diff options
Diffstat (limited to 'src/util.c')
| -rw-r--r-- | src/util.c | 36 |
1 files changed, 35 insertions, 1 deletions
@@ -66,7 +66,7 @@ int gzopen_frontend(char *pathname, int oflags, int mode) return (int)gzf; } -int unpack(char *archive, char *prefix) +int unpack(char *archive, const char *prefix, const char *fn) { TAR *tar = NULL; char expath[PATH_MAX]; @@ -83,10 +83,20 @@ int unpack(char *archive, char *prefix) return(1); } while(!th_read(tar)) { + if(fn && strcmp(fn, th_get_pathname(tar))) { + if(TH_ISREG(tar) && tar_skip_regfile(tar)) { + char errorstr[255]; + snprintf(errorstr, 255, "bad tar archive: %s", archive); + perror(errorstr); + return(1); + } + continue; + } snprintf(expath, PATH_MAX, "%s/%s", prefix, th_get_pathname(tar)); if(tar_extract_file(tar, expath)) { fprintf(stderr, "could not extract %s: %s\n", th_get_pathname(tar), strerror(errno)); } + if(fn) break; } tar_close(tar); @@ -289,4 +299,28 @@ char* trim(char *str) return str; } +/* A cheap grep for text files, returns 1 if a substring + * was found in the text file fn, 0 if it wasn't + */ +int grep(const char *fn, const char *needle) +{ + FILE *fp; + + if((fp = fopen(fn, "r")) == NULL) { + return(0); + } + while(!feof(fp)) { + char line[1024]; + fgets(line, 1024, fp); + if(feof(fp)) continue; + if(strstr(line, needle)) { + fclose(fp); + return(1); + } + } + fclose(fp); + return(0); +} + + /* vim: set ts=2 sw=2 noet: */ |