#include <vector>
#include <assert.h>
+#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char *start;
size_t size;
char *free;
- struct MemBlock *next;
+ MemBlock *next;
MemBlock(size_t size) : size(size), next(NULL)
{
size_t add_len; /* bytes */
char *add;
- Change(int off)
+ Change(size_t off)
{
offset = off;
del_cnt = add_cnt = add_len = 0;
public:
- void read_diff(FileFd &f, Hashes * const h)
+ bool read_diff(FileFd &f, Hashes * const h)
{
char buffer[BLOCK_SIZE];
bool cmdwanted = true;
- Change ch(0);
- while(f.ReadLine(buffer, sizeof(buffer)))
- {
+ Change ch(std::numeric_limits<size_t>::max());
+ if (f.ReadLine(buffer, sizeof(buffer)) == NULL)
+ return _error->Error("Reading first line of patchfile %s failed", f.Name().c_str());
+ do {
if (h != NULL)
h->Add(buffer);
if (cmdwanted) {
char *m, *c;
size_t s, e;
- s = strtol(buffer, &m, 10);
- if (m == buffer) {
- s = e = ch.offset + ch.add_cnt;
- c = buffer;
- } else if (*m == ',') {
- m++;
+ errno = 0;
+ s = strtoul(buffer, &m, 10);
+ if (unlikely(m == buffer || s == ULONG_MAX || errno != 0))
+ return _error->Error("Parsing patchfile %s failed: Expected an effected line start", f.Name().c_str());
+ else if (*m == ',') {
+ ++m;
e = strtol(m, &c, 10);
+ if (unlikely(m == c || e == ULONG_MAX || errno != 0))
+ return _error->Error("Parsing patchfile %s failed: Expected an effected line end", f.Name().c_str());
+ if (unlikely(e < s))
+ return _error->Error("Parsing patchfile %s failed: Effected lines end %lu is before start %lu", f.Name().c_str(), e, s);
} else {
e = s;
c = m;
}
+ if (s > ch.offset)
+ return _error->Error("Parsing patchfile %s failed: Effected line is after previous effected line", f.Name().c_str());
switch(*c) {
case 'a':
cmdwanted = false;
ch.del_cnt = 0;
break;
case 'c':
+ if (unlikely(s == 0))
+ return _error->Error("Parsing patchfile %s failed: Change command can't effect line zero", f.Name().c_str());
cmdwanted = false;
ch.add = NULL;
ch.add_cnt = 0;
ch.del_cnt = e - s + 1;
break;
case 'd':
+ if (unlikely(s == 0))
+ return _error->Error("Parsing patchfile %s failed: Delete command can't effect line zero", f.Name().c_str());
ch.offset = s - 1;
ch.del_cnt = e - s + 1;
ch.add = NULL;
ch.add_len = 0;
filechanges.add_change(ch);
break;
+ default:
+ return _error->Error("Parsing patchfile %s failed: Unknown command", f.Name().c_str());
}
} else { /* !cmdwanted */
- if (buffer[0] == '.' && buffer[1] == '\n') {
+ if (strcmp(buffer, ".\n") == 0) {
cmdwanted = true;
filechanges.add_change(ch);
} else {
}
}
}
- }
+ } while(f.ReadLine(buffer, sizeof(buffer)));
+ return true;
}
void write_diff(FILE *f)
<< std::endl;
FileFd p;
+ Hashes patch_hash(I->ExpectedHashes);
// all patches are compressed, even if the name doesn't reflect it
- if (p.Open(patch_name, FileFd::ReadOnly, FileFd::Gzip) == false) {
- std::cerr << "Could not open patch file " << patch_name << std::endl;
+ if (p.Open(patch_name, FileFd::ReadOnly, FileFd::Gzip) == false ||
+ patch.read_diff(p, &patch_hash) == false)
+ {
_error->DumpErrors(std::cerr);
- abort();
+ return false;
}
- Hashes patch_hash(I->ExpectedHashes);
- patch.read_diff(p, &patch_hash);
p.Close();
HashStringList const hsl = patch_hash.GetHashStringList();
if (hsl != I->ExpectedHashes)
FILE *out = fopen(Itm->DestFile.c_str(), "w");
Hashes hash(Itm->ExpectedHashes);
-
patch.apply_against_file(out, inp, &hash);
fclose(out);
return true;
}
+ bool Configuration(std::string Message)
+ {
+ if (pkgAcqMethod::Configuration(Message) == false)
+ return false;
+
+ DropPrivsOrDie();
+
+ return true;
+ }
+
public:
RredMethod() : pkgAcqMethod("2.0",SingleInstance | SendConfig), Debug(false) {}
};
_error->DumpErrors(std::cerr);
exit(1);
}
- patch.read_diff(p, NULL);
+ if (patch.read_diff(p, NULL) == false)
+ {
+ _error->DumpErrors(std::cerr);
+ exit(2);
+ }
}
if (just_diff) {
--- /dev/null
+#!/bin/sh
+set -e
+
+TESTDIR=$(readlink -f $(dirname $0))
+. $TESTDIR/framework
+
+setupenvironment
+configarchitecture 'i386'
+
+echo 'Package: coolstuff
+Version: 0.8.15
+Description: collection of stuff
+ A lot, too much to iterate all, but at least this:
+ - stuff
+ - more stuff
+ - even more stuff
+ .
+ And a cow.
+
+Package: oldstuff
+Version: 0-1
+Description: collection of outdated stuff
+ A lot, but of no use nowadays, but at least this:
+ - stuff
+ - more stuff
+ - even more stuff
+ .
+ And a dog.' > Packages
+
+testrred() {
+ msgtest "$1" "$2"
+ if [ -z "$3" ]; then
+ echo -n '' > Packages.ed
+ else
+ echo "$3" > Packages.ed
+ fi
+ rred() {
+ cat Packages | runapt "${METHODSDIR}/rred" "$@"
+ }
+ testsuccessequal "$4" --nomsg rred -f Packages.ed
+}
+
+testrred 'Remove' 'first line' '1d' "$(tail -n +2 ./Packages)"
+testrred 'Remove' 'empty line' '10d' "$(head -n 9 ./Packages)
+$(tail -n 9 ./Packages)"
+testrred 'Remove' 'line in a paragraph' '5d' "$(head -n 4 ./Packages)
+$(tail -n 14 ./Packages)"
+testrred 'Remove' 'last line' '19d' "$(head -n -1 ./Packages)"
+testrred 'Remove' 'multiple single lines' '17d
+7d' "$(sed -e '/^ - even more stuff$/ d' ./Packages)"
+testrred 'Remove' 'first paragraph' '1,10d' "$(tail -n 9 ./Packages)"
+testrred 'Remove' 'a few lines in the middle' '5,14d' "$(head -n 4 ./Packages)
+$(tail -n 5 ./Packages)"
+testrred 'Remove' 'second paragraph' '10,19d' "$(head -n 9 ./Packages)"
+testrred 'Mass Remove' 'all stuff lines' '15,17d
+13d
+11d
+5,7d
+3d
+1d' "$(sed '/stuff/ d' ./Packages)"
+
+testrred 'Single line add' 'first line' '0a
+Format: 3.0 (native)
+.' "Format: 3.0 (native)
+$(cat ./Packages)"
+testrred 'Single line add' 'last line' '19a
+Multi-Arch: foreign
+.' "$(cat ./Packages)
+Multi-Arch: foreign"
+testrred 'Single line add' 'middle' '9a
+Multi-Arch: foreign
+.' "$(head -n 9 ./Packages)
+Multi-Arch: foreign
+$(tail -n 10 ./Packages)"
+
+testrred 'Multi line add' 'first line' '0a
+Format: 3.0 (native)
+Source: apt
+.' "Format: 3.0 (native)
+Source: apt
+$(cat ./Packages)"
+testrred 'Multi line add' 'last line' '19a
+Multi-Arch: foreign
+Homepage: https://debian.org
+.' "$(cat ./Packages)
+Multi-Arch: foreign
+Homepage: https://debian.org"
+testrred 'Multi line add' 'middle' '9a
+Multi-Arch: foreign
+Homepage: https://debian.org
+.' "$(head -n 9 ./Packages)
+Multi-Arch: foreign
+Homepage: https://debian.org
+$(tail -n 10 ./Packages)"
+
+testrred 'Single line change' 'first line' '1c
+Package: supercoolstuff
+.' "Package: supercoolstuff
+$(tail -n +2 ./Packages)"
+testrred 'Single line change' 'in the middle' '9c
+ And a super cow.
+.' "$(head -n 8 ./Packages)
+ And a super cow.
+$(tail -n 10 ./Packages)"
+testrred 'Single line change' 'an empty line' '10c
+
+.' "$(head -n 9 ./Packages)
+
+$(tail -n 9 ./Packages)"
+testrred 'Single line change' 'a spacy line' '10c
+
+.' "$(head -n 9 ./Packages)
+
+$(tail -n 9 ./Packages)"
+testrred 'Single line change' 'last line' '19c
+ And a cat.
+.' "$(head -n -1 ./Packages)
+ And a cat."
+
+testrred 'Multi line change' 'exchange' '5,7c
+ - good stuff
+ - more good stuff
+ - even more good stuff
+.' "$(head -n 4 ./Packages)
+ - good stuff
+ - more good stuff
+ - even more good stuff
+$(tail -n 12 ./Packages)"
+testrred 'Multi line change' 'less' '5,7c
+ - good stuff
+ - more good stuff
+.' "$(head -n 4 ./Packages)
+ - good stuff
+ - more good stuff
+$(tail -n 12 ./Packages)"
+testrred 'Multi line change' 'more' '5,7c
+ - good stuff
+ - more good stuff
+ - even more good stuff
+ - bonus good stuff
+.' "$(head -n 4 ./Packages)
+ - good stuff
+ - more good stuff
+ - even more good stuff
+ - bonus good stuff
+$(tail -n 12 ./Packages)"
+
+failrred() {
+ msgtest 'Failure caused by' "$1"
+ echo "$2" > Packages.ed
+ rred() {
+ cat Packages | runapt "${METHODSDIR}/rred" "$@"
+ }
+ testfailure --nomsg rred -f Packages.ed
+}
+
+failrred 'Bogus content' '<html>
+</html>'
+
+# not a problem per-se, but we want our parser to be really strict
+failrred 'Empty patch file' ''
+failrred 'Empty line patch file' '
+'
+failrred 'Empty line before command' '
+1d'
+failrred 'Empty line after command' '1d
+'
+failrred 'Empty line between commands' '17d
+
+7d'
+failrred 'Empty spaces lines before command' '
+1d'
+failrred 'Empty spaces lines after command' '1d
+ '
+failrred 'Empty spaces lines between commands' '17d
+
+7d'
+
+# the line before the first one can't be deleted/changed
+failrred 'zero line delete' '0d'
+failrred 'zero line change' '0c
+Package: supercoolstuff
+.'
+# and this makes no sense at all
+failrred 'negative line delete' '-1d'
+failrred 'negative line change' '-1c
+Package: supercoolstuff
+.'
+failrred 'negative line add' '-1a
+Package: supercoolstuff
+.'
+failrred 'Wrong order of commands' '7d
+17d'
+failrred 'End before start' '7,6d'
projects / apt.git / commitdiff
