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/*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2,
* as published by the Free Software Foundation.
*
* In addition to the permissions in the GNU General Public License,
* the authors give you unlimited permission to link the compiled
* version of this file into combinations with other programs,
* and to distribute those combinations without any restriction
* coming from the use of this file. (The General Public License
* restrictions do apply in other respects; for example, they cover
* modification of the file, and distribution when not linked into
* a combined executable.)
*
* This file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "common.h"
#include "signature.h"
#include "repository.h"
#include "git2/common.h"
void git_signature_free(git_signature *sig)
{
if (sig == NULL)
return;
free(sig->name);
free(sig->email);
free(sig);
}
git_signature *git_signature_new(const char *name, const char *email, time_t time, int offset)
{
git_signature *p = NULL;
if ((p = git__malloc(sizeof(git_signature))) == NULL)
goto cleanup;
p->name = git__strdup(name);
if (p->name == NULL)
goto cleanup;
p->email = git__strdup(email);
if (p->email == NULL)
goto cleanup;
p->when.time = time;
p->when.offset = offset;
if (p->name == NULL || p->email == NULL)
goto cleanup;
return p;
cleanup:
git_signature_free(p);
return NULL;
}
git_signature *git_signature_dup(const git_signature *sig)
{
return git_signature_new(sig->name, sig->email, sig->when.time, sig->when.offset);
}
static int parse_timezone_offset(const char *buffer, int *offset_out)
{
int offset, dec_offset;
int mins, hours;
const char* offset_start;
char* offset_end;
offset_start = buffer + 1;
if (*offset_start == '\n') {
*offset_out = 0;
return GIT_SUCCESS;
}
if (offset_start[0] != '-' && offset_start[0] != '+')
return GIT_EOBJCORRUPTED;
dec_offset = strtol(offset_start + 1, &offset_end, 10);
if (offset_end - offset_start != 5)
return GIT_EOBJCORRUPTED;
hours = dec_offset / 100;
mins = dec_offset % 100;
if (hours > 14) // see http://www.worldtimezone.com/faq.html
return GIT_EOBJCORRUPTED;
if (mins > 59)
return GIT_EOBJCORRUPTED;
offset = (hours * 60) + mins;
if (offset_start[0] == '-')
offset *= -1;
*offset_out = offset;
return GIT_SUCCESS;
}
int git_signature__parse(git_signature *sig, char **buffer_out,
const char *buffer_end, const char *header)
{
const size_t header_len = strlen(header);
int name_length, email_length;
char *buffer = *buffer_out;
char *line_end, *name_end, *email_end;
int offset = 0;
memset(sig, 0x0, sizeof(git_signature));
line_end = memchr(buffer, '\n', buffer_end - buffer);
if (!line_end)
return GIT_EOBJCORRUPTED;
if (buffer + (header_len + 1) > line_end)
return GIT_EOBJCORRUPTED;
if (memcmp(buffer, header, header_len) != 0)
return GIT_EOBJCORRUPTED;
buffer += header_len;
/* Parse name */
if ((name_end = memchr(buffer, '<', buffer_end - buffer)) == NULL)
return GIT_EOBJCORRUPTED;
name_length = name_end - buffer - 1;
sig->name = git__malloc(name_length + 1);
memcpy(sig->name, buffer, name_length);
sig->name[name_length] = 0;
buffer = name_end + 1;
if (buffer >= line_end)
return GIT_EOBJCORRUPTED;
/* Parse email */
if ((email_end = memchr(buffer, '>', buffer_end - buffer)) == NULL)
return GIT_EOBJCORRUPTED;
email_length = email_end - buffer;
sig->email = git__malloc(email_length + 1);
memcpy(sig->email, buffer, email_length);
sig->email[email_length] = 0;
buffer = email_end + 1;
if (buffer >= line_end)
return GIT_EOBJCORRUPTED;
sig->when.time = strtol(buffer, &buffer, 10);
if (sig->when.time == 0)
return GIT_EOBJCORRUPTED;
if (parse_timezone_offset(buffer, &offset) < GIT_SUCCESS)
return GIT_EOBJCORRUPTED;
sig->when.offset = offset;
*buffer_out = (line_end + 1);
return GIT_SUCCESS;
}
int git_signature__write(git_odb_source *src, const char *header, const git_signature *sig)
{
char sign;
int offset, hours, mins;
offset = sig->when.offset;
sign = (sig->when.offset < 0) ? '-' : '+';
if (offset < 0)
offset = -offset;
hours = offset / 60;
mins = offset % 60;
return git__source_printf(src, "%s %s <%s> %u %c%02d%02d\n", header, sig->name, sig->email, (unsigned)sig->when.time, sign, hours, mins);
}
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