mirror of https://github.com/BOINC/boinc.git
481 lines
7.2 KiB
C
481 lines
7.2 KiB
C
/*
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* local/local_utils.c
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*
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* DC-API usefull functions
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*
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* (c) Daniel Drotos, 2006-2007
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*/
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/* $Id$ */
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/* $Date$ */
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/* $Revision$ */
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#include <stdio.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include "dc_internal.h"
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#include "dc_common.h"
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#include "local_utils.h"
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#include "local_common.h"
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void
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_DC_init_utils(void)
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{
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}
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int
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_DC_mkdir_with_parents(char *dn, mode_t mode)
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{
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char *p= dn;
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int res;
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/*fprintf(stderr, "making %s (EEXIST=%d)\n", dn, EEXIST);*/
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if (!dn ||
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!*dn)
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return(0);
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while (*p)
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{
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while (*p != '/' &&
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*p != '\0')
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p++;
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if (*p == '/')
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{
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*p= '\0';
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if (*dn)
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{
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/*fprintf(stderr, "mkdir(%s,%d)=",dn,mode);*/
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res= mkdir(dn, mode);
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/*fprintf(stderr, "%d %d\n", res, errno);*/
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}
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*p= '/';
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p++;
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}
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}
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/*fprintf(stderr, "mkdir(%s,%d)=",dn,mode);*/
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res= mkdir(dn, mode);
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/*fprintf(stderr, "%d %d\n", res, errno);*/
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if (res != 0 &&
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errno == EEXIST)
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return(DC_OK);
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return(res?DC_ERR_SYSTEM:DC_OK);
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}
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static int
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_DC_rmsubdir(char *name)
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{
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DIR *d;
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struct dirent *de;
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int i= 0;
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if ((d= opendir(name)) == NULL)
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{
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DC_log(LOG_DEBUG, "Open %s: %s", name, strerror(errno));
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return(0);
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}
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while ((de= readdir(d)))
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{
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if (strcmp(de->d_name, ".") != 0 &&
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strcmp(de->d_name, "..") != 0)
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{
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char *s= malloc(strlen(name)+strlen(de->d_name) + 10);
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strcpy(s, name);
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strcat(s, "/");
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strcat(s, de->d_name);
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i+= _DC_rm(s);
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free(s);
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}
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}
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closedir(d);
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if (rmdir(name))
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{
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DC_log(LOG_ERR, "Failed to rmdir %s: %s",
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name, strerror(errno));
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}
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return(i);
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}
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int
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_DC_rm(char *name)
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{
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struct stat s;
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int i;
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if (!name ||
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!*name)
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return(0);
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i= lstat(name, &s);
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if (i != 0)
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{
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return(0);
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}
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if (S_ISDIR(s.st_mode) &&
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strcmp(name, ".") != 0 &&
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strcmp(name, "..") != 0)
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{
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return(_DC_rmsubdir(name));
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}
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else
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{
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if (remove(name))
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DC_log(LOG_ERR, "Failed to remove %s: %s",
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name, strerror(errno));
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}
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return(1);
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}
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int
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_DC_file_exists(char *fn)
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{
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return(access(fn, F_OK) == 0);
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}
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int
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_DC_file_empty(char *fn)
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{
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struct stat s;
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if (stat(fn, &s))
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return(1);
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return(s.st_size == 0);
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}
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int
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_DC_create_file(char *fn, char *what)
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{
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FILE *f= fopen(fn, "w");
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if (f)
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{
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if (what)
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fprintf(f, "%s", what);
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fclose(f);
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return(DC_OK);
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}
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else
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return(DC_ERR_SYSTEM);
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}
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char *
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_DC_get_file(char *fn)
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{
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FILE *f;
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char *buf= NULL;
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if ((f= fopen(fn, "r")) != NULL)
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{
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int bs= 100, i;
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char c;
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buf= malloc(bs);
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i= 0;
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buf[i]= '\0';
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while ((c= fgetc(f)) != EOF)
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{
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if (i > bs-2)
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{
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bs+= 100;
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buf= realloc(buf, bs);
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}
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buf[i]= c;
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i++;
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buf[i]= '\0';
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}
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fclose(f);
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}
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return(buf);
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}
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static int _DC_message_id= 0;
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int
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_DC_create_message(char *box,
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char *name,
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const char *message,
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char *msgfile)
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{
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char *fn, *fn2;
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FILE *f;
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int ret= DC_OK;
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/*DC_log(LOG_DEBUG, "DC_sendMessage(%s)", message);*/
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if (!box ||
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!name)
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return(DC_ERR_BADPARAM);
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mkdir(box, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH);
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_DC_message_id++;
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fn= malloc(strlen(box)+strlen(name)+100);
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sprintf(fn, "%s/%s_creating.%d", box, name, _DC_message_id);
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if ((f= fopen(fn, "w")) != NULL)
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{
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if (message)
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fprintf(f, "%s", message);
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else if (msgfile)
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{
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if ((ret= _DC_copyFile(msgfile, fn)) != 0)
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DC_log(LOG_ERR, "copyFile(%s,%s) "
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"error: %s", msgfile, fn,
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strerror(errno));
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}
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else
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{
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DC_log(LOG_WARNING, "No message specified for "
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"creation");
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}
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if (fsync(fileno(f)) != 0)
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DC_log(LOG_ERR, "Sync of %s: %d %s", fn,
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errno, strerror(errno));
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fclose(f);
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/*DC_log(LOG_DEBUG, "Message %d created", _DC_message_id);*/
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}
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else
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{
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DC_log(LOG_ERR, "Error creating message file (%s)",
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fn);
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ret= DC_ERR_SYSTEM;
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}
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fn2= malloc(strlen(box)+strlen(name)+100);
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sprintf(fn2, "%s/%s.%d", box, name, _DC_message_id);
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rename(fn, fn2);
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DC_log(LOG_DEBUG, "Message created: %s", fn2);
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free(fn2);
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free(fn);
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return(ret);
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}
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int
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_DC_nuof_messages(char *box, char *name)
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{
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DIR *d;
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struct dirent *de;
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int nuof= 0;
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char *s;
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if (!box)
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return(0);
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if ((d= opendir(box)) == NULL)
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return(0);
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s= malloc(100 + (name?strlen(name):strlen(_DCAPI_MSG_MESSAGE)));
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strcpy(s, name?name:_DCAPI_MSG_MESSAGE);
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strcat(s, ".");
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while ((de= readdir(d)) != NULL)
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{
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char *found= strstr(de->d_name, s);
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if (found == de->d_name)
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nuof++;
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}
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if (d)
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closedir(d);
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free(s);
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return(nuof);
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}
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char *
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_DC_message_name(char *box, char *name)
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{
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char *dn, *n;
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DIR *d;
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struct dirent *de;
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int min_id;
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if (!box ||
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!name)
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return(NULL);
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if (!*box ||
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!*name)
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return(NULL);
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/*DC_log(LOG_DEBUG, "_DC_message_name(%s,%s)", box, name);*/
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dn= strdup(box);
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n= malloc(strlen(name)+10);
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strcpy(n, name);
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strcat(n, ".");
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/*DC_log(LOG_DEBUG, "opendir(%s)=", dn);*/
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d= opendir(dn);
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/*DC_log(LOG_DEBUG, "%p", d);*/
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min_id= -1;
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while (d &&
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(de= readdir(d)) != NULL)
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{
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char *found= strstr(de->d_name, n);
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/*DC_log(LOG_DEBUG, "%s <-> %s", de->d_name, n);*/
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if (found == de->d_name)
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{
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char *pos= strrchr(de->d_name, '.');
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/*DC_log(LOG_DEBUG, "found");*/
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if (pos)
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{
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int id= 0;
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pos++;
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id= strtol(pos, NULL, 10);
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/*DC_log(LOG_DEBUG, "id=%d", id);*/
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if (id > 0)
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{
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if (min_id < 0)
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min_id= id;
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else
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if (id < min_id)
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min_id= id;
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}
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}
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}
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/*else
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DC_log(LOG_DEBUG, "not found");*/
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}
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if (d)
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closedir(d);
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if (min_id >= 0)
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{
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dn= realloc(dn, strlen(box)+strlen(name)+100);
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sprintf(dn, "%s/%s.%d", box, name, min_id);
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free(n);
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/*DC_log(LOG_DEBUG, "return: %s", dn);*/
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return(dn);
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}
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if (dn)
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free(dn);
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if (n)
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free(n);
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/*DC_log(LOG_DEBUG, "return null");*/
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return(NULL);
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}
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char *
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_DC_read_message(char *box, char *name, int del_msg)
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{
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FILE *f;
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char *fn= _DC_message_name(box, name);
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char *buf= NULL;
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if (fn==NULL)
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return(NULL);
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/*DC_log(LOG_DEBUG, "Reading message from %s", fn);*/
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if ((f= fopen(fn, "r")) != NULL)
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{
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int bs= 100, i;
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char c;
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buf= malloc(bs);
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i= 0;
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buf[i]= '\0';
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while ((c= fgetc(f)) != EOF)
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{
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if (i > bs-2)
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{
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bs+= 100;
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buf= realloc(buf, bs);
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}
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buf[i]= c;
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i++;
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buf[i]= '\0';
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}
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fclose(f);
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if (del_msg)
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unlink(fn);
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}
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if (fn!=NULL)
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free(fn);
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return(buf);
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}
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char *
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_DC_quote_string(char *str)
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{
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int i, n;
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char *s, *p;
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if (!str)
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{
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s= strdup("\\nnn");
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return(s);
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}
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if (!*str)
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{
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s= strdup("\\000");
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return(s);
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}
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for (i= n= 0; str[i]; i++)
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{
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if (!isalnum(str[i]))
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n++;
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}
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s= calloc(strlen(str)+10*n+10, 1);
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for (i= 0, p= s; str[i]; i++)
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{
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if (isalnum(str[i]))
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{
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*p= str[i];
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p++;
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}
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else
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{
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sprintf(p, "\\%03o", str[i]);
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p+= strlen(p);
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}
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}
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return(s);
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}
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char *
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_DC_unquote_string(char *str)
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{
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char *s, *p, *i;
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if (!str)
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return(NULL);
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s= calloc(strlen(str)+1, 1);
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p= str;
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i= s;
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while (*p != '\0')
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{
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if (*p != '\\')
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*i= *p;
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else
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{
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char c, *x= p+4;
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int l;
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c= *x;
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*x= '\0';
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if (strcmp(p+1, "nnn") == 0)
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{
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free(s);
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return(NULL);
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}
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l= strtol(p+1, 0, 8);
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*i= (char)l;
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*x= c;
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p= x-1;
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}
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p++;
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i++;
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}
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return(s);
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}
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/* End of local/local_utils.c */
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/* Local variables: */
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/* c-file-style: "linux" */
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/* End: */
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