diff options
Diffstat (limited to 'src/common.c')
| -rw-r--r-- | src/common.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/common.c b/src/common.c new file mode 100644 index 0000000..d91108b --- /dev/null +++ b/src/common.c @@ -0,0 +1,121 @@ +#include "../config.h" +#include "common.h" + +#include <sys/stat.h> +#include <sys/types.h> + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + + +#define MAXLEN 4096 +#define LIST_CHUNK 1024 + +#define resize_if_necessary(count,len,ptr) \ + if ( count >= len - 1 ) { \ + len += LIST_CHUNK; \ + ptr =(char const **)realloc(ptr, sizeof(char *)*len); \ + } + +void print_event_descriptions() { + printf("\taccess\t\tfile or directory contents were read\n"); + printf("\tmodify\t\tfile or directory contents were written\n"); + printf("\tattrib\t\tfile or directory attributes changed\n"); + printf("\tclose_write\tfile or directory closed, after being opened in\n" + "\t \twriteable mode\n"); + printf("\tclose_nowrite\tfile or directory closed, after being opened in\n" + "\t \tread-only mode\n"); + printf("\tclose\t\tfile or directory closed, regardless of read/write " + "mode\n"); + printf("\topen\t\tfile or directory opened\n"); + printf("\tmoved_to\tfile or directory moved to watched directory\n"); + printf("\tmoved_from\tfile or directory moved from watched directory\n"); + printf("\tmove\t\tfile or directory moved to or from watched directory\n"); + printf("\tcreate\t\tfile or directory created within watched directory\n"); + printf("\tdelete\t\tfile or directory deleted within watched directory\n"); + printf("\tdelete_self\tfile or directory was deleted\n"); + printf("\tunmount\t\tfile system containing file or directory unmounted\n"); +} + +int isdir( char const * path ) { + static struct stat64 my_stat; + + if ( -1 == lstat64( path, &my_stat ) ) { + if (errno == ENOENT) return 0; + fprintf(stderr, "Stat failed on %s: %s\n", path, strerror(errno)); + return 0; + } + + return S_ISDIR( my_stat.st_mode ) && !S_ISLNK( my_stat.st_mode ); +} + +FileList construct_path_list( int argc, char ** argv, char const * filename ) { + FileList list; + list.watch_files = 0; + list.exclude_files = 0; + FILE * file = 0; + + if (!filename) { + } + else if (!strcmp(filename,"-")) { + file = stdin; + } + else { + file = fopen( filename, "r" ); + } + + int watch_len = LIST_CHUNK; + int exclude_len = LIST_CHUNK; + int watch_count = 0; + int exclude_count = 0; + list.watch_files = (char const **)malloc(sizeof(char *)*watch_len); + list.exclude_files = (char const **)malloc(sizeof(char *)*exclude_len); + + char name[MAXLEN]; + while ( file && fgets(name, MAXLEN, file) ) { + if ( name[strlen(name)-1] == '\n') name[strlen(name)-1] = 0; + if ( strlen(name) == 0 ) continue; + if ( '@' == name[0] && strlen(name) == 1 ) continue; + if ( '@' == name[0] ) { + resize_if_necessary(exclude_count, exclude_len, list.exclude_files); + list.exclude_files[exclude_count++] = strdup(&name[1]); + } + else { + resize_if_necessary(watch_count, watch_len, list.watch_files); + list.watch_files[watch_count++] = strdup(name); + } + } + if ( file && file != stdin) fclose(file); + + for ( int i = 0; i < argc; ++i ) { + if ( strlen(argv[i]) == 0 ) continue; + if ( '@' == argv[i][0] && strlen(argv[i]) == 1 ) continue; + if ( '@' == argv[i][0] ) { + resize_if_necessary(exclude_count, exclude_len, list.exclude_files); + list.exclude_files[exclude_count++] = &argv[i][1]; + } + else { + resize_if_necessary(watch_count, watch_len, list.watch_files); + list.watch_files[watch_count++] = argv[i]; + } + } + list.exclude_files[exclude_count] = 0; + list.watch_files[watch_count] = 0; + return list; +} + +void _niceassert( long cond, int line, char const * file, char const * condstr, + char const * mesg ) { + if ( cond ) return; + + if ( mesg ) { + fprintf(stderr, "%s:%d assertion ( %s ) failed: %s\n", file, line, + condstr, mesg ); + } + else { + fprintf(stderr, "%s:%d assertion ( %s ) failed.\n", file, line, condstr); + } +} |