diff options
Diffstat (limited to 'lib/libpam.c')
-rw-r--r-- | lib/libpam.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/lib/libpam.c b/lib/libpam.c index 362c1159..db8ff205 100644 --- a/lib/libpam.c +++ b/lib/libpam.c @@ -549,16 +549,20 @@ process_header_line(char const buffer[], pamP->maxval = atoi(value); headerSeenP->maxval = TRUE; } else if (strcmp(label, "TUPLTYPE") == 0) { - int len = strlen(pamP->tuple_type); - if (len + strlen(value) + 1 > sizeof(pamP->tuple_type)-1) - pm_error("TUPLTYPE value too long in PAM header"); - if (len == 0) - strcpy(pamP->tuple_type, value); + if (strlen(value) == 0) + pm_error("TUPLTYPE header does not have any tuple type text"); else { - strcat(pamP->tuple_type, "\n"); - strcat(pamP->tuple_type, value); + size_t const oldLen = strlen(pamP->tuple_type); + if (oldLen + strlen(value) + 1 > sizeof(pamP->tuple_type)-1) + pm_error("TUPLTYPE value too long in PAM header"); + if (oldLen == 0) + strcpy(pamP->tuple_type, value); + else { + strcat(pamP->tuple_type, " "); + strcat(pamP->tuple_type, value); + } + pamP->tuple_type[sizeof(pamP->tuple_type)-1] = '\0'; } - pamP->tuple_type[sizeof(pamP->tuple_type)-1] = '\0'; } else pm_error("Unrecognized header line: '%s'. " "Possible missing ENDHDR line?", label); @@ -708,12 +712,11 @@ pnm_readpaminitrestaspnm(FILE * const fileP, case 1: *formatP = RPGM_FORMAT; break; - default: { + default: pm_error("Cannot treat PAM image as PPM or PGM, " "because its depth (%u) " "is not 1 or 3.", pam.depth); } - } *colsP = pam.width; *rowsP = pam.height; |