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-rw-r--r--src/logic/slbt_exec_uninstall.c348
1 files changed, 348 insertions, 0 deletions
diff --git a/src/logic/slbt_exec_uninstall.c b/src/logic/slbt_exec_uninstall.c
new file mode 100644
index 0000000..2e54f79
--- /dev/null
+++ b/src/logic/slbt_exec_uninstall.c
@@ -0,0 +1,348 @@
+/*******************************************************************/
+/* slibtool: a skinny libtool implementation, written in C */
+/* Copyright (C) 2016 Z. Gilboa */
+/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
+/*******************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/stat.h>
+
+#define ARGV_DRIVER
+
+#include <slibtool/slibtool.h>
+#include "slibtool_uninstall_impl.h"
+#include "slibtool_readlink_impl.h"
+#include "slibtool_errinfo_impl.h"
+#include "argv/argv.h"
+
+static int slbt_uninstall_usage(
+ const char * program,
+ const char * arg,
+ const struct argv_option * options,
+ struct argv_meta * meta)
+{
+ char header[512];
+
+ snprintf(header,sizeof(header),
+ "Usage: %s --mode=uninstall <rm> [options] [DEST]...\n"
+ "Options:\n",
+ program);
+
+ argv_usage(stdout,header,options,arg);
+ argv_free(meta);
+
+ return SLBT_USAGE;
+}
+
+static int slbt_exec_uninstall_fail(
+ struct slbt_exec_ctx * actx,
+ struct argv_meta * meta,
+ int ret)
+{
+ argv_free(meta);
+ slbt_free_exec_ctx(actx);
+ return ret;
+}
+
+static int slbt_exec_uninstall_fs_entry(
+ const struct slbt_driver_ctx * dctx,
+ struct slbt_exec_ctx * ectx,
+ char ** parg,
+ char * path,
+ uint32_t flags)
+{
+ struct stat st;
+ char * slash;
+ char dpath[PATH_MAX];
+
+ /* needed? */
+ if (stat(path,&st) && (errno == ENOENT))
+ if (lstat(path,&st) && (errno == ENOENT))
+ return 0;
+
+ /* output */
+ *parg = path;
+
+ if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
+ if (slbt_output_uninstall(dctx,ectx))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* directory? */
+ if (S_ISDIR(st.st_mode)) {
+ if (!(rmdir(path)))
+ return 0;
+
+ else if ((errno == EEXIST) || (errno == ENOTEMPTY))
+ return 0;
+
+ else
+ return SLBT_SYSTEM_ERROR(dctx);
+ }
+
+ /* remove file or symlink entry */
+ if (unlink(path))
+ return SLBT_SYSTEM_ERROR(dctx);
+
+ /* remove empty containing directory? */
+ if (flags & SLBT_UNINSTALL_RMDIR) {
+ strcpy(dpath,path);
+
+ /* invalid (current) directory? */
+ if (!(slash = strrchr(dpath,'/')))
+ return 0;
+
+ *slash = 0;
+
+ if (rmdir(dpath))
+ return SLBT_SYSTEM_ERROR(dctx);
+ }
+
+ return 0;
+}
+
+static int slbt_exec_uninstall_versioned_library(
+ const struct slbt_driver_ctx * dctx,
+ struct slbt_exec_ctx * ectx,
+ char ** parg,
+ char * rpath,
+ char * lpath,
+ const char * suffix,
+ uint32_t flags)
+{
+ char * slash;
+ char * dot;
+ char * path;
+ char apath[PATH_MAX];
+
+ /* normalize library link path */
+ if (lpath[0] == '/') {
+ path = lpath;
+
+ } else if (!(slash = strrchr(rpath,'/'))) {
+ path = lpath;
+
+ } else {
+ strcpy(apath,rpath);
+ strcpy(&apath[slash-rpath+1],lpath);
+ path = apath;
+ }
+
+ /* delete associated version files */
+ while ((dot = strrchr(path,'.')) && (strcmp(dot,suffix))) {
+ if (slbt_exec_uninstall_fs_entry(dctx,ectx,parg,path,flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ *dot = 0;
+ }
+
+ return 0;
+}
+
+static int slbt_exec_uninstall_entry(
+ const struct slbt_driver_ctx * dctx,
+ struct slbt_exec_ctx * ectx,
+ struct argv_entry * entry,
+ char ** parg,
+ uint32_t flags)
+{
+ char path [PATH_MAX];
+ char lpath[PATH_MAX];
+ char * dot;
+
+ if ((size_t)snprintf(path,PATH_MAX,"%s",
+ entry->arg) >= PATH_MAX-8)
+ return SLBT_BUFFER_ERROR(dctx);
+
+ *parg = (char *)entry->arg;
+
+ /* remove explicit argument */
+ if (slbt_exec_uninstall_fs_entry(dctx,ectx,parg,path,flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* non-.la-wrapper argument? */
+ if (!(dot = strrchr(path,'.')))
+ return 0;
+
+ else if (strcmp(dot,".la"))
+ return 0;
+
+ /* remove .a archive as needed */
+ strcpy(dot,".a");
+
+ if (slbt_exec_uninstall_fs_entry(dctx,ectx,parg,path,flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* .so symlink? */
+ strcpy(dot,".so");
+
+ if (!(slbt_readlink(path,lpath,sizeof(lpath))))
+ if (slbt_exec_uninstall_versioned_library(
+ dctx,ectx,parg,
+ path,lpath,
+ ".so",flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* .lib.a symlink? */
+ strcpy(dot,".lib.a");
+
+ if (!(slbt_readlink(path,lpath,sizeof(lpath))))
+ if (slbt_exec_uninstall_versioned_library(
+ dctx,ectx,parg,
+ path,lpath,
+ ".lib.a",flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* .dll symlink? */
+ strcpy(dot,".dll");
+
+ if (!(slbt_readlink(path,lpath,sizeof(lpath))))
+ if (slbt_exec_uninstall_versioned_library(
+ dctx,ectx,parg,
+ path,lpath,
+ ".dll",flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* remove .so library as needed */
+ strcpy(dot,".so");
+
+ if (slbt_exec_uninstall_fs_entry(dctx,ectx,parg,path,flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* remove .lib.a import library as needed */
+ strcpy(dot,".lib.a");
+
+ if (slbt_exec_uninstall_fs_entry(dctx,ectx,parg,path,flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* remove .dll library as needed */
+ strcpy(dot,".dll");
+
+ if (slbt_exec_uninstall_fs_entry(dctx,ectx,parg,path,flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* remove .exe image as needed */
+ strcpy(dot,".exe");
+
+ if (slbt_exec_uninstall_fs_entry(dctx,ectx,parg,path,flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* remove binary image as needed */
+ *dot = 0;
+
+ if (slbt_exec_uninstall_fs_entry(dctx,ectx,parg,path,flags))
+ return SLBT_NESTED_ERROR(dctx);
+
+ return 0;
+}
+
+int slbt_exec_uninstall(
+ const struct slbt_driver_ctx * dctx,
+ struct slbt_exec_ctx * ectx)
+{
+ int ret;
+ char ** argv;
+ char ** iargv;
+ uint32_t flags;
+ struct slbt_exec_ctx * actx;
+ struct argv_meta * meta;
+ struct argv_entry * entry;
+ const struct argv_option * options = slbt_uninstall_options;
+
+ /* dry run */
+ if (dctx->cctx->drvflags & SLBT_DRIVER_DRY_RUN)
+ return 0;
+
+ /* context */
+ if (ectx)
+ actx = 0;
+ else if ((ret = slbt_get_exec_ctx(dctx,&ectx)))
+ return ret;
+ else
+ actx = ectx;
+
+ /* initial state, uninstall mode skin */
+ slbt_reset_arguments(ectx);
+ slbt_disable_placeholders(ectx);
+ iargv = ectx->cargv;
+
+ /* work around non-conforming uses of --mode=uninstall */
+ if (!(strcmp(iargv[0],"/bin/sh")) || !strcmp(iargv[0],"/bin/bash"))
+ iargv++;
+
+ /* missing arguments? */
+ if (!iargv[1] && (dctx->cctx->drvflags & SLBT_DRIVER_VERBOSITY_USAGE))
+ return slbt_uninstall_usage(dctx->program,0,options,0);
+
+ /* <uninstall> argv meta */
+ if (!(meta = argv_get(
+ iargv,
+ options,
+ dctx->cctx->drvflags & SLBT_DRIVER_VERBOSITY_ERRORS
+ ? ARGV_VERBOSITY_ERRORS
+ : ARGV_VERBOSITY_NONE)))
+ return slbt_exec_uninstall_fail(
+ actx,meta,
+ SLBT_CUSTOM_ERROR(dctx,0));
+
+ /* dest, alternate argument vector options */
+ argv = ectx->altv;
+ flags = 0;
+
+ *argv++ = iargv[0];
+
+ for (entry=meta->entries; entry->fopt || entry->arg; entry++) {
+ if (entry->fopt) {
+ switch (entry->tag) {
+ case TAG_UNINSTALL_HELP:
+ flags |= SLBT_UNINSTALL_HELP;
+ break;
+
+ case TAG_UNINSTALL_VERSION:
+ flags |= SLBT_UNINSTALL_VERSION;
+ break;
+
+ case TAG_UNINSTALL_FORCE:
+ *argv++ = "-f";
+ flags |= SLBT_UNINSTALL_FORCE;
+ break;
+
+ case TAG_UNINSTALL_RMDIR:
+ *argv++ = "-d";
+ flags |= SLBT_UNINSTALL_RMDIR;
+ break;
+
+ case TAG_UNINSTALL_VERBOSE:
+ *argv++ = "-v";
+ flags |= SLBT_UNINSTALL_VERBOSE;
+ break;
+ }
+ }
+ }
+
+ /* --help */
+ if (flags & SLBT_UNINSTALL_HELP) {
+ slbt_uninstall_usage(dctx->program,0,options,meta);
+ return 0;
+ }
+
+ /* uninstall */
+ ectx->argv = ectx->altv;
+ ectx->program = ectx->altv[0];
+
+ /* uninstall entries one at a time */
+ for (entry=meta->entries; entry->fopt || entry->arg; entry++)
+ if (!entry->fopt)
+ if (slbt_exec_uninstall_entry(dctx,ectx,entry,argv,flags))
+ return slbt_exec_uninstall_fail(
+ actx,meta,
+ SLBT_NESTED_ERROR(dctx));
+
+ argv_free(meta);
+ slbt_free_exec_ctx(actx);
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 10:26:31 +0000