wok-current annotate busybox/stuff/busybox-1.7.3-patch.u @ rev 2554

Up php-cups (1.3.9)
author Pascal Bellard <pascal.bellard@slitaz.org>
date Thu Mar 26 12:26:52 2009 +0000 (2009-03-26)
parents 4b37234fc0be
children
rev   line source
pascal@287 1 --- busybox-1.7.3/editors/patch.c
pascal@287 2 +++ busybox-1.7.3/editors/patch.c
pascal@287 3 @@ -23,11 +23,9 @@
pascal@287 4
pascal@287 5 #include "libbb.h"
pascal@287 6
pascal@287 7 -static unsigned int copy_lines(FILE *src_stream, FILE *dest_stream, const unsigned int lines_count)
pascal@287 8 +static unsigned int copy_lines(FILE *src_stream, FILE *dest_stream, unsigned int lines_count)
pascal@287 9 {
pascal@287 10 - unsigned int i = 0;
pascal@287 11 -
pascal@287 12 - while (src_stream && (i < lines_count)) {
pascal@287 13 + while (src_stream && lines_count) {
pascal@287 14 char *line;
pascal@287 15 line = xmalloc_fgets(src_stream);
pascal@287 16 if (line == NULL) {
pascal@287 17 @@ -37,10 +35,9 @@
pascal@287 18 bb_perror_msg_and_die("error writing to new file");
pascal@287 19 }
pascal@287 20 free(line);
pascal@287 21 -
pascal@287 22 - i++;
pascal@287 23 + lines_count--;
pascal@287 24 }
pascal@287 25 - return i;
pascal@287 26 + return lines_count;
pascal@287 27 }
pascal@287 28
pascal@287 29 /* If patch_level is -1 it will remove all directory names
pascal@287 30 @@ -49,26 +46,24 @@
pascal@287 31 * returns malloc'ed filename
pascal@287 32 */
pascal@287 33
pascal@287 34 -static char *extract_filename(char *line, int patch_level)
pascal@287 35 +static char *extract_filename(char *line, unsigned int patch_level)
pascal@287 36 {
pascal@287 37 char *temp, *filename_start_ptr = line + 4;
pascal@287 38 - int i;
pascal@287 39
pascal@287 40 /* Terminate string at end of source filename */
pascal@287 41 - temp = strchrnul(filename_start_ptr, '\t');
pascal@287 42 - *temp = '\0';
pascal@287 43 + line[strcspn(line,"\t\n")] = '\0';
pascal@287 44
pascal@287 45 /* Skip over (patch_level) number of leading directories */
pascal@287 46 - if (patch_level == -1)
pascal@287 47 - patch_level = INT_MAX;
pascal@287 48 - for (i = 0; i < patch_level; i++) {
pascal@287 49 + while (patch_level--) {
pascal@287 50 temp = strchr(filename_start_ptr, '/');
pascal@287 51 if (!temp)
pascal@287 52 break;
pascal@287 53 filename_start_ptr = temp + 1;
pascal@287 54 }
pascal@287 55
pascal@287 56 - return xstrdup(filename_start_ptr);
pascal@287 57 + temp = xstrdup(filename_start_ptr);
pascal@287 58 + free(line);
pascal@287 59 + return temp;
pascal@287 60 }
pascal@287 61
pascal@287 62 static int file_doesnt_exist(const char *filename)
pascal@287 63 @@ -82,22 +77,19 @@
pascal@287 64 {
pascal@287 65 int patch_level = -1;
pascal@287 66 char *patch_line;
pascal@287 67 - int ret;
pascal@287 68 - FILE *patch_file = NULL;
pascal@287 69 + FILE *patch_file = stdin;
pascal@287 70
pascal@287 71 {
pascal@287 72 char *p, *i;
pascal@287 73 - ret = getopt32(argv, "p:i:", &p, &i);
pascal@287 74 + int ret = getopt32(argv, "p:i:", &p, &i);
pascal@287 75 if (ret & 1)
pascal@287 76 patch_level = xatol_range(p, -1, USHRT_MAX);
pascal@287 77 if (ret & 2) {
pascal@287 78 patch_file = xfopen(i, "r");
pascal@287 79 - } else {
pascal@287 80 - patch_file = stdin;
pascal@287 81 }
pascal@287 82 - ret = 0;
pascal@287 83 }
pascal@287 84
pascal@287 85 + xfunc_error_retval = 2;
pascal@287 86 patch_line = xmalloc_getline(patch_file);
pascal@287 87 while (patch_line) {
pascal@287 88 FILE *src_stream;
pascal@287 89 @@ -122,18 +114,14 @@
pascal@287 90 /* FIXME: patch_line NULL check?? */
pascal@287 91
pascal@287 92 /* Extract the filename used before the patch was generated */
pascal@287 93 - original_filename = extract_filename(patch_line, patch_level);
pascal@287 94 - free(patch_line);
pascal@287 95 + original_filename = extract_filename(patch_line, (unsigned int) patch_level);
pascal@287 96
pascal@287 97 patch_line = xmalloc_getline(patch_file);
pascal@287 98 /* FIXME: NULL check?? */
pascal@287 99 if (strncmp(patch_line, "+++ ", 4) != 0) {
pascal@287 100 - ret = 2;
pascal@287 101 - bb_error_msg("invalid patch");
pascal@287 102 - continue;
pascal@287 103 + bb_error_msg_and_die("invalid patch: %s\n",patch_line);
pascal@287 104 }
pascal@287 105 - new_filename = extract_filename(patch_line, patch_level);
pascal@287 106 - free(patch_line);
pascal@287 107 + new_filename = extract_filename(patch_line, (unsigned int) patch_level);
pascal@287 108
pascal@287 109 if (file_doesnt_exist(new_filename)) {
pascal@287 110 char *line_ptr;
pascal@287 111 @@ -144,7 +132,6 @@
pascal@287 112 bb_make_directory(new_filename, -1, FILEUTILS_RECUR);
pascal@287 113 *line_ptr = '/';
pascal@287 114 }
pascal@287 115 - dst_stream = xfopen(new_filename, "w+");
pascal@287 116 backup_filename = NULL;
pascal@287 117 } else {
pascal@287 118 backup_filename = xmalloc(strlen(new_filename) + 6);
pascal@287 119 @@ -154,12 +141,11 @@
pascal@287 120 bb_perror_msg_and_die("cannot create file %s",
pascal@287 121 backup_filename);
pascal@287 122 }
pascal@287 123 - dst_stream = xfopen(new_filename, "w");
pascal@287 124 }
pascal@287 125
pascal@287 126 - if ((backup_filename == NULL) || file_doesnt_exist(original_filename)) {
pascal@287 127 - src_stream = NULL;
pascal@287 128 - } else {
pascal@287 129 + dst_stream = xfopen(new_filename, "w");
pascal@287 130 + src_stream = NULL;
pascal@338 131 + if (!file_doesnt_exist(original_filename) && backup_filename) {
pascal@287 132 if (strcmp(original_filename, new_filename) == 0) {
pascal@287 133 src_stream = xfopen(backup_filename, "r");
pascal@287 134 } else {
pascal@287 135 @@ -174,54 +160,59 @@
pascal@287 136 while (patch_line) {
pascal@287 137 unsigned int count;
pascal@287 138 unsigned int src_beg_line;
pascal@287 139 + unsigned int src_last_line = 1;
pascal@287 140 unsigned int unused;
pascal@287 141 unsigned int hunk_offset_start = 0;
pascal@287 142 - int hunk_error = 0;
pascal@287 143
pascal@287 144 /* This bit should be improved */
pascal@287 145 - if ((sscanf(patch_line, "@@ -%d,%d +%d,%d @@", &src_beg_line, &unused, &dest_beg_line, &unused) != 4) &&
pascal@287 146 - (sscanf(patch_line, "@@ -%d,%d +%d @@", &src_beg_line, &unused, &dest_beg_line) != 3) &&
pascal@287 147 - (sscanf(patch_line, "@@ -%d +%d,%d @@", &src_beg_line, &dest_beg_line, &unused) != 3)) {
pascal@287 148 + if ((sscanf(patch_line, "@@ -%d,%d +%d,%d @@", &src_beg_line,
pascal@287 149 + &src_last_line, &dest_beg_line, &unused) != 4) &&
pascal@287 150 + (sscanf(patch_line, "@@ -%d,%d +%d @@", &src_beg_line,
pascal@287 151 + &src_last_line, &dest_beg_line) != 3) &&
pascal@287 152 + (sscanf(patch_line, "@@ -%d +%d,%d @@", &src_beg_line,
pascal@287 153 + &dest_beg_line, &unused) != 3) &&
pascal@287 154 + (sscanf(patch_line, "@@ -%d +%d @@", &src_beg_line,
pascal@287 155 + &dest_beg_line) != 2)) {
pascal@287 156 /* No more hunks for this file */
pascal@287 157 break;
pascal@287 158 }
pascal@287 159 - free(patch_line);
pascal@287 160 hunk_count++;
pascal@287 161
pascal@287 162 if (src_beg_line && dest_beg_line) {
pascal@287 163 /* Copy unmodified lines upto start of hunk */
pascal@287 164 /* src_beg_line will be 0 if its a new file */
pascal@287 165 count = src_beg_line - src_cur_line;
pascal@287 166 - if (copy_lines(src_stream, dst_stream, count) != count) {
pascal@287 167 + if (copy_lines(src_stream, dst_stream, count)) {
pascal@287 168 bb_error_msg_and_die("bad src file");
pascal@287 169 }
pascal@287 170 src_cur_line += count;
pascal@287 171 dest_cur_line += count;
pascal@287 172 copy_trailing_lines_flag = 1;
pascal@287 173 }
pascal@287 174 - hunk_offset_start = src_cur_line;
pascal@287 175 + src_last_line += hunk_offset_start = src_cur_line;
pascal@287 176
pascal@287 177 - while ((patch_line = xmalloc_fgets(patch_file)) != NULL) {
pascal@287 178 + for (free(patch_line);
pascal@287 179 + (patch_line = xmalloc_fgets(patch_file)) != NULL;
pascal@287 180 + free(patch_line)) {
pascal@287 181 if ((*patch_line == '-') || (*patch_line == ' ')) {
pascal@287 182 char *src_line = NULL;
pascal@287 183 + if (src_cur_line == src_last_line) break;
pascal@287 184 if (src_stream) {
pascal@287 185 src_line = xmalloc_fgets(src_stream);
pascal@287 186 - if (!src_line) {
pascal@287 187 - hunk_error++;
pascal@287 188 - break;
pascal@287 189 - } else {
pascal@287 190 + if (src_line) {
pascal@287 191 + int diff = strcmp(src_line, patch_line + 1);
pascal@287 192 src_cur_line++;
pascal@287 193 + free(src_line);
pascal@287 194 + if (diff) {
pascal@287 195 + src_line = NULL;
pascal@287 196 + }
pascal@287 197 }
pascal@287 198 - if (strcmp(src_line, patch_line + 1) != 0) {
pascal@287 199 - bb_error_msg("hunk #%d FAILED at %d", hunk_count, hunk_offset_start);
pascal@287 200 - hunk_error++;
pascal@287 201 - free(patch_line);
pascal@287 202 - /* Probably need to find next hunk, etc... */
pascal@287 203 - /* but for now we just bail out */
pascal@287 204 - patch_line = NULL;
pascal@287 205 + if (!src_line) {
pascal@287 206 + bb_error_msg("hunk #%d FAILED at %d",
pascal@287 207 + hunk_count, hunk_offset_start);
pascal@287 208 + bad_hunk_count++;
pascal@287 209 break;
pascal@287 210 }
pascal@287 211 - free(src_line);
pascal@287 212 }
pascal@287 213 if (*patch_line == ' ') {
pascal@287 214 fputs(patch_line + 1, dst_stream);
pascal@287 215 @@ -233,16 +224,12 @@
pascal@287 216 } else {
pascal@287 217 break;
pascal@287 218 }
pascal@287 219 - free(patch_line);
pascal@287 220 - }
pascal@287 221 - if (hunk_error) {
pascal@287 222 - bad_hunk_count++;
pascal@287 223 }
pascal@287 224 }
pascal@287 225
pascal@287 226 /* Cleanup last patched file */
pascal@287 227 if (copy_trailing_lines_flag) {
pascal@287 228 - copy_lines(src_stream, dst_stream, -1);
pascal@287 229 + copy_lines(src_stream, dst_stream, (unsigned int) -1);
pascal@287 230 }
pascal@287 231 if (src_stream) {
pascal@287 232 fclose(src_stream);
pascal@287 233 @@ -251,16 +238,14 @@
pascal@287 234 fclose(dst_stream);
pascal@287 235 }
pascal@287 236 if (bad_hunk_count) {
pascal@287 237 - if (!ret) {
pascal@287 238 - ret = 1;
pascal@287 239 - }
pascal@287 240 bb_error_msg("%d out of %d hunk FAILED", bad_hunk_count, hunk_count);
pascal@287 241 + return 1;
pascal@287 242 } else {
pascal@287 243 /* It worked, we can remove the backup */
pascal@287 244 if (backup_filename) {
pascal@287 245 unlink(backup_filename);
pascal@287 246 }
pascal@287 247 - if ((dest_cur_line == 0) || (dest_beg_line == 0)) {
pascal@287 248 + if (dest_cur_line == 0) {
pascal@287 249 /* The new patched file is empty, remove it */
pascal@287 250 xunlink(new_filename);
pascal@287 251 if (strcmp(new_filename, original_filename) != 0)
pascal@287 252 @@ -273,5 +258,5 @@
pascal@287 253 * 1 = Some hunks failed
pascal@287 254 * 2 = More serious problems
pascal@287 255 */
pascal@287 256 - return ret;
pascal@287 257 + return 0;
pascal@287 258 }