pkgtools

morpheus pkg tools
git clone git://git.2f30.org/pkgtools.git
Log | Files | Refs | README | LICENSE

commit 3cec1e4924580621e9627a6a0da97734b1356498
parent b9351fb397cb428c1aac187fd7919ea554404544
Author: sin <sin@2f30.org>
Date:   Fri May 30 14:08:46 +0100

Add infopkg

Diffstat:
Makefile | 1+
infopkg.c | 144+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 145 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile @@ -8,6 +8,7 @@ LIB = \ strlcpy.o SRC = \ + infopkg.c \ installpkg.c \ removepkg.c diff --git a/infopkg.c b/infopkg.c @@ -0,0 +1,144 @@ +/* See LICENSE file for copyright and license details. */ +#include <dirent.h> +#include <errno.h> +#include <libgen.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include "util.h" + +static void ownpkg(const char *, const char *); + +char *argv0; + +static void +usage(void) +{ + fprintf(stderr, "usage: %s [-E filename] [-p prefix]\n", argv0); + fprintf(stderr, " -E Look for the package that contains the given filename(s)\n"); + fprintf(stderr, " -p Set the installation prefix\n"); + exit(1); +} + +int +main(int argc, char *argv[]) +{ + DIR *dir; + struct dirent *dp; + char *prefix = "/"; + char path[PATH_MAX]; + int Eflag = 0; + int i; + int r; + + ARGBEGIN { + case 'E': + Eflag = 1; + break; + case 'p': + prefix = ARGF(); + break; + default: + usage(); + } ARGEND; + + if (Eflag == 0 || argc < 1) + usage(); + + r = chdir(prefix); + if (r < 0) { + fprintf(stderr, "chdir %s: %s\n", prefix, + strerror(errno)); + return EXIT_FAILURE; + } + + dir = opendir("var/pkg"); + if (!dir) { + fprintf(stderr, "opendir %s: %s\n", "var/pkg", + strerror(errno)); + return EXIT_FAILURE; + } + + for (i = 0; i < argc; i++) { + while ((dp = readdir(dir))) { + if (strcmp(dp->d_name, ".") == 0 || + strcmp(dp->d_name, "..") == 0) + continue; + strlcpy(path, dp->d_name, sizeof(path)); + ownpkg(basename(path), argv[i]); + } + rewinddir(dir); + } + + closedir(dir); + + return EXIT_SUCCESS; +} + +static void +ownpkg(const char *pkg, const char *f) +{ + struct stat sb1, sb2; + char buf[BUFSIZ], *p; + char path[PATH_MAX], filename[PATH_MAX]; + FILE *fp; + int r; + + for (; *f == '/'; f++) + ; + strlcpy(filename, f, sizeof(filename)); + + r = lstat(filename, &sb1); + if (r < 0) { + fprintf(stderr, "stat %s: %s\n", f, strerror(errno)); + exit(EXIT_FAILURE); + } + if (S_ISREG(sb1.st_mode) == 0) { + fprintf(stderr, "%s is not a regular file\n", filename); + exit(EXIT_FAILURE); + } + + strlcpy(path, "var/pkg/", sizeof(path)); + strlcat(path, pkg, sizeof(path)); + + fp = fopen(path, "r"); + if (!fp) { + fprintf(stderr, "fopen %s: %s\n", path, + strerror(errno)); + exit(EXIT_FAILURE); + } + + while (fgets(buf, sizeof(buf), fp)) { + p = strrchr(buf, '\n'); + if (p) + *p = '\0'; + + if (buf[0] == '\0') { + fprintf(stderr, "nil file entry in %s, skipping\n", path); + continue; + } + + r = lstat(buf, &sb2); + if (r < 0) { + fprintf(stderr, "stat %s: %s\n", + buf, strerror(errno)); + continue; + } + + if (sb1.st_dev == sb2.st_dev && + sb1.st_ino == sb2.st_ino) { + printf("/%s is owned by %s\n", filename, pkg); + break; + } + } + if (ferror(fp)) { + fprintf(stderr, "I/O error while processing %s\n", path); + exit(EXIT_FAILURE); + } + + fclose(fp); +}