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| author | pfg <pfg@FreeBSD.org> | 2015-12-18 21:58:42 +0000 |
|---|---|---|
| committer | pfg <pfg@FreeBSD.org> | 2015-12-18 21:58:42 +0000 |
| commit | 0ba92f8ec128fc6965986160d6115ebd38484371 (patch) | |
| tree | 9df0ded00e2c48a18e3247aa0207ed5db6780dcc | |
| parent | 429291909c26af343690770fe6f943bf3d5c1cf0 (diff) | |
| download | FreeBSD-src-0ba92f8ec128fc6965986160d6115ebd38484371.zip FreeBSD-src-0ba92f8ec128fc6965986160d6115ebd38484371.tar.gz | |
ed(1): Prevent possible string overflows
CID: 1007252
MFC after: 2 weeks
| -rw-r--r-- | bin/ed/main.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/bin/ed/main.c b/bin/ed/main.c index 98bb300..138c183 100644 --- a/bin/ed/main.c +++ b/bin/ed/main.c @@ -505,7 +505,8 @@ exec_command(void) return ERR; else if (open_sbuf() < 0) return FATAL; - if (*fnp && *fnp != '!') strcpy(old_filename, fnp); + if (*fnp && *fnp != '!') + strncpy(old_filename, fnp, PATH_MAX); #ifdef BACKWARDS if (*fnp == '\0' && *old_filename == '\0') { errmsg = "no current filename"; @@ -532,7 +533,8 @@ exec_command(void) return ERR; } GET_COMMAND_SUFFIX(); - if (*fnp) strcpy(old_filename, fnp); + if (*fnp) + strncpy(old_filename, fnp, PATH_MAX); printf("%s\n", strip_escapes(old_filename)); break; case 'g': @@ -663,7 +665,7 @@ exec_command(void) GET_COMMAND_SUFFIX(); if (!isglobal) clear_undo_stack(); if (*old_filename == '\0' && *fnp != '!') - strcpy(old_filename, fnp); + strncpy(old_filename, fnp, PATH_MAX); #ifdef BACKWARDS if (*fnp == '\0' && *old_filename == '\0') { errmsg = "no current filename"; @@ -797,7 +799,7 @@ exec_command(void) return ERR; GET_COMMAND_SUFFIX(); if (*old_filename == '\0' && *fnp != '!') - strcpy(old_filename, fnp); + strncpy(old_filename, fnp, PATH_MAX); #ifdef BACKWARDS if (*fnp == '\0' && *old_filename == '\0') { errmsg = "no current filename"; |
