Rev 30 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 23 | magnus | 1 | Author: Svante Signell <svante.signell@telia.com> |
| 2 | Author: Petter Reinholdtsen <pere@hungry.com> |
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| 3 | Author: Magnus Holmgren <magnus@debian.org> |
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| 4 | Bug-Debian: http://bugs.debian.org/657116 |
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| 5 | Description: Fix FTBFS on Hurd by dynamically allocating path names. |
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| 6 | Depends on no_static_buffers.patch, which introduced the th_pathname field. |
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| 7 | |||
| 8 | --- a/compat/basename.c |
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| 9 | +++ b/compat/basename.c |
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| 10 | @@ -34,13 +34,25 @@ static char rcsid[] = "$OpenBSD: basenam |
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| 11 | #include <errno.h> |
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| 12 | #include <string.h> |
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| 13 | #include <sys/param.h> |
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| 14 | +#include <stdlib.h> |
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| 15 | |||
| 16 | char * |
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| 17 | openbsd_basename(path) |
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| 18 | const char *path; |
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| 19 | { |
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| 20 | - static char bname[MAXPATHLEN]; |
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| 21 | + static char *bname = NULL; |
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| 22 | + static size_t allocated = 0; |
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| 23 | register const char *endp, *startp; |
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| 24 | + int len = 0; |
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| 25 | + |
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| 26 | + if (!allocated) { |
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| 27 | + allocated = 64; |
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| 28 | + bname = malloc(allocated); |
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| 29 | + if (!bname) { |
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| 30 | + allocated = 0; |
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| 31 | + return NULL; |
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| 32 | + } |
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| 33 | + } |
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| 34 | |||
| 35 | /* Empty or NULL string gets treated as "." */ |
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| 36 | if (path == NULL || *path == '\0') { |
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| 37 | @@ -64,11 +76,19 @@ openbsd_basename(path) |
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| 38 | while (startp > path && *(startp - 1) != '/') |
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| 39 | startp--; |
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| 40 | |||
| 41 | - if (endp - startp + 1 > sizeof(bname)) { |
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| 42 | - errno = ENAMETOOLONG; |
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| 43 | - return(NULL); |
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| 44 | + len = endp - startp + 1; |
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| 45 | + |
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| 46 | + if (len + 1 > allocated) { |
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| 47 | + size_t new_allocated = 2*(len+1); |
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| 48 | + void *new_bname = malloc(new_allocated); |
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| 49 | + if (!new_bname) |
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| 50 | + return NULL; |
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| 51 | + allocated = new_allocated; |
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| 52 | + free(bname); |
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| 53 | + bname = new_bname; |
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| 54 | } |
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| 55 | - (void)strncpy(bname, startp, endp - startp + 1); |
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| 56 | - bname[endp - startp + 1] = '\0'; |
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| 57 | + |
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| 58 | + (void)strncpy(bname, startp, len); |
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| 59 | + bname[len] = '\0'; |
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| 60 | return(bname); |
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| 61 | } |
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| 62 | --- a/compat/dirname.c |
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| 63 | +++ b/compat/dirname.c |
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| 64 | @@ -34,13 +34,25 @@ static char rcsid[] = "$OpenBSD: dirname |
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| 65 | #include <errno.h> |
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| 66 | #include <string.h> |
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| 67 | #include <sys/param.h> |
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| 68 | +#include <stdlib.h> |
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| 69 | |||
| 70 | char * |
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| 71 | openbsd_dirname(path) |
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| 72 | const char *path; |
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| 73 | { |
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| 74 | - static char bname[MAXPATHLEN]; |
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| 75 | + static char *bname = NULL; |
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| 76 | + static size_t allocated = 0; |
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| 77 | register const char *endp; |
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| 78 | + int len; |
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| 79 | + |
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| 80 | + if (!allocated) { |
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| 81 | + allocated = 64; |
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| 82 | + bname = malloc(allocated); |
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| 83 | + if (!bname) { |
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| 84 | + allocated = 0; |
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| 85 | + return NULL; |
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| 86 | + } |
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| 87 | + } |
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| 88 | |||
| 89 | /* Empty or NULL string gets treated as "." */ |
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| 90 | if (path == NULL || *path == '\0') { |
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| 91 | --- a/lib/append.c |
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| 92 | +++ b/lib/append.c |
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| 93 | @@ -38,7 +38,7 @@ typedef struct tar_dev tar_dev_t; |
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| 94 | struct tar_ino |
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| 95 | { |
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| 96 | ino_t ti_ino; |
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| 97 | - char ti_name[MAXPATHLEN]; |
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| 98 | + char ti_name[]; |
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| 99 | }; |
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| 100 | typedef struct tar_ino tar_ino_t; |
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| 101 | |||
| 102 | @@ -61,7 +61,7 @@ tar_append_file(TAR *t, const char *real |
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| 103 | libtar_hashptr_t hp; |
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| 104 | tar_dev_t *td = NULL; |
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| 105 | tar_ino_t *ti = NULL; |
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| 106 | - char path[MAXPATHLEN]; |
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| 107 | + char *path = NULL; |
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| 108 | |||
| 109 | #ifdef DEBUG |
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| 110 | printf("==> tar_append_file(TAR=0x%lx (\"%s\"), realname=\"%s\", " |
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| 111 | @@ -126,34 +126,39 @@ tar_append_file(TAR *t, const char *real |
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| 112 | } |
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| 113 | else |
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| 114 | { |
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| 115 | + const char *name; |
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| 116 | #ifdef DEBUG |
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| 117 | printf("+++ adding entry: device (0x%lx,0x%lx), inode %ld " |
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| 118 | "(\"%s\")...\n", major(s.st_dev), minor(s.st_dev), |
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| 119 | s.st_ino, realname); |
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| 120 | #endif |
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| 121 | - ti = (tar_ino_t *)calloc(1, sizeof(tar_ino_t)); |
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| 122 | + name = savename ? savename : realname; |
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| 123 | + ti = (tar_ino_t *)calloc(1, sizeof(tar_ino_t) + strlen(name) + 1); |
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| 124 | if (ti == NULL) |
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| 125 | return -1; |
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| 126 | ti->ti_ino = s.st_ino; |
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| 127 | - snprintf(ti->ti_name, sizeof(ti->ti_name), "%s", |
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| 128 | - savename ? savename : realname); |
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| 129 | + snprintf(ti->ti_name, strlen(name) + 1, "%s", name); |
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| 130 | libtar_hash_add(td->td_h, ti); |
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| 131 | } |
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| 132 | |||
| 133 | /* check if it's a symlink */ |
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| 134 | if (TH_ISSYM(t)) |
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| 135 | { |
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| 136 | - i = readlink(realname, path, sizeof(path)); |
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| 137 | + if ((path = malloc(s.st_size + 1)) == NULL) |
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| 138 | + return -1; |
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| 139 | + i = readlink(realname, path, s.st_size); |
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| 140 | if (i == -1) |
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| 141 | + { |
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| 142 | + free(path); |
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| 143 | return -1; |
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| 144 | - if (i >= MAXPATHLEN) |
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| 145 | - i = MAXPATHLEN - 1; |
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| 146 | + } |
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| 147 | path[i] = '\0'; |
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| 148 | #ifdef DEBUG |
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| 149 | printf(" tar_append_file(): encoding symlink \"%s\" -> " |
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| 150 | "\"%s\"...\n", realname, path); |
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| 151 | #endif |
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| 152 | th_set_link(t, path); |
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| 153 | + free(path); |
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| 154 | } |
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| 155 | |||
| 156 | /* print file info */ |
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| 157 | --- a/lib/decode.c |
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| 158 | +++ b/lib/decode.c |
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| 159 | @@ -29,10 +29,13 @@ th_get_pathname(TAR *t) |
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| 160 | if (t->th_buf.gnu_longname) |
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| 161 | return t->th_buf.gnu_longname; |
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| 162 | |||
| 163 | + size_t pathlen = |
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| 164 | + strlen(t->th_buf.prefix) + strlen(t->th_buf.name) + 2; |
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| 165 | + |
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| 166 | /* allocate the th_pathname buffer if not already */ |
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| 167 | if (t->th_pathname == NULL) |
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| 168 | { |
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| 169 | - t->th_pathname = malloc(MAXPATHLEN * sizeof(char)); |
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| 170 | + t->th_pathname = malloc(pathlen); |
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| 171 | if (t->th_pathname == NULL) |
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| 172 | /* out of memory */ |
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| 173 | return NULL; |
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| 174 | @@ -40,11 +43,11 @@ th_get_pathname(TAR *t) |
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| 175 | |||
| 176 | if (t->th_buf.prefix[0] == '\0') |
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| 177 | { |
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| 178 | - snprintf(t->th_pathname, MAXPATHLEN, "%.100s", t->th_buf.name); |
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| 179 | + snprintf(t->th_pathname, pathlen, "%.100s", t->th_buf.name); |
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| 180 | } |
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| 181 | else |
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| 182 | { |
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| 183 | - snprintf(t->th_pathname, MAXPATHLEN, "%.155s/%.100s", |
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| 184 | + snprintf(t->th_pathname, pathlen, "%.155s/%.100s", |
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| 185 | t->th_buf.prefix, t->th_buf.name); |
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| 186 | } |
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| 187 | |||
| 188 | --- a/lib/util.c |
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| 189 | +++ b/lib/util.c |
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| 190 | @@ -15,6 +15,7 @@ |
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| 191 | #include <stdio.h> |
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| 192 | #include <sys/param.h> |
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| 193 | #include <errno.h> |
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| 194 | +#include <stdlib.h> |
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| 195 | |||
| 196 | #ifdef STDC_HEADERS |
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| 197 | # include <string.h> |
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| 198 | @@ -25,13 +26,15 @@ |
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| 199 | int |
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| 200 | path_hashfunc(char *key, int numbuckets) |
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| 201 | { |
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| 202 | - char buf[MAXPATHLEN]; |
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| 203 | + char *buf; |
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| 204 | char *p; |
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| 205 | + int i; |
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| 206 | |||
| 207 | - strcpy(buf, key); |
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| 208 | + buf = strdup(key); |
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| 209 | p = basename(buf); |
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| 210 | - |
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| 211 | - return (((unsigned int)p[0]) % numbuckets); |
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| 212 | + i = ((unsigned int)p[0]) % numbuckets; |
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| 213 | + free(buf); |
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| 214 | + return (i); |
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| 215 | } |
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| 216 | |||
| 217 | |||
| 218 | @@ -77,15 +80,26 @@ ino_hash(ino_t *inode) |
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| 219 | int |
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| 220 | mkdirhier(char *path) |
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| 221 | { |
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| 222 | - char src[MAXPATHLEN], dst[MAXPATHLEN] = ""; |
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| 223 | - char *dirp, *nextp = src; |
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| 224 | - int retval = 1; |
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| 225 | + char *src, *dst = NULL; |
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| 226 | + char *dirp, *nextp = NULL; |
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| 227 | + int retval = 1, len; |
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| 228 | + |
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| 229 | + len = strlen(path); |
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| 230 | + if ((src = strdup(path)) == NULL) |
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| 231 | + { |
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| 232 | + errno = ENOMEM; |
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| 233 | + return -1; |
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| 234 | + } |
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| 235 | + nextp = src; |
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| 236 | |||
| 237 | - if (strlcpy(src, path, sizeof(src)) > sizeof(src)) |
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| 238 | + /* Make room for // with absolute paths */ |
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| 239 | + if ((dst = malloc(len + 2)) == NULL) |
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| 240 | { |
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| 241 | - errno = ENAMETOOLONG; |
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| 242 | + free(src); |
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| 243 | + errno = ENOMEM; |
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| 244 | return -1; |
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| 245 | } |
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| 246 | + dst[0] = '\0'; |
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| 247 | |||
| 248 | if (path[0] == '/') |
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| 249 | strcpy(dst, "/"); |
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| 250 | @@ -102,12 +116,18 @@ mkdirhier(char *path) |
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| 251 | if (mkdir(dst, 0777) == -1) |
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| 252 | { |
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| 253 | if (errno != EEXIST) |
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| 254 | + { |
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| 255 | + free(src); |
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| 256 | + free(dst); |
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| 257 | return -1; |
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| 258 | + } |
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| 259 | } |
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| 260 | else |
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| 261 | retval = 0; |
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| 262 | } |
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| 263 | |||
| 264 | + free(src); |
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| 265 | + free(dst); |
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| 266 | return retval; |
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| 267 | } |
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| 268 | |||
| 269 | --- a/lib/wrapper.c |
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| 270 | +++ b/lib/wrapper.c |
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| 271 | @@ -16,18 +16,18 @@ |
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| 272 | #include <sys/param.h> |
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| 273 | #include <dirent.h> |
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| 274 | #include <errno.h> |
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| 275 | +#include <stdlib.h> |
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| 276 | |||
| 277 | #ifdef STDC_HEADERS |
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| 278 | # include <string.h> |
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| 279 | #endif |
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| 280 | |||
| 281 | - |
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| 282 | int |
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| 283 | tar_extract_glob(TAR *t, char *globname, char *prefix) |
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| 284 | { |
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| 285 | char *filename; |
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| 286 | - char buf[MAXPATHLEN]; |
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| 287 | - int i; |
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| 288 | + char *buf = NULL; |
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| 289 | + int i, len; |
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| 290 | |||
| 291 | while ((i = th_read(t)) == 0) |
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| 292 | { |
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| 293 | @@ -41,11 +41,25 @@ tar_extract_glob(TAR *t, char *globname, |
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| 294 | if (t->options & TAR_VERBOSE) |
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| 295 | th_print_long_ls(t); |
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| 296 | if (prefix != NULL) |
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| 297 | - snprintf(buf, sizeof(buf), "%s/%s", prefix, filename); |
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| 298 | + { |
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| 299 | + len = strlen(prefix) + 1 + strlen(filename); |
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| 300 | + if ((buf = malloc(len + 1)) == NULL) |
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| 301 | + return -1; |
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| 302 | + sprintf(buf, "%s/%s", prefix, filename); |
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| 303 | + } |
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| 304 | else |
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| 305 | - strlcpy(buf, filename, sizeof(buf)); |
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| 306 | + { |
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| 307 | + len = strlen(filename); |
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| 308 | + if ((buf = malloc(len + 1)) == NULL) |
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| 309 | + return -1; |
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| 310 | + strcpy(buf, filename); |
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| 311 | + } |
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| 312 | if (tar_extract_file(t, buf) != 0) |
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| 313 | + { |
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| 314 | + free(buf); |
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| 315 | return -1; |
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| 316 | + } |
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| 317 | + free(buf); |
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| 318 | } |
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| 319 | |||
| 320 | return (i == 1 ? 0 : -1); |
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| 321 | @@ -56,8 +70,9 @@ int |
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| 322 | tar_extract_all(TAR *t, char *prefix) |
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| 323 | { |
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| 324 | char *filename; |
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| 325 | - char buf[MAXPATHLEN]; |
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| 326 | - int i; |
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| 327 | + char *buf = NULL; |
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| 328 | + size_t bufsize = 0; |
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| 329 | + int i, len; |
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| 330 | |||
| 331 | #ifdef DEBUG |
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| 332 | printf("==> tar_extract_all(TAR *t, \"%s\")\n", |
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| 333 | @@ -69,19 +84,34 @@ tar_extract_all(TAR *t, char *prefix) |
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| 334 | #ifdef DEBUG |
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| 335 | puts(" tar_extract_all(): calling th_get_pathname()"); |
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| 336 | #endif |
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| 337 | + |
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| 338 | filename = th_get_pathname(t); |
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| 339 | if (t->options & TAR_VERBOSE) |
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| 340 | th_print_long_ls(t); |
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| 341 | if (prefix != NULL) |
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| 342 | - snprintf(buf, sizeof(buf), "%s/%s", prefix, filename); |
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| 343 | + { |
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| 344 | + len = strlen(prefix) + 1 + strlen(filename); |
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| 345 | + if ((buf = malloc(len + 1)) == NULL) |
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| 346 | + return -1; |
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| 347 | + sprintf(buf, "%s/%s", prefix, filename); |
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| 348 | + } |
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| 349 | else |
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| 350 | - strlcpy(buf, filename, sizeof(buf)); |
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| 351 | + { |
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| 352 | + len = strlen(filename); |
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| 353 | + if ((buf = malloc(len + 1)) == NULL) |
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| 354 | + return -1; |
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| 355 | + strcpy(buf, filename); |
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| 356 | + } |
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| 357 | #ifdef DEBUG |
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| 358 | printf(" tar_extract_all(): calling tar_extract_file(t, " |
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| 359 | "\"%s\")\n", buf); |
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| 360 | #endif |
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| 361 | if (tar_extract_file(t, buf) != 0) |
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| 362 | + { |
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| 363 | + free(buf); |
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| 364 | return -1; |
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| 365 | + } |
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| 366 | + free(buf); |
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| 367 | } |
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| 368 | |||
| 369 | return (i == 1 ? 0 : -1); |
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| 370 | @@ -91,11 +121,14 @@ tar_extract_all(TAR *t, char *prefix) |
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| 371 | int |
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| 372 | tar_append_tree(TAR *t, char *realdir, char *savedir) |
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| 373 | { |
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| 374 | - char realpath[MAXPATHLEN]; |
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| 375 | - char savepath[MAXPATHLEN]; |
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| 376 | + char *realpath = NULL; |
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| 377 | + size_t realpathsize = 0; |
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| 378 | + char *savepath = NULL; |
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| 379 | + size_t savepathsize = 0; |
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| 380 | struct dirent *dent; |
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| 381 | DIR *dp; |
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| 382 | struct stat s; |
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| 383 | + int len; |
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| 384 | |||
| 385 | #ifdef DEBUG |
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| 386 | printf("==> tar_append_tree(0x%lx, \"%s\", \"%s\")\n", |
||
| 387 | @@ -122,11 +155,19 @@ tar_append_tree(TAR *t, char *realdir, c |
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| 388 | strcmp(dent->d_name, "..") == 0) |
||
| 389 | continue; |
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| 390 | |||
| 391 | - snprintf(realpath, MAXPATHLEN, "%s/%s", realdir, |
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| 392 | + len = strlen(realdir) + 1 + strlen(dent->d_name); |
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| 393 | + if ((realpath = malloc(len + 1)) == NULL) |
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| 394 | + return -1; |
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| 395 | + snprintf(realpath, len + 1, "%s/%s", realdir, |
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| 396 | dent->d_name); |
||
| 397 | if (savedir) |
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| 398 | - snprintf(savepath, MAXPATHLEN, "%s/%s", savedir, |
||
| 399 | + { |
||
| 400 | + len = strlen(savedir) + 1 + strlen(dent->d_name); |
||
| 401 | + if ((savepath = malloc(len + 1)) == NULL) |
||
| 402 | + return -1; |
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| 403 | + snprintf(realpath, len + 1, "%s/%s", savedir, |
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| 404 | dent->d_name); |
||
| 405 | + } |
||
| 406 | |||
| 407 | if (lstat(realpath, &s) != 0) |
||
| 408 | return -1; |
||
| 409 | @@ -135,13 +176,23 @@ tar_append_tree(TAR *t, char *realdir, c |
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| 410 | { |
||
| 411 | if (tar_append_tree(t, realpath, |
||
| 412 | (savedir ? savepath : NULL)) != 0) |
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| 413 | + { |
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| 414 | + free(realpath); |
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| 415 | + free(savepath); |
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| 416 | return -1; |
||
| 417 | + } |
||
| 418 | continue; |
||
| 419 | } |
||
| 420 | |||
| 421 | if (tar_append_file(t, realpath, |
||
| 422 | (savedir ? savepath : NULL)) != 0) |
||
| 423 | + { |
||
| 424 | + free(realpath); |
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| 425 | + free(savepath); |
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| 426 | return -1; |
||
| 427 | + } |
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| 428 | + free(realpath); |
||
| 429 | + free(savepath); |
||
| 430 | } |
||
| 431 | |||
| 432 | closedir(dp); |
||
| 433 | --- a/libtar/libtar.c |
||
| 434 | +++ b/libtar/libtar.c |
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| 435 | @@ -111,8 +111,9 @@ create(char *tarfile, char *rootdir, lib |
||
| 436 | { |
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| 437 | TAR *t; |
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| 438 | char *pathname; |
||
| 439 | - char buf[MAXPATHLEN]; |
||
| 440 | + char *buf = NULL; |
||
| 441 | libtar_listptr_t lp; |
||
| 442 | + int len; |
||
| 443 | |||
| 444 | if (tar_open(&t, tarfile, |
||
| 445 | #ifdef HAVE_LIBZ |
||
| 446 | @@ -133,17 +134,29 @@ create(char *tarfile, char *rootdir, lib |
||
| 447 | { |
||
| 448 | pathname = (char *)libtar_listptr_data(&lp); |
||
| 449 | if (pathname[0] != '/' && rootdir != NULL) |
||
| 450 | - snprintf(buf, sizeof(buf), "%s/%s", rootdir, pathname); |
||
| 451 | + { |
||
| 452 | + len = strlen(rootdir) + 1 + strlen(pathname); |
||
| 453 | + if ((buf = malloc(len + 1)) == NULL) |
||
| 454 | + return -1; |
||
| 455 | + snprintf(buf, len + 1, "%s/%s", rootdir, pathname); |
||
| 456 | + } |
||
| 457 | else |
||
| 458 | - strlcpy(buf, pathname, sizeof(buf)); |
||
| 459 | + { |
||
| 460 | + len = strlen(pathname); |
||
| 461 | + if ((buf = malloc(len + 1)) == NULL) |
||
| 462 | + return -1; |
||
| 463 | + strlcpy(buf, pathname, len + 1); |
||
| 464 | + } |
||
| 465 | if (tar_append_tree(t, buf, pathname) != 0) |
||
| 466 | { |
||
| 467 | fprintf(stderr, |
||
| 468 | "tar_append_tree(\"%s\", \"%s\"): %s\n", buf, |
||
| 469 | pathname, strerror(errno)); |
||
| 470 | tar_close(t); |
||
| 471 | + free(buf); |
||
| 472 | return -1; |
||
| 473 | } |
||
| 474 | + free(buf); |
||
| 475 | } |
||
| 476 | |||
| 477 | if (tar_append_eof(t) != 0) |