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#include <stdlib.h>
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#include <stdio.h>
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#ifndef WIN32
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#include <sys/wait.h>
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#endif
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#include <bl/bl.h>
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#define SPAWN_BUFSIZE 128
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gboolean spawn_sync(const char *working_directory,char **argv,
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char **standard_output,int *exit_status,GError **error)
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{
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/* Don't use g_spawn_sync on WIN32 for now to avoid needing the helper */
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#ifndef WIN32
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char *standard_error=NULL;
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gboolean retval;
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GSpawnFlags flags=G_SPAWN_SEARCH_PATH;
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if (!standard_output)
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flags=G_SPAWN_STDOUT_TO_DEV_NULL;
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retval=g_spawn_sync(working_directory,argv,NULL,flags,NULL,NULL,
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standard_output,&standard_error,exit_status,error);
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if (standard_error)
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fputs(standard_error,stderr);
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g_free(standard_error);
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if (retval && exit_status)
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*exit_status=WEXITSTATUS(*exit_status);
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return retval;
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#else
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FILE *fp;
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int i,r;
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size_t n,len;
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char *current_dir;
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GString *command_line,*string;
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if (working_directory)
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{
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current_dir=g_get_current_dir();
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if (g_chdir(working_directory)<0)
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{
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g_set_error(error,G_FILE_ERROR,g_file_error_from_errno(errno),
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"%s: %s",working_directory,g_strerror(errno));
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g_free(current_dir);
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return FALSE;
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}
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}
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else
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current_dir=NULL;
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command_line=g_string_new(NULL);
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for(i=0;argv[i];i++)
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{
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if (i)
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g_string_append_c(command_line,' ');
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g_string_append(command_line,argv[i]);
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}
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fp=popen(command_line->str,"r");
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g_string_free(command_line,TRUE);
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if (current_dir)
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{
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if (g_chdir(current_dir)<0)
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g_error("Failed to restore current directory: %s",
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g_strerror(errno));
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g_free(current_dir);
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}
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if (!fp)
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{
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g_set_error(error,G_FILE_ERROR,g_file_error_from_errno(errno),
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"%s: %s",command_line->str,g_strerror(errno));
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return FALSE;
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}
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string=g_string_new(NULL);
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do
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{
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len=string->len;
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g_string_set_size(string,len+SPAWN_BUFSIZE);
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n=fread(string->str+len,1,SPAWN_BUFSIZE,fp);
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if (n<0)
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{
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g_set_error(error,G_FILE_ERROR,g_file_error_from_errno(errno),
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"Error reading from bookloupe: %s",g_strerror(errno));
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(void)pclose(fp);
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g_string_free(string,TRUE);
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return FALSE;
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}
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g_string_set_size(string,len+n);
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} while(n);
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r=pclose(fp);
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if (r<0)
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{
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g_set_error(error,G_FILE_ERROR,g_file_error_from_errno(errno),
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"Error reading from bookloupe: %s",g_strerror(errno));
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g_string_free(string,TRUE);
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return FALSE;
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}
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else
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{
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if (exit_status)
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*exit_status=r;
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if (standard_output)
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*standard_output=g_string_free(string,FALSE);
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else
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g_string_free(string,TRUE);
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return TRUE;
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}
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#endif
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}
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