;
334          register size_t n = siz;
# Line 355 | Line 351 | size_t strlcpy(char *dst, const char *src, size_t siz)
351  
352          return(s - src - 1);    /* count does not include NUL */
353   }
358 #endif
354  
360 #ifndef HAVE_STRLCAT
355   /*      $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $    */
356  
357   /*
# Line 383 | Line 377 | size_t strlcpy(char *dst, const char *src, size_t siz)
377   * Returns strlen(src) + MIN(siz, strlen(initial dst)).
378   * If retval >= siz, truncation occurred.
379   */
380 < size_t strlcat(char *dst, const char *src, size_t siz){
380 > size_t sg_strlcat(char *dst, const char *src, size_t siz){
381          register char *d = dst;
382          register const char *s = src;
383          register size_t n = siz;
# Line 409 | Line 403 | size_t strlcat(char *dst, const char *src, size_t siz)
403          return(dlen + (s - src));       /* count does not include NUL */
404   }
405  
406 < #endif
413 <
414 < char *update_string(char **dest, const char *src) {
406 > int sg_update_string(char **dest, const char *src) {
407          char *new;
408  
409 +        if (src == NULL) {
410 +                /* We're being told to set it to NULL. */
411 +                free(*dest);
412 +                *dest = NULL;
413 +                return 0;
414 +        }
415 +
416          new = realloc(*dest, strlen(src) + 1);
417          if (new == NULL) {
418 <                return NULL;
418 >                return -1;
419          }
420  
421          strcpy(new, src);
422          *dest = new;
423 <        return new;
423 >        return 0;
424   }
425  
426 < long long get_ll_match(char *line, regmatch_t *match){
426 > long long sg_get_ll_match(char *line, regmatch_t *match){
427          char *ptr;
428          long long num;
429  
# Line 435 | Line 434 | long long get_ll_match(char *line, regmatch_t *match){
434   }
435  
436   #if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
437 < kvm_t *get_kvm() {
437 > kvm_t *sg_get_kvm() {
438          static kvm_t *kvmd = NULL;
439  
440          if (kvmd != NULL) {
# Line 447 | Line 446 | kvm_t *get_kvm() {
446   }
447  
448   /* Can't think of a better name for this function */
449 < kvm_t *get_kvm2() {
449 > kvm_t *sg_get_kvm2() {
450          static kvm_t *kvmd2 = NULL;
451  
452          if (kvmd2 != NULL) {
# Line 460 | Line 459 | kvm_t *get_kvm2() {
459   #endif
460  
461   #if defined(NETBSD) || defined(OPENBSD)
462 < struct uvmexp *get_uvmexp() {
462 > struct uvmexp *sg_get_uvmexp() {
463          int mib[2];
464 <        size_t size;
465 <        static struct uvmexp *uvm = NULL;
464 >        size_t size = sizeof(struct uvmexp);
465 >        static struct uvmexp uvm;
466          struct uvmexp *new;
467  
468          mib[0] = CTL_VM;
469          mib[1] = VM_UVMEXP;
470  
471 <        if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) {
471 >        if (sysctl(mib, 2, &uvm, &size, NULL, 0) < 0) {
472                  return NULL;
473          }
474  
475 <        new = realloc(uvm, size);
477 <        if (new == NULL) {
478 <                return NULL;
479 <        }
480 <        uvm = new;
481 <
482 <        if (sysctl(mib, 2, uvm, &size, NULL, 0) < 0) {
483 <                return NULL;
484 <        }
485 <
486 <        return uvm;
475 >        return &uvm;
476   }
477   #endif
478  
479 < int statgrab_init(){
479 > int sg_init(){
480   #if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
481 <        {
482 <                kvm_t *kvmd = get_kvm();
494 <                if (kvmd == NULL) return 1;
481 >        if (sg_get_kvm() == NULL) {
482 >                return 1;
483          }
484 <        {
485 <                kvm_t *kvmd2 = get_kvm2();
498 <                if (kvmd2 == NULL) return 1;
484 >        if (sg_get_kvm2() == NULL) {
485 >                return 1;
486          }
487   #endif
501 #if defined(NETBSD) || defined(OPENBSD)
502        {
503                /* This should always succeed, but it seems that on some
504                 * versions of NetBSD the first call to get_uvmexp will return
505                 * a non-filled-in structure; this is a workaround for that.
506                 */
507                struct uvmexp *uvm = get_uvmexp();
508                if (uvm == NULL) return 1;
509        }
510 #endif
488   #ifdef SOLARIS
489          /* On solaris 7, this will fail if you are not root. But, everything
490           * will still work, just no disk mappings. So we will ignore the exit
# Line 520 | Line 497 | int statgrab_init(){
497          return 0;
498   }
499  
500 < int statgrab_drop_privileges() {
500 > int sg_drop_privileges() {
501          if (setegid(getgid()) != 0) return -1;
502          if (seteuid(getuid()) != 0) return -1;
503          return 0;

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